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Journal articles
Higher harmonic flow coefficients of identified hadrons in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV
J. Adam
Laurent Aphecetche
1
B. Audurier
1
A. Baldisseri
2
Guillaume Batigne
1
I. Belikov
3
H. Borel
2
J. Castillo Castellanos
2
J.L. Charvet
2
C. Cheshkov
4
B. Cheynis
4
L. Ducroux
4
B. Erazmus
1
Magali Estienne
1
V.J.G. Feuillard
2, 5
A. Francisco
1
Marie Germain
1
B. Hippolyte
3
C. Kuhn
3
A. Lardeux
2
A. Maire
3
Gines Martinez Garcia
1
L. Molnar
3
H. Pereira Da Costa
2
Philippe Pillot
1
A. Rakotozafindrabe
2
L. Ronflette
1
Y. Schutz
1
Alexandre Shabetai
1
Diego Stocco
1
B. Teyssier
4
R. Tieulent
4
A. Uras
4
R. Vernet
6
V. Barret
5
N. Bastid
5
A. Batista Camejo
5
P. Crochet
5
P. Dupieux
5
S. Li
5
X. Lopez
5
F. Manso
5
S. Porteboeuf-Houssais
5
P. Rosnet
5
B. Vulpescu
5
G. Conesa Balbastre
7
J. Faivre
7
C. Furget
7
R. Guernane
7
C. Silvestre
7
A. Vauthier
7
Z. Conesa Del Valle
8
I. Das
8
B. Espagnon
8
C. Hadjidakis
8
I. Lakomov
8
C. Suire
8
J. D. Tapia Takaki
8
M. Tarhini
8
L. Valencia Palomo
8
J. Adam
Author
Laurent Aphecetche 1
Mail :
Author IdHAL : laurent-aphecetche IdRef : https://www.idref.fr/113847653 ORCID : https://orcid.org/0000-0001-7662-3878
B. Audurier 1
Author
A. Baldisseri 2
Author
Guillaume Batigne 1
Mail :
Author IdHAL : guillaume-batigne ORCID : https://orcid.org/0000-0001-8638-6300
I. Belikov 3
Author
H. Borel 2
Author
J. Castillo Castellanos 2
Author
B. Erazmus 1
Author
Magali Estienne 1
Mail :
Author IdHAL : magali-estienne arXiv : https://arxiv.org/a/estienne ORCID : https://orcid.org/0000-0003-0687-5580
V.J.G. Feuillard 2, 5
Author
A. Francisco 1
Author
Marie Germain 1
Mail :
Author IdHAL : marie-germain ORCID : https://orcid.org/0000-0001-7382-1609
B. Hippolyte 3
Author
C. Kuhn 3
Author
A. Lardeux 2
Author
A. Maire 3
Author
Gines Martinez Garcia 1
Mail :
Author IdHAL : gines-martinez ORCID : https://orcid.org/0000-0002-8657-6742
L. Molnar 3
Author
H. Pereira Da Costa 2
Author
Philippe Pillot 1
Mail :
Author IdHAL : ppillot ORCID : https://orcid.org/0000-0002-9067-0803
A. Rakotozafindrabe 2
Author
L. Ronflette 1
Author
Y. Schutz 1
Author
Alexandre Shabetai 1
Mail :
Author IdHAL : alexandre-shabetai ORCID : https://orcid.org/0000-0003-3069-726X
Diego Stocco 1
Mail :
Author IdHAL : diego-stocco ORCID : https://orcid.org/0000-0002-5377-5163
B. Teyssier 4
Author
R. Tieulent 4
Author
1
SUBATECH - Laboratoire SUBATECH Nantes (4, rue Alfred Kastler - 44070 Nantes Cedex 03 - France)
- Mines Nantes - Mines Nantes (La Chantrerie - 4, rue Alfred Kastler - BP 20722 - 44307 Nantes cedex 3 - France)
- UN - Université de Nantes (1, quai de Tourville - BP 13522 - 44035 Nantes cedex 1 - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR6457 (France)
2
IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (CEA Saclay
F-91191 Gif sur Yvette cedex - France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/IRFU (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- Université Paris-Saclay (Espace Technologique, Bat. Discovery - RD 128 - 2e ét., 91190 Saint-Aubin - France)
3
DRS-IPHC - Département Recherches Subatomiques (23 rue du Loess - BP28 67037 Strasbourg cedex 2 - France)
- IPHC - Institut Pluridisciplinaire Hubert Curien (23 rue Loess - BP 28 67037 Strasbourg Cedex - France)
- UNISTRA - Université de Strasbourg (4 rue Blaise Pascal - CS 90032 - 67081 Strasbourg cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR7178 (France)
4
IPNL - Institut de Physique Nucléaire de Lyon (Campus LyonTech-la Doua
Bâtiment Paul DIRAC
4 Rue Enrico Fermi
69622 Villeurbanne Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5822 (France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- UCBL - Université Claude Bernard Lyon 1 (43, boulevard du 11 novembre 1918, 69622 Villeurbanne cedex - France)
- Université de Lyon (92 rue Pasteur - CS 30122, 69361 Lyon Cedex 07 - France)
5
LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand (Campus des Cézeaux / 24 avenue des Landais / BP 80026 / 63171 Aubière Cedex - France)
