An update on scalar singlet dark matter
|
|
- Ruth Palmer
- 5 years ago
- Views:
Transcription
1 Pat Scott Department of Physics, McGill University With: Jim Cline, Kimmo Kainulainen & Christoph Weniger (arxiv: ) Slides available from patscott
2 What is the scalar singlet model? Ultra-minimal dark matter model (Silveira & Zee, PLB 1985) 1 new scalar particle S, SM gauge singlet 4 new (renormalizable) Lagrangian terms not forbidden by any symmetries: L S = µ2 S 2 S2 λ hs 2 S2 H H 1 2 µs µ S λ S 4 λ SS 4 (1) Impose Z 2 symmetry to make S stable S 3 and SH H terms disallowed
3 What is the scalar singlet model? Ultra-minimal dark matter model (Silveira & Zee, PLB 1985) 1 new scalar particle S, SM gauge singlet 4 new (renormalizable) Lagrangian terms not forbidden by any symmetries: L S = µ2 S 2 S2 λ hs 2 S2 H H 1 2 µs µ S λ S 4 λ SS 4 (1) Impose Z 2 symmetry to make S stable S 3 and SH H terms disallowed µ S µ S = S kinetic term,
4 What is the scalar singlet model? Ultra-minimal dark matter model (Silveira & Zee, PLB 1985) 1 new scalar particle S, SM gauge singlet 4 new (renormalizable) Lagrangian terms not forbidden by any symmetries: L S = µ2 S 2 S2 λ hs 2 S2 H H 1 2 µs µ S λ S 4 λ SS 4 (1) Impose Z 2 symmetry to make S stable S 3 and SH H terms disallowed µ S µ S = S kinetic term, λ S S 4 = S self-interaction
5 What is the scalar singlet model? Ultra-minimal dark matter model (Silveira & Zee, PLB 1985) 1 new scalar particle S, SM gauge singlet 4 new (renormalizable) Lagrangian terms not forbidden by any symmetries: L S = µ2 S 2 S2 λ hs 2 S2 H H 1 2 µs µ S λ S 4 λ SS 4 (1) Impose Z 2 symmetry to make S stable S 3 and SH H terms disallowed µ S µ S = S kinetic term, λ S S 4 = S self-interaction So long as λ S 1 (to remain perturbative), only µ 2 S S2 and λ hs S 2 H H matter for phenomenology
6 Consequences Background After H gets a VEV v 0 during electroweak symmetry-breaking, λ hs S 2 H H induces hss and hhss terms: L S 2 H 2 O hss + O hhss = λ hsv 0 2 hss λ hs hhss (2) 4 Introduces two new interaction vertices: S h S h S h S S gets mass contributions from bare term µ 2 S S2 and new SS term also induced by λ hs S 2 H H: m S = µ 2 S + λ hsv (3)
7 Advantages Background Question Why is the scalar singlet model attractive?
8 Advantages Background Question Why is the scalar singlet model attractive? Answers Occam s razor: super-simple, just one singlet scalar and a Z 2 symmetry 2 parameters only: λ hs, m S (or trade for µ S if you prefer) All phenomenology fully calculable, some extremely straightforwardly Predictive and very testable
9 Advantages Question Background Can it solve the hierarchy problem / give me 130 GeV lines / low-mass DM / make my lunch?
10 Advantages Question Background Can it solve the hierarchy problem / give me 130 GeV lines / low-mass DM / make my lunch? Answers Not really... any hierarchy solution would require fine-tuning and probably not hold at higher orders anyway 130 GeV line requires additional charged scalar Low-mass direct detection is conceivable, but parameters are ruled out (more later) Electroweak baryogenesis works, but not with S as all DM (more later)
11 Phenomenology Background Plenty of phenomenological studies over the years... Pre-LHC investigations of collider and dark matter detection prospects (e.g. McDonald hep-ph/ , Burgess et al. hep-ph/ , Patt & Wilczek hep-ph/ , Barger et al , ) As an explanation for DAMA/CoGeNT/CRESST (Andreas et al , , Tytgat ) Indirect detection prospects (Yaguna , Goudelis et al , Arina & Tytgat ) As a way to achieve baryogenesis (Profumo et al , Barger et al , Cline & Kainulainen ) Impacts of early LHC searches, XENON-100 (e.g. Mambrini , Djouadi et al )
