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arXiv 0806.0447nucl-th
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利用重离子碰撞中的光子与双轻子比测量初始温度

Measuring initial temperature through photon to dilepton ratio in heavy ion collision

Jajati K. Nayak, Jan-e Alam, Sourav Sarkar, Bikash Sinha

摘要:

超相对论性重离子碰撞产生的热光子和双轻子的横动量($p_T$)分布的理论计算存在一些不确定性,因为计算这些谱需要各种输入,而这些输入还不是很清楚。本文计算了热光子与轻子对的$p_T$谱的比值,结果表明该比值对某些参数不敏感。

英文摘要:

Theoretical calculation of transverse momentum($p_T$) distribution of thermal photons and dileptons originating from ultra-relativistic heavy ion collisions suffer from several uncertainties since the evaluation of these spectra needs various inputs which are not yet known unambiguously. In the present work the ratio of the $p_T$ spectra of thermal photons to lepton pairs has been evaluated and it is shown that the ratio is insensitive to some of these parameters.

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。

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