Rapidity and transverse-momentum dependence of the inclusive J/psi nuclear modification factor in p-Pb collisions at root s(NN)=5.02 TeV

J. Adam; D. Adamová; MM. Aggarwal; G. Aglieri Rinella; M. Agnello; N. Agrawal; Z. Ahammed; Irfan Ahmed; S. U. Ahn; I Aimo; Ian Bearden; Hans Bøggild; Christian Holm Christensen; Kristjan Herlache Gulbrandsen; Jens Jørgen Gaardhøje; Børge Svane Nielsen; Alexander Colliander Hansen; Ante Bilandzic; Marek Chojnacki; Valentina Zaccolo

doi:10.1007/JHEP06(2015)055

Rapidity and transverse-momentum dependence of the inclusive J/psi nuclear modification factor in p-Pb collisions at root s(NN)=5.02 TeV

J. Adam, D. Adamová, MM. Aggarwal, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, Irfan Ahmed, S. U. Ahn, I Aimo, Ian Bearden, Hans Bøggild, Christian Holm Christensen, Kristjan Herlache Gulbrandsen, Jens Jørgen Gaardhøje, Børge Svane Nielsen, Alexander Colliander Hansen, Ante Bilandzic, Marek Chojnacki, Valentina Zaccolo

Experimental Particle Physics

35 Citations (Scopus)

244 Downloads (Pure)

Abstract

Abstract: We have studied the transverse-momentum (p_T) dependence of the inclusive J/ψ production in p-Pb collisions at sNN$$ \sqrt{s_{\mathrm{NN}}} $$ = 5.02 TeV, in three center-of-mass rapidity (y_cms) regions, down to zero p_T. Results in the forward and backward rapidity ranges (2.03 < y_cms< 3.53 and −4.46 < y_cms< −2.96) are obtained by studying the J/ψ decay to μ⁺μ⁻, while the mid-rapidity region (−1.37 < y_cms< 0.43) is investigated by measuring the e⁺e⁻ decay channel. The p_T dependence of the J/ψ production cross section and nuclear modification factor are presented for each of the rapidity intervals, as well as the J/ψ mean p_T values. Forward and mid-rapidity results show a suppression of the J/ψ yield, with respect to pp collisions, which decreases with increasing p_T. At backward rapidity no significant J/ψ suppression is observed. Theoretical models including a combination of cold nuclear matter effects such as shadowing and partonic energy loss, are in fair agreement with the data, except at forward rapidity and low transverse momentum. The implications of the p-Pb results for the evaluation of cold nuclear matter effects on J/ψ production in Pb-Pb collisions are also discussed.[Figure not available: see fulltext.]

Original language	English
Article number	055
Journal	Journal of High Energy Physics (Online)
Volume	2015
Issue number	6
ISSN	1126-6708
DOIs	https://doi.org/10.1007/JHEP06(2015)055
Publication status	Published - 15 Jun 2015

Access to Document

10.1007/JHEP06(2015)055

art_10.1007_JHEP06(2015)055Final published version, 4.06 MB

Cite this

Adam, J., Adamová, D., Aggarwal, MM., Aglieri Rinella, G., Agnello, M., Agrawal, N., Ahammed, Z., Ahmed, I., U. Ahn, S., Aimo, I., Bearden, I., Bøggild, H., Christensen, C. H., Gulbrandsen, K. H., Gaardhøje, J. J., Nielsen, B. S., Hansen, A. C., Bilandzic, A., Chojnacki, M., & Zaccolo, V. (2015). Rapidity and transverse-momentum dependence of the inclusive J/psi nuclear modification factor in p-Pb collisions at root s(NN)=5.02 TeV. Journal of High Energy Physics (Online), 2015(6), [055]. https://doi.org/10.1007/JHEP06(2015)055

Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmed, I, U. Ahn, S, Aimo, I, Bearden, I , Bøggild, H , Christensen, CH , Gulbrandsen, KH , Gaardhøje, JJ , Nielsen, BS, Hansen, AC, Bilandzic, A, Chojnacki, M & Zaccolo, V 2015, 'Rapidity and transverse-momentum dependence of the inclusive J/psi nuclear modification factor in p-Pb collisions at root s(NN)=5.02 TeV', Journal of High Energy Physics (Online), vol. 2015, no. 6, 055. https://doi.org/10.1007/JHEP06(2015)055

@article{7e1cc74c7c714254872e35d456196564,

title = "Rapidity and transverse-momentum dependence of the inclusive J/psi nuclear modification factor in p-Pb collisions at root s(NN)=5.02 TeV",

abstract = "Abstract: We have studied the transverse-momentum (pT) dependence of the inclusive J/ψ production in p-Pb collisions at sNN$$ \sqrt{s_{\mathrm{NN}}} $$ = 5.02 TeV, in three center-of-mass rapidity (ycms) regions, down to zero pT. Results in the forward and backward rapidity ranges (2.03 < ycms< 3.53 and −4.46 < ycms< −2.96) are obtained by studying the J/ψ decay to μ+μ−, while the mid-rapidity region (−1.37 < ycms< 0.43) is investigated by measuring the e+e− decay channel. The pT dependence of the J/ψ production cross section and nuclear modification factor are presented for each of the rapidity intervals, as well as the J/ψ mean pT values. Forward and mid-rapidity results show a suppression of the J/ψ yield, with respect to pp collisions, which decreases with increasing pT. At backward rapidity no significant J/ψ suppression is observed. Theoretical models including a combination of cold nuclear matter effects such as shadowing and partonic energy loss, are in fair agreement with the data, except at forward rapidity and low transverse momentum. The implications of the p-Pb results for the evaluation of cold nuclear matter effects on J/ψ production in Pb-Pb collisions are also discussed.[Figure not available: see fulltext.]",