12 Phenomenology Background Question Why the update?
13 Phenomenology Background Question Why the update? Answers Include 125 GeV Higgs Update to new LHC and XENON100 limits Add Fermi dwarf and CMB limits (best ID limits available) Treat models with sub-dominant relic densities consistently Higgs-nucleon coupling now much better understood from lattice calculations Use full thermal-average σv for relic density Make predictions for CTA, XENON1T, LHC14 TeV
14 Outline Background 1 Background 2
15 Dude, where s my Higgs? If S is light enough, the Higgs decay h SS is kinematically allowed: S h S with rate: Γ h SS = λ2 hs v 0 2 ( 1/2 32πmh 2 mh S) 2 4m2 (4) Higgs production rates (e.g. via gg fusion, vector boson fusion) can be compared to observed h decay rates (e.g. γγ, b b, etc) to test for missing decays Latest 95% CL combined LHC+Tevatron limit across all production and decay channels is BF SS < 19% (Belanger et al )
16 Constraints Background Resulting LHC+Tevatron limits: 0 log 10 λhs 1 2 Excluded: B(Γh SS) > 0.19 B(Γh SS) > m S (GeV) 300 fb 1 14 TeV LHC will manage BF limit of 5% (Peskin, arxiv: )
17 Outline Background 1 Background 2
18 Annihilation Channels SS f f : S h S f f
19 Annihilation Channels SS f f : SS V V : S h S S h S f f W +, Z W, Z
20 Annihilation Channels S f SS f f : S ḧ f S W +, Z SS V V : SS hh: S h S h h S h + S h h S + S S S W, Z h h
21 Annihilation cross-section Resulting σv 0 : 22 log 10 ( σv 0/cm 3 s 1) λ hs = 0.1 Higgs resonance: m S m h /2 = 62.5 GeV W, Z thresholds: 4-body final states from SS V V f f f f become significant just below m W,Z m S (GeV)
22 Annihilation cross-section Resulting σv 0 : log 10 ( σv 0/cm 3 s 1) Factorisation approximation Tree-level σv 0 λ hs = 0.1 better to factor non-hh channels into SSh fusion part full Higgs decay width Γ h to all SM particles: σv 0 = σv 0,hh + σv 0,others = σv 0,hh + λ 2 hs v 0 2Γ h [ m S (4m 2 S mh 2)2 + mh 2 ] (5) Γ2 h m S (GeV)
23 Relic density Background Resulting relic densities: log 10 λhs Ω S/Ω DM = 0.01 Ω S/Ω DM = 0.1 Ω S/Ω DM = log 10 (m S /GeV) When m S m h /2: OK to just get relic density estimate direct from σv 0 (a la Steigman et al ) When m S < h/2: must include thermal effects relic density in this region from explicit freeze out calculation (just assuming instantaneous thermalisation gives a conservative limit)
24 Relic density Background Together with Higgs invisible width, rules out all models with m S < 53 GeV = DAMA/CoGeNT/CRESST not seeing scalar singlet DM log 10 λhs ΩS/ΩDM = 0.01 ΩS/ΩDM = 0.1 ΩS/ΩDM = 1 Excluded by Γh SS B(Γh SS) > m S (GeV)
25 Indirect Detection Limits Question Return of the 4-body final state problem: how does one get σv 0,4f and γ/e spectra for 4-body channels?
26 Indirect Detection Limits Question Return of the 4-body final state problem: how does one get σv 0,4f and γ/e spectra for 4-body channels? Answer γ-ray yield per annihilation in WW and ZZ channels is very close to linear with mass (especially near m W,Z ), so... 1 use difference in factorised and tree-level annihilation cross-sections to estimate missing BFs 2 assign missing BF to SS V V channel for m S < m V 3 analytically extrapolate SS V V γ-ray spectra below m V to estimate SS V V f f f f spectra
27 Indirect Detection Limits 1 Fermi-LAT 3-year combined dwarf gamma-ray limits (Geringer-Sameth & Koushiappas , Fermi-LAT Collab ) Implemented from full set of CLs on gamma-ray flux particle physics parameter Φ PP ( ; kindly provided by Alex Geringer-Sameth) 2 CMB constraints on energy injection (WMAP7 / Planck polarisation) Implemented with tabulated likelihoods for all SM final states (Cline & PS ) Model-by-model Fermi + CMB combination of limits from all final states, according to actual branching fractions at each {m S, λ hs }.
28 Indirect Detection Limits Resulting ID limits: log 10 λhs σ current 90% CL future 1σ future ΩS/ΩDM = 1 Excluded by Γh SS log 10 λhs Excluded by Γh SS Future 1σ CL ΩS/ΩDM = 1 Future 90% CL (Fermi + CTA + Planck) Current 1σ CL (Fermi + WMAP7) m S (GeV) log 10 (m S/GeV) Current ID reveals slight tension at 1σ level in small parts of parameter space, but not much better than that Future searches (Fermi 10 yr, 20 dwarfs + Planck pol. + CTA 500 hr GC) will exclude more at 90% CL; yet more will be in 1σ tension.
29 Contributions to ID limits 0.5 log 10 λhs CTA Fermi (20 dwarfs, 10yr) Planck polarization ΩS/ΩDM = 1 Combined 90% CL sensitivity log 10 (m S/GeV) As expected, Fermi dominates at low masses, CTA at high masses but making realistic CTA projections is a bit like predicting the weather... (systematics? J factors? observing strategy? observatory configuration??)
30 Outline Background 1 Background 2
31 Higgs portal interactions give spin-independent nuclear scattering via t-channel Higgs exchange: q q h S Cross-section in terms of S-N reduced mass µ N is quite simple: S σ SI,N = λ2 hs f N 2µ2 N m2 N 4πmh 4. (6) m2 S Pion nuclear sigma uncertainty recently reduced (ChPT, lattice vals to 60 MeV matches experiment) strange quark content of nucleons now not as important Higgs-N effective coupling now f N ± 0.02 Following results just use standard Maxwellian halo.
32 Resulting direct limits: log 10 λhs XENON100 (2012) ΩS/ΩDM = 1 Γh SS log 10 λhs XENON100 (2012) ΩS/ΩDM = m S (GeV) log 10 (m S/GeV)
33 Resulting direct limits: log 10 λhs XENON100 (2012) XENON100 5 ΩS/ΩDM = 1 Γh SS log 10 λhs XENON100 (2012) XENON100 5 ΩS/ΩDM = m S (GeV) log 10 (m S/GeV) Future direct detection experiments (LUX, XENON-1T, DARWIN) will probe most of the parameter space yet a small window at m S 60 GeV will remain viable.
34 Resulting direct limits: log 10 λhs XENON100 (2012) XENON100 5 XENON Γh SS ΩS/ΩDM = 1 log 10 λhs XENON100 (2012) XENON100 5 XENON ΩS/ΩDM = m S (GeV) log 10 (m S/GeV) Future direct detection experiments (LUX, XENON-1T, DARWIN) will probe most of the parameter space yet a small window at m S 60 GeV will remain viable.
