Azimuthally-sensitive pion HBT in STAR
|
|
- Roderick McDaniel
- 6 years ago
- Views:
Transcription
1 Azimuthally-sensitive pion HBT in STAR Christopher Anson for the STAR collaboration Ohio State University
2 Outline Reconstructing the Reaction Plane HBT analysis and corrections for effects from v 2 and number of particles on reaction plane resolution effects from finite bin width Year 4 and Year 2 comparison, 200 GeV Year 4, 62.4 GeV results Excitation function 2
3 Motivation Energy dependence eccentricity at freeze-out constrains models Non-monotonic behavior may indicate interesting physics 3
4 Computing the reaction plane y LAB Q x LAB Reaction plane vector components are N particles Q x = w p t cos 2 n n=1 N particles Q y = w p t sin 2 n n=1 Finite number of particles and detector inefficiencies affect accuracy of reaction plane determination. Use charged particles in TPC (cuts on upcoming slide) 4
5 Correcting the reaction plane for detector effects Track reconstruction inefficiency biases reaction plane in certain directions. Phi-weight tracks with w = N, avg N Phi weighting makes reaction plane distribution isotropic. Reaction planes before Reaction planes after 25% effect 5
6 Event, track, and pair cuts Event Cuts: V z < 25 cm (200 GeV) V x & Vy < 1 cm η SymTPC < 3 V z < 30 cm (62 GeV) Track Cuts: Reaction Plane HBT analysis 0.15<P t <12.0 GeV/c 0.1 < P t < 1.0 GeV/c η <1.3 y < <nFitPts<50 nhits >= <nFitOverMax<1.05 2D DCA < 3.0 cm Sigma π <= 2 Sigma k,p,e > 2 Pair Cuts: HBT analysis 0.15 < K t < 0.6 GeV/c Anti-merging maxfracmergedpair= <quality<0.6 6
7 B R Reaction Plane resolution and finite angular bins 0 o 45 o 90 o 135 o Oscillations reduced by reaction plane resolution cos[2 m R ] and finite angular bins sin n /2 n / 2 Reaction Plane resolution vs. Centrality A R 2 out actuallyn q 200 GeV 62 GeV
8 Correction scheme Expand the correlation function with Fourier series where n bins /2 N exp q, j =N exp 0 q 2 [ N exp c, n q cos n j N exp s, n q sin n j ] n=1 n bins N exp c,n q = 1 n bins j=1 n bins N exp s, n q = 1 n bins j=1 N exp q, j cos n j N exp q, j sin n j The true numerator is then given by n bins / 2 N q, j =N exp q 2 n,m [ N exp c,n q cos n j N exp s,n q sin n j ] n=1 where the correction term is n, m = n /2 sin n /2 1 cos[n m R ] 1 Repeat for denominator and Coulomb interaction histogram. Correction Method from U. Heinz, A. Hummel, M.A. Lisa, and U. A. Wiedemann, Phys. Rev. C 52, 2694 (1995). 8
9 Fitting procedure C q o,q s,q l = N q D q = 1 K Coul q inv 1 e q 2 o R 2 o q 2 s R 2 s q 2 l R 2 2 l 2q o q s R os Refit with λ = <λ> avg Au+Au 200 GeV 1.3 CF out q out CF 1.3 side CF 1.3 long q side q long
10 Computing Fourier Coefficients Fourier coefficients computed from radii: Au+Au 200 GeV Oscillations for 20-30% Centrality and K t = GeV/c R 0,i N bins 2 = j=1 R i 2 j i=o, s,l,os R 2 out R 2 side Uncorrected Corrected R 2, i N bins 2 = j=1 R i 2 j cos 2 j i=o, s,l 2 = R 2, i N bins R i 2 j sin 2 j j=1 i=os R 2 long φ R 2 os φ φ φ 10
11 Computing eccentricity at freeze-out Eccentricity from Blast-wave model: Eccentricity equation derived in Retiere and Lisa, nucl-th/ K t Average Method: Compute ε f for the three K t bins separately Simply average KtAvg = Kt1 Kt2 Kt3 3 K t Integrated Method: = R 2 2 y R x R 2 y R =2 R 2 s,2 2 2 x R s,0 Compute ε f for one K t Integrated correlation function 11
12 Y4 at 200 GeV Uncorrected vs Corrected Y4 200 GeV Uncorrected Y4 200 GeV Corrected The correction scheme increases the oscillations and therefore the eccentricities. 12
13 Y4 at 62.4 GeV Uncorrected vs Corrected Y GeV Uncorrected Y GeV Corrected The correction scheme increases the oscillations and therefore the eccentricities. 13
