Coherent J/psi photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV

B. Abelev; J. Adam; D. Adamova; A.M. Adare; M.M. Aggarwal; Ian Bearden; Hans Bøggild; Ante Bilandzic; Christian Holm Christensen; Hans Hjersing Dalsgaard; Kristjan Herlache Gulbrandsen; Jens Jørgen Gaardhøje; Alexander Colliander Hansen; Børge Svane Nielsen; Casper Nygaard; Carsten Søgaard

doi:10.1016/j.physletb.2012.11.059

Coherent J/psi photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV

B. Abelev, J. Adam, D. Adamova, A.M. Adare, M.M. Aggarwal, Ian Bearden, Hans Bøggild, Ante Bilandzic, Christian Holm Christensen, Hans Hjersing Dalsgaard, Kristjan Herlache Gulbrandsen, Jens Jørgen Gaardhøje, Alexander Colliander Hansen, Børge Svane Nielsen, Casper Nygaard, Carsten Søgaard

Eksperimentel subatomar fysik

171 Citationer (Scopus)

Abstract

The ALICE Collaboration has made the first measurement at the LHC of J/ψ photoproduction in ultra-peripheral Pb-Pb collisions at sNN=2.76TeV. The J/ψ is identified via its dimuon decay in the forward rapidity region with the muon spectrometer for events where the hadronic activity is required to be minimal. The analysis is based on an event sample corresponding to an integrated luminosity of about 55 μb^-1. The cross section for coherent J/ψ production in the rapidity interval -3.6<y<-2.6 is measured to be dσJ/ψcoh/dy=1.00±0.18(stat)-0.26+0.24(syst)mb. The result is compared to theoretical models for coherent J/ψ production and found to be in good agreement with those models which include nuclear gluon shadowing.

Originalsprog	Engelsk
Tidsskrift	Physics Letters B
Vol/bind	718
Udgave nummer	4-5
Sider (fra-til)	1273-1283
ISSN	0370-2693
DOI	https://doi.org/10.1016/j.physletb.2012.11.059
Status	Udgivet - 29 jan. 2013

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10.1016/j.physletb.2012.11.059

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Abelev, B., Adam, J., Adamova, D., Adare, A. M., Aggarwal, M. M., Bearden, I., Bøggild, H., Bilandzic, A., Christensen, C. H., Dalsgaard, H. H., Gulbrandsen, K. H., Gaardhøje, J. J., Hansen, A. C., Nielsen, B. S., Nygaard, C., & Søgaard, C. (2013). Coherent J/psi photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV. Physics Letters B, 718(4-5), 1273-1283. https://doi.org/10.1016/j.physletb.2012.11.059

Abelev, B, Adam, J, Adamova, D, Adare, AM, Aggarwal, MM, Bearden, I , Bøggild, H, Bilandzic, A, Christensen, CH, Dalsgaard, HH, Gulbrandsen, KH , Gaardhøje, JJ, Hansen, AC, Nielsen, BS, Nygaard, C & Søgaard, C 2013, 'Coherent J/psi photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV', Physics Letters B, bind 718, nr. 4-5, s. 1273-1283. https://doi.org/10.1016/j.physletb.2012.11.059

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title = "Coherent J/psi photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV",

abstract = "The ALICE Collaboration has made the first measurement at the LHC of J/ψ photoproduction in ultra-peripheral Pb-Pb collisions at sNN=2.76TeV. The J/ψ is identified via its dimuon decay in the forward rapidity region with the muon spectrometer for events where the hadronic activity is required to be minimal. The analysis is based on an event sample corresponding to an integrated luminosity of about 55 μb-1. The cross section for coherent J/ψ production in the rapidity interval -3.6",

author = "B. Abelev and J. Adam and D. Adamova and A.M. Adare and M.M. Aggarwal and Ian Bearden and Hans B{\o}ggild and Ante Bilandzic and Christensen, {Christian Holm} and Dalsgaard, {Hans Hjersing} and Gulbrandsen, {Kristjan Herlache} and Gaardh{\o}je, {Jens J{\o}rgen} and Hansen, {Alexander Colliander} and Nielsen, {B{\o}rge Svane} and Casper Nygaard and Carsten S{\o}gaard",

year = "2013",

month = jan,

day = "29",

doi = "10.1016/j.physletb.2012.11.059",

language = "English",

volume = "718",

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T1 - Coherent J/psi photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV

AU - Abelev, B.

AU - Adam, J.

AU - Adamova, D.

AU - Adare, A.M.

AU - Aggarwal, M.M.

AU - Bearden, Ian

AU - Bøggild, Hans

AU - Bilandzic, Ante

AU - Christensen, Christian Holm

AU - Dalsgaard, Hans Hjersing

AU - Gulbrandsen, Kristjan Herlache

AU - Gaardhøje, Jens Jørgen

AU - Hansen, Alexander Colliander

AU - Nielsen, Børge Svane

AU - Nygaard, Casper

AU - Søgaard, Carsten

PY - 2013/1/29

Y1 - 2013/1/29

N2 - The ALICE Collaboration has made the first measurement at the LHC of J/ψ photoproduction in ultra-peripheral Pb-Pb collisions at sNN=2.76TeV. The J/ψ is identified via its dimuon decay in the forward rapidity region with the muon spectrometer for events where the hadronic activity is required to be minimal. The analysis is based on an event sample corresponding to an integrated luminosity of about 55 μb-1. The cross section for coherent J/ψ production in the rapidity interval -3.6

AB - The ALICE Collaboration has made the first measurement at the LHC of J/ψ photoproduction in ultra-peripheral Pb-Pb collisions at sNN=2.76TeV. The J/ψ is identified via its dimuon decay in the forward rapidity region with the muon spectrometer for events where the hadronic activity is required to be minimal. The analysis is based on an event sample corresponding to an integrated luminosity of about 55 μb-1. The cross section for coherent J/ψ production in the rapidity interval -3.6

U2 - 10.1016/j.physletb.2012.11.059

DO - 10.1016/j.physletb.2012.11.059

M3 - Journal article

SN - 0370-2693

VL - 718

SP - 1273

EP - 1283

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

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

IS - 4-5

ER -

Coherent J/psi photoproduction in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV

Abstract

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