Moriond EW 2017 La Thuile. Wouter Hulsbergen (Nikhef, LHCb) on behalf of the ATLAS, CMS and LHCb collaboraeons
|
|
- Jerome Gray
- 5 years ago
- Views:
Transcription
1 Moriond EW 07 La Thuile Wouter Hulsbergen (Nikhef, LHCb) on behalf of the ATLAS, CMS and LHCb collaboraeons
2 Long-lived parecles at the LHC apple long-lived parecles (LLPs): resonances that live long enough to escape the detector P decay in the detector, but far enough from the PinteracEon point that the decay length can be measured ± L & mm LLPs at the LHC necessarily have lifeeme τ > ~ ps characterisec of weak decays narrow resonances (as Γ = h/τ)
3 Long-lived parecles in the Standard Model ] mass [ GeV/c leptons strange hadrons charm hadrons beauty hadrons τ ± KS ± K KL neutron 0 π π ± µ ± lifetime [ s ] weak decays are backgrounds for LLP searches LHC experiments look for parecles that do not fit this picture 3
4 DetecEon signatures at the LHC stable massive charged large de/dx slow (large Eme-of-flight) see talk by Aniello Spiezia stable neutral missing energy see SUSY and LHC DM talks meta-stable charged disappearing track see talk by Toshiaki Kaji meta-stable neutral displaced vertex/tracks jets without tracks main subject of this talk 4
5 What makes a parecle long-lived? textbook formula for lifeeme of the charged pion: small coupling constant r small mass spli`ng h = = f 56 m 6 4 g M W m µ m m m µ heavy messenger helicity suppression many examples in SUSY: small couplings: R-parity violaeng couplings, graviton LSP small mass spli`ng: Next-to-Lightest-SP heavy messenger: heavy squarks, Z-prime 5
6 One popular scenario: Hidden Valley quarks and leptons dark sector energy conneceon via heavy messenger or kineec mixing new long-lived parecle stable DM candidate scenario got renewed interest because of neutral/uncolored naturalness top partner coloured under a different SU(3) gauge group dark sector has its own hadronizaeon/confinement Higgs mixes with dark sector scalar and decays to dark sector parecles (see e.g. CurEn and Verhaaren, arxiv: ; Craig e.a., arxiv:50.053v, 6
7 Hidden Valley via a Higgs Portal SM Higgs mixes with scalar in hidden sector meta-stable dark sector parecle f t H 0 V f t V f Higgs-like coupling kinemaecs known (e.g. SM Higgs produceon) LLP decays prefereneally to heavy fermions (b,c,τ) f three parameters: m(h), m(π v ), τ(π v ) signature most studied: displaced jets alternaeve: fragmentaeon in hidden sector à emerging jets 7
8 LLP searches at the LHC wide program: see e.g. program of LHC LLP workshops ATLAS and CMS are well suited: large luminosity, efficient triggers, excellent tracking/calorimetry new in run-: topological triggers LHCb collects less luminosity, but is more efficient at low mass and lifeeme 53*((&3 "/% 7&35&9 3&$0/4536$5*0/ modest p T requirements; vertex triggers at very high rate common experimental issues, e.g. backgrounds: weak decays of heavy flavour material interaceons cosmic muons beam halo muons b b 8
9 Selected results ATLAS at 3 TeV: neutral LLP in calo (ATLAS-CONF-06-3) displaced lepton jets (ATLAS-CONF-06-04) CMS at 3 TeV,.6/t: displaced e-mu pairs (CMS PAS-EXO-06-0) inclusive displaced jets (CMS PAS-EXO ) LHCb at 7/8 TeV: displaced vertex with muon (LHCb-PAPER ) hidden valley pions decaying to di-jets (LHCb-PAPER ) scalar resonances in B Kμμ (LHCb-PAPER-06-5) 9
10 Inclusive displaced jets at 3 TeV at CMS CMS-PAS-EXO two models: Jet-Jet : H π V π V 4 quarks B-lepton : top squark pair produceon with lepton number violaeng decays t b µ + signature: 4 displaced hadronic jets displaced hadronic jets + evt. tau jets t analysis exploits topological triggers : high-p T jets with tracks compaeble with beam-line b Jets / 0.0 CMS Preliminary -.6 fb (3 TeV) mm mm 0mm 00mm QCD Data off-line seleceon uses several observables to enhance fraceon of displaced jets, e.g. max of sum p T associated to single PV Jet α max
11 Inclusive displaced jets at 3 TeV at CMS q CMS-PAS-EXO events with tagged jet used apple to esemate mistag probability as funceon of #tracks à allows to esemate per-event background yield in signal region in.6/t at 3 TeV: P P tracks N tags observed expected.09 ± (4.9 ±.0) 4 interpretaeon in models: T Jet-Jet model B-tau model (top squark) top squark results are most constraining for long-lived stops to date
12 Heavy Higgs decays to track-less jets at ATLAS ATLAS-CONF-06-3 model: heavy Higgs mixing with dark sector scalar signature: events with hadronic jets without tracks finite region in decay length: barrel:.0 < R xy < 3.6 m end-cap: 4. < R z < 5.4 m search tuned for LLPs with mass 0-50 GeV, pair produced in the decay of a scalar of GeV p p s s f f f f main backgrounds mule-jet background cosmics beam-halo muons main discriminants fraceon of hadronic energy ( CalRaEo ) jet width proximity of high-pt tracks to jet axis calo cluster Eme
