Antiprotons from primordial black holes
Antiprotons from primordial black holes
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DOI：
10.1051/0004-6361:20020313
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发表时间：
2002-06-01
影响因子：
6.5
通讯作者：
Taillet, R
中科院分区：
文献类型：
--
作者：
Barrau, A;Boudoul, G;Taillet, R
原始黑洞（PBH）激发了许多研究，因为它表明它们应该蒸发并产生各种粒子（霍金1974）。最近对宇宙线进行了非常精确的实验测量，对可能的形成机制和详细的蒸发过程进行了理论研究，重新引起了人们对这类天体的兴趣。本文旨在利用反质子传播模型的最新进展（Maurin et al. 2001; Donato et al. 2001）以及BESS、CAPRICE和AMS实验的新数据来约束PBH暗物质的局域量。根据扩散晕参数和发射机制的细节，我们推导出平均上限的ρ的顺序。(PBH)约为1.7 x 10（-33）g cm（-3）。
Primordial black holes (PBHs) have motivated many studies since it was shown that they should evaporate and produce all kinds of particles (Hawking 1974). Recent experimental measurements of cosmic rays with great accuracy, theoretical investigations on the possible formation mechanisms and detailed evaporation processes have revived the interest in such astrophysical objects. This article aims to use the latest developments in antiproton propagation models (Maurin et al. 2001; Donato et al. 2001) together with new data from BESS, CAPRICE and AMS experiments to constrain the local amount of PBH dark matter. Depending on the diffusion halo parameters and on the details of the emission mechanisms, we derive an average upper limit of the order of rho.(PBH) approximate to 1.7 x 10(-33) g cm(-3).