- UBP - Université Blaise Pascal - Clermont-Ferrand 2 (34, avenue Carnot - BP 185 / 63006 Clermont-Ferrand cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR6533 (France)
6
CC-IN2P3 - Centre de Calcul de l'IN2P3 (Domaine scientifique de La Doua
43 bd du 11 Novembre 1918
69622 Villeurbanne Cedex - France)
7
LPSC - Laboratoire de Physique Subatomique et de Cosmologie (53 avenue des Martyrs - 38026 Grenoble Cedex - France)
- Grenoble INP [2007-2019] - Institut polytechnique de Grenoble - Grenoble Institute of Technology [2007-2019] (46 avenue Félix Viallet 38031 Grenoble Cedex 1 - France)
- Institut Polytechnique de Grenoble - Grenoble Institute of Technology (France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- UJF - Université Joseph Fourier - Grenoble 1 (BP 53 - 38041 Grenoble Cedex 9 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5821 (France)
8
IPNO - Institut de Physique Nucléaire d'Orsay (IPN - 15, rue Georges Clemenceau - 91406 ORSAY CEDEX - France)
- CNRS - Centre National de la Recherche Scientifique : UMR8608 (France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- UP11 - Université Paris-Sud - Paris 11 (Bâtiment 300 - 91405 Orsay cedex - France)
Abstract : The elliptic, triangular, quadrangular and pentagonal anisotropic flow coefficients for $\pi^{\pm}$, $\mathrm{K}^{\pm}$ and p+$\overline{\mathrm{p}}$ in Pb-Pb collisions at $\sqrt{s_\mathrm{{NN}}} = 2.76$ TeV were measured with the ALICE detector at the Large Hadron Collider. The results were obtained with the Scalar Product method, correlating the identified hadrons with reference particles from a different pseudorapidity region. Effects not related to the common event symmetry planes (non-flow) were estimated using correlations in pp collisions and were subtracted from the measurement. The obtained flow coefficients exhibit a clear mass ordering for transverse momentum ($p_{\mathrm{T}}$) values below $\approx$ 3 GeV/$c$. In the intermediate $p_{\mathrm{T}}$ region ($3 < p_{\mathrm{T}} < 6$ GeV/$c$), particles group at an approximate level according to the number of constituent quarks, suggesting that coalescence might be the relevant particle production mechanism in this region. The results for $p_{\mathrm{T}} < 3$ GeV/$c$ are described fairly well by a hydrodynamical model (iEBE-VISHNU) that uses initial conditions generated by A Multi-Phase Transport model (AMPT) and describes the expansion of the fireball using a value of 0.08 for the ratio of shear viscosity to entropy density ($\eta/s$), coupled to a hadronic cascade model (UrQMD). Finally, expectations from AMPT alone fail to quantitatively describe the measurements for all harmonics throughout the measured transverse momentum region. However, the comparison to the AMPT model highlights the importance of the late hadronic rescattering stage to the development of the observed mass ordering at low values of $p_{\mathrm{T}}$ and of coalescence as a particle production mechanism for the particle type grouping at intermediate values of $p_{\mathrm{T}}$ for all harmonics.
Document type :
Journal articles
Complete list of metadatas
http://hal.in2p3.fr/in2p3-01334579
Contributor : Sylvie Flores <>
Submitted on : Tuesday, June 21, 2016 - 8:03:10 AM
Last modification on : Thursday, July 9, 2020 - 9:42:56 AM
Contributor : Sylvie Flores <>
Submitted on : Tuesday, June 21, 2016 - 8:03:10 AM
Last modification on : Thursday, July 9, 2020 - 9:42:56 AM
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Identifiers
- HAL Id : in2p3-01334579, version 1
- ARXIV : 1606.06057
- DOI : 10.1007/JHEP09(2016)164
Collections
IN2P3 | IPNL | LPC-CLERMONT | CNRS | DSM-IRFU | DRS-IPHC | IPHC | UNIV-NANTES | CEA | SUBATECH | CEA-UPSAY | PRES_CLERMONT | LPSC | UGA | IPNO | UNIV-PARIS-SACLAY | UNIV-LYON1 | CEA-DRF | SITE-ALSACE | IMT-ATLANTIQUE | SUBATECH-PLASMA | IP2I | UDL | GEPI
Citation
J. Adam, Laurent Aphecetche, B. Audurier, A. Baldisseri, Guillaume Batigne, et al.. Higher harmonic flow coefficients of identified hadrons in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV. Journal of High Energy Physics, Springer Verlag (Germany), 2016, 09, pp.164. ⟨10.1007/JHEP09(2016)164⟩. ⟨in2p3-01334579⟩
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