14 Y4 vs Y2 at 200 GeV Lowest K t bin 0 th order R out and R long a bit low Some differences present in the 2 nd order / 0 th order Y2, 200 GeV Y4, 200 GeV Kt = Year 2 data from J. Adams et al. (STAR Collaboration), Phys. Rev. Lett. 93, (2004) 14
15 Y4 vs Y2 at 200 GeV Middle K t bin 0 th order agree pretty well Some differences present in the 2 nd order / 0 th order Y2, 200 GeV Y4, 200 GeV Year 2 data from J. Adams et al. (STAR Collaboration), Phys. Rev. Lett. 93, (2004) 15
16 Y4 vs Y2 at 200 GeV Highest K t bin 0 th agree well Some differences present in the 2 nd order / 0 th order Y2, 200 GeV Y4, 200 GeV Year 2 data from J. Adams et al. (STAR Collaboration), Phys. Rev. Lett. 93, (2004) 16
17 Y4 at 200 GeV K t Integrated Y4, 200 GeV Year 2 data from J. Adams et al. (STAR Collaboration), Phys. Rev. Lett. 93, (2004) 17
18 Y4 vs Y2 at 200 GeV Y2 200 GeV, K t Avg Y4 200 GeV, K t Avg Y2 200 GeV, K t Avg Y4 200 GeV, K t Int Some differences (most central bin in particular) Physics extracted comes from 3 rd and 4 th bins which yield similar final eccentricity. 18
19 Fit Range Effects Fit Range: q < 0.15 GeV/c Lowest Kt, 0 th order disagree Y2 200 GeV, K t Avg Y4 200 GeV, K t Avg Y2, 200 GeV Y4, 200 GeV Year 2 data from J. Adams et al. (STAR Collaboration), Phys. Rev. Lett. 93, (2004) 19
20 Fit Range Effects Fit Range: q < 0.12 GeV/c Lowest Kt, 0 th order agree better ε almost unchanged Y2 200 GeV, K t Avg Y4 200 GeV, K t Avg Y2, 200 GeV Y4, 200 GeV Year 2 data from J. Adams et al. (STAR Collaboration), Phys. Rev. Lett. 93, (2004) 20
21 Y4 at 62.4 GeV Fit Range: q < 0.15 GeV/c Lowest K t bin Some scatter in R 2 s,2 / R 2 s,0 Y4, 62.4 GeV 21
22 Y4 at 62.4 GeV Fit Range: q < 0.15 GeV/c Middle K t bin Some scatter in R 2 s,2 / R 2 s,0 Y4, 62.4 GeV 22
23 Y4 at 62.4 GeV Fit Range: q < 0.15 GeV/c Highest K t bin Y4, 62.4 GeV 23
24 Y4 at 62.4 GeV Fit Range: q < 0.15 GeV/c K t Integrated Y4, 62.4 GeV 24
25 Y4 at 62.4 and 200 GeV Y GeV, K t Avg Y4 200 GeV, K t Avg Y GeV, K t Int Y4 200 GeV, K t Int 25
26 Excitation Function Y GeV greater than Y4 200 GeV (both K t Avg and K t Int cases) Y GeV slightly greater than Y2 200 GeV (K t Avg case) STAR Y4 preliminary Y10 BES 7.7, 11.5, 39 GeV Y11 BES 18, 29 GeV 26
27 Conclusions Preliminary Y GeV and Y4 200 GeV results suggest the excitation function is constant or slightly decreases at the higher energy. Further systematic studies needed. Need lower energies to determine shape of excitation function. Beam Energy Scan energies will fill in the excitation function 7.7 GeV, 11.5 GeV, 39 GeV Analysis in progress 18 GeV, 29 GeV Scheduled for Run 11 27
28 Backup slides 28
29 Close up of 62.4 and 200 GeV points Eccentricities at 62.4 GeV and 200 GeV Eccentricity Y Kt Avg Y Kt Int Y4 200 Kt Avg Y4 200 Kt Int Y2 200 Kt Avg Collision Energy (GeV) Energy Epsilon EpsError Y Kt Avg Y Kt Int Y4 200 Kt Avg Y4 200 Kt Int Y2 200 Kt Avg *Points in figure are slightly offset in energy for clarity. 29
30 Y4 200 GeV λ Fixed vs λ Free Y4 200 GeV, λ free Y4 200 GeV, λ fixed Y4 200 GeV, λ free Y4 200 GeV, λ fixed 30
31 Y GeV λ Fixed vs λ Free Y GeV, λ free Y GeV, λ fixed Y GeV, λ free Y GeV, λ fixed 31
32 Y4 200 GeV Two correction schemes Y4 200 GeV, Kt Avg, Radii Corrected Y4 200 GeV, Kt Avg, Histos Corrected Y4 200 GeV, Kt Int, Radii Corrected Y4 200 GeV, Kt Int, Histos Corrected 32
33 Y GeV Two correction schemes Y GeV, Kt Avg, Radii Corrected Y GeV, Kt Avg, Histos Corrected Y GeV, Kt Int, Radii Corrected Y GeV, Kt Int, Histos Corrected 33
34 Y4 Kt Integrated at 62.4 GeV 34
35 Y GeV vs Y2 200 GeV Kt Averaged 35
36 Y GeV Kt Int vs Y2 200 GeV KtAvg 36
