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Journal articles
Flow dominance and factorization of transverse momentum correlations in Pb-Pb collisions at the LHC
J. Adam
I. Belikov
1
J.C. Hamon
1
B. Hippolyte
1
C. Kuhn
1
A. Maire
1
C. Roy
1
Y. Schutz
1, 2
S. Senyukov
1
A. Baldisseri
3
H. Borel
3
J. Castillo Castellanos
3
J.L. Charvet
3
V.J.G. Feuillard
3, 4
A. Lardeux
3
S. Panebianco
3
H. Pereira Da Costa
3
A. Rakotozafindrabe
3
Laurent Aphecetche
2
B. Audurier
2
Guillaume Batigne
2
B. Erazmus
2
A. Francisco
2
Marie Germain
2
A. Morreale
2
Philippe Pillot
2
Gines Martinez Garcia
2
L. Ronflette
2
Alexandre Shabetai
2
Diego Stocco
2
J. Zhu
2
C. Cheshkov
5
B. Cheynis
5
L. Ducroux
5
B. Teyssier
5
R. Tieulent
5
A. Uras
5
R. Vernet
6
G. Conesa Balbastre
7
J. Faivre
7
C. Furget
7
R. Guernane
7
C. Silvestre
7
A. Vauthier
7
H. Yokoyama
7
V. Barret
4
N. Bastid
4
A. Batista Camejo
4
P. Crochet
4
P. Dupieux
4
X. Lopez
4
F. Manso
4
S. Porteboeuf-Houssais
4
P. Rosnet
4
H. Pereira Da Costa 3
Author
A. Rakotozafindrabe 3
Author
Laurent Aphecetche 2
Mail :
Author IdHAL : laurent-aphecetche IdRef : https://www.idref.fr/113847653 ORCID : https://orcid.org/0000-0001-7662-3878
B. Audurier 2
Author
Guillaume Batigne 2
Mail :
Author IdHAL : guillaume-batigne ORCID : https://orcid.org/0000-0001-8638-6300
B. Erazmus 2
Author
A. Francisco 2
Author
Marie Germain 2
Mail :
Author IdHAL : marie-germain ORCID : https://orcid.org/0000-0001-7382-1609
A. Morreale 2
Author
Philippe Pillot 2
Mail :
Author IdHAL : ppillot ORCID : https://orcid.org/0000-0002-9067-0803
Gines Martinez Garcia 2
Mail :
Author IdHAL : gines-martinez ORCID : https://orcid.org/0000-0002-8657-6742
L. Ronflette 2
Author
Alexandre Shabetai 2
Mail :
Author IdHAL : alexandre-shabetai ORCID : https://orcid.org/0000-0003-3069-726X
Diego Stocco 2
Mail :
Author IdHAL : diego-stocco ORCID : https://orcid.org/0000-0002-5377-5163
J. Zhu 2
Author
C. Cheshkov 5
Author
S. Porteboeuf-Houssais 4
Author
P. Rosnet 4
Author
1
IPHC - Institut Pluridisciplinaire Hubert Curien (23 rue Loess - BP 28 67037 Strasbourg Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7178 (France)
- UNISTRA - Université de Strasbourg (4 rue Blaise Pascal - CS 90032 - 67081 Strasbourg cedex - France)
2
SUBATECH - Laboratoire SUBATECH Nantes (4, rue Alfred Kastler - 44070 Nantes Cedex 03 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR6457 (France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- UN - Université de Nantes (1, quai de Tourville - BP 13522 - 44035 Nantes cedex 1 - France)
- Mines Nantes - Mines Nantes (La Chantrerie - 4, rue Alfred Kastler - BP 20722 - 44307 Nantes cedex 3 - France)
3
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)
4
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)
5
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)
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)
- CNRS - Centre National de la Recherche Scientifique : UMR5821 (France)
- UJF - Université Joseph Fourier - Grenoble 1 (BP 53 - 38041 Grenoble Cedex 9 - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- Institut Polytechnique de Grenoble - Grenoble Institute of Technology (France)
- UGA - Université Grenoble Alpes (CS 40700 - 38058 Grenoble cedex - France)
- Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology (46 avenue Félix Viallet 38031 Grenoble Cedex 1 - France)
Abstract : We present the first measurement of the two-particle transverse momentum differential correlation function, $P_2\equiv\langle \Delta p_{\rm T} \Delta p_{\rm T} \rangle /\langle p_{\rm T} \rangle^2$, in Pb-Pb collisions at $\sqrt{s_{_{\rm NN}}} =$ 2.76 TeV. Results for $P_2$ are reported as a function of relative pseudorapidity ($\Delta \eta$) and azimuthal angle ($\Delta \varphi$) between two particles for different collision centralities. The $\Delta \phi$ dependence is found to be largely independent of $\Delta \eta$ for $|\Delta \eta| \geq$ 0.9. In 5% most central Pb-Pb collisions, the two-particle transverse momentum correlation function exhibits a clear double-hump structure around $\Delta \varphi = \pi$ (i.e., on the away side), which is not observed in number correlations in the same centrality range, and thus provides an indication of the dominance of triangular flow in this collision centrality. Fourier decompositions of $P_2$, studied as a function of collision centrality, show that correlations at $|\Delta \eta| \geq$ 0.9 can be well reproduced by a flow ansatz based on the notion that measured momentum correlations are strictly determined by the collective motion of the system.
Domain :
Complete list of metadatas
http://hal.in2p3.fr/in2p3-01464131
Contributor : Sylvie Flores <>
Submitted on : Friday, February 10, 2017 - 7:30:23 AM
Last modification on : Friday, April 3, 2020 - 11:44:40 AM
Contributor : Sylvie Flores <>
Submitted on : Friday, February 10, 2017 - 7:30:23 AM
Last modification on : Friday, April 3, 2020 - 11:44:40 AM
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Identifiers
- HAL Id : in2p3-01464131, version 1
- ARXIV : 1702.02665
- DOI : 10.1103/PhysRevLett.118.162302
Collections
IN2P3 | IPNL | CNRS | DSM-IRFU | DRS-IPHC | IPHC | UNIV-NANTES | CEA | SUBATECH | LPC-CLERMONT | LPSC | PRES_CLERMONT | UGA | UNIV-PARIS-SACLAY | UNIV-LYON1 | CEA-DRF | SITE-ALSACE | CEA-UPSAY | IMT-ATLANTIQUE | SUBATECH-PLASMA | IP2I | UDL | GEPI
Citation
J. Adam, I. Belikov, J.C. Hamon, B. Hippolyte, C. Kuhn, et al.. Flow dominance and factorization of transverse momentum correlations in Pb-Pb collisions at the LHC. Physical Review Letters, American Physical Society, 2017, 118, pp.162302. ⟨10.1103/PhysRevLett.118.162302⟩. ⟨in2p3-01464131⟩
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