论文标题
中微子对歼灭（$ν{\barν} \ to e^-e^+$）
Neutrino pair annihilation ($ν{\bar ν}\to e^-e^+$) in the presence of quintessence surrounding a black hole
论文作者
论文摘要
与标准的Schwarzschild和Kerr几何形状相比，引入了用于解释宇宙加速的典型场可能会影响黑洞周围的时空的几何形状。在此框架中，我们研究了中微子对在电子恒星表面附近的电子散齿对（$ν{\barν} \ to e^-e^+$）中，尤其是在存在质量领域的情况下，尤其是集中在Schwarzschild的几何形状上。后者的效果是增加最小光子球半径（$ r_ {ph} $），以这种方式增加的最大能量沉积速率接近$ r_ {ph} $。事实证明，速率比一般相对性框架中计算的速率大几个数量级。这些结果可能为生成GRB的生成提供了有效的机制，并导致对典型模型参数的限制。
Quintessence fields, introduced to explain the speed-up of the Universe, might affect the geometry of spacetime surrounding black holes, as compared to the standard Schwarzschild and Kerr geometries. In this framework, we study the neutrino pairs annihilation into electron-positron pairs ($ν{\bar ν}\to e^-e^+$) near the surface of a neutron star, focusing, in particular, on the Schwarzschild-like geometry in presence of quintessence fields. The effect of the latter is to increase the minimum photon-sphere radius ($R_{ph}$), increasing in such a way the maximum energy deposition rate near to $R_{ph}$. The rate turns out to be several orders of magnitude greater than the rate computed in the framework of General Relativity. These results might provide an efficient mechanism for the generation of GRBs and lead to constraints on the parameters of the quintessence model.
