J/¿ Suppression at Forward Rapidity in Pb-Pb Collisions at vsNN=2.76¿¿TeV

B. Abelev; Hans Bøggild; Ian Bearden; Christian Holm Christensen; Hans Hjersing Dalsgaard; Kristjan Herlache Gulbrandsen; Jens Jørgen Gaardhøje; Børge Svane Nielsen; Casper Nygaard; Carsten Søgaard

doi:10.1103/PhysRevLett.109.072301

J/¿ Suppression at Forward Rapidity in Pb-Pb Collisions at vsNN=2.76¿¿TeV

B. Abelev, Hans Bøggild, Ian Bearden, Christian Holm Christensen, Hans Hjersing Dalsgaard, Kristjan Herlache Gulbrandsen, Jens Jørgen Gaardhøje, Børge Svane Nielsen, Casper Nygaard, Carsten Søgaard

Eksperimentel subatomar fysik

213 Citationer (Scopus)

Abstract

The ALICE experiment has measured the inclusive J/ψ production in Pb-Pb collisions at √s_NN=2.76TeV down to zero transverse momentum in the rapidity range 2.5<y<4. A suppression of the inclusive J/ψ yield in Pb-Pb is observed with respect to the one measured in pp collisions scaled by the number of binary nucleon-nucleon collisions. The nuclear modification factor, integrated over the 0%-80% most central collisions, is 0.545±0.032(stat)±0.083(syst) and does not exhibit a significant dependence on the collision centrality. These features appear significantly different from measurements at lower collision energies. Models including J/ψ production from charm quarks in a deconfined partonic phase can describe our data.

Originalsprog	Engelsk
Tidsskrift	Physical Review Letters
Vol/bind	109
Udgave nummer	7
Sider (fra-til)	072301
Antal sider	11
ISSN	0031-9007
DOI	https://doi.org/10.1103/PhysRevLett.109.072301
Status	Udgivet - 16 aug. 2012

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10.1103/PhysRevLett.109.072301

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title = "J/¿ Suppression at Forward Rapidity in Pb-Pb Collisions at vsNN=2.76¿¿TeV",

abstract = "The ALICE experiment has measured the inclusive J/ψ production in Pb-Pb collisions at √sNN=2.76TeV down to zero transverse momentum in the rapidity range 2.5",

author = "B. Abelev and Hans B{\o}ggild and Ian Bearden and Christensen, {Christian Holm} and Dalsgaard, {Hans Hjersing} and Gulbrandsen, {Kristjan Herlache} and Gaardh{\o}je, {Jens J{\o}rgen} and Nielsen, {B{\o}rge Svane} and Casper Nygaard and Carsten S{\o}gaard",

year = "2012",

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doi = "10.1103/PhysRevLett.109.072301",

language = "English",

volume = "109",

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T1 - J/¿ Suppression at Forward Rapidity in Pb-Pb Collisions at vsNN=2.76¿¿TeV

AU - Abelev, B.

AU - Bøggild, Hans

AU - Bearden, Ian

AU - Christensen, Christian Holm

AU - Dalsgaard, Hans Hjersing

AU - Gulbrandsen, Kristjan Herlache

AU - Gaardhøje, Jens Jørgen

AU - Nielsen, Børge Svane

AU - Nygaard, Casper

AU - Søgaard, Carsten

PY - 2012/8/16

Y1 - 2012/8/16

N2 - The ALICE experiment has measured the inclusive J/ψ production in Pb-Pb collisions at √sNN=2.76TeV down to zero transverse momentum in the rapidity range 2.5

AB - The ALICE experiment has measured the inclusive J/ψ production in Pb-Pb collisions at √sNN=2.76TeV down to zero transverse momentum in the rapidity range 2.5

U2 - 10.1103/PhysRevLett.109.072301

DO - 10.1103/PhysRevLett.109.072301

M3 - Journal article

C2 - 23006362

SN - 0031-9007

VL - 109

SP - 072301

JO - Physical Review Letters

JF - Physical Review Letters

IS - 7

ER -

J/¿ Suppression at Forward Rapidity in Pb-Pb Collisions at vsNN=2.76¿¿TeV

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