SIMPly add a dark photon

Author:

Braat PieterORCID,Postma Marieke

Abstract

Abstract Pions of a dark sector gauge group can be strongly interacting massive particle (SIMP) dark matter, produced by the freeze-out of 3 → 2 interactions, with naturally large self-interactions. We study if adding a dark photon to the set-up can do it all: i) maintain thermalization with the visible sector, ii) resonantly enhance the 3 → 2 interactions, thus allowing for a perturbative pion description, and iii) provide a velocity dependent self-interaction that can affect small scale structure formation. For Nf = 3 this minimal setup is marginally excluded, as the required kinetic mixing is too small to maintain thermal equilibrium with the SM. Adding an extra dark quark opens up parameter space, and — perhaps somewhat surprisingly — we find that all bounds can be satisfied for dark pion masses mπ ∼ 250 600 MeV. Dropping the small scale structure requirement iii), a viable setup is reproduced for dark charges of αd = 0.01 − 1 and a dark pion mass mπ ≥ 30 MeV. Late time annihilations are non-negligible making the SIMP dark pion a bit WIMPy.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Reference63 articles.

1. LZ collaboration, First dark matter search results from the LUX-ZEPLIN (LZ) experiment, arXiv:2207.03764 [INSPIRE].

2. XENON collaboration, Search for inelastic scattering of WIMP dark matter in XENON1T, Phys. Rev. D 103 (2021) 063028 [arXiv:2011.10431] [INSPIRE].

3. PandaX collaboration, First search for the absorption of fermionic dark matter with the PandaX-4T experiment, Phys. Rev. Lett. 129 (2022) 161803 [arXiv:2205.15771] [INSPIRE].

4. Y. Hochberg et al., Model for thermal relic dark matter of strongly interacting massive particles, Phys. Rev. Lett. 115 (2015) 021301 [arXiv:1411.3727] [INSPIRE].

5. Y. Hochberg, E. Kuflik and H. Murayama, SIMP spectroscopy, JHEP 05 (2016) 090 [arXiv:1512.07917] [INSPIRE].

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3