13 Heavy Higgs decays to track-less jets at ATLAS ATLAS-CONF % CL Upper on σ BR [pb] 95% CL Upper Limit on σ x BR [pb] event yield in 3./; at 3 TeV: 4 observed 8.0 ± 6.3 expected background limits as funceon of lifeeme for different values of m φ and m S -I s = 3 TeV 3. fb m Φ = 400 GeV m s = 50 GeV m s = 0 GeV ATLAS Preliminary m φ =400 GeV BR [pb] 95% CL Upper Limit on σ s proper decay length [m] -I s = 3 TeV 3. fb m Φ = 600 GeV m s = 50 GeV m s = 50 GeV ATLAS Preliminary m φ =600 GeV BR [pb] 95% CL Upper Limit on σ s proper decay length [m] -I s = 3 TeV 3. fb m Φ = 00 GeV m s = 50 GeV m s = 50 GeV m s = 400 GeV ATLAS Preliminary in sensieve region 95%CL upper limits in range 0.- pb best sensievity obtained for lifeemes in range ns BR [pb] 95% CL Upper Limit on σ m φ =00 GeV -I s = 3 TeV 3. fb s proper decay length [m] m Φ = 00 GeV m s = 50 GeV m s = 50 GeV m s = 400 GeV ATLAS Prelimina 3
14 Hidden Valley v-pions decaying to jet pairs at LHCb model: Higgs decay to two LLPs each decaying to two fermions LHCb-PAPER H 0 V V b b b b LHCb signature: single displaced vertex with two associated jets (LHCb acceptance for all 4 jets is small, only few %) QCD background analysis strategy trigger on displaced vertex find two associated jets extract signal from fit to di-jet mass in bins of distance to beam axis (R xy ) Candidates / (GeV/c ) 4 3 LHCb,.0/t, 7,8 TeV preliminary LHCb 3.0 < R xy < 5.0 mm hypotheecal 35 GeV signal Mass (GeV/c ) 4
15 LHCb Hidden Valley v-pions decaying to jet pairs at LHCb no excess above background in.0/t of 7/8 TeV data place 95% CL upper limits on BR( H 0 (5) π V π V, π V bb ) for 5 < m < 50 GeV and < τ < 500 ps most sensieve point (m=50 GeV, t= ps) exclude BR > % 95% CL Upper Limit on σ / σ SM arxiv: m π m π m π = GeV V =5 GeV V =40 GeV V ATLAS - - s = 8 TeV, 9.5 fb, 0.3 fb m H = 5 GeV π v arxiv: m π m π m π = GeV V =5 GeV V =40 GeV V (σ/σ SM gg H 0) (H0 π v π v ) BR 5% BR 5% BR % proper lifetime (cτ) [m] 3 m πv = 5 GeV/c m πv = 35 GeV/c m πv = 43 GeV/c m πv = 50 GeV/c m πv m πv = 35 GeV/c, π v cc = 35 GeV/c, π v ss LHCb-PAPER LHCb.0/t, LHCb 7,8 TeV preliminary 3 lifetime (ps) compared to similar analyses from ATLAS (le ) and CMS, LHCb is more sensieve in region with small mass and lifeeme 5
16 Displaced lepton jets at 3 TeV at ATLAS (see also V. MarEnez Outschoorn in Sunday session!) FRVZ (*) model: Higgs decays to dark sector fermions, that radiate dark photons decaying to lepton pairs lightest stable dark parecle dark sector fermion HLSP photon portal ATLAS-CONF γ d H f d f d HLSP l + l - collimated leptons Higgs portal γ d search strategy: look for events with or 4 jets consiseng of pairs of muons, electrons or pions without tracks l - l + (*) Falkowski-Ruerman-Volansky-Zupan, JHEP05(0)077, PRL5(0)480 6
17 Displaced lepton jets at 3 TeV at ATLAS ATLAS-CONF observed event yields in 3.4/t compaeble with background observed exp.bkg. H(5) γ d + X H(5) 4 γ d + X 46 3 ± 9 ± 96 ± results interpreted in FRVZ model with dark photon mass of 400 MeV: RFVZ +X) [pb] 95% CL Limit on σ BR(H γ d ATLAS Preliminary fb, s = 3 TeV FRVZ γ model BR(H γ +X) = 0% d BR(H γ +X) = % d d m H = 5 GeV m γ = 400 MeV d +X) [pb] 95% CL Limit on σ BR(H 4γ d ATLAS Preliminary fb, s = 3 TeV FRVZ 4γ model d m H = 5 GeV m γ = 400 MeV BR(H 4γ +X) = 0% d BR(H 4γ +X) = % d d 95%CL limit on BR(H (4) γ d +X) versus dark photon lifefme observed limit expected limit expected ± σ expected ± σ observed limit expected limit expected ± σ expected ± σ Dark photon cτ [mm] Dark photon cτ [mm] Higgs branching fraceon larger than % excluded for < cτ < mm see paper for limits on model with Higgs of 800 GeV 3 7
18 Displaced e-mu pairs at 3 TeV at CMS model: top squark pair produceon with lepton number violaeng R-parity violaeon signature: displaced, non-vertexed muon-electron pairs t t CMS-PAS-EXO-6-0 b e + µ electron impact parameter main background: semileptonic b and c decays e d0 [μm] shape esemated using B-tagged tag-and-probe method yield esemated with ABCD method CR I CR III CR II SR I SR II CR IV μ d 0 [μm] SR III muon impact parameter control region (electron replaced with B-tagged jet) < Entries / µm > (Bkgd. Scaled to Data) CMS Preliminary muon d [µm] 0 b pb (3 TeV) Data stat. errors HF tt W lν Single top + - Z l l diboson muon impact parameter 8
19 Displaced e-mu pairs at 3 TeV at CMS CMS-PAS-EXO-6-0 event yield in different signal regions in.6 t - at 3 TeV e d0 [μm] CR I CR III CR II SR I SR II CR IV SR III μ d 0 [μm] SR esemated background observed expected stop (cm,700 GeV) III < ± 0.3 II < ± 0.3 I < ± 0.4 interpretaeon in context of stop pair produceon, for simplified model with decoupled squarks and gluinos: similar displaced di-lepton analyses in RUN- data: CMS, PRL4(5)0680 ATLAS,PRD9(05)07004 top squark cτ [cm] [cm] top squark cτ - - CMS Preliminary ± std. deviation ± std. deviation Expected Observed -.6 fb (3 TeV) top squark mass [GeV] top squark mass [GeV] exclusion limit at 95% CL 9
