Abstract
Abstract
Pairs of Standard Model fermions form dimension-3 singlet operators that can couple to new dark sector states. This “fermion portal” is to be contrasted with the lower-dimensional Higgs, vector and neutrino singlet portals. We characterise its distinct phenomenology and place effective field theory bounds on this framework, focusing on the case of fermion portals to a pair of light dark sector fermions. We obtain current and projected limits on the dimension-6 effective operator scale from a variety of meson decay experiments, missing energy and long-lived particle searches at colliders, as well as astrophysical and cosmological bounds. The DarkEFT public code is made available for recasting these limits, which we illustrate with various examples including an integrated- out heavy dark photon.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
Reference133 articles.
1. M. Battaglieri et al., US cosmic visions: new ideas in dark matter 2017: community report, arXiv:1707.04591 [INSPIRE].
2. J. Beacham et al., Physics beyond colliders at CERN: beyond the standard model working group report, J. Phys. G 47 (2020) 010501 [arXiv:1901.09966] [INSPIRE].
3. L. Buonocore, P. deNiverville and C. Frugiuele, The hunt for sub-GeV dark matter at neutrino facilities: a survey of past and present experiments, arXiv:1912.09346 [INSPIRE].
4. B.S. Acharya et al., The lightest visible-sector supersymmetric particle is likely to be unstable, Phys. Rev. Lett. 117 (2016) 181802 [arXiv:1604.05320] [INSPIRE].
5. B.S. Acharya et al., Categorisation and detection of dark matter candidates from string/M-theory hidden sectors, JHEP 09 (2018) 130 [arXiv:1707.04530] [INSPIRE].
Cited by
24 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