Ristea, O. and Ristea, C. and Jipa, A. and Lazanu, I. and Esanu, T. and Calin, M. (2019) New results on Coulomb interaction effects in relativistic heavy ion collisions. Il nuovo cimento C, 42 (2-3). pp. 1-4. ISSN 1826-9885
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Abstract
The effects of the Coulomb interaction on charged pion production in Au+Au collisions at RHIC-BES energies are studied. From pT spectra of charged pions measured with STAR experiment, the negative-to-positive pion ratios as a function of transverse momentum are obtained. Based of these pion ratio the finalstate Coulomb interaction can be investigated. The “Coulomb kick” (a momentum change due to Coulomb interaction) and initial pion ratio for RHIC-BES energies (7.7 GeV, 11.5 GeV, 19.6 GeV, 27 GeV and 39 GeV) and various centrality classes are obtained. The energy and centrality dependence of the Coulomb kick is presented. These results are connected with the kinetic freeze-out dynamics.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 01 Dec 2020 08:25 |
| Last Modified: | 01 Dec 2020 08:25 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/20485 |
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