A new measurement of 
                
                  
                
                $J/\psi$
               suppression in Pb-Pb collisions at 158 GeV per nucleon

Alessandro, B.; Ramos, S.; Saturnini, P.; Drapier, O.; Willis, N.; Comets, M. P.; Kluberg, L.; Alexa, C.; Sonderegger, P.; Wu, T.; Sigaudo, F.; Macciotta, P.; Dellacasa, G.; Piccotti, A.; Jouan, D.; Tarrago, X.; Golubeva, M.; Giubellino, P.; Sitta, M.; Grigoryan, A.; Gulkanyan, H.; Petiau, P.; Topilskaya, N.; Diţǎ, S.; Pizzi, J.R.; Kurepin, A.; Karavicheva, T.; Cheynis, B.; Grigoryan, S.; Chiavassa, E.; Arnaldi, R.; Beolè, S.; Masera, M.; Guber, F.F.; Ramello, L.; Cicalò, C.; Prino, F.; Force, P.; Marco, N. De; Romana, A.; Vercellin, E.; Marzari‐Chiesa, A.; Scomparin, E.; Falco, A. De; Quintans, C.; Guichard, A.; Atayan, M.; Castor, J.; Santos, H.; Puddu, G.; Serci, S.; Idzik, M.; Chaurand, B.; Borges, G.; Shahoyan, R.; Devaux, A.; Cormick, M. Mac; Monteno, M.; Boldea, V.; Bornec, Y. Le; Constantinescu, S.; Musso, A.; Gerschel, C.; Riccati, L.; Usai, G. L.; Castanier, C.; Fargeix, J.; Masoni, A.; Gonin, M.; Bordalo, P.; Villatte, L.; Cortese, P.; Lourenço, C.; Gallio, M.

doi:10.1140/epjc/s2004-02107-9

Cited by 268 publications

(38 citation statements)

References 51 publications

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“…Observations of a larger J=c and c ð2SÞ suppression in heavy-ion collisions with respect to proton-nucleus collisions were reported by the NA38 [9], NA50 [10,11], and NA60 [12] fixed-target experiments at the Super Proton Synchrotron (SPS), respectively, in sulfur-uranium, leadlead, and indium-indium collisions, at center-of-mass energies per nucleon pair ( ffiffiffiffiffiffiffiffi s NN p ) of about 20 GeV. The PHENIX experiment, at the Relativistic Heavy Ion Collider (RHIC), extended the J=c suppression measurements to Au-Au collisions at ffiffiffiffiffiffiffiffi s NN p ¼ 200 GeV [13].…”

mentioning

confidence: 82%

Indications of Suppression of ExcitedΥStates in Pb-Pb Collisions atsNN=2.76 TeV

Chatrchyan¹,

Khachatryan²,

Sirunyan³

et al. 2011

Phys. Rev. Lett.

178

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A comparison of the relative yields of Ç resonances in the þ À decay channel in Pb-Pb and pp collisions at a center-of-mass energy per nucleon pair of 2.76 TeV is performed with data collected with the CMS detector at the LHC. Using muons of transverse momentum above 4 GeV=c and pseudorapidity below 2.4, the double ratio of the Çð2SÞ and Çð3SÞ excited states to the Çð1SÞ ground state in Pb-Pb and pp collisions, ½Çð2S þ 3SÞ=Çð1SÞ Pb-Pb =½Çð2S þ 3SÞ=Çð1SÞ pp , is found to be 0:31 þ0:19 À0:15 ðstatÞ AE 0:03ðsystÞ. The probability to obtain the measured value, or lower, if the true double ratio is unity, is calculated to be less than 1%.

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mentioning

confidence: 82%

Indications of Suppression of ExcitedΥStates in Pb-Pb Collisions atsNN=2.76 TeV

Chatrchyan¹,

Khachatryan²,

Sirunyan³

et al. 2011

Phys. Rev. Lett.

178

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“…In the charmonium sector, a significant suppression of the J/ψ yield has been observed at SPS [10][11][12] 2.76 TeV) energies. A qualitative description of the results can be obtained assuming that in addition to the dissociation by colour screening, a regeneration process takes place for high-energy collisions.…”