20 Entries/( G Semi-leptonic LLP decays at LHCb at 7 and 8 TeV Entries/(.5 GeV/c ) model: msugra neutralino decaying to a lepton and quarks signature: single displaced vertex with muon LHCb Data 8 TeV Fit: total background signal c) m χ = 38 GeV LLP mass [GeV/c ] Entries/( GeV/c ) LHCb H 0 0 Data 8 TeV Fit: total background signal d) LLP mass [GeV/c ] result: no excess above background, at 7 and 8 TeV one example of H(5) χχ limit Figure 3: Reconstructed mass of the LLP candidate from the 8 TeV dataset. The two top plots correspond interpretaeon to eventsin with various candidates models, selecteda.o. from the background region of the muon isolation variable. They are fitted with the sum of two exponential functions. In the bottom row the candidates non-resonant from thesignal neutralino region areproduceon fitted including LHCba specific signal shape, added to p the background produceon component. in Subfigures squark a) decays and c) correspond s =8 to TeV the analysis which assumes the LV38 5 ps signal model, b) and d) are for LV98 ps. Cross-section [pb] produceon in Higgs decays (see right) as funceon of χ mass and lifeeme LLP =5ps at most sensieve - point (~50GeV, ~ps) reject BR(H χχ) > % LLP mass signal yield extracted from fit to vertex invariant mass [GeV/c ] Cross-section [pb] - LLP =ps LHCb-PAPER LLP mass u d µ LHCb p s =8 TeV 0 [GeV/c ]
21 B + Long lifetime: Hidden sector χ μ + μ - b in B + K + μ + μ - at LHCb t b s quark transieons give access to new light narrow scalar resonances (prompt) axion (e.g. Freytsis, LigeE and Thaler, arxiv: ) (long-lived) inflaton (e.g. Bezrukov and Gorbunov, arxiv: ) t via mixing with SM Higgs u u b t s H 0 µ e + b µ + K + 5of3 Inflaton [JHEP05(0)0] Displaced vertex Almost background free Lower reconstruction e LHCb-PAPER K μ ciency μ experimental method: search for narrow peak in μμ invariant mass in B Kμμ decays, in 3 different μμ lifeeme bins normalize to 6 B J/ψ K decays ) Candidates / ( 3.3 MeV/c LHCb Data Signal Background m(b ) [MeV/c ]
22 ] [rad θ Hidden sector χ μ + μ - in B + K + μ + μ - at LHCb no signal above background in 3.0/t of 7/8 TeV data obtained 95% CL on branching fraceon as funceon of m χ and τ χ white areas excluded because of backgrounds from Ks, φ(40), J/ψ, ψ(s) and ψ(460) 4 5 Theory CHARM LHCb 95% CL B 0 K * 0 χ + + B K χ ~ = = 8 m 4M W f m µ m m µ = = f 56 m jet (PV) = apple g M W m µ m PtracksPV ptracks T Ptracks ptracks T N tags observed expected.09 ± (4.9 ±.0) 4 L & mm & ps interpretaeon in inflaton model: LHCb-PAPER m m µ B(B +! K + ) / Higgs-inflaton ( ) / / mixing Theory Cosmological constraints [GeV/c ] m χ à most of parameter space excluded similar searches for LLPs in B decays: χ μμ in B K*μμ (PRL 5, 680 (05)) N μπ in B πμμ (PRL,380 (04))
23 Summary long-lived parecle signature is well-moevated and gaining in popularity R-parity violaeng SUSY, sterile neutrinos, hidden valleys wide variety of searches this talk: new results on signatures with a displaced vertex for other signatures, see talks by Spiezia and Kaji no discovery so far but we keep looking! next LHC LLP workshop (CERN, 4-6 April 07) hžps://indico.cern.ch/event/60734/ missing signatures triggers recaseng 3
24 BACKUP 4
25 ATLAS Long-lived Particle Searches* - 95% CL Exclusion Status: July 05 Model Signature L dt[fb ] Lifetime limit Reference RPV χ 0 eeν/eµν/µµν displaced lepton pair 0.3 χ mm m( g) =.3TeV, m(χ0 )=.0TeV lifetime ATLAS Preliminary L dt =( )fb s =8TeV GGM χ 0 Z G displaced vtx + jets 0.3 χ mm m( g) =.TeV, m(χ 0 )=.0TeV lifetime SUSY AMSB pp χ ± χ0, χ+ χ disappearing track 0.3 χ ± m(χ ± lifetime m )=450GeV AMSB pp χ ± χ0, χ+ χ large pixel de/dx 8.4 χ ± m(χ ± lifetime m )=450GeV GMSB non-pointing or delayed γ 0.3 χ m SPS8 with Λ=00TeV lifetime Stealth SUSY ID/MSvertices 9.5 S lifetime m m( g) =500GeV Hidden Valley H π vπ v low-emftracklessjets 0.3 π v lifetime m m(π v)=5gev Higgs BR = % Hidden Valley H π vπ v ID/MSvertices 9.5 π v lifetime m m(π v)=5gev FRVZ H γ d + X e, µ, π jets 0.3 γ d lifetime 4-40 mm H γ d + X, m(γ d )=400MeV FRVZ H 4γ d + X e, µ, π jets 0.3 γ d lifetime 5-60 mm H 4γ d + X, m(γ d )=400MeV Higgs BR = 5% 300 GeV scalar Hidden Valley H π vπ v low-emftracklessjets 0.3 π v lifetime m m(π v)=5gev Hidden Valley H π vπ v ID/MSvertices 9.5 π v lifetime m m(π v)=5gev FRVZ H 4γ d + X e, µ, π jets 0.3 γ d lifetime 8-60 mm H 4γ d + X, m(γ d )=400MeV Hidden Valley Φ π vπ v low-emftracklessjets 0.3 π v lifetime m σ BR = pb, m(π v)=50gev Hidden Valley Φ π vπ v ID/MSvertices 9.5 π v lifetime m σ BR = pb, m(π v)=50gev GeV scalar Hidden Valley Φ π vπ v low-emftracklessjets 0.3 π v lifetime m σ BR = pb, m(π v)=50gev Hidden Valley Φ π vπ v ID/MSvertices 9.5 π v lifetime m σ BR = pb, m(π v)=50gev Other HV Z ( TeV) q vq v ID/MSvertices 0.3 π v lifetime m σ BR = pb, m(π v)=50gev HV Z ( TeV) q vq v ID/MSvertices 0.3 π v lifetime 0.-. m σ BR = pb, m(π v)=50gev s =8TeV cτ [m] *Only a selection of the available lifetime limits on new states is shown. hžps://twiki.cern.ch/twiki/bin/view/atlaspublic/exoecspublicresults hžps://twiki.cern.ch/twiki/bin/view/atlaspublic/supersymmetrypublicresults 5
