Measurement of isolated-photon jet correlations with ALICE
|
|
|
- Evangeline Jackson
- 5 years ago
- Views:
Transcription
1 Measurement of isolated-photon jet correlations with ALICE Denise Moreira de Godoy Laboratoire de Physique Subatomique et des Technologies Associèes (SUBATECH), Nantes, France September 17, 2014 Rencontres QGP-France 2014
2 Outline Physics motivation ALICE detector Analysis strategy Preliminary results Run 2 Outlook Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
3 Physics motivation: photon-jet process { quark fragments into a jet quark is recoiled by photon photon does not interact strongly with the medium (p γ T pparton T ) Phys.Rev.Lett. 96 (2006) In pp collisions: Reference for correlations in Pb-Pb and p-pb collisions Test of perturbative QCD In p-pb collisions: Study possible modifications of jet structure due to the cold nuclear matter In Pb-Pb collisions: Sensitivity to the parton in-medium energy loss Study modifications of jet structure due to final state effects Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
4 Angular correlation Observables I Momentum conservation implies that isolated photons and jets from photon-jet process are correlated in azimuth: ϕ = ϕ γ ϕ jet Transverse momentum ratio The transverse momentum ratio x can be used to study the in-medium parton energy loss: x = pjet T p γ T CMS collaboration, PLB 718 (2013) Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
5 Observables II Jet fragmentation function The distributions (and the properties) of jet constituents can be investigated with the jet fragmentation functions: M. Cacciari et al., arxiv: v1 pp collisions at s = 2.76 TeV, p jet T >100 GeV/c, y < 3 F z (z, p γ T ) = 1 dn part N jet dz, where z = ppart T p γ T F ξ (ξ, p γ T ) = 1 ( ) dn part 1, where ξ = ln N jet dξ z Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
6 Outline Physics motivation ALICE Analysis Prelyminary Results Run 2 Outlook ALICE detector VZERO (VZEROA: 2.8 < η < 5.1; VZEROC: -3.7 < η < -1.7): - multiplicity, trigger EMCal ITS ( η < 0.9) TPC - vertexing, tracking, charged jet reconstruction ITS TPC ( η < 0.9) - tracking, charged jet reconstruction EMCal ( η < 0.7) - photon ID, trigger VZERO Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 s = 7 TeV (2011) L1 EMCal triggered events Number of events: Data set: pp collisions at September 17, / 18
7 Analysis strategy 1. Reconstruct isolated photons with EMCal 2. Reconstruct charged jets with ITS+TPC 3. Correlate isolated photons to all jets in the event 4. Apply a cut in azimuth to select isolated-photon and jet pairs 5. Obtain observables Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
8 Isolated-photon reconstruction Photons are selected with shower shape cut Since prompt photons from γ-jet process are produced around a little hadronic activity, isolation technique can be used to reject photons from fragmentation. The isolation is performed in a cone with radius R: (ηγ ) 2 ( ) 2 R = η j + ϕγ ϕ j where i is the i-th particle The following criteria can be used to select prompt photons: threshold on p T sum of all particles in the cone threshold on p T of each particle in the cone Ongoing isolated-photon analyzes: isolated photons in p-pb collisions at s NN = 5.02 TeV (Lucile Ronflette) and in pp collisions at s = 7 TeV (Alexis Mas / Marie Germain); isolated-photon hadron correlations in pp collisions at s = 7 TeV (Catherine Silvestre / Gustavo Conesa) Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
9 Jet reconstruction: k T and anti-k T algorithms The procedure of the infrared-safe and colliniar-safe k T and anti-k T algorithms from the FastJet package (M. Cacciari et al., PLB 641 (2006) 57) consists of calculating the distance of the particle (or protojet) i with respect to a particle j (d i j ) and with respect to the beam (d ib ): ( ) R 2 d i j = min p 2k T i, p 2k i j T j R 2, where R 2 i j = ( ) 2 ( ) 2 η i η j + ϕi ϕ j d ib = p 2k T i where R is the resolution parameter, k = 1 in the k T algorithm, and k = 1 in the anti-k T algorithm. If d i j < d ib : i and j are grouped into a protojet and the procedure is restarted If d i j > d ib : i is considered as a jet and excluded from the event anti-k T algorithm is used for signal jets k T algorithm is used for background jets Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
