On the dihadron angular correlations in forward pA collisions

On the dihadron angular correlations in forward pA collisions

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 p...

Full description

Bibliographic Details
Main Authors: Anna Stasto, Shu-Yi Wei, Bo-Wen Xiao, Feng Yuan
Format: Article
Language:English
Published: Elsevier 2018-09-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269318306142
id doaj-d724e176487a4d97b4d25cc7f4169908
record_format Article
spelling doaj-d724e176487a4d97b4d25cc7f41699082020-11-25T00:43:11ZengElsevierPhysics Letters B0370-26932018-09-01784301306On the dihadron angular correlations in forward pA collisionsAnna Stasto0Shu-Yi Wei1Bo-Wen Xiao2Feng Yuan3Department of Physics, The Pennsylvania State University, University Park, PA 16802, United States; Corresponding authors.Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan 430079, China; Centre de Physique Théorique, Ecole Polytechnique, CNRS, Université Paris-Saclay, Route de Saclay, 91128 Palaiseau, France; Corresponding authors.Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan 430079, China; Centre de Physique Théorique, Ecole Polytechnique, CNRS, Université Paris-Saclay, Route de Saclay, 91128 Palaiseau, France; Corresponding authors.Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Corresponding authors.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.http://www.sciencedirect.com/science/article/pii/S0370269318306142
collection DOAJ
language English
format Article
sources DOAJ
author Anna Stasto
Shu-Yi Wei
Bo-Wen Xiao
Feng Yuan
spellingShingle Anna Stasto
Shu-Yi Wei
Bo-Wen Xiao
Feng Yuan
On the dihadron angular correlations in forward pA collisions
Physics Letters B
author_facet Anna Stasto
Shu-Yi Wei
Bo-Wen Xiao
Feng Yuan
author_sort Anna Stasto
title On the dihadron angular correlations in forward pA collisions
title_short On the dihadron angular correlations in forward pA collisions
title_full On the dihadron angular correlations in forward pA collisions
title_fullStr On the dihadron angular correlations in forward pA collisions
title_full_unstemmed On the dihadron angular correlations in forward pA collisions
title_sort on the dihadron angular correlations in forward pa collisions
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2018-09-01
description 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.
url http://www.sciencedirect.com/science/article/pii/S0370269318306142
work_keys_str_mv AT annastasto onthedihadronangularcorrelationsinforwardpacollisions
AT shuyiwei onthedihadronangularcorrelationsinforwardpacollisions
AT bowenxiao onthedihadronangularcorrelationsinforwardpacollisions
AT fengyuan onthedihadronangularcorrelationsinforwardpacollisions
_version_ 1725280013624803328

Similar Items