Minimal Dark Matter bound states at future colliders

Journal of High Energy Physics

Alessandro Strumia¹  Natascia Vignaroli²  Salvatore Bottaro³ 

[1] Dipartimento di Fisica, Università di Pisa, Largo Bruno Pontecorvo, 3, 56127, Pisa, PI, Italia;Dipartimento di Fisica, Università di Pisa, Largo Bruno Pontecorvo, 3, 56127, Pisa, PI, Italia;INFN, Sezione di Pisa, Largo Bruno Pontecorvo, 3, 56127, Pisa, PI, Italia;Scuola Normale Superiore, P.za dei Cavalieri, 7, 56126, Pisa, PI, Italia;INFN, Sezione di Pisa, Largo Bruno Pontecorvo, 3, 56127, Pisa, PI, Italia;

关键词: Beyond Standard Model;    Dark matter;    e;    Particle and resonance production;    Spectroscopy;   

DOI  :  10.1007/JHEP06(2021)143

来源: Springer

【 摘 要 】

The hypothesis that Dark Matter is one electroweak multiplet leads to predictive candidates with multi-TeV masses that can form electroweak bound states. Bound states with the same quantum numbers as electroweak vectors are found to be especially interesting, as they can be produced resonantly with large cross sections at lepton colliders. Such bound states exist e.g. if DM is an automatically stable fermionic weak 5-plet with mass M ≈ 14 TeV such that the DM abundance is reproduced thermally. In this model, a muon collider could resolve three such bound states. Production rates are so large that details of DM spectroscopy can be probed with larger statistics: we compute the characteristic pattern of single and multiple γ lines.

【 授权许可】

CC BY