26 ~ ~ RPV SUSY, t bl, m( t) = 40 GeV - 8 TeV, 9.7 fb (displaced leptons) CMS long-lived particle searches, lifetime exclusions at 95% CL H XX (%), X ee, m(h) = 5 GeV, m(x) = 0 GeV - 8 TeV, 9.6 fb H XX (%), X µµ, m(h) = 5 GeV, m(x) = 0 GeV - 8 TeV, 0.5 fb 0 0 GMSB SPS8, χ G ~ γ, m( χ ) = 50 GeV ~ 0 RPV SUSY, m( q) = 00 GeV, m( χ ) = 50 GeV ~ 0 RPV SUSY, m( q) = 00 GeV, m( χ ) = 500 GeV ± ± 0 ± AMSB χ, χ χ + π ±, m( χ ) = 00 GeV cloud model R-hadron, m( ~ g) = 00 GeV ± ± AMSB χ, tan(β) = 5, µ > 0, m( χ ) = 800 GeV ± ± AMSB χ, tan(β) = 5, µ > 0, m( χ ) = 00 GeV - 8 TeV, 8.5 fb - 8 TeV, 8.5 fb 8 TeV, 9.7 fb 0 0 GMSB SPS8, χ G ~ γ, m( χ ) = 50 GeV 8 TeV, 9. fb - 8 TeV, 9.5 fb TeV, 8.6 fb - 8 TeV, 8.8 fb - 8 TeV, 8.8 fb (displaced leptons) (displaced leptons) (disp. photon conv.) (disp. photon timing) (displaced dijets) (displaced dijets) (disappearing tracks) (stopped particle) (tracker + TOF) (tracker + TOF) cτ [m] hžps://twiki.cern.ch/twiki/bin/view/cmspublic/physicsresultsexo 6
27 CMS-PAS-EXO CMS Preliminary -.7 fb ~ ~ Long-lived t t llbb reinterpretation of (3 TeV) scalar LQ LQ µµjj (CMS EXO-6-007) ) [cm] ~ t cτ( Expected 95% CL upper limit Observed 95% CL upper limit CMS EXO-6-0 Observed limit M ~ [GeV] t Example of reinterpretaeon in CMS: constraints on long-lived stop pair produceon from a lepto-quark analysis 7
Seaches fo log-lived paticles with displaced signatues at the LHC. Daniela Salvatore (INFN Cosenza) on behalf of the ATLAS and CMS Collaborations
Seaches fo log-lived paticles with displaced signatues at the LHC Daniela Salvatore (INFN Cosenza) on behalf of the ATLAS and CMS Collaborations Outline A review of the most recent results from ATLAS &
More informationSearch for long-lived particles at CMS. TeVPA Brian Francis for the CMS Collaboration
Search for long-lived particles at CMS TeVPA 7 Brian Francis for the CMS Collaboration Long-lived particles (LLP) at CMS Despite best efforts, no evidence yet of BSM physics at the LHC If it s not where
More informationLong lived particle decay LHC. Simone Gennai on behalf of the ATLAS, CMS and LHCb Collaborations
Long lived particle decay searches @ LHC Simone Gennai on behalf of the ATLAS, CMS and LHCb Collaborations 1 Why searching for LLP? 2 Standard Model includes quite few LLP it is natural to assume they
More informationSearch for long-lived particles at CMS
Search for long-lived particles at CMS Jie Chen Florida State University for the CMS Collaboration 03/19/12 Jie Chen @ SEARCH12 1 Outline Brief introduction to long-lived particle Neutral long-lived particles
More informationRecent results from the LHCb experiment
Recent results from the LHCb experiment University of Cincinnati On behalf of the LHCb collaboration Brief intro to LHCb The Large Hadron Collider (LHC) proton-proton collisions NCTS Wksp. DM 2017, Shoufeng,
More informationSearches for exotica at LHCb
Searches for exotica at LHCb Lorenzo Sestini Università di Padova e INFN LHCb Implications Workshop, Geneve-Cern, 3-11-2015 Searches for exotics LHCb can be complementary to ATLAS and CMS in the search
More informationExotica in CMS. ICNFP 2015 Kolymbari, Crete 25 August Claudia-Elisabeth Wulz CMS Collaboration Institute of High Energy Physics, Vienna
Exotica in ICNFP 5 Kolymbari, Crete 5 August 5 Claudia-Elisabeth Wulz Collaboration Institute of High Energy Physics, Vienna Overview Selected recent results: - Dark matter searches EXO4-4, EXO-54, EXO-48,
More informationSUSY searches at LHC and HL-LHC perspectives
SUSY searches at LHC and HL-LHC perspectives Maximilian Goblirsch-Kolb, on behalf of the ATLAS and CMS collaborations 26.10.2017, LCWS 2017, Strasbourg SUSY particle production in p-p collisions Two main
More informationCarlos Sandoval Universidad Antonio Nariño On behalf of the ATLAS collaboration DIS Kobe, Japan
Carlos Sandoval Universidad Antonio Nariño On behalf of the ATLAS collaboration DIS 2018 - Kobe, Japan 1 Search for long-lived massive particles (LLP) in events with displaced vertices (DV): arxiv:1710.04901v1
More informationSearches for heavy long-lived particles at LHCb
Searches for heavy long-lived particles at LHCb Marcin Chrząszcz mchrzasz@cernch SUSY 2015, Tahoe City, 23-29 August, 2015 1 / Marcin Chrząszcz (Universität Zürich) Searches for heavy long-lived particles
More informationSUSY at Accelerators (other than the LHC)
SUSY at Accelerators (other than the LHC) Beate Heinemann, University of Liverpool Introduction Final LEP Results First Tevatron Run 2 Results Summary and Outlook IDM 2004, Edinburgh, September 2004 Why
More informationSUSY Phenomenology & Experimental searches
SUSY Phenomenology & Experimental searches Alex Tapper Slides available at: http://www.hep.ph.ic.ac.uk/tapper/lecture.html Reminder Supersymmetry is a theory which postulates a new symmetry between fermions
More informationSUSY Search Strategies at Atlas and CMS
1 SUSY Search Strategies at Atlas and CMS (Universität Hamburg) for the Atlas and CMS Collaborations All-hadronic SUSY search Leptonic Inclusive SUSY search Reach in the msugra plane supported by: SUSY
More informationSearch for squarks and gluinos with the ATLAS detector. Jeanette Lorenz (LMU München)
Search for squarks and gluinos with the ATLAS detector Jeanette Lorenz (LMU München) Research Area B Science Day, Supersymmetry Symmetry between fermions and bosons Only possible extension of Poincare