10 Jet background Background sources I Source: in presence of Underlying Events (UE), the transverse momentum of jets is increased Correction: the transverse momentum of jets can be corrected as: p corrected T jet = p reconstructed T jet ρa jet, where ρ = ( ptjet A jet ) Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
11 Isolated-photon background Background sources II Source: remaining background isolated photons Correction: background contribution can be statistically subtracted: N cand. iso γ = pn meas. iso γ backg. iso γ (1 p)n where p is the purity of the measured isolated photon Isolated-photon and jet association Source: fake association between isolated-photon candidates and jets Correction: contribution should be studied at the particle level via MC simulations Fragmentation function background Source: the fragmentation function determination is affected by Underlying Events Correction: the contribution can be evaluated with association of isolated photons and a cone of particles in perpendicular direction (useful in pp collisions). Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
12 Selection of isolated photons and jets Jet: anti-k T algorithm, R jet = 0.4, η < 0.5, p jet T > 15 GeV/c, ptrack T > 150 MeV/c part. in cone Isolated photon: R jet = 0.4, η < 0.3, pt < 0.5 GeV/c, p γ T > 15 GeV/c Isolated-photon and jet pairs are selected with a cut in azimuth based on photon-jet MC simulations in pp collisions at s = 7 TeV: Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
13 Angular correlation in pp collisions at s = 7 TeV Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
14 Transverse momentum ratio in pp collisions at s = 7 TeV Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
15 Jet fragmentation functions in pp collisions at s = 7 TeV Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
16 Analysis in Run 2: statistics Statistics of isolated-photon jet correlation will be significantly increased in Run 2 Estimation of correlated prompt photon in pp collisions at s = 13 TeV with Pythia isolated photons reconstructed with EMCal L int = nb 1 Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
17 Analysis in Run 2: DCal Di-jet Calorimeter (DCal) is being installed in the ALICE detector EMCal PHOS DCal DCal will be used to reconstructed isolated photons ITS/TPC and EMCal will be used to reconstructed full jets Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
18 Outlook Isolated-photon jet correlations have been studied in pp collisions at s = 7 TeV Statistics of isolated-photon jet correlation will be significantly increased in Run 2 ITS/TPC and EMCal will provide reconstruction of full jets and DCal will be used to reconstruct isolated photons Denise Moreira de Godoy (SUBATECH) Rencontres QGP-France 2014 September 17, / 18
Jet Results in pp and Pb-Pb Collisions at ALICE
Jet Results in pp and Pb-Pb Collisions at ALICE Oliver Busch for the ALICE Collaboration Motivation Jet reconstruction in ALICE Jets in pp Jets in Pb-Pb Hadron triggered recoil jets Motivation Jets originate
Two-particle Correlations in pp and Pb-Pb Collisions with ALICE
wo-particle Correlations in pp and Pb-Pb Collisions with ALICE Xiangrong Zhu, Ruina Dang (for the ALICE Collaboration) Institute Of Particle Physics, Central China Normal University he 9th Chinese Physical
Matt Nguyen Rencontres QGP-France September 13 th, 2013
Matt Nguyen Rencontres QGP-France September 13 th, 2013 Review of jets in heavy ions 2 The Usual Disclaimers Not a comprehensive review, rather mostly a summary of experimental talks at July Jussieu workshop*
Jet Physics with ALICE
Jet Physics with ALICE Oliver Busch for the ALICE collaboration Oliver Busch Tsukuba 2014 /03/13 1 Outline introduction results from pp jets in heavy-ion collisions results from Pb-Pb collisions jets in
Charged jets in p Pb collisions measured with the ALICE detector
Charged jets in p Pb collisions measured with the ALICE detector (CERN) for the ALICE collaboration (25.03.2015) Rencontres de Moriond, QCD and High Energy Interactions, La Thuile Motivation for p Pb Study
High p T Physics with ALICE/EMCal
High p T Physics with ALICE/EMCal Physics with ALICE/EMCal EMCal performance Physics performance (several topics) Collaboration EMCal/FRANCE : Subatech Nantes, LPSC Grenoble, IPHC Strasbourg Groupe Physique
