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Title: Rapidity and centrality dependence of particle production for identified hadrons in Cu + Cu collisions at s NN = 200 GeV

Abstract

The BRAHMS collaboration has measured transverse momentum spectra of pions, kaons, protons, and antiprotons at rapidities 0 and 3 for Cu+Cu collisions at s NN = 200 GeV. As the collisions become more central the collective radial flow increases while the temperature of kinetic freeze-out decreases. The temperature is lower and the radial flow weaker at forward rapidity. Pion and kaon yields with transverse momenta between 1.5 and 2.5 GeV/c are suppressed for central collisions relative to scaled p + p collisions. This suppression, which increases as the collisions become more central, is consistent with jet quenching models and is also present with comparable magnitude at forward rapidity. At such rapidities, initial state effects may also be present and persistence of the meson suppression to high rapidity may reflect a combination of jet quenching and nuclear shadowing. In conclusion, the ratio of protons to mesons increases as the collisions become more central and is largest at forward rapidities.

Authors:
 [1]
  1. Univ. of Oslo (Norway). Department of Physics. et al.
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Org.:
BRAHMS Collaboration
OSTI Identifier:
1340370
Alternate Identifier(s):
OSTI ID: 1266411
Report Number(s):
BNL-112479-2016-JA
Journal ID: ISSN 2469-9985; R&D Project: PO 004; KB0202012; TRN: US1701777
Grant/Contract Number:  
SC00112704
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. C
Additional Journal Information:
Journal Volume: 94; Journal Issue: 1; Journal ID: ISSN 2469-9985
Publisher:
APS
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Relativistic Heavy Ion Collider

Citation Formats

Arsene, I. C. Rapidity and centrality dependence of particle production for identified hadrons in Cu + Cu collisions at sNN=200 GeV. United States: N. p., 2016. Web. doi:10.1103/PhysRevC.94.014907.
Arsene, I. C. Rapidity and centrality dependence of particle production for identified hadrons in Cu + Cu collisions at sNN=200 GeV. United States. https://doi.org/10.1103/PhysRevC.94.014907
Arsene, I. C. Wed . "Rapidity and centrality dependence of particle production for identified hadrons in Cu + Cu collisions at sNN=200 GeV". United States. https://doi.org/10.1103/PhysRevC.94.014907. https://www.osti.gov/servlets/purl/1340370.
@article{osti_1340370,
title = {Rapidity and centrality dependence of particle production for identified hadrons in Cu + Cu collisions at sNN=200 GeV},
author = {Arsene, I. C.},
abstractNote = {The BRAHMS collaboration has measured transverse momentum spectra of pions, kaons, protons, and antiprotons at rapidities 0 and 3 for Cu+Cu collisions at sNN=200 GeV. As the collisions become more central the collective radial flow increases while the temperature of kinetic freeze-out decreases. The temperature is lower and the radial flow weaker at forward rapidity. Pion and kaon yields with transverse momenta between 1.5 and 2.5 GeV/c are suppressed for central collisions relative to scaled p + p collisions. This suppression, which increases as the collisions become more central, is consistent with jet quenching models and is also present with comparable magnitude at forward rapidity. At such rapidities, initial state effects may also be present and persistence of the meson suppression to high rapidity may reflect a combination of jet quenching and nuclear shadowing. In conclusion, the ratio of protons to mesons increases as the collisions become more central and is largest at forward rapidities.},
doi = {10.1103/PhysRevC.94.014907},
journal = {Physical Review. C},
number = 1,
volume = 94,
place = {United States},
year = {Wed Jul 20 00:00:00 EDT 2016},
month = {Wed Jul 20 00:00:00 EDT 2016}
}

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Cited by: 8 works
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Works referenced in this record:

High-pT pion quenching versus anti+baryon enhancement in nucleus-nucleus collisions
journal, March 2003


The RHIC zero degree calorimeters
journal, September 2001

  • Adler, C.; Denisov, A.; Garcia, E.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 470, Issue 3
  • DOI: 10.1016/S0168-9002(01)00627-1