author = "J. Adam and D. Adamov{\'a} and MM. Aggarwal and {Aglieri Rinella}, G. and M. Agnello and N. Agrawal and Z. Ahammed and Irfan Ahmed and {U. Ahn}, S. and I Aimo and Ian Bearden and Hans B{\o}ggild and Christensen, {Christian Holm} and Gulbrandsen, {Kristjan Herlache} and Gaardh{\o}je, {Jens J{\o}rgen} and Nielsen, {B{\o}rge Svane} and Hansen, {Alexander Colliander} and Ante Bilandzic and Marek Chojnacki and Valentina Zaccolo",

year = "2015",

month = jun,

day = "15",

doi = "10.1007/JHEP06(2015)055",

language = "English",

volume = "2015",

journal = "Journal of High Energy Physics (Online)",

issn = "1126-6708",

publisher = "Springer",

number = "6",

}

TY - JOUR

T1 - Rapidity and transverse-momentum dependence of the inclusive J/psi nuclear modification factor in p-Pb collisions at root s(NN)=5.02 TeV

AU - Adam, J.

AU - Adamová, D.

AU - Aggarwal, MM.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmed, Irfan

AU - U. Ahn, S.

AU - Aimo, I

AU - Bearden, Ian

AU - Bøggild, Hans

AU - Christensen, Christian Holm

AU - Gulbrandsen, Kristjan Herlache

AU - Gaardhøje, Jens Jørgen

AU - Nielsen, Børge Svane

AU - Hansen, Alexander Colliander

AU - Bilandzic, Ante

AU - Chojnacki, Marek

AU - Zaccolo, Valentina

PY - 2015/6/15

Y1 - 2015/6/15

N2 - Abstract: We have studied the transverse-momentum (pT) dependence of the inclusive J/ψ production in p-Pb collisions at sNN$$ \sqrt{s_{\mathrm{NN}}} $$ = 5.02 TeV, in three center-of-mass rapidity (ycms) regions, down to zero pT. Results in the forward and backward rapidity ranges (2.03 < ycms< 3.53 and −4.46 < ycms< −2.96) are obtained by studying the J/ψ decay to μ+μ−, while the mid-rapidity region (−1.37 < ycms< 0.43) is investigated by measuring the e+e− decay channel. The pT dependence of the J/ψ production cross section and nuclear modification factor are presented for each of the rapidity intervals, as well as the J/ψ mean pT values. Forward and mid-rapidity results show a suppression of the J/ψ yield, with respect to pp collisions, which decreases with increasing pT. At backward rapidity no significant J/ψ suppression is observed. Theoretical models including a combination of cold nuclear matter effects such as shadowing and partonic energy loss, are in fair agreement with the data, except at forward rapidity and low transverse momentum. The implications of the p-Pb results for the evaluation of cold nuclear matter effects on J/ψ production in Pb-Pb collisions are also discussed.[Figure not available: see fulltext.]

AB - Abstract: We have studied the transverse-momentum (pT) dependence of the inclusive J/ψ production in p-Pb collisions at sNN$$ \sqrt{s_{\mathrm{NN}}} $$ = 5.02 TeV, in three center-of-mass rapidity (ycms) regions, down to zero pT. Results in the forward and backward rapidity ranges (2.03 < ycms< 3.53 and −4.46 < ycms< −2.96) are obtained by studying the J/ψ decay to μ+μ−, while the mid-rapidity region (−1.37 < ycms< 0.43) is investigated by measuring the e+e− decay channel. The pT dependence of the J/ψ production cross section and nuclear modification factor are presented for each of the rapidity intervals, as well as the J/ψ mean pT values. Forward and mid-rapidity results show a suppression of the J/ψ yield, with respect to pp collisions, which decreases with increasing pT. At backward rapidity no significant J/ψ suppression is observed. Theoretical models including a combination of cold nuclear matter effects such as shadowing and partonic energy loss, are in fair agreement with the data, except at forward rapidity and low transverse momentum. The implications of the p-Pb results for the evaluation of cold nuclear matter effects on J/ψ production in Pb-Pb collisions are also discussed.[Figure not available: see fulltext.]

U2 - 10.1007/JHEP06(2015)055

DO - 10.1007/JHEP06(2015)055

M3 - Journal article

SN - 1126-6708

VL - 2015

JO - Journal of High Energy Physics (Online)

JF - Journal of High Energy Physics (Online)

IS - 6

M1 - 055

ER -

Rapidity and transverse-momentum dependence of the inclusive J/psi nuclear modification factor in p-Pb collisions at root s(NN)=5.02 TeV

Abstract

Access to Document

Fingerprint

Cite this