37 Y4 Kt Averaged vs. Kt Integrated Y4 200 GeV, Kt Avg Y4 200 GeV, Kt Int Kt Integrated and Kt Averaged eccentricities are similar. 37
Global and Collective Dynamics at PHENIX
Global and Collective Dynamics at PHENIX Takafumi Niida for the PHENIX Collaboration University of Tsukuba Heavy Ion collisions in the LHC era in Quy Nhon outline n Introduction of v n n Higher harmonic
More informationParticle correlations in such collision?! N=n(n-1)/2. azimuthal, back-to back, multiplicity... close velocity,
Future of Nuclear Collisions at High Energies Kielce, Poland, October 14-17 2004 Particle correlations in heavy ion collisions Jan Pluta Warsaw University of Technology Faculty of Physics, Heavy Ion Reactions
More informationAzimuthal angle dependence of HBT radii with respect to the Event Plane in Au+Au collisions at PHENIX
Azimuthal angle dependence of HBT radii with respect to the Event Plane in Au+Au collisions at PHENIX TTaakkaaffuummii NNiiiiddaa ffoorr tthhee PPHHEENNIIXX CCoollllaabboorraattiioonn UUnniivveerrssiittyy
More informationK 0 sk 0 s correlations in 7 TeV pp collisions from the ALICE experiment at the LHC
K 0 sk 0 s correlations in 7 TeV pp collisions from the ALICE experiment at the LHC Tom Humanic Ohio State University for the ALICE Collaboration 1 WPCF 2011 Tokyo, Japan Motivation for studying K 0 sk
More informationEvent geometrical anisotropy and fluctuation viewed by HBT interferometry
Event geometrical anisotropy and fluctuation viewed by HB interferometry akafumi Niida University of sukuba -- ennoudai, sukuba, Ibaraki 35-857, Japan Abstract Azimuthal angle dependence of the pion source
More informationFinal source eccentricity measured by HBT interferometry with the event shape selection
Journal of Physics: Conference Series PAPER OPEN ACCESS Final source eccentricity measured by HB interferometry with the event shape o cite this article: akafumi Niida and PHENIX Collaboration J. Phys.:
More informationOutline: Introduction and Motivation
Heavy ion collisions at lower energies: challenges and opportunities Beam Energy Scan (BES I and II) from RHIC Lijuan Ruan (Brookhaven National Laboratory) Outline: Introduction and Motivation Results
More informationFFiinnaall ssoouurrccee eecccceennttrriicciittyy mmeeaassuurreedd bbyy HHBBTT iinntteerrffeerroommeettrryy wwiitthh tthhee eevveenntt sshhaappee
FFiinnaall ssoouurrccee eecccceennttrriicciittyy mmeeaassuurreedd bbyy HHBBTT iinntteerrffeerroommeettrryy wwiitthh tthhee eevveenntt sshhaappee sseelleeccttiioonn CCoonntteennttss EEvveenntt sshhaappee
More informationAngular correlations of identified particles in the STAR BES data
Angular correlations of identified particles in the STAR BES data, for the STAR Collaboration Warsaw University of Technology E-mail: andrew.lipiec@gmail.com The angular correlation function (CF) in this
More informationPion, Kaon, and (Anti-) Proton Production in Au+Au Collisions at s = 62.4 GeV
Pion, Kaon, and (Anti-) Proton Production in AuAu Collisions at s = 6.4 GeV NN Ming Shao 1, for the STAR Collaboration 1 University of Science & Technology of China, Anhui 3007, China Brookhaven National
More informationarxiv: v1 [nucl-ex] 10 Feb 2012
Cent. Eur. J. Phys. 1-5 Author version Central European Journal of Physics Highlights of the Beam Energy Scan from STAR Review Article arxiv:10.389v1 [nucl-ex] 10 Feb 01 A. Schmah for the STAR Collaboration
More informationAzimuthal distributions of high-pt direct and 0. at STAR
Azimuthal distributions of high-pt direct and 0 w.r.t reaction plane For the at STAR Ahmed Hamed Collaboration Hot Quarks 2010 La Londe les Maures, 21-26th June, 2010 Ahmed Hamed (Texas A&M University)
More informationStudy 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