35 Resulting direct limits: log 10 λhs XENON100 (2012) XENON100 5 XENON XENON1T Γh SS ΩS/ΩDM = 1 log 10 λhs XENON100 (2012) XENON100 5 XENON ΩS/ΩDM = 1 XENON1T m S (GeV) log 10 (m S/GeV) Future direct detection experiments (LUX, XENON-1T, DARWIN) will probe most of the parameter space yet a small window at m S 60 GeV will remain viable.
36 Resulting direct limits: log 10 (σsi/cm 2 ) XENON100 (2012) XENON100 5 XENON1T XENON Γh SS ΩS/ΩDM = 1 log 10 (σsi/cm 2 ) XENON100 (2012) XENON100 5 XENON ΩS/ΩDM = 1 XENON1T m S (GeV) log 10 (m S/GeV) Future direct detection experiments (LUX, XENON-1T, DARWIN) will probe most of the parameter space yet a small window at m S 60 GeV will remain viable.
37 Electroweak baryogenesis with S log 10 λ hs XENON100 (2012) excluded v c /T c 3.6 v c /T c 1 v c /T c 4.2 v c /T c 1 v c /T c 4.2 v c /T c 1 v c /S c = 0.5 x 20 v c /S c = 3 v c /S c = 2 v c /S c = 1 XENON100 x 5 excluded log 10 m S (GeV) Eelectroweak baryongenesis (EWBG) is possible with singlet model, but not at the same time as Ω S /Ω DM = 1 Future DD will squeeze the EWBG parameter space severely.
38 Summary Background The scalar singlet model is a very simple and appealing DM candidate
39 Summary Background The scalar singlet model is a very simple and appealing DM candidate Signals expected in LHC, direct detection and indirect detection experiments
40 Summary Background The scalar singlet model is a very simple and appealing DM candidate Signals expected in LHC, direct detection and indirect detection experiments Constraints on parameter space from DD, ID and LHC are highly complimentary
41 Summary Background The scalar singlet model is a very simple and appealing DM candidate Signals expected in LHC, direct detection and indirect detection experiments Constraints on parameter space from DD, ID and LHC are highly complimentary Model is excluded as explanation for low-mass DM hints/anomalies
42 Summary Background The scalar singlet model is a very simple and appealing DM candidate Signals expected in LHC, direct detection and indirect detection experiments Constraints on parameter space from DD, ID and LHC are highly complimentary Model is excluded as explanation for low-mass DM hints/anomalies Upcoming experiments (DD especially) will access large parts of the remaining parameter space
43 Backup Slides
44 Branching Fractions 1.0 Branching Fraction SS SM b b W + W + (W + W ) hh ZZ + (ZZ) Ω S = Ω DM c c t t τ + τ log 10 (m S/GeV)
The inert doublet model in light of LHC and XENON
The inert doublet model in light of LHC and XENON Sara Rydbeck 24 July 212 Identification of Dark Matter, IDM 212, Chicago 1 The CERN Large Hadron Collider Only discovery so far. If no new strongly interacting
More informationConstraining minimal U(1) B L model from dark matter observations
Constraining minimal U(1) B L model from dark matter observations Tanushree Basak Physical Research Laboratory, India 10th PATRAS Workshop on Axions, WIMPs and WISPs CERN Geneva, Switzerland July 3, 2014
More informationImplications of the 125 GeV Higgs for the inert dark matter
Implications of the 125 GeV Higgs for the inert dark matter Bogumiła Świeżewska Faculty of Physics, University of Warsaw 26.03.2014 Recontres de Moriond QCD and High Energy Interactions, La Thuile, Italy
More informationConstraints on Darkon Scalar Dark Matter From Direct Experimental Searches
Constraints on arkon Scalar ark Matter From irect Experimental Searches Based on PhysRev.79.023521 (arxiv:0811.0658 [hep-ph]) Ho-Chin Tsai National Taiwan University in collaboration with Xiao-Gang He,
More informationConstraints on Light WIMPs from Isotropic Diffuse γ-ray Emission
Constraints on Light WIMPs from Isotropic Diffuse γ-ray Emission Michel H.G. Tytgat Université Libre de Bruxelles Belgium Rencontres de Moriond: EW Interactions and Unified Theories March 2011 There are
More informationElectroweak baryogenesis from a dark sector
Electroweak baryogenesis from a dark sector with K. Kainulainen and D. Tucker-Smith Jim Cline, McGill U. Moriond Electroweak, 24 Mar., 2017 J. Cline, McGill U. p. 1 Outline Has electroweak baryogenesis
More informationNatural explanation for 130 GeV photon line within vector boson dark matter model
Natural explanation for 130 GeV photon line within vector boson dark matter model Yasaman Farzan IPM, TEHRAN Plan of talk Direct and indirect dark matter searches 130 or 135 GeV line in FermiLAT data Challenges
More informationFermionic DM Higgs Portal! An EFT approach
Fermionic DM Higgs Portal An EFT approach Michael A. Fedderke University of Chicago Based on 1404.83 [hep-ph] (MF, Chen, Kolb, Wang) Unlocking the Higgs Portal ACFI, UMass, Amherst May 014 01 discovery
More informationChern-Simons portal Dark Matter
Chern-Simons portal Dark Matter III Saha Theory Workshop: Aspects of Early Universe Cosmology Mathias Pierre Laboratoire de Physique Théorique d Orsay In collaboration with G. Arcadi, G.Bhattacharyya,
More informationRelating the Baryon Asymmetry to WIMP Miracle Dark Matter
Brussels 20/4/12 Relating the Baryon Asymmetry to WIMP Miracle Dark Matter PRD 84 (2011) 103514 (arxiv:1108.4653) + PRD 83 (2011) 083509 (arxiv:1009.3227) John McDonald, LMS Consortium for Fundamental
More informationHiggs Property Measurement with ATLAS
Higgs Property Measurement with ATLAS Haijun Yang (on behalf of the ATLAS) Shanghai Jiao Tong University Hadron Collider Physics Symposium HCP 2012, Kyoto University, Japan November 12-16, 2012 Observation
More informationEffective Theory for Electroweak Doublet Dark Matter
Effective Theory for Electroweak Doublet Dark Matter University of Ioannina, Greece 3/9/2016 In collaboration with Athanasios Dedes and Vassilis Spanos ArXiv:1607.05040 [submitted to PhysRevD] Why dark
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 informationProbing the Majorana nature in radiative seesaw models at collider experiments
Probing the Majorana nature in radiative seesaw models at collider experiments Shinya KANEMURA (U. of Toyama) M. Aoki, SK and O. Seto, PRL 102, 051805 (2009). M. Aoki, SK and O. Seto, PRD80, 033007 (2009).
