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arXiv · 2404.04337

Invisible and Semi-invisible Decays of Bottom Baryons

Yong Zheng·Jian-Nan Ding·Dong-Hao Li·Lei-Yi Li·Cai-Dian Lü·Fu-Sheng Yu
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Abstract

The similar densities of dark matter and baryons in the universe imply that they might arise from the same ultraviolet model. The B-Mesogenesis, which assumes dark matter is charged under the baryon number, attempts to simultaneously explain the origin of baryon asymmetry and dark matter in the universe. In particular, the B-Mesogenesis might induce bottom-baryon decays into invisible or semi-invisible final states, which provide a distinctive signal for probing this scenario. In this work, we systematically study the invisible decays of bottom baryons into dark matters, and semi-invisible decays of bottom baryons into a meson or a photon together with a dark matter particle. In particular, the fully invisible decay can explore the stable particles in B-Mesogenesis. Some QCD-based frameworks are used to calculate the hadronic matrix elements under the B-Mesogenesis model. We estimate the constraints on the Wilson coefficients or the product of some new physics couplings with the Wilson coefficients by the semi-invisible and invisible decays of bottom baryons at future colliders.

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Yong Zheng, Jian-Nan Ding, Dong-Hao Li, Lei-Yi Li, Cai-Dian Lü, Fu-Sheng Yu. 2024-08-19. Invisible and Semi-invisible Decays of Bottom Baryons. https://doi.org/10.1088/1674-1137%2Fad4afa

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