More informationGlobal polarization of Λ and Λ hyperons in Pb Pb collisions at s NN = 2.76 TeV
Global polarization of and hyperons in Pb Pb collisions at s NN = 2.76 TeV Maxim Konyushikhin Wayne State University On behalf of the ALICE collaboration March 29, 27 QCD Chirality Workshop 27 Outline
More informationAnalysis of fixed target collisions with the STAR detector
Analysis of fixed target collisions with the STAR detector Brooke Haag for the STAR Collaboration Hartnell College / University of California, Davis Presented at the Meeting of the California Section of
More information11th International Workshop on High-pT Physics in the RHIC & LHC Era
11th International Workshop on High-pT Physics in the RHIC & LHC Era Contents Motivations Theoretical Predictions Results Summary and Outlook 2 Motivation: Parton Energy Loss in QGP q Energy loss: parton
More informationLight (anti)nucleus Production in s NN = GeV Au+Au Collisions in the STAR Experiment
Light (anti)nucleus Production in s NN = 7.7 200 GeV Au+Au Collisions in the STAR Experiment W.J. Llope for the STAR Collaboration Rice University APS-DNP Meeting, Newport Beach, CA, October 23-27, 2012
More informationEvent anisotropy at RHIC
Event anisotropy at RHIC Nu Xu - LBNL 1) Introduction 2) Experimental details and 200 GeV results v 2 (m 0, p T, y, b, A) 3) Summary and outlook PHENIX: N. Ajitanand, S. Esumi, R. Lacey, J. Rak PHOBOS:
More informationAzimuthal anisotropy of the identified charged hadrons in Au+Au collisions at S NN. = GeV at RHIC
Journal of Physics: Conference Series PAPER OPEN ACCESS Azimuthal anisotropy of the identified charged hadrons in Au+Au collisions at S NN = 39-200 GeV at RHIC To cite this article: S S Vdovkina 2017 J.
More informationLawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory
Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title High pt inclusive charged hadron spectra from Au+Au collisions at Sqrt(s_NN)=00 Gev Permalink https://escholarship.org/uc/item/3jp4v8vd
More informationarxiv:nucl-ex/ v1 10 May 2004
arxiv:nucl-ex/0405004v1 10 May 2004 Proc. 20th Winter Workshop on Nuclear Dynamics (2003) 000 000 Anisotropic flow at RHIC A. H. Tang 1 for the STAR Collaboration 1 NIKHEF and Brookhaven National Lab,
More informationMeasurement of Quantum Interference of Two Identical Particles with respect to the Event Plane in Relativistic Heavy Ion Collisions at RHIC-PHENIX
Measurement of Quantum Interference of Two Identical Particles with respect to the Event Plane in Relativistic Heavy Ion Collisions at RHIC-PHENIX Takafumi Niida High Energy Nuclear Physics Group TAC seminar,
More informationGlobal variables and identified hadrons in the PHENIX experiment
PRAMANA cfl Indian Academy of Sciences Vol. 60, No. 5 journal of May 003 physics pp. 953 963 in the PHENIX experiment JOHN P SULLIVAN, for the PHENIX Collaboration P-5 MS-H846, Los Alamos National Laboratory,
More informationPoS(CFRNC2006)014. Fluctuation studies in STAR. Supriya Das (for the STAR Collaboration)
Variable Energy Cyclotron Centre /AF, Bidhannagar, Kolkata 76 India. E-mail: S.Das@gsi.de Study of event by event fluctuations of thermodynamic quantities offer us more insight about the hot and dense
More informationRecent STAR Jet Results of the High-Energy Spin Physics Program at RHIC
Recent STAR Jet Results of the High-Energy Spin Physics Program at RHIC Daniel L. Olvitt Jr. Temple University E-mail: daniel.olvitt@temple.edu The production of jets from polarized proton+proton collisions
More informationSearches for Chiral Effects and Prospects for Isobaric Collisions at STAR/RHIC