More informationSearches for long-lived particles at CMS
Searches for long-lived particles at CMS After a few year s of LHC running, CMS has published several searches for long-lived, exotic particles. What motivates these searches? What strengths & weaknesses
More informationSUSY at Accelerators (other than the LHC)
SUSY at Accelerators (other than the LHC) Beate Heinemann, University of Liverpool Introduction Final LEP Results First Tevatron Run 2 Results Summary and Outlook IDM 2004, Edinburgh, September 2004 Why
More informationSearches for Exotica with CMS
Searches for Exotica with CMS Albert De Roeck CERN, Geneva, Switzerland Antwerp University Belgium UC-Davis California USA NTU, Singapore 17 th May 2017 Introduction to Searches Searches for Outline New
More informationCMS Searches for SUSY in Final States with Taus. Alfredo Gurrola (Vanderbilt) on behalf of the CMS Collaboration
CMS Searches for SUSY in Final States with Taus Alfredo Gurrola (Vanderbilt) on behalf of the CMS Collaboration Why SUSY with Taus? 2 Theoretical motivation ( Naturalness ) SUSY can cancel top loop corrections
More informationSearches for Supersymmetry at ATLAS
Searches for Supersymmetry at ATLAS Renaud Brunelière Uni. Freiburg On behalf of the ATLAS Collaboration pp b b X candidate 2 b-tagged jets pt 52 GeV and 96 GeV E T 205 GeV, M CT (bb) 20 GeV Searches for
More informationarxiv: v1 [hep-ex] 8 Nov 2010
Searches for Physics Beyond the Standard Model at CMS Sung-Won Lee, on behalf of the CMS Collaboration Texas Tech University, Lubbock, TX 799, USA Recent results on searches for physics beyond the Standard
More informationThe search for missing energy events at the LHC and implications for dark matter search (ATLAS and CMS)
The search for missing energy events at the LHC and implications for dark matter search (ATLAS and CMS) Valery P. Andreev UCLA representing the CMS collaboration th UCLA Symposium on Sources and Detection
More informationTop Quark Physics at the LHC
Top Quark Physics at the LHC Ayana Arce HEP 0 Lectures #7 March 4, 203 Outline Introduction 2 Why are top quarks interesting? 3 Creating Top Quarks 4 Identifying Top Quarks 5 Some LHC results 6 Beyond
More informationRecent results on search for new physics at BaBar
Recent results on search for new physics at BaBar B. Oberhof* *LNF-INFN, Italy on behalf of the BaBar Collaboration International Symposium Advances in Dark Matter and Particle Physics Messina, Italy 25th
More informationCollider Physics Analysis Procedures
Collider Physics Analysis Procedures Alex Tapper Slides available at: http://www.hep.ph.ic.ac.uk/~tapper/lecture.html Aim Overview of analysis techniques at CMS Contrast with Tevatron (see DØ lecture)
More informationEarly SUSY searches at the LHC
Early SUSY searches at the LHC Alex Tapper Searching for SUSY at the LHC and interplay with astroparticle physics Institute of Physics Workshop, 24 th March 20, Imperial College London Introduction Many
More informationTriggering on Long-lived neutral particles in ATLAS
Triggering on Long-lived neutral particles in ATLAS Our theoretical friends tell us that many extensions of the Standard Model that address the hierarchy problem contain new sectors These new sectors decouple
More informationOn behalf of the ATLAS and CMS Collaborations
On behalf of the ATLAS and CMS Collaborations Reza Goldouzian Université libre de Bruxelles 1 Ø There are several models of physics beyond the standard model require new particles that couple to quarks
More informationThe Compact Muon Solenoid Experiment. Conference Report. Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland
Available on CMS information server CMS CR -207/27 The Compact Muon Solenoid Experiment Conference Report Mailing address: CMS CERN, CH2 GENEVA 23, Switzerland 05 May 207 (v3, May 207) Search for unconventional
More informationStatus of ATLAS+CMS SUSY searches
Status of ATLAS+CMS SUSY searches Renaud Brunelière Uni. Freiburg ~ ~ pp b b1 X candidate 2 b-tagged jets pt ~ 152 GeV and 96 GeV E miss T ~ 205 GeV, M CT (bb) ~ 201 GeV Status of ATLAS+CMS SUSY searches
More informationDiscovery Physics at the Large Hadron Collider
+ / 2 GeV N evt 4 10 3 10 2 10 CMS 2010 Preliminary s=7 TeV -1 L dt = 35 pb R > 0.15 R > 0.20 R > 0.25 R > 0.30 R > 0.35 R > 0.40 R > 0.45 R > 0.50 10 1 100 150 200 250 300 350 400 [GeV] M R Discovery
More informationLHCP conference Bologna, June 4th June 9th, 2018 Frédéric Machefert for the LHCb collaboration
(In)direct Search of SUSY at LHCb LHCP conference Bologna, June 4th June 9th, 2018 Frédéric Machefert for the LHCb collaboration Introduction The LHCb experiment performs complementary searches for SUSY
More informationSearch for Displaced Supersymmetry using the Compact Muon Solenoid Detector
Search for Displaced Supersymmetry using the Compact Muon Solenoid Detector L. Antonelli, F. Blekman, A. Hart, N. Heracleous, C. Hill, B. Liu, and Q. Python for the CMS Collaboration 1 Outline Motivation!