More informationPotential Discoveries at the Large Hadron Collider. Chris Quigg
Potential Discoveries at the Large Hadron Collider Chris Quigg Fermilab quigg@fnal.gov XXIII Taiwan Spring School Tainan 31 March - 3 April 2010 Electroweak theory successes Theoretical Physics Department,
More informationChiral Dark Sector. Keisuke Harigaya (UC Berkeley, LBNL) KH, Yasunori Nomura Raymond Co, KH, Yasunori Nomura 1610.
04/21/2017 Lattice for BSM Chiral Dark Sector Keisuke Harigaya (UC Berkeley, LBNL) KH, Yasunori Nomura 1603.03430 Raymond Co, KH, Yasunori Nomura 1610.03848 Plan of Talk Introduction Set up of our model
More informationGALACTIC CENTER GEV GAMMA- RAY EXCESS FROM DARK MATTER WITH GAUGED LEPTON NUMBERS. Jongkuk Kim (SKKU) Based on Physics Letters B.
GALACTIC CENTER GEV GAMMA- RAY EXCESS FROM DARK MATTER WITH GAUGED LEPTON NUMBERS Jongkuk Kim (SKKU) Based on Physics Letters B. 752 (2016) 59-65 In collaboration with Jong Chul Park, Seong Chan Park The
More informationA cancellation mechanism for dark matter-nucleon interaction: non-abelian case
A cancellation mechanism for dark matter-nucleon interaction: non-abelian case University of Ioannina 31/3/2018 In collaboration with: Christian Gross, Alexandros Karam, Oleg Lebedev, Kyriakos Tamvakis
More informationarxiv: v1 [hep-ph] 19 Jan 2015
Universe in the light of LHC M. Krawczyk, M. Matej, D. Sokołowska, B. Świeżewska Faculty of Physics, University of Warsaw Pasteura 5, 02-093 Warsaw, Poland December 30, 2014 arxiv:1501.04529v1 [hep-ph]
More informationA realistic model for DM interactions in the neutrino portal paradigm
A realistic model for DM interactions in the neutrino portal paradigm José I Illana + Vannia González Macías, José Wudka (UC Riverside) 1 Model 2 Constraints 3 Conclusions JHEP 05 (2016) 171 [160105051]
More informationWhere is SUSY? Institut für Experimentelle Kernphysik
Where is SUSY? Institut ür Experimentelle Kernphysik KIT Universität des Landes Baden-Württemberg und nationales Forschungszentrum in der Helmholtz-Gemeinschat www.kit.edu I supersymmetric particles exist,
More informationTHE STATUS OF NEUTRALINO DARK MATTER
THE STATUS OF NEUTRALINO DARK MATTER BIBHUSHAN SHAKYA CORNELL UNIVERSITY CETUP 2013 Workshop June 25, 2013 Based on hep-ph 1208.0833, 1107.5048 with Maxim Perelstein, hep-ph 1209.2427 The favorite / most
More informationCosmic Positron Signature from Dark Matter in the Littlest Higgs Model with T-parity
Cosmic Positron Signature from Dark Matter in the Littlest Higgs Model with T-parity Masaki Asano The Graduate University for Advanced Studies Collaborated with Shigeki Matsumoto Nobuchika Okada Yasuhiro
More informationDark matter and LHC: complementarities and limitations
Dark matter and LHC: complementarities and limitations,1,2, F. Mahmoudi 1,2,3, A. Arbey 1,2,3, M. Boudaud 4 1 Univ Lyon, Univ Lyon 1, ENS de Lyon, CNRS, Centre de Recherche Astrophysique de Lyon UMR5574,
More informationPhenomenology of low-energy flavour models: rare processes and dark matter
IPMU February 2 nd 2016 Phenomenology of low-energy flavour models: rare processes and dark matter Lorenzo Calibbi ITP CAS, Beijing Introduction Why are we interested in Flavour Physics? SM flavour puzzle
More informationBaryogenesis and dark matter in the nmssm
Baryogenesis and dark matter in the nmssm C.Balázs, M.Carena, A. Freitas, C.Wagner Phenomenology of the nmssm from colliders to cosmology arxiv:0705431 C. Balázs, Monash U Melbourne BG & DM in the nmssm
More informationMaria Krawczyk U. of Warsaw
Higgs as a probe of a new physics Toyama, 11.2. 2015 Maria Krawczyk U. of Warsaw In coll. with I. Ginzburg, K. Kanishev, D.Sokolowska, B. Świeżewska, G. Gil, P.Chankowski, M. Matej, N. Darvishi, A. Ilnicka,
More informationWino dark matter breaks the siege
Wino dark matter breaks the siege Shigeki Matsumoto (Kavli IPMU) In collaboration with M. Ibe, K. Ichikawa, and T. Morishita 1. Wino dark matter (Motivation & Present limits) 2. Wino dark matter is really
More informationThe Inert Doublet Matter
55 Zakopane, June. 2015 The Inert Doublet Matter Maria Krawczyk University of Warsaw In coll. with I. Ginzburg, K. Kanishev, D.Sokolowska, B. Świeżewska, G. Gil, P.Chankowski, M. Matej, N. Darvishi, A.