Searches for Chiral Effects and Prospects for Isobaric Collisions at STAR/RHIC (for the STAR Collaboration) University of California, Los Angeles E-mail: lwen@physics.ucla.edu Searches for the chiral effects
More informationMultiplicity 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
More informationpt-inclusive 2-particle correlations; p-p, Cu-Cu, Au-Au BES
pt-inclusive 2-particle correlations; p-p, Cu-Cu, Au-Au BES Duncan May 7, 2012 1 Agenda Review of Methods Minimum-bias Jets in pp - the reference system Review 200, 62 GeV Au-Au Compare Cu-Cu to Au-Au
More informationQCD 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
More informationMulti-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
More informationA study of φ-meson spin alignment with the AMPT model
A study of φ-meson spin alignment with the AMPT model Shaowei Lan 1 Zi-Wei Lin 1,2, Shusu Shi 1, Xu Sun 1 1 Central China Normal University 2 East Carolina University Outline Introduction Modified AMPT
More informationJet 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
More informationStrangeness 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
More informationNA61/SHINE results on Le vy analysis of HBT correlation functions
Introduction NA61/SHINE results on Le vy analysis of HBT correlation functions 56th International School of Subnuclear Physics, Erice, Sicily, 2018 Barnaba s Po rfy for the NA61/SHINE Collaboration Wigner
More informationJet 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
More informationMeasurement 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
More informationContents. What Are We Looking For? Predicted D
Contents D * e S DS e Souvik Das, Anders Ryd Cornell University What Are We Looking For? Predicted D * S D S e e - Rate Decay Modes of D S Used Fitting Soft Electrons Signal Samples Background Samples
More informationAssessment of triangular flow in jet background fluctuations for Au+Au collisions First look at dijet imbalance (A J )
Assessment of triangular flow in jet background fluctuations for Au+Au collisions First look at dijet imbalance (A J ) Wayne State REU 2012 Research Advisor: Joern Putschke Research Undergraduate: Joshua
More informationHints of incomplete thermalization in RHIC data
Hints of incomplete thermalization in RHIC data Nicolas BORGHINI CERN in collaboration with R.S. BHALERAO Mumbai J.-P. BLAIZOT ECT J.-Y. OLLITRAULT Saclay N. BORGHINI p.1/30 RHIC Au Au results: the fashionable
More informationUltra-Relativistic Heavy Ion Collision Results
Ultra-Relativistic Heavy Ion Collision Results I. Overview of Effects Observed in Large Nucleus-Nucleus Collision Systems (Au+Au, Pb+Pb) High p T Hadrons Are Suppressed at LHC & RHIC Central Pb-Pb and
More informationThe 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
More informationMapping the Nuclear Matter Phase Diagram with STAR: Au+Al at 2.8 AGeV and Au+Au at 19.6 GeV
Mapping the Nuclear Matter Phase Diagram with STAR: Au+Al at 2.8 AGeV and Au+Au at 19.6 GeV Samantha G Brovko June 14, 2011 1 INTRODUCTION In ultra-relativistic heavy ion collisions a partonic state of
More informationE Update: Measurement of Two-Photon Exchange in Unpolarized Elastic Electron-Proton Scattering
E05-017 Update: Measurement of Two-Photon Exchange in Unpolarized Elastic Electron-Proton Scattering Part of the ROSEN07 Collaboration P. Solvignon, M. Johnson, J. Arrington, R. E. Segel, et al Rosenbluth
More informationExotica production with ALICE
Exotica production with ALICE Benjamin Dönigus Institut für Kernphysik Goethe Universität Frankfurt for the ALICE Collaboration Content Motivation ALICE performance Anti-Alpha Deuteron Hypertriton Search
More informationStrange Hadron Production from STAR Fixed-Target Program
