Revisiting cosmological constraints on supersymmetric SuperWIMPs

Author:

Deshpande Meera,Hamann Jan,Sengupta DipanORCID,White Martin,Williams Anthony G.,Wong Yvonne Y. Y.

Abstract

AbstractSuperWIMPs are extremely weakly interacting massive particles that inherit their relic abundance from late decays of frozen-out parent particles. Within supersymmetric models, gravitinos and axinos represent two of the most well motivated superWIMPs. In this paper we revisit constraints on these scenarios from a variety of cosmological observations that probe their production mechanisms as well as the superWIMP kinematic properties in the early Universe. We consider in particular observables of Big Bang Nucleosynthesis and the Cosmic Microwave Background (spectral distortion and anisotropies), which limit the fractional energy injection from the late decays, as well as warm and mixed dark matter constraints derived from the Lyman-$$\alpha $$ α forest and other small-scale structure observables. We discuss complementary constraints from collider experiments, and argue that cosmological considerations rule out a significant part of the gravitino and the axino superWIMP parameter space.

Funder

ARC Centre of Excellence for Dark Matter Particle Physics

ARC Future Fellowship

Publisher

Springer Science and Business Media LLC

Reference98 articles.

1. ATLAS Collaboration, G. Aad et al., Search for pair production of squarks or gluinos decaying via sleptons or weak bosons in final states with two same-sign or three leptons with the ATLAS detector. arXiv:2307.01094 [hep-ex]

2. ATLAS Collaboration, G. Aad et al., Search for direct production of winos and higgsinos in events with two same-charge leptons or three leptons in $$pp$$ collision data at $$\sqrt{s}=13$$ TeV with the ATLAS detector. arXiv:2305.09322 [hep-ex]

3. CMS Collaboration, Search for stealth SUSY in final states with two photons, jets, and low missing transverse momentum. tech. rep., CERN, Geneva (2023). https://cds.cern.ch/record/2852182

4. ATLAS Collaboration, G. Aad et al., Search in diphoton and dielectron final states for displaced production of Higgs or $$Z$$ bosons with the ATLAS detector in $$\sqrt{s} = 13$$ TeV $$pp$$ collisions. arXiv:2304.12885 [hep-ex]

5. ATLAS Collaboration, G. Aad et al., Search for long-lived, massive particles in events with displaced vertices and multiple jets in pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector. JHEP2306, 200 (2023). https://doi.org/10.1007/JHEP06(2023)200. arXiv:2301.13866 [hep-ex]

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