Femtoscopic and Nonfemtoscopic Two-Particle Correlations in A+A and p+p Collisions at RHIC and LHC Energies
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 p...
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| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2013/198928 |
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| author | Yu. M. Sinyukov S. V. Akkelin Iu. A. Karpenko V. M. Shapoval |
| author_facet | Yu. M. Sinyukov S. V. Akkelin Iu. A. Karpenko V. M. Shapoval |
| author_sort | Yu. M. Sinyukov |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-7e06b15e62c9411ea59272d4c7d1ffcc |
| institution | OA Journals |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
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| series | Advances in High Energy Physics |
| spelling | doaj-art-7e06b15e62c9411ea59272d4c7d1ffcc2025-08-20T02:09:04ZengWileyAdvances in High Energy Physics1687-73571687-73652013-01-01201310.1155/2013/198928198928Femtoscopic and Nonfemtoscopic Two-Particle Correlations in A+A and p+p Collisions at RHIC and LHC EnergiesYu. M. Sinyukov0S. V. Akkelin1Iu. A. Karpenko2V. M. Shapoval3Bogolyubov Institute for Theoretical Physics, Kiev 03680, UkraineBogolyubov Institute for Theoretical Physics, Kiev 03680, UkraineBogolyubov Institute for Theoretical Physics, Kiev 03680, UkraineBogolyubov Institute for Theoretical Physics, Kiev 03680, UkraineThe 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.http://dx.doi.org/10.1155/2013/198928 |
| spellingShingle | Yu. M. Sinyukov S. V. Akkelin Iu. A. Karpenko V. M. Shapoval Femtoscopic and Nonfemtoscopic Two-Particle Correlations in A+A and p+p Collisions at RHIC and LHC Energies Advances in High Energy Physics |
| title | Femtoscopic and Nonfemtoscopic Two-Particle Correlations in A+A
and p+p
Collisions at RHIC and LHC Energies |
| title_full | Femtoscopic and Nonfemtoscopic Two-Particle Correlations in A+A
and p+p
Collisions at RHIC and LHC Energies |
| title_fullStr | Femtoscopic and Nonfemtoscopic Two-Particle Correlations in A+A
and p+p
Collisions at RHIC and LHC Energies |
| title_full_unstemmed | Femtoscopic and Nonfemtoscopic Two-Particle Correlations in A+A
and p+p
Collisions at RHIC and LHC Energies |
| title_short | Femtoscopic and Nonfemtoscopic Two-Particle Correlations in A+A
and p+p
Collisions at RHIC and LHC Energies |
| title_sort | femtoscopic and nonfemtoscopic two particle correlations in a a and p p collisions at rhic and lhc energies |
| url | http://dx.doi.org/10.1155/2013/198928 |
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