Constraints on Light Hidden Sector Gauge Bosons from Supernova Cooling
Constraints on Light Hidden Sector Gauge Bosons from Supernova Cooling
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发表时间：
2012-01
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通讯作者：
J. Dent;F. Ferrer;L. Krauss
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作者：
J. Dent;F. Ferrer;L. Krauss
我们得到了可能在超新星中产生新的能量损失机制的隐藏扇形规范玻色子的新界限，与先前的估计相比，质量耦合空间中的排除区域扩大了一个重要因素。在确定这样的边界时，需要同时考虑这些粒子的陷阱和可能的衰变，就像在中子和质子上的散射一样。对于饱和了当前边界的区域附近的质量和耦合，由于所有超新星在宇宙历史上的累积效应，也可能产生这样的规范玻色子的重要背景。
We derive new bounds on hidden sector gauge bosons which could produce new energy loss mechanisms in supernovae, enlarging the excluded region in mass-coupling space by a significant factor compared to earlier estimates. Both considerations of trapping and possible decay of these particles need to be incorporated when determining such bounds, as does scattering on both neutrons and protons. For masses and couplings near the region which saturates current bounds, a significant background of such gauge bosons may also be produced due to the cumulative effects of all supernovae over cosmic history.