Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead-lead collisions at root s(NN)=2.76 TeV with the ATLAS detector

Aad, G.; Borjanović, Iris; Božović-Jelisavčić, Ivanka; Krstić, Jelena; Mamužić, Judita; Mudrinić, Mihajlo; Popović, D. S.; Reljić, D.; Sijacki, Dj.; Simić, Lj.; Vranješ, Nenad; Vranješ Milosavljević, Marija; Živković, Lada

doi:10.1016/j.physletb.2011.12.056

2012

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This Letter describes the measurement of elliptic flow of charged particles in lead-lead collisions at root s(NN) = 2.76 TeV using the ATLAS detector at the Large Hadron Collider (LHC). The results are based on an integrated luminosity of approximately 7 mu b(-1). Elliptic flow is measured over a wide region in pseudorapidity, vertical bar eta vertical bar LT 2.5, and over a broad range in transverse momentum, 0.5 LT p(T) LT 20 GeV. The elliptic flow parameter nu(2) is obtained by correlating individual tracks with the event plane measured using energy deposited in the forward calorimeters. As a function of transverse momentum, nu(2)(p(T)) reaches a maximum at p(T) of about 3 GeV. then decreases and becomes weakly dependent on p(T) above 7-8 GeV. Over the measured pseudorapidity region, nu(2) is found to be only weakly dependent on eta, with less variation than observed at lower beam energies. The results are discussed in the context of previous measurements at lower collision energies...

Ključne reči:

LHC / ATLAS / Heavy ions / Elliptic flow

Izvor:
Physics Letters B, 2012, 707, 3-4, 330-348

Finansiranje / projekti:

ANPCyT, Argentina, YerPhI, Armenia, ARC, Australia, BMWF, Austria, ANAS, Azerbaijan, SSTC, Belarus, CNPq, Brazil, FAPESP, Brazil, NSERC, Canada, NRC, Canada, CFI, Canada, CERN, CONICYT, Chile, CAS, China, MOST, China, NSFC, China, COLCIENCIAS, Colombia, MSMT CR, Czech Republic, MPO CR, Czech Republic, VSC CR, Czech Republic, DNRF, Denmark, DNSRC, Denmark, Lundbeck Foundation, Denmark, ARTEMIS, European Union, IN2P3-CNRS, France, CEA-DSM/IRFU, France, GNAS, Georgia, BMBF, Germany, DFG, Germany, HGF, Germany, MPG, Germany, AvH Foundation, Germany, GSRT, Greece, ISF, Israel, MINERVA, Israel, GIF, Israel, DIP, Israel, Benoziyo Center, Israel, INFN, Italy, MEXT, Japan, JSPS, Japan, CNRST, Morocco, FOM, Netherlands, NWO, Netherlands, RCN, Norway, MNiSW, Poland, GRICES, Portugal, FCT, Portugal, MERYS (MECTS), Romania, MES of Russia, ROSATOM, Russian Federation, JINR, MSTD, Serbia, MSSR, Slovakia, ARRS, Slovenia, MVZT, Slovenia, DST/NRF, South Africa, MICINN, Spain, SRC, Sweden, Wallenberg Foundation, Sweden, SER, Switzerland, SNSF, Switzerland, Canton of Bern, Switzerland, Canton of Geneva, Switzerland, NSC, Taiwan, TAEK, Turkey, STFC, United Kingdom, Royal Society, United Kingdom, Leverhulme Trust, United Kingdom, DOE, United States of America, NSF, United States of America, ICREA

