M. Bleicher, D. Bandyopadhyay, E. Bratkovskaya, M. Reiter, S. Soff, H. Stöcker, M. Leeuwen, S. Bass, W. Cassing
{"title":"Transverse Pressure in Relativistic Nuclear Collisions: Evidence for Partonic Interactions?","authors":"M. Bleicher, D. Bandyopadhyay, E. Bratkovskaya, M. Reiter, S. Soff, H. Stöcker, M. Leeuwen, S. Bass, W. Cassing","doi":"10.1556/APH.24.2005.1-4.25","DOIUrl":null,"url":null,"abstract":"Transverse hadron spectra from proton–proton, proton–nucleus and nucleus–nucleus collisions from 2 A·GeV to 21.3 A·TeV are investigated within two independent transport approaches (HSD and UrQMD). For central Au+Au (Pb+Pb) collisions at energies above Elab ∼ 5 A·GeV, the measured K± transverse mass spectra have a larger inverse slope parameter than expected from the default calculations. The additional pressure — as supported by lattice QCD calculations at finite quark chemical potential μq and temperature T — might be generated by strong interactions in the early pre-hadronic/partonic phase of central Au+Au (Pb+Pb) collisions E.L. Bratkovskaya et al., Phys. Rev. C 69 (2004) 054907.","PeriodicalId":7004,"journal":{"name":"Acta Physica Hungarica","volume":"9 1","pages":"181-188"},"PeriodicalIF":0.0000,"publicationDate":"2005-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Physica Hungarica","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1556/APH.24.2005.1-4.25","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
Transverse hadron spectra from proton–proton, proton–nucleus and nucleus–nucleus collisions from 2 A·GeV to 21.3 A·TeV are investigated within two independent transport approaches (HSD and UrQMD). For central Au+Au (Pb+Pb) collisions at energies above Elab ∼ 5 A·GeV, the measured K± transverse mass spectra have a larger inverse slope parameter than expected from the default calculations. The additional pressure — as supported by lattice QCD calculations at finite quark chemical potential μq and temperature T — might be generated by strong interactions in the early pre-hadronic/partonic phase of central Au+Au (Pb+Pb) collisions E.L. Bratkovskaya et al., Phys. Rev. C 69 (2004) 054907.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