More informationSEARCH FOR PHYSICS BEYOND STANDARD MODEL AT THE LHC. Daniele del Re Sapienza Università & INFN Sezione Roma
SEARCH FOR PHYSICS BEYOND STANDARD MODEL AT THE LHC Daniele del Re Sapienza Università & INFN Sezione Roma WHY BSM Several open issues implying Physics beyond Standard Model. Some examples: 1. Why only
More informationPhysics at the Tevatron. Lecture IV
Physics at the Tevatron Lecture IV Beate Heinemann University of California, Berkeley Lawrence Berkeley National Laboratory CERN, Academic Training Lectures, November 2007 1 Outline Lecture I: The Tevatron,
More informationSearch for Dark Matter in the mono-x* final states with ATLAS
Search for Dark Matter in the mono-x* final states with (on behalf of the Collaboration) Rencontres de Moriond (EW) 08 *: X = jet, Z, W, H Probing Dark Matter (DM) Underlying assumption: DM has also non-gravitational
More informationHiggs and New Physics at ATLAS and CMS
Higgs and New Physics at ATLAS and CMS F. Malek, LPSC-Grenoble for the ATLAS and CMS Collaborations 56th International Winter Meeting on Nuclear Physics 22-26 January 2018, Bormio-Italy ATLAS and CMS experiments
More informationSearches for Beyond SM Physics with ATLAS and CMS
Searches for Beyond SM Physics with ATLAS and CMS (University of Liverpool) on behalf of the ATLAS and CMS collaborations 1 Why beyond SM? In 2012 the Standard Model of Particle Physics (SM) particle content
More informationSearch for Supersymmetry at CMS in all-hadronic final states
Search for Supersymmetry at CMS in all-hadronic final states The 9th Particles and Nuclei International Conference, MIT Matthias Schröder (Universität Hamburg) on behalf of the CMS Collaboration 5 July
More informationEarly SUSY searches at the LHC
on behalf of the ATLAS and CMS Collaborations Imperial College London E-mail: a.tapper@imperial.ac.uk Supersymmetry may give rise to striking events that could be discovered early in LHC running. Search
More informationSearches with Displaced Lepton-Jet Signatures
Searches with Displaced Lepton-Jet Signatures LHC Searches for Long-Lived BSM Particles: Theory Meets Experiment University of Massachusetts Amherst Nov 13 2015 Miriam Diamond University of Toronto ATLAS
More informationSearches for SUSY & Exotics with ATLAS
Searches for SUSY & Exotics with ATLAS Evelyn Thomson University of Pennsylvania May 17 2017 BLV 2017 Cleveland, Ohio 1 Outline Introduction Supersymmetry searches Gluinos Scalar top Electroweakinos Exotic
More informationBSM Physics at the LHC, HERA
BSM Physics at the LHC, HERA Few topics that could be interesting for EIC Elisabetta Gallo 19/12/2018 For HERA results Results taken from old slides Leptoquarks l e q LQ e,n q e q LQ q e,n e + e LQ q q
More informationHiggs Searches and Properties Measurement with ATLAS. Haijun Yang (on behalf of the ATLAS) Shanghai Jiao Tong University
Higgs Searches and Properties Measurement with ATLAS Haijun Yang (on behalf of the ATLAS) Shanghai Jiao Tong University LHEP, Hainan, China, January 11-14, 2013 Outline Introduction of SM Higgs Searches
More informationarxiv: v1 [hep-ph] 29 Dec 2017 SUSY (ATLAS) André Sopczak on behalf of the ATLAS Collaboration
arxiv:1712.10165v1 [hep-ph] 29 Dec 2017 SUSY (ATLAS) André Sopczak on behalf of the ATLAS Collaboration Institute of Experimental and Applied Physics, Czech Technical University in Prague, Czech Republic
More informationThe HL-LHC physics program
2013/12/16 Workshop on Future High Energy Circular Collider 1 The HL-LHC physics program Takanori Kono (KEK/Ochanomizu University) for the ATLAS & CMS Collaborations Workshop on Future High Energy Circular
More informationSearches for SUSY in Final States with Photons
SUSY4: The nd International Conference on Supersymmetry and Unification of Fundamental Interactions" -6 July 4, Manchester, England" Searches for SUSY in Final States with Photons On Behalf of the CMS
More informationCMS Searches for SUSY in Hadronic Final States
CMS Searches for SUSY in Hadronic Final States Teruki Kamon on behalf of the CMS Collaboration Mitchell Institute for Fundamental Physics and Astronomy Texas A&M University JnHF 2018: Santa Fe Jets and
More informationJet reconstruction in LHCb searching for Higgs-like particles
Jet reconstruction in LHCb searching for Higgs-like particles Alessandro Camboni (on behalf of LHCb Collaboration) DISCRETE'08 Valencia Dec 12th, 2008 Motivation Jet reconstruction is important for searches
More informationSearches for new physics at ATLAS
1 Searches for new physics at ATLAS Gökhan Ünel U.C. Irvine On behalf of the ATLAS collaboration ICPP 2011 Istanbul Outline 2 LHC has been giving us data at ever increasing pace. Lint =1 fb reached as
More informationSearch for top squark pair production and decay in four bodies, with two leptons in the final state, at the ATLAS Experiment with LHC Run2 data
Search for top squark pair production and decay in four bodies, with two leptons in the final state, at the ATLAS Experiment with LHC Run data Marilea Reale INFN Lecce and Università del Salento (IT) E-mail:
More informationRencontres de Moriond - EW Interactions and Unified Theories La Thuile, March 14-21, 2015
Rencontres de Moriond - EW Interactions and Unified Theories La Thuile, March 14-21, 2015 Eli Ben-Haïm LPNHE-IN2P3- Université Pierre et Marie Curie (Paris) On behalf of the BELLE and BABAR collaborations
More informationProbing Dark Matter at the LHC
July 15, 2016 PPC2016 1 Probing Dark Matter at the LHC SM SM DM DM Search for production of DM particles from interacting SM particles Models tested at ATLAS assume DM WIMP Infer DM production through
More informationThe Compact Muon Solenoid Experiment. Conference Report. Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland
Available on CMS information server CMS CR -017/130 The Compact Muon Solenoid Experiment Conference Report Mailing address: CMS CERN, CH11 GENEVA 3, Switzerland 08 May 017 (v3, 11 May 017) Searches for
More informationSEARCHES FOR THE NEUTRAL HIGGS BOSONS OF THE MSSM
SEARCHES FOR THE NEUTRAL HIGGS BOSONS OF THE MSSM USING LEP DATA Elizabeth Locci SPP/DAPNIA Saclay Representing LEP Collaborations 1 Outline LEP performance Theoretical framework Search for neutral Higgs
More informationRecent Results on New Phenomena and Higgs Searches at DZERO
