期刊
EUROPEAN PHYSICAL JOURNAL A
卷 53, 期 5, 页码 -出版社
SPRINGER
DOI: 10.1140/epja/i2017-12301-y
关键词
-
资金
- grant of JINR
- IFIN-HH [4543]
- Program of South Africa-JINR Collaboration
- RFBR [14-01-00647]
The energy dependence of Tsallis statistics parameters is presented for charged pions produced at beam energies ranging between 6.3 GeV and 7 TeV. It is found that deviations from Boltzmann statistics are monotonically growing with beam energy. The energy dependence of the parameters T and q of the negatively charged pions in the energy range 6.3 < root s < 7000 GeV reveals that the deviation of the transverse momentum distribution from the exponential becomes more and more pronounced as the beam energy is increased. The parameter q increases with beam energy while the temperature T slowly decreases.
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