摘要
计算了由准相干双光子相互作用导致的低横动量双轻子产生。对于不同的质量范围,准相干双光子相互作用在低横动量区域都很重要。将计算结果与相对论重离子对撞机RHIC的PHENIX实验数据进行比较,发现随着双轻子不变质量的增加,准相干双光子过程的修正作用会更加明显。
The production of the low transverse momentum （Pv） dileptons induced by semi-cohe rent two-photon interaction is calculated. The numerical results are compared with the experimen tal data from the PHENIX, the modification of the semi-coherent two-photon interaction is re markable in the low transverse momentum region for different mass bins. We find that the contri bution of semi-coherent two-photon processes is more evident in the large dilepton mass region.
出处
《原子核物理评论》
CAS
CSCD
北大核心
2012年第3期238-243,共6页
Nuclear Physics Review
基金
National Natural Science Foundation of China(10665003,11065010)~~
关键词
双光子相互作用
相对论重离子碰撞
双轻子产生
two-photon interaction relativistic heavy ion collision
dilepton production
