金一金碰撞中由双光子过程产生的软双轻子

原子核物理评论

金一金碰撞中由双光子过程产生的软双轻子

傅永平, 李云德. 2012: 金一金碰撞中由双光子过程产生的软双轻子, 原子核物理评论, 29(3): 238-243.

引用本文:

傅永平, 李云德. 2012: 金一金碰撞中由双光子过程产生的软双轻子, 原子核物理评论, 29(3): 238-243.

2012: Soft Dilepton Production in Au-Au Collisions by Two-photon Processes, Nuclear Physics Review, 29(3): 238-243.

Citation:

2012: Soft Dilepton Production in Au-Au Collisions by Two-photon Processes, Nuclear Physics Review, 29(3): 238-243.

Soft Dilepton Production in Au-Au Collisions by Two-photon Processes

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。
- 双光子相互作用 /
- 相对论重离子碰撞 /
- 双轻子产生
Abstract: 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.