More informationIntroducing SModelS - with an application to light neutralino DM
Hi! Introducing SModelS - with an application to light neutralino DM Suchita Kulkarni (LPSC, Grenoble) based on: 1) work in progress with W. Waltenberger, U. Laa, A. Lessa, D. Proschofsky, S. Kraml 2)
More informationDark Forces in the Sky: Signals from Z and the Dark Higgs
Dark Forces in the Sky: Signals from Z and the Dark Higgs Nicole Bell The University of Melbourne with Yi Cai & Rebecca Leane arxiv:1605.09382 (JCAP 2016), arxiv:1610.03063 (JCAP 2017) TEVPA 2017 COLUMBUS
More informationExotic scalars. Stefania Gori. Second MCTP Spring Symposium on Higgs Boson Physics. The University of Chicago & Argonne National Laboratory
Exotic Exotic scalars scalars and and the the Higgs Higgs to to gamma gamma -- gamma gamma rate rate Stefania Gori The University of Chicago & Argonne National Laboratory Second MCTP Spring Symposium on
More informationHiggs Signals and Implications for MSSM
Higgs Signals and Implications for MSSM Shaaban Khalil Center for Theoretical Physics Zewail City of Science and Technology SM Higgs at the LHC In the SM there is a single neutral Higgs boson, a weak isospin
More informationFERMION PORTAL DARK MATTER
FERMION PORTAL DARK MATTER Joshua Berger SLAC UC Davis Theory Seminar! w/ Yang Bai: 1308.0612, 1402.6696 March 10, 2014 1 A HOLE IN THE SM Van Albada et. al. Chandra + Hubble What else can we learn about
More informationBSM Higgs Searches at ATLAS
BSM Higgs Searches at ATLAS Martin zur Nedden Humboldt-Universität zu Berlin for the ATLAS Collaboration SUSY Conference 2014 Manchester July 20 th July 25 th, 2014 Introduction Discovery of a scalar Boson
More informationThe Flavour Portal to Dark Matter
Dark Side of the Universe 2015 Kyoto University The Flavour Portal to Dark Matter Lorenzo Calibbi ITP CAS, Beijing December 18th 2015 Introduction Why are we interested in Flavour Physics? SM flavour puzzle
More informationDark Matter searches in ATLAS: Run 1 results and Run 2 prospects
Dark Matter searches in ATLAS: Run 1 results and Run 2 prospects Lashkar Kashif University of Wisconsin Summer School and Workshop on the Standard Model and Beyond Corfu, Greece, September 8, 2015 Outline
More informationThe production of additional bosons and the impact on the Large Hadron Collider
The production of additional bosons and the impact on the Large Hadron Collider presented by Alan S. Cornell for the HEP group, University of the Witwatersrand With N.Chakrabarty, T.Mandal and B.Mukhopadhyaya
More informationNon-Thermal Dark Matter from Moduli Decay. Bhaskar Dutta. Texas A&M University
Non-Thermal Dark Matter rom Moduli Decay Bhaskar Dutta Texas A&M University Allahverdi, Dutta, Sinha, PRD87 (2013) 075024, PRDD86 (2012) 095016, PRD83 (2011) 083502, PRD82 (2010) 035004 Allahverdi, Dutta,
More informationarxiv: v2 [hep-ph] 25 May 2018
Singlet fermionic dark matter with Veltman conditions Yeong Gyun Kim Department of Science Education, Gwangju National University of Education, Gwangju 6104, Korea Kang Young Lee Department of Physics
More informationTentative observation of a gamma-ray line at the Fermi Large Area Telescope
Tentative observation of a gamma-ray line at the Fermi Large Area Telescope arxiv:1203.1312 with T. Bringmann, X. Huang, A. Ibarra, S. Vogl (accepted for JCAP), arxiv:1204.2797 (accepted for JCAP) Christoph
More informationCollider Searches for Dark Matter
Collider Searches for Dark Matter AMELIA BRENNAN COEPP-CAASTRO WORKSHOP 1 ST MARCH 2013 Introduction Enough introductions to dark matter (see yesterday) Even though we don t know if DM interacts with SM,
More informationProbing the early Universe and inflation with indirect detection
Probing the early Universe and inflation with indirect detection Pat Scott Department of Physics, McGill University With: Yashar Akrami, Torsten Bringmann, Jenni Adams, Richard Easther Based on PS, Adams,
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 informationLecture 23. November 16, Developing the SM s electroweak theory. Fermion mass generation using a Higgs weak doublet
Lecture 23 November 16, 2017 Developing the SM s electroweak theory Research News: Higgs boson properties and use as a dark matter probe Fermion mass generation using a Higgs weak doublet Summary of the
More informationSupersymmetry at the ILC
Supersymmetry at the ILC Abdelhak DJOUADI (LPT Paris Sud). Introduction 2. High precision measurements 3. Determination of the SUSY lagrangian 4. Connection to cosmology 5. Conclusion For more details,
More informationCan the Hbb coupling be equal in magnitude to its Standard Model value but opposite in sign? Howard E. Haber July 22, 2014
Can the Hbb coupling be equal in magnitude to its Standard Model value but opposite in sign? Howard E. Haber July 22, 2014 Outline I. Higgs physics afer discovery Ø What is the current data telling us?