Strange Hadron Production from STAR Fixed-Target Program (for the STAR Collaboration) Department of Engineering Physics, Tsinghua University, Beijing 84, China E-mail: musman_mughal@yahoo.com We report
More informationJet 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
More informationPANIC August 28, Katharina Müller on behalf of the LHCb collaboration
Measurements with electroweak bosons at LHCb PANIC August 28, 2014 on behalf of the LHCb collaboration Outline LHCb detector Measurements with electroweak bosons Motivation Z production Z plus jets, Z
More informationB. Hoeneisen. Universidad San Francisco de Quito Representing the DØ Collaboration Flavor Physics and CP violation (2013)
Status report on the like-sign dimuon charge asymmetry in p p collisions and Measurement of the direct CP asymmetry in B J/ψK and B J/ψπ decays B. Hoeneisen Universidad San Francisco de Quito Representing
More informationCoulomb Sum Rule. Huan Yao Feb 16,2010. Physics Experiment Data Analysis Summary Collaboration APS April Meeting
Coulomb Sum Rule 2010 APS April Meeting Huan Yao hyao@jlab.org Feb 16,2010 1 / 17 Physics Motivation The test of Coulomb Sum Rule is to shed light on the question of whether or not the properties of nucleons
More informationarxiv: v1 [hep-ex] 10 Jan 2019
Proceedings Event activity measurements and mid-rapidity correlations in GeV p+au collisions at SAR David Stewart for the SAR Collaboration Yale University; david.j.stewart@yale.edu Presented at Hot Quarks
More informationExclusive Central π+π- Production in Proton Antiproton Collisions at the CDF
Exclusive Central π+π- Production in Proton Antiproton Collisions at the CDF Maria Żurek Research Center Jülich University of Cologne on behalf of the CDF Collaboration XLV International Symposium on Multiparticle
More informationarxiv:hep-ex/ v1 15 Oct 2004
arxiv:hep-ex/443v 5 Oct 24 Initial results from the HARP experiment at CERN J.J. Gomez-Cadenas a a IFIC and Departamento de Fisica, Atómica y Nuclear, P.O. Box 2285, E-467 Valencia, Spain Initial results
More informationThe Quark-Gluon Plasma and the ALICE Experiment
The Quark-Gluon Plasma and the ALICE Experiment David Evans The University of Birmingham IoP Nuclear Physics Conference 7 th April 2009 David Evans IoP Nuclear Physics Conference 2009 1 Outline of Talk
More informationLow Momentum Direct Photons in Au+Au collisions at 39 GeV and 62.4 GeV measured by the PHENIX Experiment at RHIC
Low Momentum Direct Photons in Au+Au collisions at 39 GeV and 6.4 GeV measured by the PHENIX Experiment at RHIC Vladimir Khachatryan for the PHENIX Collaboration Department of Physics and Astronomy, Stony
More informationMassimo Venaruzzo for the ALICE Collaboration INFN and University of Trieste
Massimo Venaruzzo for the ALICE Collaboration INFN and University of Trieste 2 nd European Nuclear Physics Conference (EuNPC 2012) Bucharest (17-21 September 2012) Outline Resonances in pp collisions:
More informationOverview of flow results from ALICE experiment
Overview of flow results from ALICE experiment ShinIchi Esumi for the ALICE collaboration Inst. of Physics, Univ. of Tsukuba contents Multiplicity and transverse momentum distribution Source size measurement
More informationViscosity and HBT. Dariusz Miśkowiec, GSI Darmstadt Hirschegg 2010 Strongly Interacting Matter under Extreme Conditions
Viscosity and HBT Dariusz Miśkowiec, GSI Darmstadt Hirschegg 2010 Strongly Interacting Matter under Extreme Conditions attempt of CERES to extract η/s from R long (k t ) problems with this approach other
More informationRecent results from the STAR experiment on Vector Meson production in ultra peripheral AuAu collisions at RHIC.