Measurement of Inclusive Charged Jet Production in pp and Pb-Pb collisions at snn = 5.02 TeV with ALICE
1 Measurement of Inclusive Charged Jet Production in pp and Pb-Pb collisions at snn = 5.02 TeV with ALICE Hiroki Yokoyama for the ALICE collaboration LPSC, Université Grenoble-Alpes, CNRS/IN2P3 University
Measurement of inclusive charged jet production in pp and Pb-Pb
Measurement of inclusive charged jet production in pp and Pb-Pb collisions at S NN 5. 02TeV with ALICE Run2 Data Yan Li for the ALICE collaboration Central China Normal University CLHCP 2016 18/12/2016
Prospective of gamma hadron correlation. study in CMS experiment
Prospective of gamma hadron correlation. study in CMS experiment Yeonju Go (Korea University) for the CMS collaboration 5-6 Dec. 2014 HIM meeting Contents Physics Motivation Direct gamma-hadron correlation
Preparations for the ATLAS Heavy Ion Physics Program at the LHC. Deepak Kar IKTP, TU Dresden On behalf of the ATLAS Collaboration
Preparations for the ATLAS Heavy Ion Physics Program at the LHC Deepak Kar IKTP, TU Dresden On behalf of the ATLAS Collaboration 1 QCD Hadronic phase: Bound states of quark and gluon pp collisions Heavy
arxiv: v1 [nucl-ex] 14 Oct 2013
![arxiv: v1 [nucl-ex] 14 Oct 2013](/thumbs/88/114892355.jpg "arxiv: v1 [nucl-ex] 14 Oct 2013")
Charged Jets in Minimum Bias p-pb Collisions at snn = 5.02 TeV with ALICE arxiv:1310.3612v1 [nucl-ex] 14 Oct 2013 for the ALICE collaboration Westfälische Wilhelms-Universität Münster, Germany E-mail:
Photon and neutral meson production in pp and PbPb collisions at ALICE
Photon and neutral meson production in pp and PbPb collisions at ALICE Dieter Roehrich University of Bergen, Norway for the ALICE Collaboration Nuclear collisions at the LHC Photons as a probe for the
Measurement of Quenched Energy Flow for Dijets in PbPb collisions with CMS
Measurement of Quenched Energy Flow for Dijets in PbPb collisions with CMS For the CMS Collaboration NPA Seminar Yale, USA 15 October, 2015 Relativistic Heavy Ion Collisions Trying to answer two important
First Run-2 results from ALICE
First Run-2 results from ALICE Goethe University Frankfurt & GSI on behalf of the ALICE Collaboration XLV International Symposium on Multiparticle Dynamics Wildbad Kreuth, 4-9 Oct 2015 1 Outline Introduction
Suppression of neutral pion production at large transverse momentum measured with the ALICE experiment in Pb-Pb collisions at s NN =2.
Suppression of neutral pion production at large transverse momentum measured with the ALICE experiment in Pb-Pb collisions at s NN =.76 ev Gustavo Conesa Balbastre for the ALICE collaboration 6/5/11 G.
Exploring Jet Properties in p+p Collisions at 200 GeV with STAR
Exploring Jet Properties in p+p Collisions at 200 GeV with SAR Helen Caines - Yale University - for the SAR Collaboration Outline Quark Matter 2009 Knoxville,N, USA March 30 th -April 4 th What we know
Background Subtraction Methods on Recoil Jets from Proton-Proton Collisions
Background Subtraction Methods on Recoil Jets from Proton-Proton Collisions Colby Ostberg San Francisco State University REU student at Texas A&M Cyclotron Institute 1 Motivation At the RHIC, heavy ions
Jet Properties in Pb-Pb collisions at ALICE
Jet Properties in Pb-Pb collisions at ALICE Oliver Busch University of sukuba Heidelberg University for the ALICE collaboration Oliver Busch LHC Seminar 5/216 1 Outline Introduction Jets in heavy-ion collisions
Jet Physics at ALICE. Oliver Busch. University of Tsukuba Heidelberg University
Jet Physics at ALICE Oliver Busch University of Tsukuba Heidelberg University 1 2 Outline Introduction Results from pp collisions Identified jet fragmentation in pp Jets in heavy-ion collisions Jet shapes
Study of dihadron fragmentation function correlations using charged jets in proton-proton collisions at s = 7 TeV
Study of dihadron fragmentation function correlations using charged jets in proton-proton collisions at s = 7 TeV Derek Everett, Claude Pruneau, Sidharth Prasad August, Abstract We present the measurements
Strangeness production and nuclear modification at LHC energies
Strangeness production and nuclear modification at LHC energies Oliver Busch for the ALICE collaboration 1 Outline introduction jet azimuthal anisotropy jet shapes 2 Introduction 3 Jets: seeing quarks
