Inelastic heavy quark and quarkonium ultra-incoherent photoproduction in ultra-peripheral collisions
Inelastic heavy quark and quarkonium ultra-incoherent photoproduction in ultra-peripheral collisions
复制标题
超外围碰撞中的非弹性重夸克和夸克素超非相干光产生
DOI：
10.1103/physrevc.92.054907
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发表时间：
2015-11
影响因子：
3.1
通讯作者：
Yun-De Li
中科院分区：
文献类型：
--
作者：
Jia-Qing Zhu;Zhi-Lei Ma;Chao-Yi Shi;Yun-De Li
研究了超周边碰撞中非弹性重夸克和夸克通过超非相干光子通道的光产生。将超相对论强子看作一束自由运动的基本成分，利用原子核中单个夸克的非相干光子谱，计算了Charm夸克、底夸克、J/ψ和ϒ(1s)的包含光产生截面.与文献中的相干光子通道的预言相比较，证明了超非相干光子通道对重夸克和重夸克的贡献不可忽略.
The inelastic heavy quark and quarkonium photoproduction through the ultra-incoherent photon channel.in ultra-peripheral collisions is studied. Considering the ultra-relativistic hadrons as a beam of freely moving.elementary constituents, the inclusive photoproduction cross sections for charm quark, bottom quark, J/ψ,.and ϒ(1S) are calculated by using the incoherent photon spectrum from the individual quarks in the nucleus..Comparing with the predictions of the coherent photon channel in the literatures, it is shown that the ultraincoherent.photon channel provides non-negligible contributions to the heavy quarks and heavy quarkonia.photoproduction in ultra-peripheral collisions.