Recent results from the STAR experiment on Vector Meson production in ultra peripheral AuAu collisions at RHIC. Leszek Adamczyk On behalf of STAR Collaboration September 7, 2016 RHIC AA: Au+Au, Cu+Cu,
More informationJet 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
More informationSoft physics results from the PHENIX experiment
Prog. Theor. Exp. Phys. 2015, 03A104 (15 pages) DOI: 10.1093/ptep/ptu069 PHYSICS at PHENIX, 15 years of discoveries Soft physics results from the PHENIX experiment ShinIchi Esumi, Institute of Physics,
More informationQCD at the Tevatron: The Production of Jets & Photons plus Jets
QCD at the Tevatron: The Production of Jets & Photons plus Jets Mike Strauss The University of Oklahoma The Oklahoma Center for High Energy Physics for the CDF and DØD Collaborations APS 2009 Denver, Colorado
More informationCharged 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
More informationMeasurement of the baryon number transport with LHCb
Measurement of the baryon number transport with LHCb Marco Adinolfi University of Bristol On behalf of the LHCb Collaboration 13 April 2011 / DIS 2011 Marco Adinolfi DIS 2011-13 April 2011 - Newport News
More informationPredictions for hadronic observables from. from a simple kinematic model
Predictions for hadronic observables from Pb + Pb collisions at sqrt(s NN ) = 2.76 TeV from a simple kinematic model Tom Humanic Ohio State University WPCF-Kiev September 14, 2010 Outline Motivation &
More informationGluon 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
More informationarxiv:nucl-ex/ v2 18 Jun 2003
Ξ and Ξ + production in Pb+Pb collisions at 4 A GeV at CERN SPS arxiv:nucl-ex/352v2 8 Jun 23. Introduction Christine Meurer for the NA49 Collaboration E-mail: Christine.Meurer@cern.ch Gesellschaft für
More informationarxiv:nucl-ex/ v2 28 May 2005
Extensive Particle Identification with TPC and TOF at the STAR Experiment arxiv:nucl-ex/556v 8 May 5 Ming Shao a,b, Olga Barannikova d, Xin Dong a,c, Yuri Fisyak b, Lijuan Ruan a,b, Paul Sorensen c, Zhangbu
More informationMassimo Venaruzzo for the ALICE Collaboration INFN and University of Trieste
Massimo Venaruzzo for the ALICE Collaboration INFN and University of Trieste 16 th International Conference in Quantum Chromo-Dynamics (QCD 2012) Montpellier (2-6 July 2012) Outline Resonances in pp collisions:
More informationKent Riley Yale University 6/25/2012
Kent Riley Yale University 6/25/2012 Motivation Azimuthal correlations of charged particles A probe for Local Parity Violation (LPV) Charge separation effects due to the Chiral Magnetic Effect (CME) should
More informationRecent highlights in the light-flavour sector from ALICE
Recent highlights in the light-flavour sector from ALICE Enrico Fragiacomo INFN - Trieste MIAMI 2016 Lago Mar Resort, Fort Lauderdale, Florida 14-19 December 2016 Ultra-Relativistic Heavy-Ion collisions
More informationMeasurement of Polarization Observables Pz, P s z and P c z in Double-Pion Photoproduction off the Proton
Measurement of Polarization Observables Pz, P s z and P c z in Double-Pion Photoproduction off the Proton Yuqing Mao Ph.D. Defense November 10, 2014 Dept. of Physics and Astronomy, USC Supported in part
More informationMeasurement 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
More informationThe balance function in azimuthal angle is a measure of the transverse flow
Physics Letters B 609 (2005) 247 251 www.elsevier.com/locate/physletb The balance function in azimuthal angle is a measure of the transverse flow Piotr Bożek The H. Niewodniczański Institute of Nuclear
More informationParticle correlations to be seen by ALICE
NUKLEONIKA 2004;49(Supplement 2):S103 S108 PROCEEDINGS Particle correlations to be seen by ALICE Jan Pluta, Zbigniew Chajęcki, Hanna P. Gos, Piotr K. Skowroński Abstract The possibilities of ALICE experiment
More informationExperimental Approach to the QCD Phase Diagram & Search for the Critical Point
Experimental Approach to the QCD Phase Diagram & Search for the Critical Point / LBNL, Berkeley The John Cramer Symposium University of Washington, Seattle, September 10-11, 2009 Outline : QCD phase diagram
More informationNeutrino Energy Reconstruction Methods Using Electron Scattering Data. Afroditi Papadopoulou Pre-conference, EINN /29/17
Neutrino Energy Reconstruction Methods Using Electron Scattering Data Afroditi Papadopoulou Pre-conference, EINN 2017 10/29/17 Outline Nuclear Physics and Neutrino Oscillations. Outstanding Challenges
More informationDo present models imply measurable (anti-)fragment production in central Au+Au at RHIC? How well can STAR measure (anti-)fragments?
Fragments and Antifragments in STAR Fragments are more sensitive to flow than particles. effects due to baryonic mean fields? Mattiello et al., PRC 55, 443 (997 Relationships between net baryon density
More informationCoherent photo-production of ρ 0 mesons in ultra-peripheral Pb-Pb collisions at the LHC measured by ALICE
EPJ Web of Conferences 8, 4) DOI:.5/ epjconf/ 4 8 C Owned by the authors, published by EDP Sciences, 4 Coherent photo-production of ρ mesons in ultra-peripheral Pb-Pb collisions at the LHC measured by
More informationPhoto-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
More informationarxiv:nucl-ex/ v1 26 Feb 2007
International Journal of Modern Physics E c World Scientific Publishing Company arxiv:nucl-ex/0702056v1 26 Feb 2007 ENERGY DEPENDENCE OF SHORT AND LONG-RANGE MULTIPLICITY CORRELATIONS IN AU+AU COLLISIONS
More informationElastic and inelastic cross section measurements with the ATLAS detector
Elastic and inelastic cross section measurements with the ATLAS detector Simon Holm Stark Niels Bohr Institute University of Copenhagen MPI@LHC 2017 December 13, 2017, Shimla, India Outline: Physics motivation.