Jet Physics at the LHC
Jet Physics at the LHC Oliver Busch University of Tsukuba Heidelberg University 1 pp jet cross sections and fragmentation pp identified jet fragmentation Nuclear modification factor Event plane dependence
Inclusive spectrum of charged jets in central Au+Au collisions at s NN = 200 GeV by STAR
Inclusive spectrum of charged jets in central Au+Au collisions at s NN = 200 GeV by SAR Nuclear Physics Institute, Academy of Sciencis of Czech Republic, Na ruhlarce 39/64, 180 86 Prague, Czech Republic
LHC Heavy Ion Physics Lecture 5: Jets, W, Z, photons
LHC Heavy Ion Physics Lecture 5: Jets, W, Z, photons HUGS 2015 Bolek Wyslouch Techniques to study the plasma Radiation of hadrons Azimuthal asymmetry and radial expansion Energy loss by quarks, gluons
+ High p T with ATLAS and CMS in Heavy-Ion 2.76TeV
+ High p T with ATLAS and CMS in Heavy-Ion Collisions @ 2.76TeV Lamia Benhabib On behalf of ATLAS and CMS HCP 2011, Paris lamia.benhabib@llr.in2p3.fr +Outlook Introduction : hard probes Strongly interacting
Measurement of photon production cross sections also in association with jets with the ATLAS detector
Nuclear and Particle Physics Proceedings 00 (07) 6 Nuclear and Particle Physics Proceedings Measurement of photon production cross sections also in association with jets with the detector Sebastien Prince
Jet quenching in PbPb collisions in CMS
Jet quenching in PbPb collisions in CMS Bolek Wyslouch École Polytechnique Massachusetts Institute of Technology arxiv:1102.1957 Orsay, February 18, 2011 1 Heavy Ions at the LHC Huge energy jump from RHIC:
Conference Report Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland
Available on the CMS information server CMS CR 212/178 The Compact Muon Solenoid Experiment Conference Report Mailing address: CMS CERN, CH211 GENEVA 23, Switzerland 212//9 Measurement of isolated photon
Recent Jet Results from the CMS experiment
Recent Jet Results from the CMS experiment Raghav Kunnawalkam Elayavalli ( USA) Nuclear Seminar Monday, February 2nd, 2015 1 Overview https://twiki.cern.ch/twiki/bin/view/cmspublic/ PhysicsResultsHIN Motivations
Susanna Costanza. (Università degli Studi di Pavia & INFN Pavia) on behalf of the ALICE Collaboration
(Università degli Studi di Pavia & INFN Pavia) on behalf of the ALICE Collaboration 102 Congresso della Società Italiana di Fisica Padova, 26-30 settembre 2016 Outline Heavy flavour physics in ALICE The
Study of Dihadron Fragmentation Function Correlations in p-p collisions at 7 TeV. Derek Everett Dr. Claude Pruneau, Dr.
Study of Dihadron Fragmentation Function Correlations in p-p collisions at 7 TeV Derek Everett Dr. Claude Pruneau, Dr. Sidharth Prasad Outline Physics Motivation Definitions of Observables PYTHIA Monte
Study of di jet proper/es in p+p collisions at s = 7 TeV by the LHC ALICE experiment
Study of di jet proper/es in p+p collisions at s = 7 TeV by the LHC ALICE experiment Tatsuya Chujo for the ALICE collabora1on (University of Tsukuba) Outline Physics mo/va/on ALICE experiment and data
Lecture 3: jets in heavy ion collisions
Lecture 3: jets in heavy ion collisions Marco van Leeuwen, Nikhef and Utrecht University JET School, UC Davis, 9-2 June 204 Jets and parton energy loss Motivation: understand parton energy loss by tracking
Review of photon physics results at Quark Matter 2012
Review of photon physics results at Quark Matter 2012 Jet Gustavo Conesa Balbastre 1/28 Why photons? Direct thermal: Produced by the QGP Measure medium temperature R AA > 1, v 2 > 0 Direct prompt: QCD
et Experiments at LHC
et Experiments at LHC (as opposed to Jet Physics at RHIC ) JET Collaboration Symposium Montreal June 2015 Heavy-ion jet results at LHC Dijet asymmetries Observation of a Centrality-Dependent Dijet Asymmetry
arxiv: v1 [hep-ex] 18 Jan 2016
![arxiv: v1 [hep-ex] 18 Jan 2016](/thumbs/73/69469157.jpg "arxiv: v1 [hep-ex] 18 Jan 2016")
Jet measurements in pp, p Pb and Pb Pb collisions with ALICE at the LHC arxiv:6.446v [hep-ex] 8 Jan 6 Centre for Astroparticle Physics and Space Science, Bose Institute, Kolkata, 79 (INDIA) E-mail: sprasad@cern.ch
Multiplicity dependence of charged pion, kaon, and (anti)proton production at large transverse momentum in p-pb collisions at 5.
