Nuclear parton density modifications from low-mass lepton pair production at the LHC

被引：11

作者：

Brandt, M. ^{[1
]}

Klasen, M. ^{[1
]}

Koenig, F. ^{[1
]}

机构：

[1] Univ Munster, Inst Theoret Phys, D-48149 Munster, Germany

来源：

NUCLEAR PHYSICS A | 2014年 / 927卷

关键词：

Nuclear parton densities; Heavy-ion collisions at the LHC; BOSON PRODUCTION; PROMPT PHOTONS; DISTRIBUTIONS; COLLISIONS; PROBE;

D O I：

10.1016/j.nuclphysa.2014.03.024

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

In this article, we investigate the potential of low-mass lepton pair production in proton ion collisions at the LHC to constrain nuclear modifications of parton densities. Similarly to prompt photon production, the transverse momentum spectrum is shown to be dominated by the QCD Compton process, but has virtually no fragmentation or isolation uncertainties. Depending on the orientation of the proton and ion beams and on the use of central or forward detector components, all interesting regions of nuclear effects (shadowing, antishadowing, isospin and EMC effects) can be probed. Ratios of cross sections allow to eliminate theoretical scale and bare-proton parton density errors as well as many experimental systematic uncertainties. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：78 / 90

页数：13

共 31 条

[1] Measurement of angular correlations in Drell-Yan lepton pairs to probe Z/γ* boson transverse momentum at √s=7 TeV with the ATLAS detector
Aad, G.
Abajyan, T.
Abbott, B.
Abdallah, J.
Khalek, S. Abdel
Abdelalim, A. A.
Abdinov, O.
Aben, R.
Abi, B.
Abolins, M.
AbouZeid, O. S.
Abramowicz, H.
Abreu, H.
Acharya, B. S.
Adamczyk, L.
Adams, D. L.
Addy, T. N.
Adelman, J.
Adomeit, S.
Adragna, P.
Adye, T.
Aefsky, S.
Aguilar-Saavedra, J. A.
Agustoni, M.
Ahlen, S. P.
Ahles, F.
Ahmad, A.
Ahsan, M.
Aielli, G.
Akesson, T. P. A.
Akimoto, G.
Akimov, A. V.
Alam, M. A.
Albert, J.
Albrand, S.
Aleksa, M.
Aleksandrov, I. N.
Alessandria, F.
Alexa, C.
Alexander, G.
Alexandre, G.
Alexopoulos, T.
Alhroob, M.
Aliev, M.
Alimonti, G.
Alison, J.
Allbrooke, B. M. M.
Allison, L. J.
Allport, P. P.
Allwood-Spiers, S. E.
[J]. PHYSICS LETTERS B, 2013, 720 (1-3) : 32 - 51
[2] Abelev B.B., ARXIV13086726NUCLEX
[3] [Anonymous], CMSPASHIN12017
[4] [Anonymous], JHEP
[5] Arleo F., 2011, JHEP, V1104, P055, DOI [10.1007/JHEP04(2011)055, DOI 10.1007/JHEP04(2011)055]
[6] Measuring gluon shadowing with prompt photons at RHIC and LHC
Arleo, Francois
Gousset, Thierry
[J]. PHYSICS LETTERS B, 2008, 660 (03) : 181 - 187
[7] J/ψ and ψ(2S) production in Pb-Pb collisions with the ALICE Muon Spectrometer at the LHC
Arnaldi, Roberta
[J]. NUCLEAR PHYSICS A, 2013, 904 : 595C - 598C
[8] Baumann C, 2012, EPJ WEB CONF, V36, DOI [10.1051/epjconf/201233600003, 10.1051/epjconf/20123600003]
[9] Massive lepton pairs as a prompt photon surrogate
Berger, EL
Gordon, LE
Klasen, M
[J]. PHYSICAL REVIEW D, 1998, 58 (07):
[10] Spin dependence of massive lepton pair production in proton-proton collisions
Berger, EL
Gordon, LE
Klasen, M
[J]. PHYSICAL REVIEW D, 2000, 62 (01) : 1 - 12

← 1 2 3 4 →