Probing axions with neutron star inspirals and other stellar processes

被引：92

作者：

Hook, Anson ^{[1
,2
]}

Huang, Junwu ^{[1
,3
]}

机构：

[1] Stanford Univ, Stanford Inst Theoret Phys, Stanford, CA 94305 USA

[2] Univ Maryland, Maryland Ctr Fundamental Phys, College Pk, MD 20742 USA

[3] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2018年 / 06期

关键词：

Beyond Standard Model; CP violation; CP CONSERVATION; NUCLEAR; QUARK;

D O I：

10.1007/JHEP06(2018)036

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In certain models of a QCD axion, finite density corrections to the axion potential can result in the axion being sourced by large dense objects. There are a variety of ways to test this phenomenon, but perhaps the most surprising effect is that the axion can mediate forces between neutron stars that can be as strong as gravity. These forces can be attractive or repulsive and their presence can be detected by Advanced LIGO observations of neutron star inspirals. By a numerical coincidence, axion forces between neutron stars with gravitational strength naturally have an associated length scale of tens of kilometers or longer, similar to that of a neutron star. Future observations of neutron star mergers in Advanced LIGO can probe many orders of magnitude of axion parameter space. Because the axion is only sourced by large dense objects, the axion force evades fifth force constraints. We also outline several other ways to probe this phenomenon using electromagnetic signals associated with compact objects.

引用

页数：22

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