Inclusive J/psi production in pp collisions at sqrt(s) = 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:10.1016/j.physletb.2012.10.078

Inclusive J/psi production in pp collisions at sqrt(s) = 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

84 Citationer (Scopus)

Abstract

The ALICE Collaboration has measured inclusive J/ψ production in pp collisions at a center-of-mass energy √s=2.76TeV at the LHC. The results presented in this Letter refer to the rapidity ranges |y|<0.9 and 2.5<y<4 and have been obtained by measuring the electron and muon pair decay channels, respectively. The integrated luminosities for the two channels are L_int^e=1.1nb^-1 and L_int^μ=19.9nb^-1, and the corresponding signal statistics are N_J/ψ^e+e-=59±14 and N_J/ψ^μ+μ-=1364±53. We present dσ_J/ψ/dy for the two rapidity regions under study and, for the forward-y range, d²σ_J/ψ/dydp_t in the transverse momentum domain 0<p_t<8GeV/c. The results are compared with previously published results at s=7TeV and with theoretical calculations.

Originalsprog	Engelsk
Tidsskrift	Physics Letters B
Vol/bind	718
Sider (fra-til)	295-306
Antal sider	18
ISSN	0370-2693
DOI	https://doi.org/10.1016/j.physletb.2012.10.078
Status	Udgivet - 5 dec. 2012

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10.1016/j.physletb.2012.10.078

Citationsformater

@article{b316bea4cfed48089fe834090b833f30,

title = "Inclusive J/psi production in pp collisions at sqrt(s) = 2.76 TeV",

abstract = "The ALICE Collaboration has measured inclusive J/ψ production in pp collisions at a center-of-mass energy √s=2.76TeV at the LHC. The results presented in this Letter refer to the rapidity ranges |y|<0.9 and 2.5inte=1.1nb-1 and Lintμ=19.9nb-1, and the corresponding signal statistics are NJ/ψe+e-=59±14 and NJ/ψμ+μ-=1364±53. We present dσJ/ψ/dy for the two rapidity regions under study and, for the forward-y range, d2σJ/ψ/dydpt in the transverse momentum domain 0t<8GeV/c. The results are compared with previously published results at s=7TeV and with theoretical calculations.",

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",

month = dec,

day = "5",

doi = "10.1016/j.physletb.2012.10.078",

language = "English",

volume = "718",

pages = "295--306",

journal = "Physics Letters B: Particle Physics, Nuclear Physics and Cosmology",

issn = "0370-2693",

publisher = "Elsevier",

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TY - JOUR

T1 - Inclusive J/psi production in pp collisions at sqrt(s) = 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 - 2012/12/5

Y1 - 2012/12/5

N2 - The ALICE Collaboration has measured inclusive J/ψ production in pp collisions at a center-of-mass energy √s=2.76TeV at the LHC. The results presented in this Letter refer to the rapidity ranges |y|<0.9 and 2.5inte=1.1nb-1 and Lintμ=19.9nb-1, and the corresponding signal statistics are NJ/ψe+e-=59±14 and NJ/ψμ+μ-=1364±53. We present dσJ/ψ/dy for the two rapidity regions under study and, for the forward-y range, d2σJ/ψ/dydpt in the transverse momentum domain 0t<8GeV/c. The results are compared with previously published results at s=7TeV and with theoretical calculations.

AB - The ALICE Collaboration has measured inclusive J/ψ production in pp collisions at a center-of-mass energy √s=2.76TeV at the LHC. The results presented in this Letter refer to the rapidity ranges |y|<0.9 and 2.5inte=1.1nb-1 and Lintμ=19.9nb-1, and the corresponding signal statistics are NJ/ψe+e-=59±14 and NJ/ψμ+μ-=1364±53. We present dσJ/ψ/dy for the two rapidity regions under study and, for the forward-y range, d2σJ/ψ/dydpt in the transverse momentum domain 0t<8GeV/c. The results are compared with previously published results at s=7TeV and with theoretical calculations.

U2 - 10.1016/j.physletb.2012.10.078

DO - 10.1016/j.physletb.2012.10.078

M3 - Journal article

SN - 0370-2693

VL - 718

SP - 295

EP - 306

JO - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology

JF - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology

ER -

Inclusive J/psi production in pp collisions at sqrt(s) = 2.76 TeV

Abstract

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