[1] Multiplicity dependence of charged pion, kaon, and (anti)proton production at large transverse momentum in p-pb collisions at 5.02 ATeV Gyula Bencedi (Wigner RCP, Hungary) on behalf of the ALICE Collaboration
Measurement of Jet Quenching in Pb-Pb Collisions at snn = 5.02 TeV in the ALICE Experiment at the LHC
Measurement of Jet Quenching in Pb-Pb Collisions at snn = 5.02 TeV in the ALICE Experiment at the LHC Hiroki Yokoyama LPSC, Université Grenoble-Alpes, CNRS/IN2P3 University of Tsukuba, Japan 2/04/206 2nd
Results with Hard Probes High p T Particle & Jet Suppression from RHIC to LHC
Results with Hard Probes High p T Particle & Jet Suppression from RHIC to LHC PHENIX! AGS! RHIC! STAR! Cover 3 decades of energy in center-of-mass s NN = 2.76 TeV 5.5 TeV (2015) CMS LHC! s NN = 5-200 GeV
Exploring the QGP with Jets at ALICE
Exploring the QGP with Jets at ALICE Oliver Busch University of sukuba Oliver Busch HI café, okyo 217/1 1 jets in pp collisions jets in heavy-ion collisions jet nuclear modification factor event plane
The measurement of non-photonic electrons in STAR
The measurement of non-photonic electrons in STAR Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Břehová 7, 11519, Prague 1, Czech Republic E-mail: olga.hajkova@fjfi.cvut.cz
ALICE results in p Pb collisions at the LHC
on behalf of the ALICE Collaboration Subatech - Laboratoire de Physique Subatomique et des Technologies Associées, Nantes, France E-mail: stocco@subatech.inp.fr ALICE studies the properties of the strongly
Photo-production of vector mesons in 2.76 TeV ultra-peripheral Pb+Pb collisions at ALICE. Daniel Tapia Takaki. On behalf of the ALICE Collaboration
Photo-production of vector mesons in 2.76 TeV ultra-peripheral Pb+Pb collisions at ALICE On behalf of the ALICE Collaboration Rencontres du Viet Nam: 14th Workshop on Elastic and Diffractive Scattering
Jet fragmentation study in vacuum and in medium in the ALICE experiment at the LHC
Jet fragmentation study in vacuum and in medium in the ALICE experiment at the LHC Magali Estienne for the ALICE Collaboration WISH 2010 Catania, Italia, September 8-10 2010 Outline 2 Motivations for jet
Quarkonium results in pp collisions from ALICE
Quarkonium results in pp collisions from ALICE Giuseppe E Bruno Università di Bari and INFN Italy for the ALICE collaboration Outline: introduction measurements in pp at s=7 and 2.76 TeV Integrated and
Z 0 /γ +Jet via electron decay mode at s = 7TeV in
PRAMANA c Indian Academy of Sciences Vol. 86, No. 2 journal of February 2016 physics pp. 487 491 Z 0 /γ +Jet via electron decay mode at s = 7TeV in CMS@LHC U BHAWANDEEP and SUMAN B BERI for CMS Collaboration
Measurement of the Inclusive Isolated Prompt Photon Cross Section at CDF
of the Inclusive Isolated Cross at IFAE Barcelona HEP Seminar University of Virginia Outline Theoretical introduction Prompt photon production The The Photon detection prediction The pqcd NLO prediction
Selected highlights from the STAR experiment at RHIC
Selected highlights from the STAR experiment at RHIC Sonia Kabana for the STAR Collaboration Laboratoire de Physique Subatomique et des technologies associees (SUBATECH) and University of Nantes, France
Transverse momentum and pseudorapidity distributions with minimum bias events in CMS at the LHC
Transverse momentum and pseudorapidity distributions with minimum bias events in CMS at the LHC Christof Roland/ MIT For the CMS Collaboration Rencontres de Moriond QCD Session 14 th March, 2010 Moriond
Jet reconstruction in W + jets events at the LHC
Jet reconstruction in W + jets events at the LHC Ulrike Schnoor Michigan State University High Energy Physics Institutsseminar IKTP TU Dresden, Nov 4, 010 Jet reconstruction in W + jets events at the LHC
QCD at CDF. Régis Lefèvre IFAE Barcelona On behalf of the CDF Collaboration
QCD at CDF Régis Lefèvre IFAE Barcelona On behalf of the CDF Collaboration Jet Inclusive Cross-Section Underlying event studies Jet Shapes Specific processes _ W+Jets, γ + γ, γ + b/c, b-jet / bb jet Diffraction
Jet Quenching in Heavy Ion collisions at the CMS detector
Jet Quenching in Heavy Ion collisions at the CMS detector Raghav Kunnawalkam Elayavalli ( USA) For the CMS Collaboration GHP 2015 Baltimore, MD 8 th April 2015 1 HI Collisions QGP Quark Gluon Plasma The
Quarkonia and Open Heavy Flavor Results from CMS
Quarkonia and Open Heavy Flavor Results from CMS For the CMS collaboration Heavy Quark Physics in Heavy-Ion Collisions ECT*, Trento, Italy 16-20 March, 2015 Relativistic Heavy Ion Collisions Trying to
Quarkonium production measurement in Pb-Pb collisions at forward and mid rapidity with the ALICE experiment
Quarkonium production measurement in Pb-Pb collisions at forward and mid rapidity with the ALICE experiment Lizardo Valencia Palomo Institut de Physique Nucléaire d Orsay (CNRS-IN2P3, Université Paris-Sud
Open heavy-flavour production in pp, p Pb and Pb Pb collisions in ALICE
Open heavy-flavour production in pp, p Pb and Pb Pb collisions in ALICE (INFN, Bologna) on behalf of the ALICE Collaboration Bormio Winter Meeting 26/01/2018 Why open heavy flavour in ALICE? Heavy-flavour
JET FRAGMENTATION DENNIS WEISER
JET FRAGMENTATION DENNIS WEISER OUTLINE Physics introduction Introduction to jet physics Jets in heavy-ion-collisions Jet reconstruction Paper discussion The CMS experiment Data selection and track/jet
Dijet Asymmetry in Pb+Pb Collisions at S NN = 2.76 TeV Using the ALICE Experiment
Dijet Asymmetry in Pb+Pb Collisions at S NN = 2.76 TeV Using the ALICE Experiment { Isaac Mooney Advisors: Joern Putschke, Rosi Reed Wayne State University National Science Foundation Friday, August 8,
The rejection of background to the H γγ process using isolation criteria based on information from the electromagnetic calorimeter and tracker.