Recent Results on New Phenomena and Higgs Searches at DZERO Neeti Parashar Louisiana Tech University Ruston, Louisiana U.S.A. 1 Outline Motivation for DØ Run II Detector at Fermilab The Fermilab Tevatron
More informationSearches for New Phenomena with Lepton Final States at the Tevatron
Searches for New Phenomena with Lepton Final States at the Tevatron including charginos, neutralinos,, excited leptons and unexpected signatures Todd Adams Florida State University for the CDF and DØ Collaborations
More informationCMS. Saeid Paktinat. On behalf of the CMS Collaborations. (IPM, Tehran)
SUSY @ CMS (IPM, Tehran) On behalf of the CMS Collaborations outline SUSY Common Signatures Some Examples Conclusion 2 Why SUperSYmmetry(1) SM describes a lot of experimental results very precisely, but
More informationLHC signals for SUSY discovery and measurements
06 March 2009 ATL-PHYS-SLIDE-2009-038 LHC signals for SUSY discovery and measurements Vasiliki A. Mitsou (for the ATLAS and CMS Collaborations) IFIC Valencia PROMETEO I: LHC physics and cosmology 2-6 March,
More informationCMS Searches for New Physics
CMS Searches for New Physics Christian Autermann, for the CMS collaboration I. Phys. Inst. RWTH Aachen University, Germany QCD14 2 Overview Searches for New Physics at CMS Inclusive search for Supersymmetry
More informationB-Tagging in ATLAS: expected performance and and its calibration in data
B-Tagging in ATLAS: expected performance and and its calibration in data () on behalf of the ATLAS Collaboration Charged Higgs 2008 Conference (Uppsala: 15-19 September 2008) Charged Higgs Conference -
More informationRisultati dell esperimento ATLAS dopo il run 1 di LHC. C. Gemme (INFN Genova), F. Parodi (INFN/University Genova) Genova, 28 Maggio 2013
Risultati dell esperimento ATLAS dopo il run 1 di LHC C. Gemme (INFN Genova), F. Parodi (INFN/University Genova) Genova, 28 Maggio 2013 1 LHC physics Standard Model is a gauge theory based on the following
More informationPhysics with Tau Lepton Final States in ATLAS. Felix Friedrich on behalf of the ATLAS Collaboration
Physics with Tau Lepton Final States in ATLAS on behalf of the ATLAS Collaboration HEP 2012, Valparaiso (Chile), 06.01.2012 The Tau Lepton m τ = 1.8 GeV, heaviest lepton cτ = 87 μm, short lifetime hadronic
More informationNew Physics Searches at CMS
New Physics Searches at CMS! Higgs Portal Workshop: UMass, Amherst John Paul Chou Rutgers University! Thursday, May st, OUTLINE The space of New Physics searches is vast Nevertheless, I assume most everyone
More informationPreparations for SUSY searches at the LHC
Preparations for SUSY searches at the LHC Alex Tapper UK HEP Forum: LHC First Results and Outlook, September 20-21 20. Outline Search strategy Examples with 70 nb -1 Hadronic searches Leptonic searches
More informationSUSY searches with ATLAS
SUSY searches with ATLAS on behalf of the ATLAS Collaboration University of Victoria / TRIUMF, Canada June 29 2015 QFTHEP - Samara 1/23 Outline: From Mysterious to Science ATLAS and the LHC are zooming
More informationSearch for New Physics at the Tevatron
Search for New Physics at the Tevatron Simona Rolli Tufts University (on behalf of the CDF and D0 Collaborations) Les Recontres de Physique de La Vallee dʼaoste La Thuile, Feb 28-March 5 2011 Simona Rolli
More informationReminder : scenarios of light new physics
Reminder : scenarios of light new physics No new particle EW scale postulated Heavy neutral lepton AND well motivated! Neutrino masses Matter-antimatter asymmetry Dark matter Dark photon Muon g-2 anomaly
More informationMono-X, Associate Production, and Dijet searches at the LHC
Mono-X, Associate Production, and Dijet searches at the LHC Emily (Millie) McDonald, The University of Melbourne CAASTRO-CoEPP Joint Workshop Melbourne, Australia Jan. 30 - Feb. 1 2017 M. McDonald, University
More informationInclusive searches in ATLAS: How can we discover SUSY in 2009
Inclusive searches in ATLAS: How can we discover SUSY in 2009 George Redlinger Brookhaven National Laboratory (for the ATLAS Collaboration) University of Michigan LHC Dark Matter Workshop 6-10 Jan 2009
More informationRecent searches for new particles using 13 TeV data with ATLAS at the LHC
Recent searches for new particles using 13 TeV data with ATLAS at the LHC Vivek Jain (on behalf of the ATLAS Collaboration) State University of New York, Albany MIAMI2015 Dec 19, 2015 Beyond the Standard
More informationDiscovery potential for SUGRA/SUSY at CMS
Discovery potential for SUGRA/SUSY at CMS Stefano Villa, Université de Lausanne, April 14, 2003 (Based on talk given at SUGRA20, Boston, March 17-21, 2003) Many thanks to: Massimiliano Chiorboli, Filip
More informationOutline: Introduction Search for new Physics Model driven Signature based General searches. Search for new Physics at CDF
PE SU Outline: Introduction Search for new Physics Model driven Signature based General searches R Search for new Physics at CDF SUperSYmmetry Standard Model is theoretically incomplete SUSY: spin-based
More informationSearches using displaced leptons or jets
Searches using displaced leptons or jets J Antonelli with input from M Flowerdew, P Pais, R Rosten, H Russell I ve spoken with authors from ~all of the relevant searches, here are some general musings
More informationStrategy for early SUSY searches at ATLAS
SUSY07 The 15th International Conference on Supersymmetry and the Unification of Fundamental Interactions Karlsruhe, Germany Strategy for early SUSY searches at ATLAS July 26, 2007 Shimpei Yamamoto (ICEPP,
More informationFrontiers in Theoretical and Applied Physics 2017, Sharjah UAE
A Search for Beyond the Standard Model Physics Using Final State with Light and Boosted Muon Pairs at CMS Experiment Frontiers in Theoretical and Applied Physics 2017, Sharjah UAE Alfredo Castaneda* On
More informationPreparations for SUSY searches at the LHC
Preparations for SUSY searches at the LHC Alex Tapper UK HEP Forum: LHC First Results and Outlook, September 20-21 20. Outline Search strategy Examples with 70 nb Hadronic searches Leptonic searches (single
More informationDario Barberis. Physics with 2 nd Generation Pixel Detectors. Pixel 2002, Carmel (Ca), Sept Dario Barberis Genova University/INFN 1
Dario Barberis Physics with 2 nd Generation Pixel Detectors Pixel 2002, Carmel (Ca), Sept. 2002 Dario Barberis Genova University/INFN 1 Pixel Detector Evolution First generation (developed in early 90