DOI: 10.1016/j.physletb.2011.12.056

ISSN: 0370-2693; 1873-2445

WoS: 000300134500003

Scopus: 2-s2.0-84855693339

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	278

TY  - JOUR
AU  - Aad, G.
AU  - Borjanović, Iris
AU  - Božović-Jelisavčić, Ivanka
AU  - Krstić, Jelena
AU  - Mamužić, Judita
AU  - Mudrinić, Mihajlo
AU  - Popović, D. S.
AU  - Reljić, D.
AU  - Sijacki, Dj.
AU  - Simić, Lj.
AU  - Vranješ, Nenad
AU  - Vranješ Milosavljević, Marija
AU  - Živković, Lada
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4679
AB  - This Letter describes the measurement of elliptic flow of charged particles in lead-lead collisions at root s(NN) = 2.76 TeV using the ATLAS detector at the Large Hadron Collider (LHC). The results are based on an integrated luminosity of approximately 7 mu b(-1). Elliptic flow is measured over a wide region in pseudorapidity, vertical bar eta vertical bar LT 2.5, and over a broad range in transverse momentum, 0.5 LT p(T) LT 20 GeV. The elliptic flow parameter nu(2) is obtained by correlating individual tracks with the event plane measured using energy deposited in the forward calorimeters. As a function of transverse momentum, nu(2)(p(T)) reaches a maximum at p(T) of about 3 GeV. then decreases and becomes weakly dependent on p(T) above 7-8 GeV. Over the measured pseudorapidity region, nu(2) is found to be only weakly dependent on eta, with less variation than observed at lower beam energies. The results are discussed in the context of previous measurements at lower collision energies, as well as recent results from the LHC. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.
T2  - Physics Letters B
T1  - Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead-lead collisions at root s(NN)=2.76 TeV with the ATLAS detector
VL  - 707
IS  - 3-4
SP  - 330
EP  - 348
DO  - 10.1016/j.physletb.2011.12.056
ER  -

@article{
author = "Aad, G. and Borjanović, Iris and Božović-Jelisavčić, Ivanka and Krstić, Jelena and Mamužić, Judita and Mudrinić, Mihajlo and Popović, D. S. and Reljić, D. and Sijacki, Dj. and Simić, Lj. and Vranješ, Nenad and Vranješ Milosavljević, Marija and Živković, Lada",
year = "2012",
abstract = "This Letter describes the measurement of elliptic flow of charged particles in lead-lead collisions at root s(NN) = 2.76 TeV using the ATLAS detector at the Large Hadron Collider (LHC). The results are based on an integrated luminosity of approximately 7 mu b(-1). Elliptic flow is measured over a wide region in pseudorapidity, vertical bar eta vertical bar LT 2.5, and over a broad range in transverse momentum, 0.5 LT p(T) LT 20 GeV. The elliptic flow parameter nu(2) is obtained by correlating individual tracks with the event plane measured using energy deposited in the forward calorimeters. As a function of transverse momentum, nu(2)(p(T)) reaches a maximum at p(T) of about 3 GeV. then decreases and becomes weakly dependent on p(T) above 7-8 GeV. Over the measured pseudorapidity region, nu(2) is found to be only weakly dependent on eta, with less variation than observed at lower beam energies. The results are discussed in the context of previous measurements at lower collision energies, as well as recent results from the LHC. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.",
journal = "Physics Letters B",
title = "Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead-lead collisions at root s(NN)=2.76 TeV with the ATLAS detector",
volume = "707",
number = "3-4",
pages = "330-348",
doi = "10.1016/j.physletb.2011.12.056"
}

Aad, G., Borjanović, I., Božović-Jelisavčić, I., Krstić, J., Mamužić, J., Mudrinić, M., Popović, D. S., Reljić, D., Sijacki, Dj., Simić, Lj., Vranješ, N., Vranješ Milosavljević, M.,& Živković, L.. (2012). Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead-lead collisions at root s(NN)=2.76 TeV with the ATLAS detector. in Physics Letters B, 707(3-4), 330-348.
https://doi.org/10.1016/j.physletb.2011.12.056

Aad G, Borjanović I, Božović-Jelisavčić I, Krstić J, Mamužić J, Mudrinić M, Popović DS, Reljić D, Sijacki D, Simić L, Vranješ N, Vranješ Milosavljević M, Živković L. Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead-lead collisions at root s(NN)=2.76 TeV with the ATLAS detector. in Physics Letters B. 2012;707(3-4):330-348.
doi:10.1016/j.physletb.2011.12.056 .

Aad, G., Borjanović, Iris, Božović-Jelisavčić, Ivanka, Krstić, Jelena, Mamužić, Judita, Mudrinić, Mihajlo, Popović, D. S., Reljić, D., Sijacki, Dj., Simić, Lj., Vranješ, Nenad, Vranješ Milosavljević, Marija, Živković, Lada, "Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead-lead collisions at root s(NN)=2.76 TeV with the ATLAS detector" in Physics Letters B, 707, no. 3-4 (2012):330-348,
https://doi.org/10.1016/j.physletb.2011.12.056 . .