TY - JOUR
T1 - On the dihadron angular correlations in forward pA collisions
AU - Stasto, Anna
AU - Wei, Shu Yi
AU - Xiao, Bo Wen
AU - Yuan, Feng
N1 - Funding Information:
This paper is based upon work partially supported by the NSFC under Grant No. 11575070 . It is also supported by the U.S. Department of Energy , Office of Science, Office of Nuclear Physics, under contracts No. DE-AC02-05CH11231 , DE-SC-0002145 , by the National Science Center, Poland , Grant No. 2015/17/B/ST2/01838 and within the framework of the TMD Topical Collaboration, by the Agence Nationale de la Recherche under the project ANR-16-CE31-0019 . We thank Akio Ogawa, Elke-Caroline Aschenauer and Cyrille Marquet for useful comments and correspondence.
Publisher Copyright:
© 2018 The Authors
PY - 2018/9/10
Y1 - 2018/9/10
N2 - Dihadron angular correlations in forward pA collisions have been considered as one of the most sensitive observables to the gluon saturation effects. In general, both parton shower effects and saturation effects are responsible for the back-to-back dihadron angular de-correlations. With the recent progress in the saturation formalism, we can incorporate the parton shower effect by adding the corresponding Sudakov factor in the saturation framework. In this paper, we carry out the first detailed numerical study in this regard, and find a very good agreement with previous RHIC pp and dAu data. This study can help us to establish a baseline in pp collisions which contains little saturation effects, and further make predictions for dihadron angular correlations in pAu collisions, which will allow to search for the signal of parton saturation.
AB - Dihadron angular correlations in forward pA collisions have been considered as one of the most sensitive observables to the gluon saturation effects. In general, both parton shower effects and saturation effects are responsible for the back-to-back dihadron angular de-correlations. With the recent progress in the saturation formalism, we can incorporate the parton shower effect by adding the corresponding Sudakov factor in the saturation framework. In this paper, we carry out the first detailed numerical study in this regard, and find a very good agreement with previous RHIC pp and dAu data. This study can help us to establish a baseline in pp collisions which contains little saturation effects, and further make predictions for dihadron angular correlations in pAu collisions, which will allow to search for the signal of parton saturation.
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U2 - 10.1016/j.physletb.2018.08.011
DO - 10.1016/j.physletb.2018.08.011
M3 - Article
AN - SCOPUS:85052088696
SN - 0370-2693
VL - 784
SP - 301
EP - 306
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -