Revisiting the rare H → qiqj decays in the standard model. (29th October 2020)

• Record Type: Journal Article
• Authors: Aranda, J I; González-Estrada, G; Montaño, J; Ramírez-Zavaleta, F; Tututi, E S
• Is Part Of: Journal of physics. Volume 47:Number 12(2020:Dec.)
• Publication Date: 2020-10-29
• Subjects: Higgs rare decays -- standard model -- flavor violation; Nuclear physics -- Periodicals; Particles (Nuclear physics) -- Periodicals; Physique nucléaire -- Périodiques; Particules (Physique nucléaire) -- Périodiques; Kernfysica; Elementaire deeltjes; 539.7
• DOI: 10.1088/1361-6471/abb44d
• Languages: English
• ISSNs: 0954-3899

Abstract

Abstract: We revisit the rare decays of the Higgs boson to two different quarks in the standard model (SM), which arise at the one-loop level. We perform Taylor series expansions to the complete form factors of the decay amplitudes, according to their different mass hierarchies, this allow us to take full advantage of the Glashow–Iliopoulos–Maiani (GIM) mechanism to eliminate spurious contributions and retain those that truly contribute. We found that Br( H → uc ) = 5.00 × 10 −20, Br( H → ds ) = 1.19 × 10 −11, Br( H → db ) = 5.16 × 10 −9 and Br( H → sb ) = 1.15 × 10 −7 . Our predictions for the H → uc, ds decays disagree with previous results in the literature.