Available on CMS information server CMS NOTE 22/3 The Compact Muon Solenoid Experiment CMS Note Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland September 9, 22 The rejection of background to
Neutral meson and direct photon measurement in pp and Pb Pb collisions at midrapidity with the ALICE experiment at the LHC
Neutral meson and direct photon measurement in pp and Pb Pb collisions at midrapidity with the ALICE experiment at the LHC Lucia Leardini Physikalisches Institut Heidelberg on behalf of the ALICE Collaboration
Heavy-flavour meson production at RHIC
Heavy-flavour meson production at RHIC André Mischke ERC-Starting Independent Research Group QGP - Utrecht 1 Outline Introduction - heavy-flavour production and energy loss in QCD matter Total charm production
Jet Quenching at RHIC and LHC
Jet Quenching at RHIC and LHC Oliver Busch University of sukuba Heidelberg University 1 Nuclear modification factor Event plane dependence Semi-inclusive jet-hadron yields Jet shapes, subjets, jet mass
arxiv: v1 [hep-ex] 9 Jan 2019
![arxiv: v1 [hep-ex] 9 Jan 2019](/thumbs/93/113938847.jpg "arxiv: v1 [hep-ex] 9 Jan 2019")
Quarkonium production as a function of charged-particle multiplicity in pp and p Pb collisions measured by ALICE at the LHC arxiv:1901.02627v1 [hep-ex] 9 Jan 2019 Discipline of Physics, School of Basic
Federico Antinori (INFN Padova, Italy) on behalf of the ALICE Collaboration
Federico Antinori (INFN Padova, Italy) on behalf of the ALICE Collaboration ALICE run 2009-2010 Detector performance First physics results A taste of other analyses in advanced stage Outlook / Conclusion
arxiv: v1 [hep-ex] 18 May 2015
![arxiv: v1 [hep-ex] 18 May 2015](/thumbs/94/118739665.jpg "arxiv: v1 [hep-ex] 18 May 2015")
ALICE summary of light flavour results at intermediate and high p arxiv:55.477v [hep-ex] 8 May 5 uva Richert, on behalf of the ALICE collaboration Lund University, Department of Physics, Div. of Particle
Selected highlights from RHIC
Selected highlights from RHIC Sonia Kabana Laboratoire de Physique Subatomique et des technologies associees (SUBATECH) and University of Nantes, France QGP-France workshop Etretat, France, 9-11 September
LHCb results in proton-nucleus collisions at the LHC
LHCb results in proton-nucleus collisions at the LHC PANIC August 28, 2014 on behalf of the LHCb collaboration Outline Motivation LHCb Detector Beam configurations Measurements J/Ψ production Υ production
PoS(DIS2017)208. Nuclear PDF studies with proton-lead measurements with the ALICE detector
Nuclear PDF studies with proton-lead measurements with the ALICE detector a,b for the ALICE Collaboration a Institute for Subatomic Physics, Department for Physics and Astronomy and EMMEφ, Faculty of Science,
arxiv: v1 [hep-ph] 5 Nov 2014
![arxiv: v1 [hep-ph] 5 Nov 2014](/thumbs/73/69562098.jpg "arxiv: v1 [hep-ph] 5 Nov 2014")
Hard probes and the event generator EPOS arxiv:1411.1336v1 [hep-ph] 5 Nov 2014 B Guiot and K Werner SUBATECH, University of Nantes-IN2P3/CNRS-EMN, Nantes, France E-mail: guiot@subatech.in2p3.fr Abstract.
