Gauged Q-ball decay rates into fermions
Gauged Q-ball decay rates into fermions
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测量 Q 球衰变成费米子的速率
DOI：
10.1103/physrevd.96.103526
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发表时间：
2017
影响因子：
5
通讯作者：
Kawasaki Masahiro
中科院分区：
文献类型：
--
作者：
Hong Jeong-Pyong;Kawasaki Masahiro
我们推导出一个规范的Q-球到费米子的衰变率，应用领先的半经典近似。我们发现，更多的粒子出来的规范的Q球的表面相比，一个整体的Q球的情况下，由于电排斥。然而，我们表明，一个规范的Q-球的衰减率是有界的，由于泡利阻塞在表面的Q-球，就像在一个全球性的Q-球的情况下。我们还发现由于Q球外的库仑势的存在，对来自Q球内部的费米子有进一步的抑制作用，我们发现它对来自Q球内部的费米子起着势垒的作用。
We derive the decay rate of a gauged Q-ball into fermions, applying the leading semiclassical approximation. We find that more particles come out from the surface of a gauged Q-ball, compared to the case of a global Q-ball, due to the electric repulsion. We show, however, that the decay rate of a gauged Q-ball is bounded from above due to the Pauli blocking at the surface of the Q-ball, just as in the case of a global Q-ball. We also find that there is a further suppression due to the Coulomb potential outside the Q-ball, which we find to play the role of a potential barrier for the fermions coming from the inside the Q-ball.