More informationDmitri Sidorov Oklahoma State University On behalf of the ATLAS Collaboration DIS2014, 04/28/2014
Dmitri Sidorov Oklahoma State University On behalf of the ATLAS Collaboration DIS4, 4/8/4 Introduc)on We discovered a Standard Model (SM) like Higgs boson at mh=5 GeV. This is not the end of the story.
More informationSearching for spectral features in the g-ray sky. Alejandro Ibarra Technische Universität München
Searching for spectral features in the g-ray sky Alejandro Ibarra Technische Universität München Oslo 5 November 2014 Outline Motivation Indirect dark matter searches with gamma-rays. Overcoming backgrounds
More informationDark matter and collider signatures from extra dimensions
KAIST TF, A. Menon, Z. Sullivan, PRD 86 (2012) 093006 L. Edelhäuser, TF, M. Krämer, JHEP 1308 (2013) 091 TF, KC Kong, SC Park, JHEP 1305 (2013) 111, arxiv:1309.xxxx COSMO 2013, Cambridge Outline Universal
More informationThe Strong Interaction and LHC phenomenology
The Strong Interaction and LHC phenomenology Juan Rojo STFC Rutherford Fellow University of Oxford Theoretical Physics Graduate School course Introduction and motivation: QCD and modern high-energy physics
More informationVrije Universiteit Brussel. Singlet-Doublet Model Calibbi, Lorenzo; Mariotti, Alberto; Tziveloglou, Pantelis
Vrije Universiteit Brussel Singlet-Doublet Model Calibbi, Lorenzo; Mariotti, Alberto; Tziveloglou, Pantelis Published in: Journal of High Energy Physics DOI: 10.1007/JHEP10(2015)116 Publication date: 2015
More informationSho IWAMOTO. 7 Nov HEP phenomenology joint Cavendish DAMTP U. Cambridge
MSSM scenario Sho IWAMOTO 7 Nov. 2016 HEP phenomenology joint Cavendish DAMTP seminar @ U. Cambridge Based on [1608.00283] in collaboration with M. Abdullah, J. L. Feng, and B. Lillard (UC Irvine) The
More informationSearching for the Higgs at the LHC
Searching for the Higgs at the LHC Philip Lawson Boston University - PY 898 - Special Topics in LHC Physics 3/16/2009 1 Outline Theory & Background of Higgs Mechanism Production Modes Decay Modes - Discovery
More informationM. Lattanzi. 12 th Marcel Grossmann Meeting Paris, 17 July 2009
M. Lattanzi ICRA and Dip. di Fisica - Università di Roma La Sapienza In collaboration with L. Pieri (IAP, Paris) and J. Silk (Oxford) Based on ML, Silk, PRD 79, 083523 (2009) and Pieri, ML, Silk, MNRAS
More informationthe CTA Consortium represented by Aldo Morselli
The Dark Matter Programme of the Cherenkov Telescope Array the CTA Consortium represented by Aldo Morselli INFN Roma Tor Vergata 1 CTA PROJECT Next generation ground based Gamma-ray observatory Open observatory
More informationSinglet Assisted Electroweak Phase Transitions and Precision Higgs Studies
Singlet Assisted Electroweak Phase Transitions and Precision Higgs Studies Peter Winslow Based on: PRD 91, 035018 (2015) (arxiv:1407.5342) S. Profumo, M. Ramsey-Musolf, C. Wainwright, P. Winslow arxiv:1510.xxxx
More informationNeutrino Masses and Dark Matter in Gauge Theories for Baryon and Lepton Numbers
Neutrino Masses and Dark Matter in Gauge Theories for Baryon and Lepton Numbers DPG Frühjahrstagung 014 in Mainz Based on Phys. Rev. Lett. 110, 31801 (013), Phys. Rev. D 88, 051701(R) (013), arxiv:1309.3970
More informationHow high could SUSY go?
How high could SUSY go? Luc Darmé LPTHE (Paris), UPMC November 24, 2015 Based on works realised in collaboration with K. Benakli, M. Goodsell and P. Slavich (1312.5220, 1508.02534 and 1511.02044) Introduction
More informationSearches for New Physics in quarkonium decays at BaBar/Belle
1 Searches for New Physics in quarkonium decays at BaBar/Belle Lucas Winstrom University of California Santa Cruz for the BaBar Collaboration Presented at QWG08 in Nara, Japan December 5, 2008 2 Outline
More informationInert Doublet Model and DAMA:
Inert Doublet Model and DAMA: elastic and/or inelastic Dark Matter candidates C.A., FS. Ling, M.H.G. Tytgat arxiv:0907.0430 Chiara Arina TAUP 2009 - July 1/5 Service de Physique Theorique 1 Universite
More informationCristiano Alpigiani Shanghai Jiao Tong University Shanghai, 18 May 2017
Searches for dark matter in ATLAS Shanghai Jiao Tong University Shanghai, 18 May 2017 Dark Matter and Particle Physics Astrophysical evidence for the existence of dark matter! First observed by Fritz Zwicky
More informationSho IWAMOTO. 15 Sep Osaka University. Based on [ ] in collaboration with M. Abdullah, J. L. Feng, and B. Lillard (UC Irvine)
MSSM scenario Sho IWAMOTO 15 Sep. 2016 Seminar @ Osaka University Based on [1608.00283] in collaboration with M. Abdullah, J. L. Feng, and B. Lillard (UC Irvine) The Standard Model of Particle Physics
More informationKinematics in Higgs Fits
Kinematics in Higgs Fits Universität Heidelberg LHCHXS Meeting, November 2015 Higgs Couplings Standard Model operators [SFitter: Gonzalez-Fraile, Klute, TP, Rauch, Zerwas] Lagrangian [in terms of non-linear
More informationNew Physics at the TeV Scale and Beyond Summary
New Physics at the TeV Scale and Beyond Summary Machine and Detector Issues 1. Correlated Beamstrahlung David Strom New Theoretical Ideas: 1. Signatures for Brane Kinetic Terms at the LC Tom Rizzo 2. Implementing
More informationThe search for the (SM) Higgs Boson
Tevatron and LHC WS16/17 TUM S.Bethke, F. Simon V9: Search for the Higgs Boson (1) 1 Lecture 9: The search for the (SM) Higgs Boson theoretical basics Higgs production and decay Higgs search in e + e annihilation
More informationWho is afraid of quadratic divergences? (Hierarchy problem) & Why is the Higgs mass 125 GeV? (Stability of Higgs potential)
Who is afraid of quadratic divergences? (Hierarchy problem) & Why is the Higgs mass 125 GeV? (Stability of Higgs potential) Satoshi Iso (KEK, Sokendai) Based on collaborations with H.Aoki (Saga) arxiv:1201.0857
More informationpmssm Dark Matter Searches On Ice! Randy Cotta (Stanford/SLAC) In collaboration with: K.T.K. Howe (Stanford) J.L. Hewett (SLAC) T.G.