51st Rencontres de Moriond QCD and High Energy Interactions La Thiule, IT 25/Mar/2016. Manuel Calderón de la Barca Sánchez
51st Rencontres de Moriond QCD and High Energy Interactions La Thiule, IT 25/Mar/2016 Manuel Calderón de la Barca Sánchez Heavy Flavors in Heavy Ions Heavy quarks produced early: initial hard parton collision
QCD Jets at the LHC. Leonard Apanasevich University of Illinois at Chicago. on behalf of the ATLAS and CMS collaborations
QCD Jets at the LHC Leonard Apanasevich University of Illinois at Chicago on behalf of the ATLAS and CMS collaborations Outline Physics at the LHC Jet Reconstruction and Performance Clustering Algorithms
Recent results from relativistic heavy ion collisions
Recent results from relativistic heavy ion collisions Camelia Mironov MI at the LHC A teaser talk with very few (though recent) results LHC Heavy-Ion (HI) Program Collision systems Center of mass colliding
Measurement of the jet production properties at the LHC with the ATLAS Detector
Measurement of the jet production properties at the LHC with the ALAS Detector Stanislav okar Comenius University, Bratislava On behalf of the ALAS collaboration Different features of the jet production
First Run II results from ALICE
EPJ Web of Conferences will be set by the publisher DOI: will be set by the publisher c Owned by the authors, published by EDP Sciences, 06 First Run II results from ALICE Alberica oia,,a on behalf of
Zhong-Bo Kang Los Alamos National Laboratory
Introduction to pqcd and Jets: lecture 3 Zhong-Bo Kang Los Alamos National Laboratory Jet Collaboration Summer School University of California, Davis July 19 21, 2014 Selected references on QCD QCD and
Nikos Varelas. University of Illinois at Chicago. CTEQ Collaboration Meeting Northwestern November 20, Nikos Varelas. CTEQ Meeting Nov 20, 2009
QCD Physics at CMS University of Illinois at Chicago CTEQ Collaboration Meeting Northwestern November 0, 009 1 QCD Physics at CMS University of Illinois at Chicago CTEQ Collaboration Meeting Northwestern
Heavy-flavor production in pp and Pb Pb collisions at LHC with ALICE
Heavy-flavor production in pp and Pb Pb collisions at LHC with ALICE Kai Schweda 1 on behalf of the ALICE Collaboration Physikalisches Institut der Universität Heidelberg, Philosophenweg 12, D-69120 Heidelberg,
Neutral meson and direct photon measurement in pp and Pb Pb collisions at midrapidity with the ALICE experiment at the LHC
Neutral meson and direct photon measurement in pp and Pb Pb collisions at midrapidity with the ALICE experiment at the LHC Lucia Leardini PI Heidelberg on behalf of the ALICE Collaboration 54th International
Physics 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
Measurement of W-boson production in p-pb collisions at the LHC with ALICE
Measurement of W-boson production in p-pb collisions at the LHC with ALICE for the ALICE Collaboration University of Cape Town Rondebosch, Cape Town, 7700, South Africa ithemba Laboratory of Accelerator
Monte Carlo activities in ALICE
Monte Carlo activities in ALICE status and prospects Jochen Klein for the ALICE Collaboration CERN 8th International Workshop on Multiple Partonic Interactions at the LHC San Cristóbal de las Casas, Chiapas,
QCD Jet Physics with CMS LHC
QCD Jet Physics with CMS Detector @ LHC Y.Chao for the CMS Collaboration (National Taiwan University, Taipei, Taiwan) QCD10 (25th annivervary) 2010/06/28-07/03 The Large Hadron Collider Four major experiments
How to Measure Top Quark Mass with CMS Detector??? Ijaz Ahmed Comsats Institute of Information Technology, Islamabad
How to Measure Top Quark Mass with CMS Detector??? Ijaz Ahmed Comsats Institute of Information Technology, Islamabad Outlines o o o o o o o High Pt top basic idea Methods for jets selection Top quark mass
Ridge correlation structure in high multiplicity pp collisions with CMS
Ridge correlation structure in high multiplicity pp collisions with CMS Dragos Velicanu for the CMS Collaboration MBUEWG CERN, Geneva, June 17 2011 Results from High Multiplicity pp Dragos Velicanu (MIT)
Multi-hadron Triggered Azimuthal Correlations in Au+Au Collisions at s NN = 200 GeV from STAR. Brooke Haag UC Davis
Multi-hadron Triggered Azimuthal Correlations in Au+Au Collisions at s NN = 200 GeV from STAR Brooke Haag UC Davis Outline Introduction / Analysis Technique Motivation for multi-hadron triggers Explanation
