arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 0904.3837nucl-thnucl-ex
收藏

夸克介子耦合模型中的粒子产生

Particle Production within the Quark Meson Coupling Model

P. K. Panda, D. P. Menezes, C. Providência

摘要:

夸克介子耦合模型不仅可以用于描述核物质,而且可以成功地用于核天体物理中致密星性质的描述。在热强子物质的制度中,很少有计算存在使用QMC模型,特别是当应用于粒子产额在重离子碰撞。在目前的工作中,我们确定的袋子的自由能与重子的有效质量,我们计算的粒子生产收益金+金碰撞在RHIC与QMC模型,并比较它们与以前得到的结果与其他相对论模型。一个较小的温度为火球,T=132 MeV,得到由于较小的有效重子质量的QMC预测。QMC也被应用到描述的粒子产额在SPS在铅+铅碰撞。

英文摘要:

Quark meson coupling (QMC) models can be successfully applied to the description of compact star properties in nuclear astrophysics as well as to nuclear matter. In the regime of hot hadronic matter very few calculations exist using the QMC model, in particular when applied to particle yields in heavy ion collisions. In the present work, we identify the free energy of the bag with the effective mass of the baryons and we calculate the particle production yields on a Au+Au collision at RHIC with the QMC model and compare them with results obtained previously with other relativistic models. A smaller temperature for the fireball, T=132 MeV, is obtained due to the smaller effective baryon masses predicted by QMC. QMC was also applied to the description of particle yields at SPS in Pb+Pb collisions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