Nuclear effects in J/ψ suppression

Capella, A.; Casado, Julio; Pajares, C.; Ramallo, Alfonso V.; Vân, J. Trân Thanh

doi:10.1016/0370-2693(88)91521-3

Cited by 100 publications

(43 citation statements)

References 14 publications

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“…These include nuclear absorption [21][22][23][24], modifications of parton distribution functions in nuclei (shadowing) [25][26][27][28][29], gluon saturation [30][31][32][33][34], and in-medium energy loss [35,36]. For a review of these cold-medium effects see Ref.…”

Section: Introductionmentioning

confidence: 99%

Measurement of differentialJ/ψproduction cross sections and forward-backward ratios inp + Pbcollisions with the ATLAS detector

Aad¹,

Abbott²,

Abdallah³

et al. 2015

Phys. Rev. C

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Measurements of differential cross sections for J /ψ production in p + Pb collisions at √ s NN = 5.02 TeV at the CERN Large Hadron Collider with the ATLAS detector are presented. The data set used corresponds to an integrated luminosity of 28.1 nb −1 . The J /ψ mesons are reconstructed in the dimuon decay channel over the transverse momentum range 8 < p T < 30 GeV and over the center-of-mass rapidity range −2.87 < y * < 1.94. Prompt J /ψ are separated from J /ψ resulting from b-hadron decays through an analysis of the distance between the J /ψ decay vertex and the event primary vertex. The differential cross section for production of nonprompt J /ψ is compared to a FONLL calculation that does not include nuclear effects. Forward-backward production ratios are presented and compared to theoretical predictions. These results complement previously published results by covering a region of higher transverse momentum and more central rapidity. They thus constrain the kinematic dependence of nuclear modifications of charmonium and b-quark production in p + Pb collisions.

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Section: Introductionmentioning

confidence: 99%

Measurement of differentialJ/ψproduction cross sections and forward-backward ratios inp + Pbcollisions with the ATLAS detector

Aad¹,

Abbott²,

Abdallah³

et al. 2015

Phys. Rev. C

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“…no phase transition -were proposed. In the first one, known as nuclear absorption [3] [4], the cc pair wave packet produced inside the nucleus, is modified by nuclear collisions in such a way that it does not project into J/ψ but into open charm. It was shown that the absorptive cross-section σ abs needed to explain the A-dependence of J/ψ production in pA collisions also does explain the suppression found in nucleus-nucleus.…”

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confidence: 99%

“…For the nuclear absorption we adopt the formalism of refs. [3,4]. For simplicity, we use the exponential form of the J/ψ suppression given in ref.…”

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confidence: 99%

and ψ′ suppression in heavy ion collisions

Capella¹,

Kaǐdalov²,

Akil³

et al. 1997

Physics Letters B

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We study the combined effect of nuclear absorption and final state interaction with co-moving hadrons on the J/ψ and ψ ′ suppression in proton-nucleus and nucleus-nucleus collisions. We show that a reasonable description of the experimental data can be achieved with theoretically meaningful values of the cross-sections involved and without introducing any discontinuity in the J/ψ or ψ ′ survival probabilities.

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“…The normal suppression in Fig. 4 has been explained [22] as a final state interaction. The produced J/ψ-state or its precursor can get absorbed in the nuclear matter (of the target and beam).…”

Section: J/ψ Suppressionmentioning

confidence: 93%

Quark-gluon plasma: Status of heavy ion physics

Gavai

2000

Pramana - J Phys

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Abstract. Lattice quantum chromodynamics (QCD), defined on a discrete space time lattice, leads to a spectacular non-perturbative prediction of a new state of matter, called quark-gluon plasma (QGP), at sufficiently high temperatures or equivalently large energy densities. The experimental programs of CERN, Geneva and BNL, New York of relativistic heavy ion collisions are expected to produce such energy densities, thereby providing us a chance to test the above prediction. After a brief introduction of the necessary theoretical concepts, I will present a critical review of the experimental results already obtained by the various experiments in order to examine whether QGP has already been observed by them.

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Nuclear effects in J/ψ suppression

Cited by 100 publications

References 14 publications

Measurement of differentialJ/ψproduction cross sections and forward-backward ratios inp + Pbcollisions with the ATLAS detector

Measurement of differentialJ/ψproduction cross sections and forward-backward ratios inp + Pbcollisions with the ATLAS detector

and ψ′ suppression in heavy ion collisions

Quark-gluon plasma: Status of heavy ion physics

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