Jet fragmentation study with particle correlations from the ALICE experiment at the LHC
Jet fragmentation study with particle correlations from the ALICE experiment at the LHC Dong Jo,Kim University of Jyväskylä & Helsinki Institute of Physics for the ALICE Collaboration NN5, Catania, Italy
Precision QCD at the Tevatron. Markus Wobisch, Fermilab for the CDF and DØ Collaborations
Precision QCD at the Tevatron Markus Wobisch, Fermilab for the CDF and DØ Collaborations Fermilab Tevatron - Run II Chicago Ecm: 1.8 1.96 TeV more Bunches 6 36 Bunch Crossing 3500 396ns CDF Booster Tevatron
Jet reconstruction with first data in ATLAS
University of Victoria, Victoria, BC, Canada E-mail: damir.lelas@cern.ch The algorithms used for jet reconstruction in ATLAS are presented. General performance aspects like jet signal linearity and the
Using Drell-Yan to Probe the
Using Drell-Yan to Probe the Underlying Event in Run 2 at CDF Deepak Kar University of Florida (On behalf of the CDF Collaboration) Experimental Particle Physics Seminar 30 th October 2008 Prologue: We
Measurements of the dilepton continuum in ALICE. Christoph Baumann Resonance Workshop, Austin
Measurements of the dilepton continuum in ALICE Christoph Baumann 07.03.2012 Resonance Workshop, Austin ALICE Central Detectors: Inner Tracking System Time Projection Chamber Time-of-Flight Transition
Review of LHCb results on MPI, soft QCD and diffraction
Review of LHCb results on MPI, soft QCD and diffraction Marcin Kucharczyk on behalf of LHCb collaboration HNI Krakow EDS Blois 2015, Borgo (Corse), 30.06.2015 Outline LHCb - general purpose forward experiment
Gluon Polarization Measurements at STAR
Gluon Polarization Measurements at Matthew Walker for the Collaboration Outline! Brief theoretical motivation! Inclusive measurements: Jets and pions! Correlation measurements: Di-Jets! Status and Prospects
Recent results in proton-lead collisions with ALICE at the LHC from RUN 2012 and 2013
Recent results in proton-lead collisions with ALICE at the LHC from RUN 2012 and 2013 the APCTP 2013 LHC Physics Workshop at Korea August 6-8, 2013 Konkuk University, Seoul, Korea Toru Sugitate for the
Learning about the QGP using Jets
Learning about the QGP using Jets Raghav Kunnawalkam Elayavalli (Rutgers University) http://physics.rutgers.edu/~raghav/ Nuclear Physics Seminar Oct 31st 2016 1 What are we trying to study? 2 3 Jets! 4
Physics at Hadron Colliders Part II
Physics at Hadron Colliders Part II Marina Cobal Università di Udine 1 The structure of an event One incoming parton from each of the protons enters the hard process, where then a number of outgoing particles
Heavy quark results from STAR
Eur. Phys. J. C (2009) 61: 659 664 DOI 10.1140/epjc/s10052-009-0931-4 Regular Article - Experimental Physics Heavy quark results from STAR Xin Dong a for the STAR Collaboration Lawrence Berkeley National
Studies of the diffractive photoproduction of isolated photons at HERA
Studies of the diffractive photoproduction of isolated photons at HERA P. J. Bussey School of Physics and Astronomy University of Glasgow Glasgow, United Kingdom, G12 8QQ E-mail: peter.bussey@glasgow.ac.uk
Recent QCD results from ATLAS
Recent QCD results from ATLAS PASCOS 2013 Vojtech Pleskot Charles University in Prague 21.11.2013 Introduction / Outline Soft QCD: Underlying event in jet events @7TeV (2010 data) Hard double parton interactions
Heavy flavour production at RHIC and LHC
Heavy flavour production at RHIC and LHC Gian Michele Innocenti 1, 1 Massachusetts Institute of Technology Abstract. In this proceedings, I present selected experimental results on heavy-flavour production
Results on heavy ion collisions at LHCb
Results on heavy ion collisions at LHCb Marcin Kucharczyk on behalf of LHCb collaboration HNI Krakow 28th Rencontres de Blois 29.05-03.06 2016 Outline LHCb - general purpose forward experiment Physics
Overview of ALICE results on azimuthal correlations using neutral- and heavy-flavor triggers
Journal of Physics: Conference Series PAPER OPEN ACCESS Overview of ALICE results on azimuthal correlations using neutral- and heavy-flavor triggers o cite this article: Sona Pochybova and ALICE Collaboration