Section: Introductionmentioning

confidence: 99%

Suppression of ϒ(1S) at forward rapidity in Pb–Pb collisions at sNN
Abelev¹,
Adam²,
Adamová³
et al. 2014
Physics Letters B
88
3
76
0
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Suppression of Υ (1S) at forward rapidity in Pb-Pb collisions at √ s NN = 2.76 TeV .ALICE Collaboration a r t i c l e i n f o a b s t r a c tWe report on the measurement of the inclusive Υ (1S) production in Pb-Pb collisions at √ s NN = 2.76 TeV carried out at forward rapidity (2.5 < y < 4) and down to zero transverse momentum using its μ + μ − decay channel with the ALICE detector at the Large Hadron Collider. A strong suppression of the inclusive Υ (1S) yield is observed with respect to pp collisions scaled by the number of independent nucleonnucleon collisions. The nuclear modification factor, for events in the 0-90% centrality range, amounts to 0.30 ± 0.05(stat) ± 0.04(syst). The observed Υ (1S) suppression tends to increase with the centrality of the collision and seems more pronounced than in corresponding mid-rapidity measurements. Our results are compared with model calculations, which are found to underestimate the measured suppression and fail to reproduce its rapidity dependence.(http://creativecommons.org/licenses/by/3.0/). Funded by SCOAP 3 .Υ states to be regenerated in the medium is much smaller due to the lower production cross section of bb pairs [29]. However, the feed-down from higher mass bottomonia (between 40% and 50%for Υ (1S) [30]) complicates the data interpretation. Furthermore, the suppression due to the QGP must be disentangled from that due to Cold Nuclear Matter (CNM) effects (such as nuclear modification of the parton distribution functions or break-up of the quarkonium state in CNM) which, as of now, are not accurately known neither at RHIC energies [24] nor in the forward rapidity regions probed at LHC. At RHIC, the inclusive Υ (1S + 2S + 3S) production has been measured in Au-Au collisions at mid-rapidity http://dx.

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“…In the pure melting scenario, the relative production of ψ(2S) with respect to J/ψ is expected to be very small at the LHC [4], which is not the case if recombination occurs [16,17]. J/ψ suppression was observed experimentally in the most central heavy-nucleus collisions at the SPS [18,19], RHIC [20][21][22][23] and LHC [24][25][26][27][28], ranging from a center-of-mass energy per nucleon pair ( √ s NN ) of about 17 GeV to 2.76 TeV. The ψ(2S) suppression was measured at the SPS [29] and the LHC [30].…”

Section: Introductionmentioning

confidence: 99%

Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in Pb-Pb collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV

Adam¹,

Adamová²,

Aggarwal³

et al. 2016

J. High Energ. Phys.

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The production of J/ψ and ψ(2S) was studied with the ALICE detector in Pb-Pb collisions at the LHC. The measurement was performed at forward rapidity (2.5 < y < 4) down to zero transverse momentum (p t ) in the dimuon decay channel. Inclusive J/ψ yields were extracted in different centrality classes and the centrality dependence of the average p t is presented. The J/ψ suppression, quantified with the nuclear modification factor (R AA ), was measured as a function of centrality, transverse momentum and rapidity. Comparisons with similar measurements at lower collision energy and theoretical models indicate that the J/ψ production is the result of an interplay between color screening and recombination mechanisms in a deconfined partonic medium, or at its hadronization. Results on the ψ(2S) suppression are provided via the ratio of ψ(2S) over J/ψ measured in pp and Pb-Pb collisions.

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A new measurement of $J/\psi$ suppression in Pb-Pb collisions at 158 GeV per nucleon

Cited by 268 publications

References 51 publications

Indications of Suppression of ExcitedΥStates in Pb-Pb Collisions atsNN=2.76 TeV

Indications of Suppression of ExcitedΥStates in Pb-Pb Collisions atsNN=2.76 TeV

Suppression of ϒ(1S) at forward rapidity in Pb–Pb collisions at sNN
Abelev¹,
Adam²,
Adamová³
et al. 2014
Physics Letters B
88
3
76
0
View full text Add to dashboard Cite

Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in Pb-Pb collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV

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A new measurement of $J/\psi$ suppression in Pb-Pb collisions at 158 GeV per nucleon

Cited by 268 publications

References 51 publications

Indications of Suppression of ExcitedΥStates in Pb-Pb Collisions atsNN=2.76 TeV

Indications of Suppression of ExcitedΥStates in Pb-Pb Collisions atsNN=2.76 TeV

Suppression of ϒ(1S) at forward rapidity in Pb–Pb collisions at sNNAbelev1, Adam2, Adamová3 et al. 2014Physics Letters B883760View full textAdd to dashboardCite

Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in Pb-Pb collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV

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Product

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About

Suppression of ϒ(1S) at forward rapidity in Pb–Pb collisions at sNN
Abelev¹,
Adam²,
Adamová³
et al. 2014
Physics Letters B
88
3
76
0
View full text Add to dashboard Cite