论文标题
超疗法碰撞中低质量障碍的增强
Enhancement of low-mass dileptons in ultraperipheral collisions
论文作者
论文摘要
结果表明，由于Sommerfeld-Gamow-Sakharov（SGS）因子，增强了超疗法核碰撞中低质量$ E^+E^ - $ - 成对。这种效果在创建未结合的$ e^+e^ - $的阈值附近尤其强，对两光融合中的质量低。这种对的非相关成分的库仑吸引可能导致511 keV光子的强度增加。它可以在NICA对撞机上记录，并具有一些天体物理含义。在DILEPTON生产中，可以在LHC上观察到类似效应。
It is shown that production of low-mass $e^+e^-$-pairs in ultraperipheral nuclear collisions is enhanced due to the Sommerfeld-Gamow-Sakharov (SGS) factor. This effect is especially strong near the threshold of creation of unbound $e^+e^-$-pairs with low masses in the two-photon fusion. Coulomb attraction of the non-relativistic components of such pairs may lead to the increased intensity of 511 keV photons. It can be recorded at the NICA collider and has some astrophysical implications. The analogous effect can be observed at LHC in dilepton production.
