Abstract
Abstract: We present a measurement of inclusive J/ψ production in p-Pb collisions at sNN=5.02(Formula presented.) TeV as a function of the centrality of the collision, as estimated from the energy deposited in the Zero Degree Calorimeters. The measurement is performed with the ALICE detector down to zero transverse momentum, pT, in the backward (−4.46 < ycms< −2.96) and forward (2.03 < ycms< 3.53) rapidity intervals in the dimuon decay channel and in the mid-rapidity region (−1.37 < ycms< 0.43) in the dielectron decay channel. The backward and forward rapidity intervals correspond to the Pb-going and p-going direction, respectively. The pT-differential J/ψ production cross section at backward and forward rapidity is measured for several centrality classes, together with the corresponding average pT and pT2 values. The nuclear modification factor is presented as a function of centrality for the three rapidity intervals, and as a function of pT for several centrality classes at backward and forward rapidity. At mid- and forward rapidity, the J/ψ yield is suppressed up to 40% compared to that in pp interactions scaled by the number of binary collisions. The degree of suppression increases towards central p-Pb collisions at forward rapidity, and with decreasing pT of the J/ψ. At backward rapidity, the nuclear modification factor is compatible with unity within the total uncertainties, with an increasing trend from peripheral to central p-Pb collisions.[Figure not available: see fulltext.]
| Original language | English |
|---|---|
| Article number | 127 |
| Pages (from-to) | 1-33 |
| Number of pages | 33 |
| Journal | Journal of High Energy Physics |
| Volume | 2015 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2015 Nov 1 |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
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Centrality dependence of inclusive J/ψ production in p-Pb collisions at (Formula presented.) TeV. / The ALICE collaboration.
In: Journal of High Energy Physics, Vol. 2015, No. 11, 127, 01.11.2015, p. 1-33.Research output: Contribution to journal › Article
TY - JOUR
T1 - Centrality dependence of inclusive J/ψ production in p-Pb collisions at (Formula presented.) TeV
AU - The ALICE collaboration
AU - Adam, J.
AU - Adamová, D.
AU - Aggarwal, M. M.
AU - Aglieri Rinella, G.
AU - Agnello, M.
AU - Agrawal, N.
AU - Ahammed, Z.
AU - Ahn, S. U.
AU - Aimo, I.
AU - Aiola, S.
AU - Ajaz, M.
AU - Akindinov, A.
AU - Alam, S. N.
AU - Aleksandrov, D.
AU - Alessandro, B.
AU - Alexandre, D.
AU - Alfaro Molina, R.
AU - Alici, A.
AU - Alkin, A.
AU - Almaraz, J. R.M.
AU - Alme, J.
AU - Alt, T.
AU - Altinpinar, S.
AU - Altsybeev, I.
AU - Alves Garcia Prado, C.
AU - Andrei, C.
AU - Andronic, A.
AU - Anguelov, V.
AU - Anielski, J.
AU - Antičić, T.
AU - Antinori, F.
AU - Antonioli, P.
AU - Aphecetche, L.
AU - Appelshäuser, H.
AU - Arcelli, S.
AU - Armesto, N.
AU - Arnaldi, R.
AU - Arsene, I. C.
AU - Arslandok, M.
AU - Audurier, B.
AU - Augustinus, A.
AU - Averbeck, R.
AU - Azmi, M. D.
AU - Bach, M.
AU - Badalà, A.
AU - Baek, Y. W.
AU - Bagnasco, S.
AU - Bailhache, R.
AU - Kang, Ju Hwan
AU - Kwon, Youngil
PY - 2015/11/1
Y1 - 2015/11/1
N2 - Abstract: We present a measurement of inclusive J/ψ production in p-Pb collisions at sNN=5.02(Formula presented.) TeV as a function of the centrality of the collision, as estimated from the energy deposited in the Zero Degree Calorimeters. The measurement is performed with the ALICE detector down to zero transverse momentum, pT, in the backward (−4.46 < ycms< −2.96) and forward (2.03 < ycms< 3.53) rapidity intervals in the dimuon decay channel and in the mid-rapidity region (−1.37 < ycms< 0.43) in the dielectron decay channel. The backward and forward rapidity intervals correspond to the Pb-going and p-going direction, respectively. The pT-differential J/ψ production cross section at backward and forward rapidity is measured for several centrality classes, together with the corresponding average pT and pT2 values. The nuclear modification factor is presented as a function of centrality for the three rapidity intervals, and as a function of pT for several centrality classes at backward and forward rapidity. At mid- and forward rapidity, the J/ψ yield is suppressed up to 40% compared to that in pp interactions scaled by the number of binary collisions. The degree of suppression increases towards central p-Pb collisions at forward rapidity, and with decreasing pT of the J/ψ. At backward rapidity, the nuclear modification factor is compatible with unity within the total uncertainties, with an increasing trend from peripheral to central p-Pb collisions.[Figure not available: see fulltext.]
AB - Abstract: We present a measurement of inclusive J/ψ production in p-Pb collisions at sNN=5.02(Formula presented.) TeV as a function of the centrality of the collision, as estimated from the energy deposited in the Zero Degree Calorimeters. The measurement is performed with the ALICE detector down to zero transverse momentum, pT, in the backward (−4.46 < ycms< −2.96) and forward (2.03 < ycms< 3.53) rapidity intervals in the dimuon decay channel and in the mid-rapidity region (−1.37 < ycms< 0.43) in the dielectron decay channel. The backward and forward rapidity intervals correspond to the Pb-going and p-going direction, respectively. The pT-differential J/ψ production cross section at backward and forward rapidity is measured for several centrality classes, together with the corresponding average pT and pT2 values. The nuclear modification factor is presented as a function of centrality for the three rapidity intervals, and as a function of pT for several centrality classes at backward and forward rapidity. At mid- and forward rapidity, the J/ψ yield is suppressed up to 40% compared to that in pp interactions scaled by the number of binary collisions. The degree of suppression increases towards central p-Pb collisions at forward rapidity, and with decreasing pT of the J/ψ. At backward rapidity, the nuclear modification factor is compatible with unity within the total uncertainties, with an increasing trend from peripheral to central p-Pb collisions.[Figure not available: see fulltext.]
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U2 - 10.1007/JHEP11(2015)127
DO - 10.1007/JHEP11(2015)127
M3 - Article
VL - 2015
SP - 1
EP - 33
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1126-6708
IS - 11
M1 - 127
ER -