TY - JOUR
T1 - Multi gluon correlations in the color glass condensate
T2 - 2018 International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions, Hard Probes 2018
AU - Altinoluk, Tolga
AU - Armesto, Néstor
AU - Kovner, Alex
AU - Lublinsky, Michael
N1 - Funding Information:
I thank the organisers for their invitation to provide this talk, A. Rezaeian and V. Skokov for discussions, and M. Mart?nez, M. Sievert and D. Wertepny for pointing out some mistakes in the first version of [5]. The work of TA is supported by Grant No. 2017/26/M/ST2/01074 of the National Science Centre, Poland. NA was supported by Ministerio de Ciencia e Innovaci?n of Spain under projects FPA2014-58293-C2-1-P, FPA2017-83814-P and Unidad de Excelencia Mar?a de Maetzu under project MDM-2016-0692, by Xunta de Galicia (Conseller?a de Educaci?n) within the Strategic Unit AGRUP2015/11, and by FEDER. AK was supported by the NSF Nuclear Theory grant 1614640. ML was supported by the Israeli Science Foundation grant # 1635/16; AK and ML were also supported by the BSF grants #2012124 and #2014707. This work has been performed in the framework of COST Action CA15213 THOR.
Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - We compute multi gluon production at mid rapidity in proton-nucleus collisions within the Color Glass Condensate framework. We show that, in the dilute-dense limit valid for such collisions, the terms responsible for the multi gluon correlation have two origins. On the one hand, the Hanbury-Brown-Twiss interference in the final state. On the other hand, the Bose enhancement of gluons in the projectile and target wave functions, with the latter being suppressed by the number of colors with respect to the former. We also demonstrate that such correlations come from the highest order relevant correlator of Wilson lines in the target wave function, i.e., the quadrupole and sextupole for two and three gluon correlations respectively. We develop a general method for the computation of such high order correlators that captures the bulk of their contribution to the multi gluon production cross section but does not employ the approximation of a large number of colours.
AB - We compute multi gluon production at mid rapidity in proton-nucleus collisions within the Color Glass Condensate framework. We show that, in the dilute-dense limit valid for such collisions, the terms responsible for the multi gluon correlation have two origins. On the one hand, the Hanbury-Brown-Twiss interference in the final state. On the other hand, the Bose enhancement of gluons in the projectile and target wave functions, with the latter being suppressed by the number of colors with respect to the former. We also demonstrate that such correlations come from the highest order relevant correlator of Wilson lines in the target wave function, i.e., the quadrupole and sextupole for two and three gluon correlations respectively. We develop a general method for the computation of such high order correlators that captures the bulk of their contribution to the multi gluon production cross section but does not employ the approximation of a large number of colours.
UR - http://www.scopus.com/inward/record.url?scp=85072713534&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:85072713534
VL - 345
JO - Proceedings of Science
JF - Proceedings of Science
SN - 1824-8039
Y2 - 30 September 2018 through 5 October 2018
ER -