pmssm Dark Matter Searches On Ice! χ ~ 0 1 Randy Cotta (Stanford/SLAC) In collaboration with: K.T.K. Howe (Stanford) J.L. Hewett (SLAC) T.G. Rizzo (SLAC) Based on: 1104.XXXX (next week or bust.) In case
More informationNew Physics from Vector-Like Technicolor: Roman Pasechnik Lund University, THEP group
New Physics from Vector-Like Technicolor: Roman Pasechnik Lund University, THEP group CP3 Origins, September 16 th, 2013 At this seminar I will touch upon... σ 2 Issues of the Standard Model Dramatically
More informationDARK MATTER. Martti Raidal NICPB & University of Helsinki Tvärminne summer school 1
DARK MATTER Martti Raidal NICPB & University of Helsinki 28.05.2010 Tvärminne summer school 1 Energy budget of the Universe 73,4% - Dark Energy WMAP fits to the ΛCDM model Distant supernova 23% - Dark
More informationInert Doublet Model:
Inert Doublet Model: Dark Matter Implication and Collider Phenomenology Shufang Su U. of Arizona S. Su In collaboration with E. Dolle, X. Miao and B. Thomas Inert Doublet Model Introduce another Higgs
More informationPhysics at e + e - Linear Colliders. 4. Supersymmetric particles. M. E. Peskin March, 2002
Physics at e + e - Linear Colliders 4. Supersymmetric particles M. E. Peskin March, 2002 In this final lecture, I would like to discuss supersymmetry at the LC. Supersymmetry is not a part of the Standard
More informationHiggs results and prospects at ATLAS
IL NUOVO CIMENTO 38 C (2015) 1 DOI 10.1393/ncc/i2015-15001-x Colloquia: IFAE 2014 Higgs results and prospects at ATLAS S. Rosati INFN, Sezione di Roma - Roma, Italy received 7 January 2015 Summary. Highlights
More informationTwin Higgs Theories. Z. Chacko, University of Arizona. H.S Goh & R. Harnik; Y. Nomura, M. Papucci & G. Perez
Twin Higgs Theories Z. Chacko, University of Arizona H.S Goh & R. Harnik; Y. Nomura, M. Papucci & G. Perez Precision electroweak data are in excellent agreement with the Standard Model with a Higgs mass
More informationSummary Introduction Description of the Resonances s-channel Processes Fusion Processes Drell-Yan Processes Conclusions
Prospective Study on Muon Colliders Strong Electroweak Symmetry Breaking at Muon Colliders Roberto Casalbuoni Firenze and Geneva Universities with A. Deandrea, S. De Curtis, D. Dominici, R. Gatto and J.F.
More informationATLAS Run II Exotics Results. V.Maleev (Petersburg Nucleare Physics Institute) on behalf of ATLAS collaboration
ATLAS Run II Exotics Results V.Maleev (Petersburg Nucleare Physics Institute) on behalf of ATLAS collaboration What is the dark matter? Is the Higgs boson solely responsible for electroweak symmetry breaking
More informationGamma-rays constraint on Higgs Production from Dark Matter Annihilation
Gamma-rays constraint on Higgs Production from Dark Matter Annihilation Takashi Toma IPPP Durham University Based on arxiv:1211.2639 in collaboration with N. Bernal, C. Boehm, S. Palomales-Ruiz and J.
