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Title: Two-pion femtoscopy in p -Pb collisions at s N N = 5.02 TeV

Journal Article · · Physical Review. C. Nuclear Physics
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Here, we report the results of the femtoscopic analysis of pairs of identical pions measured in p-Pb collisions at √sNN = 5.02 TeV. Femtoscopic radii are determined as a function of event multiplicity and pair momentum in three spatial dimensions. As in the pp collision system, the analysis is complicated by the presence of sizable background correlation structures in addition to the femtoscopic signal. The radii increase with event multiplicity and decrease with pair transverse momentum. When taken at comparable multiplicity, the radii measured in p-Pb collisions, at high multiplicity and low pair transverse momentum, are 10%–20% higher than those observed in pp collisions but below those observed in A–A collisions. The results are compared to hydrodynamic predictions at large event multiplicity as well as discussed in the context of calculations based on gluon saturation.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Contributing Organization:
ALICE Collaboration
Grant/Contract Number:
AC05-00OR22725; AC52-07NA27344
OSTI ID:
1180597
Alternate ID(s):
OSTI ID: 1338508; OSTI ID: 1864130
Report Number(s):
LLNL-JRNL-737121; PRVCAN
Journal Information:
Physical Review. C. Nuclear Physics, Vol. 91, Issue 3; ISSN 0556-2813
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 51 works
Citation information provided by
Web of Science

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Cited By (13)

First Observation of an Attractive Interaction between a Proton and a Cascade Baryon text January 2019
Novel Collective Phenomena in High-Energy Proton-Proton and Proton-Nucleus Collisions text January 2015
Collective flow and hydrodynamics in large and small systems at the LHC journal June 2017
Particle identification in ALICE: a Bayesian approach journal May 2016
One-dimensional charged kaon femtoscopy in p -Pb collisions at s NN = 5.02 TeV journal August 2019
First Observation of an Attractive Interaction between a Proton and a Cascade Baryon journal September 2019
From Heavy-Ion Collisions to Compact Stars: Equation of State and Relevance of the System Size text January 2018
From Heavy-Ion Collisions to Compact Stars: Equation of State and Relevance of the System Size journal January 2018
A femtoscopic correlation analysis tool using the Schrödinger equation (CATS) journal May 2018
Event-shape and multiplicity dependence of freeze-out radii in pp collisions at $ \sqrt{s} $ = 7 TeV text January 2019
Bose–Einstein Correlations in pp and pPb Collisions at LHCb † journal April 2019
Event-shape and multiplicity dependence of freeze-out radii in pp collisions at $\sqrt{\textit s}=7$ TeV text January 2019
Nuclear coalescence from correlation functions journal April 2019


Figures / Tables (12)