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arXiv 1802.08244hep-phastro-ph.COnucl-exnucl-th
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中子星不包括亮暗重子

Neutron stars exclude light dark baryons

David McKeen, Ann E. Nelson, Sanjay Reddy, Dake Zhou

摘要:

带有重子数和核子质量量级的奇异新粒子已经被提出,原因有很多,包括重子生成、暗物质、镜像世界和中子寿命之谜。我们表明,质量大于0.7 $M_\odot$的中子星的存在对这些粒子的严格限制,要求它们重于1.2 GeV或具有强烈的排斥性自相互作用。

英文摘要:

Exotic new particles carrying baryon number and with mass of order the nucleon mass have been proposed for various reasons including baryogenesis, dark matter, mirror worlds, and the neutron lifetime puzzle. We show that the existence of neutron stars with mass greater than 0.7 $M_\odot$ places severe constraints on such particles, requiring them to be heavier than 1.2 GeV or to have strongly repulsive self-interactions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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