Centrality dependent particle production at y = 0 and y ~ 1 in Au+Au collisions at s NN = 200 GeV
journal, July 2005


Minijet scale and energy loss at relativistic energies in event generator models
journal, November 2003


The PHOBOS perspective on discoveries at RHIC
journal, August 2005


Particle spectra in Pb-Pb collisions at s NN = 2 . 76 TeV
journal, June 2012


Reconstructing the Freeze-out State in Pb+Pb Collisions at 158 A GeV/ c a
journal, February 2003

  • Tomášik, Boris; Wiedemann, Urs Achim; Heinz, Ulrich
  • Acta Physica Hungarica A) Heavy Ion Physics, Vol. 17, Issue 1
  • DOI: 10.1556/APH.17.2003.1.11

Jet fragmentation via recombination of parton showers
journal, April 2016


Identified charged particle spectra and yields in Au + Au collisions at s N N = 200 GeV
journal, March 2004


Interplay between soft and hard hadronic components for identified hadrons in relativistic heavy ion collisions
journal, March 2004


K ( 892 ) * resonance production in Au+Au and p + p collisions at s NN = 200 GeV
journal, June 2005


Correlated Emission of Hadrons from Recombination of Correlated Partons
journal, March 2005


Strange particle production in p + p collisions at s = 200 GeV
journal, June 2007


Recent results from the BRAHMS experiment
journal, August 2006


Quark–gluon plasma and color glass condensate at RHIC? The perspective from the BRAHMS experiment
journal, August 2005


Overview and Recent Results from BRAHMS
journal, November 2009


Pion, kaon, proton and anti-proton transverse momentum distributions from <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>p</mml:mi><mml:mo>+</mml:mo><mml:mi>p</mml:mi></mml:math> and <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>d</mml:mi><mml:mo>+</mml:mo><mml:mi mathvariant="normal">Au</mml:mi></mml:math> collisions at <mml:math altimg="si3.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:msub><mml:mi>s</mml:mi><mml:mrow><mml:mi>N</mml:mi><mml:mi>N</mml:mi></mml:mrow></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>200</mml:mn><mml:mtext> GeV</mml:mtext></mml:math>
journal, June 2005


The BRAHMS ring imaging Cherenkov detector
journal, January 2007

  • Debbe, R.; Jørgensen, C. E.; Olness, J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 570, Issue 1
  • DOI: 10.1016/j.nima.2006.09.100

Hadronization in Heavy-Ion Collisions: Recombination and Fragmentation of Partons
journal, May 2003


Early thermalization at RHIC
journal, May 2002


Hadron production from quark coalescence and jet fragmentation
journal, April 2005


Suppressed π 0 Production at Large Transverse Momentum in Central A u + A u Collisions at s N N = 200     G e V
journal, August 2003


Absence of Suppression in Particle Production at Large Transverse Momentum in s N N = 200     G e V d + A u Collisions
journal, August 2003


Evidence from d + A u Measurements for Final-State Suppression of High- p T Hadrons in A u + A u Collisions at RHIC
journal, August 2003


Spectra of identified high- p T π ± and p ( p¯ ) in Cu + Cu collisions at s NN = 200 GeV
journal, May 2010


Measurement of Λ and Λ ¯ Particles in A u + A u Collisions at s N N = 130     G e V
journal, August 2002


Kaon and pion production in central Au + Au collisions at sNN=62.4 GeV
journal, April 2010


Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
journal, March 2005


Hadron production in heavy ion collisions: Fragmentation and recombination from a dense parton phase
journal, October 2003


K * 0 production in Cu + Cu and Au + Au collisions at s N N = 62.4 GeV and 200 GeV
journal, September 2011


Evolution of π 0 Suppression in Au + Au Collisions from s NN = 39 to 200 GeV
journal, October 2012


Multiple Scattering, Parton Energy Loss, and Modified Fragmentation Functions in Deeply Inelastic eA Scattering
journal, October 2000