More informationTop quark mass at ATLAS and CMS
Top quark mass at ATLAS and CMS (Introduction) Direct measurements Template/Ideogram based Indirect measurements Unfolded shapes/cross sections Conclusions & Outlook Andreas Jung for the ATLAS & CMS collaboration
More informationTop quark physics and Electroweak measurements at the ILC. Roman Pöschl
Top quark physics and Electroweak measurements at the ILC Roman Pöschl Journees Collisionneur Lineaire - Lyon Mai 2013 The solid pillars of the LC phyics program Top quark W Boson Higgs Boson Discovered
More informationarxiv: v1 [hep-ex] 5 Sep 2014
Proceedings of the Second Annual LHCP CMS CR-2014/199 September 8, 2014 Future prospects of Higgs Physics at CMS arxiv:1409.1711v1 [hep-ex] 5 Sep 2014 Miguel Vidal On behalf of the CMS Experiment, Centre
More informationBeyond Simplified Models
Pseudoscalar Portal to Dark Matter: Beyond Simplified Models Jose Miguel No King's College London J.M.N. PRD 93 (RC) 031701 (1509.01110) D. Goncalves, P. Machado, J.M.N. 1611.04593 M. Fairbairn, J.M.N.,
More informationDark Matter from Non-Standard Cosmology
Dark Matter from Non-Standard Cosmology Bhaskar Dutta Texas A&M University Miami 2016 December 16, 2016 1 Some Outstanding Issues Questions 1. Dark Matter content ( is 27%) 2. Electroweak Scale 3. Baryon
More informationSneutrino dark matter and its LHC phenomenology
Sneutrino dark matter and its LHC phenomenology Chiara Arina Physics challenges in the face of LHC-14 workshop @ IFT 1 September 23 th 2014 Bolshoi simulation, NASA Sneutrino dark matter in the MSSM? Left-handed
More informationCold Dark Matter beyond the MSSM
Cold Dark Matter beyond the MM Beyond the MM inglet Extended MM inglet Extended tandard Model References V. Barger, P. Langacker, M. McCaskey, M. J. Ramsey-Musolf and G. haughnessy, LHC Phenomenology of
More informationGauged U(1) clockwork
Gauged U(1) clockwork Hyun Min Lee Chung-Ang University, Korea Based on arxiv: 1708.03564 Workshop on the Standard Model and Beyond Corfu, Greece, Sept 2-10, 2017. Outline Introduction & motivation Gauged
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 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 informationSignatures of clumpy dark matter in the global 21 cm background signal D.T. Cumberland, M. Lattanzi, and J.Silk arxiv:
Signatures of clumpy dark matter in the global 2 cm background signal D.T. Cumberland, M. Lattanzi, and J.Silk arxiv:0808.088 Daniel Grin Ay. Journal Club /23/2009 /8 Signatures of clumpy dark matter in
More informationElectroweak Baryogenesis after LHC8
Electroweak Baryogenesis after LHC8 Gláuber Carvalho Dorsch with S. Huber and J. M. No University of Sussex arxiv:135.661 JHEP 131, 29(213) What NExT? Southampton November 27, 213 G. C. Dorsch EWBG after
More informationInflationary models and scale invariance. Dmitry Gorbunov
Inflationary models and scale invariance Dmitry Gorbunov Institute for Nuclear Research, Moscow, Russia Hot topics in Modern Cosmology Spontaneous Workshop VII IESC, Cargese, France, 07.05.2013 Dmitry
More informationLHC Signals of (MSSM) Electroweak Baryogenesis
LHC Signals of (MSSM) Electroweak Baryogenesis David Morrissey Department of Physics, University of Michigan Michigan Center for Theoretical Physics (MCTP) With: Csaba Balázs, Marcela Carena, Arjun Menon,
More informationPhysics Beyond the Standard Model
Physics Beyond the Standard Model R. Rosenfeld ICTP South American Institute for Fundamental Research & Instituto de Física Teórica Universidade Estadual Paulista, São Paulo, Brazil Abstract In these three
More informationHiggs Physics. Yasuhiro Okada (KEK) November 26, 2004, at KEK
Higgs Physics Yasuhiro Okada (KEK) November 26, 2004, at KEK 1 Higgs mechanism One of two principles of the Standard Model. Gauge invariance and Higgs mechanism Origin of the weak scale. Why is the weak
More informationStatus Report on Electroweak Baryogenesis
Outline Status Report on Electroweak Baryogenesis Thomas Konstandin KTH Stockholm hep-ph/0410135, hep-ph/0505103, hep-ph/0606298 Outline Outline 1 Introduction Electroweak Baryogenesis Approaches to Transport
More informationDynamics of a two-step Electroweak Phase Transition
Dynamics of a two-step Electroweak Phase Transition May 2, 2014 ACFI Higgs Portal Workshop in Collaboration with Pavel Fileviez Pérez Michael J. Ramsey-Musolf Kai Wang hiren.patel@mpi-hd.mpg.de Electroweak
More informationHow to find a Higgs boson. Jonathan Hays QMUL 12 th October 2012
How to find a Higgs boson Jonathan Hays QMUL 12 th October 2012 Outline Introducing the scalar boson Experimental overview Where and how to search Higgs properties Prospects and summary 12/10/2012 2 The
More informationNatural Electroweak Symmetry Breaking in NMSSM and Higgs at 100 GeV
Natural Electroweak Symmetry Breaking in NMSSM and Higgs at 100 GeV Radovan Dermíšek Institute for Advanced Study, Princeton R.D. and J. F. Gunion, hep-ph/0502105 R.D. and J. F. Gunion, hep-ph/0510322
More informationStable or Unstable Light Dark Matter arxiv: v1 [hep-ph] 27 Jul 2015
UCRHEP-T555 July 015 Stable or Unstable Light Dark Matter arxiv:1507.07609v1 [hep-ph] 7 Jul 015 Ernest Ma 1, M. V. N. Murthy, and G. Rajasekaran,3 1 Department of Physics and Astronomy, University of California,
More informationSearch for non-thermal dark matter and new scalar boson at the LHC
Search for non-thermal dark matter and new scalar boson at the LHC 2015/10/21 KPS meeting/gyeongju Namgyun Jeong*, YoungDo Oh and DongHee Kim Department of physics, Kyungpook National University KPS Oct.
More informationEWSB and CDM from Scale Invariant Extensions of the SM with Strongly Interacting Hidden Sector
EWSB and CDM from Scale Invariant Extensions of the SM with Strongly Interacting Hidden Sector Pyungwon Ko (KIAS) PASCOS 2013, Taipei, Taiwan (Nov 20 - Nov 26, 2013) (1) EWSB and CDM from strongly interacting
More information