More informationTransverse momentum spectra of identified charged hadrons with the ALICE detector in Pb-Pb collisions at the LHC
Transverse momentum spectra of identified charged hadrons with the ALICE detector in Pb-Pb collisions at the LHC for the ALICE Collaboration Museo Storico della Fisica e Centro Studi e Ricerche Enrico
More informationPartonic transport simulations of jet quenching
Partonic transport simulations of jet quenching Z. Xu, C. Greiner Institut für Theoretische Physik J. W. Goethe-Universität, Frankfurt Outline motivation introduction to the model simulations of Au+Au
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 informationHighlights of the production of (anti-) (hyper-)nuclei and exotica with ALICE at the LHC
Highlights of the production of (anti-) (hyper-)nuclei and exotica with ALICE at the LHC 06/27/2018 HYP2018 Portsmouth, VA Benjamin Dönigus for the ALICE Collaboration Institut für Kernphysik Goethe Universität
More informationRapid change of multiplicity fluctuations in system size dependence at SPS energies
The 3rd International Conference on Particle Physics and Astrophysics Volume 2018 Conference Paper Rapid change of multiplicity fluctuations in system size dependence at SPS energies Andrey Seryakov for
More informationJet 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
More informationCorrelations and fluctuations in p+p and Be+Be at the SPS energies from NA61/SHINE
Correlations and fluctuations in p+p and Be+Be at the SPS energies from NA61/SHINE Andrey Seryakov 1,a, for the NA61/SHINE Collaboration 1 Saint Petersburg State University, ul. Ulyanovskaya 1, 198504,
More informationarxiv: v1 [nucl-ex] 6 Dec 2011
Higher harmonic anisotropic flow measurements of charged particles at s NN =.76 TeV with the ALICE detector You Zhou (for the ALICE Collaboration) arxiv:111.156v1 [nucl-ex] 6 Dec 011 Nikhef, Science Park
More informationLight Nucleus Production in p+p and the BES
Light Nucleus Production in p+p and the BES W.J. Llope Rice University STAR Regional Meeting, Kolkata, India January 9-11, 2012 1 Outline Outline: Quick overview of major directions of this analysis Fragment
More informationPHENIX measurements of bottom and charm quark production
Journal of Physics: Conference Series PAPER OPEN ACCESS PHENIX measurements of bottom and charm quark production To cite this article: Timothy Rinn and PHENIX Collaboration 2018 J. Phys.: Conf. Ser. 1070
More information(pp! bbx) at 7 and 13 TeV
Measurement of (pp! bbx) at 7 and 13 TeV Matthew Kelsey on behalf of the LHCb collaboration 1 Motivation Measurements of charm and beauty cross-sections are some of the most interesting QCD studies that
More informationCharmSpectroscopy from B factories
CharmSpectroscopy from B factories (SLAC) Representing the BABAR Collaboration Charm 2010 Workshop Beijing October 23, 2010 Contact: benitezj@slac.stanford.edu Production of Charm Mesons at B-factories
More informationarxiv: 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:
More informationTwo-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
More informationQuestions for the LHC resulting from RHIC Strangeness
Questions for the LHC resulting from RHIC Strangeness Outline Intermediate p T strangeness production not jets! (Credit for work goes to Betty Abelev & Jana Bielcikova) Helen Caines Yale University ALICE
More informationCross Section of Exclusive π Electro-production from Neutron. Jixie Zhang (CLAS Collaboration) Old Dominion University Sep. 2009
Cross Section of Exclusive π Electro-production from Neutron Jixie Zhang (CLAS Collaboration) Old Dominion University Sep. 2009 Exclusive π electro-production Detect e`, π and at least ONE of the two final
More informationResults 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
More informationSmall Collision Systems at RHIC
EPJ Web of Conferences 7, (8) SQM 7 https://doi.org/.5/epjconf/87 Small Collision Systems at RHIC Norbert Novitzky, Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 79, USA
More informationMeasurements of net-particle fluctuations in Pb-Pb collisions at ALICE
Measurements of net-particle fluctuations in Pb-Pb collisions at ALICE Alice Ohlson (Universität Heidelberg) for the ALICE Collaboration Observables of Hadronization and the QCD Phase Diagram in the Cross-over
More information