Charged hadron transverse momentum distributions in Au+Au collisions at sNN=200 GeV
journal, January 2004


Suppression of Hadrons with Large Transverse Momentum in Central A u + A u Collisions at s NN = 130 GeV
journal, December 2001


Pseudorapidity dependence of parton energy loss in relativistic heavy ion collisions
journal, December 2003


Transverse-Momentum and Collision-Energy Dependence of High- p T Hadron Suppression in A u + A u Collisions at Ultrarelativistic Energies
journal, October 2003


Interpretation of the Nonextensivity Parameter q in Some Applications of Tsallis Statistics and Lévy Distributions
journal, March 2000


Pseudorapidity Distributions of Charged Particles from Au + Au Collisions at the Maximum RHIC Energy, s NN = 200 GeV
journal, May 2002


Strangeness Enhancement in Cu-Cu and Au-Au Collisions at s N N = 200     GeV
journal, February 2012


Explaining the fine hierarchy in pion and kaon suppression at LHC: importance of fragmentation functions
journal, March 2014

  • Djordjevic, Magdalena; Djordjevic, Marko
  • Journal of Physics G: Nuclear and Particle Physics, Vol. 41, Issue 5
  • DOI: 10.1088/0954-3899/41/5/055104

Jet quenching and the p ¯ ≳ π − anomaly in heavy ion collisions at relativistic energies
journal, April 2002


Rapidity dependence of the proton-to-pion ratio in and collisions at and 200 GeV
journal, February 2010


Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead–lead collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:msub><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="normal">NN</mml:mi></mml:mrow></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>2.76</mml:mn><mml:mtext> TeV</mml:mtext></mml:math> with the ATLAS detector
journal, February 2013


Recombination of shower partons at high p T in heavy-ion collisions
journal, August 2004


The BRAHMS experiment at RHIC
journal, March 2003

  • Adamczyk, M.; Antvorskov, L.; Ashktorab, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 499, Issue 2-3
  • DOI: 10.1016/S0168-9002(02)01949-6

Centrality Dependence of High- p T Hadron Suppression in A u + A u Collisions at s N N = 130     G e V
journal, October 2002


Measurement of neutral mesons in p + p collisions at s = 200     GeV and scaling properties of hadron production
journal, March 2011


Energy Loss and Flow of Heavy Quarks in Au + Au Collisions at s NN = 200     GeV
journal, April 2007


Measurement of jet fragmentation into charged particles in pp and PbPb collisions at $ \sqrt{{{s_{\mathrm{NN}}}}} = 2.76 $ TeV
journal, October 2012

  • Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.
  • Journal of High Energy Physics, Vol. 2012, Issue 10
  • DOI: 10.1007/JHEP10(2012)087

Nuclear modification factor for charged pions and protons at forward rapidity in central Au+Au collisions at 200 GeV
journal, July 2007


Transverse-momentum distributions of charged particles produced in p ¯ p interactions at √ s ¯=630 and 1800 GeV
journal, October 1988


High- p_{T} charged hadron suppression in Au+Au collisions at sqrt[s_{NN}]=200GeV
journal, March 2004


Azimuthal anisotropy: Ridges, recombination, and breaking of quark number scaling
journal, October 2008


Evolution of the Nuclear Modification Factors with Rapidity and Centrality in d + A u Collisions at N N S = 200     G e V
journal, December 2004


Observation and studies of jet quenching in PbPb collisions at s N N = 2.76 TeV
journal, August 2011


Core-Corona Separation in Ultrarelativistic Heavy Ion Collisions
journal, April 2007


Scaling properties at freeze-out in relativistic heavy-ion collisions
journal, March 2011


Partonic coalescence in relativistic heavy ion collisions
journal, September 2003


Spectra and ratios of identified particles in Au+Au and d +Au collisions at s N N = 200 GeV
journal, August 2013


Production of Mesons and Baryons at High Rapidity and High p T in Proton-Proton Collisions at s = 200     GeV
journal, June 2007


Identified charged particles in quark and gluon jets
journal, October 2000