More informationSearch for supersymmetry with disappearing tracks and high energy loss at the CMS detector
Search for supersymmetry with disappearing tracks and high energy loss at the CMS detector Teresa Lenz in Collaboration with Loic Quertenmont, Christian Sander, Peter Schleper, Lukas Vanelderen International
More informationBSM physics at the LHC. Akimasa Ishikawa (Kobe University)
BSM physics at the LHC Akimasa Ishikawa (Kobe University) 7 Jan. 2011 If SM Higgs exists Why BSM? To solve the hierarchy and naturalness problems O(1 TeV) Quadratic divergence of Higgs mass If SM Higgs
More informationLHC State of the Art and News
LHC State of the Art and News ATL-GEN-SLIDE-2010-139 16 June 2010 Arno Straessner TU Dresden on behalf of the ATLAS Collaboration FSP 101 ATLAS Vulcano Workshop 2010 Frontier Objects in Astrophysics and
More informationDPF2015. Search for Chargino and Neutralino using Two Jets in Vector-Boson-Fusion Topology at CMS
DPF5 Search for Chargino and Neutralino using Two Jets in Vector-Boson-Fusion Topology at CMS Andrés Flórez - Uniandes (COL) On behalf of the CMS Collaboration August 4, 5 Andrés Flórez (Uniandes - Colombia)
More informationb and c production in CMS
b and c production in CMS and ATLAS Francesco Fiori on behalf of CMS and ATLAS collaborations VII Meeting on B-physics (LAL) LHC luminosity evolution LHC startup in March 2010 9.67 pb -1 delivered lumi
More informationR-hadrons and Highly Ionising Particles: Searches and Prospects
R-hadrons and Highly Ionising Particles: Searches and Prospects David Milstead Stockholm University The need for new particles Why they could be heavy and stable How can we identify them in current and
More informationNon-Standard Higgs Decays
Non-Standard Higgs Decays David Kaplan Johns Hopkins University in collaboration with M McEvoy, K Rehermann, and M Schwartz Standard Higgs Decays Standard Higgs Decays 1 _ bb 140 GeV WW BR for SM Higgs
More informationSearches for low-mass Higgs and dark bosons at BaBar
Searches for low-mass Higgs and dark bosons at BaBar Benjamin Oberhof, INFN & Università di Pisa, on behalf of the BaBar Collaboration QCD 2012, 2-6 July 2012, Montpellier, France Outline The BaBar experiment
More informationStatus of Supersymmetric Models
Status of Supersymmetric Models Sudhir K Vempati CHEP, IISc Bangalore Institute of Physics, Bhubhaneswar Feb, 203 Outline Why Supersymmetry? Structure of MSSM Experimental Status New models of SUSY S/(S+B)
More informationInclusive SUSY Particle Searches
Inclusive SUSY Particle Searches with Jets and MET (CMS) On behalf of the CMS collaboration Kristin Goebel University of Hamburg SUSY 2014 Manchester, England Production of SUSY Particles at the LHC At
More informationPhysics at Hadron Colliders
Physics at Hadron Colliders Part 2 Standard Model Physics Test of Quantum Chromodynamics - Jet production - W/Z production - Production of Top quarks Precision measurements -W mass - Top-quark mass QCD
More informationHiggs Searches at CMS
Higgs Searches at CMS Ashok Kumar Department of Physics and Astrophysics University of Delhi 110007 Delhi, India 1 Introduction A search for the Higgs boson in the Standard Model (SM) and the Beyond Standard
More informationLFV in Tau Decays: Results and Prospects at the LHC. Tau th International Workshop on Tau Lepton Physics Beijing September 22th, 2016
LFV in Tau Decays: Results and Prospects at the LHC Kristof De Bruyn On behalf of the ATLAS, CMS & LHCb Collaborations Tau 216 14th International Workshop on Tau Lepton Physics Beijing September 22th,
More informationSearch for Lepton Number Violation at LHCb
Search for Lepton Number Violation at LHCb Update for Majorana Neutrino Search with Like-Sign Di-Muons: B π + μ μ decay P R E L I M I N A R Y, presented for the first time Bartłomiej Rachwał (IFJ PAN Kraków)
More information14th Lomonosov Conference on Elementary Particle Physics Moscow, 24 August 2009
M. Biglietti University of Rome Sapienza & INFN On behalf of the ATLAS Collaboration 1 14th Lomonosov Conference on Elementary Particle Physics Moscow, 24 August 2009 Theoretically favored candidates for
More informationHiggs Boson in Lepton Decay Modes at the CMS Experiment
Higgs Boson in Lepton Decay Modes at the Experiment Somnath Choudhury 1 for the collaboration 1 DESY - Hamburg, Germany DOI: http://dx.doi.org/1.34/desy-proc-14-4/1 The results on the standard model Higgs
More informationReview of ATLAS experimental results (II)
Review of ATLAS experimental results (II) Rachid Mazini Academia Sinica Taiwan CTEQ 2012 summer school Lima, Peru 30 July -8 August Rachid Mazini, Academia Sinica 1 Outline part II Higgs searches H, H
More informationDark matter searches and prospects at the ATLAS experiment
Dark matter searches and prospects at the ATLAS experiment Wendy Taylor (York University) for the ATLAS Collaboration TeVPA 2017 Columbus, Ohio, USA August 7-11, 2017 Dark Matter at ATLAS Use 13 TeV proton-proton
More informationSearching for Confining Hidden Valleys at the LHC(b)
Searching for Confining Hidden Valleys at the LHC(b) Yue Zhao University of Michigan Jan. 2018 with Aaron Pierce, Bibhushan Shakya,Yuhsin Tsai arxiv:1708.05389 [hep-ph] Current Status of Particle Physics
More informationSearches for Dark Matter in events with long-lived particles at the LHC
Marco Schioppa INFN and University of Calabria On behalf of ATLAS, CMS and LHCb Collabora8ons 22/07/17 Searches for Dark Matter in events with long-lived particles at the LHC 1 Dark Matter Dark MaDer,
More informationReconstruction and identification of hadronic τ decays with ATLAS
Reconstruction and Identification of Hadronic τ Decays with ATLAS Wolfgang F. Mader 1 1 Institut für Kern- und Teilchenphysik TU Dresden DPG Frühjahrstagung München, March 2009 Outline 1 Introduction 2
More informationTest of Lepton Flavour Universality with semitauonic decays of b-hadrons at LHCb
Test of Lepton Flavour Universality with semitauonic decays of b-hadrons at LHCb Anna Lupato on behalf of the LHCb collaboration University of Padova & INFN XIIIth International Conference on Heavy Quarks
More informationUpgrade of ATLAS and CMS for High Luminosity LHC: Detector performance and Physics potential
IL NUOVO CIMENTO 4 C (27) 8 DOI.393/ncc/i27-78-7 Colloquia: IFAE 26 Upgrade of ATLAS and CMS for High Luminosity LHC: Detector performance and Physics potential M. Testa LNF-INFN - Frascati (RM), Italy
More information