TY  - JOUR
A1  - Sinyukov, Yuri
A1  - Akkelin, Sergii V.
A1  - Karpenko, Iurii
A1  - Šapoval, Volodymyr Mykolajovyč
T1  - Femtoscopic and nonfemtoscopic two-particle correlations in A+A and p+p collisions at RHIC and LHC energies
T2  - Advances in high energy physics
N2  - The theoretical review of the last femtoscopy results for the systems created in ultrarelativistic A+A, p+p, and p+Pb collisions is presented. The basic model, allowing to describe the interferometry data at SPS, RHIC, and LHC, is the hydrokinetic model. The model allows one to avoid the principal problem of the particlization of the medium at nonspace-like sites of transition hypersurfaces and switch to hadronic cascade at a space-like hypersurface with nonequilibrated particle input. The results for pion and kaon interferometry scales in Pb+Pb and Au+Au collisions at LHC and RHIC are presented for different centralities. The new theoretical results as for the femtoscopy of small sources with sizes of 1-2 fm or less are discussed. The uncertainty principle destroys the standard approach of completely chaotic sources: the emitters in such sources cannot radiate independently and incoherently. As a result, the observed femtoscopy scales are reduced, and the Bose-Einstein correlation function is suppressed. The results are applied for the femtoscopy analysis of p+p collisions at √s=7 TeV LHC energy and p+Pb ones at √s=5.02 TeV. The behavior of the corresponding interferometry volumes on multiplicity is compared with what is happening for central A+A collisions. In addition the nonfemtoscopic two-pion correlations in proton-proton collisions at the LHC energies are considered, and a simple model that takes into account correlations induced by the conservation laws and minijets is analyzed.
Y1  - 2013
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/50507
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-505072
SN  - 1687-7357
SN  - 1687-7365
N1  - Copyright © 2013 Yu. M. Sinyukov et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
VL  - 7
IS  - Art. 198928
SP  - 1
EP  - 23
PB  - Hindawi
CY  - New York, NY
ER  -