scholarly journals Decays of Higgs boson into pseudoscalar meson pair of different flavours

2013 ◽  
Author(s):  
Swee-Ping Chia
Keyword(s):  
Higgs Boson ◽  
Pseudoscalar Meson ◽  
Meson Pair

scholarly journals Heavy + light pseudoscalar meson semileptonic transitions

2021 ◽  
Vol 81 (12) ◽  
Author(s):  
Zhen-Ni Xu ◽  
Zhu-Fang Cui ◽  
Craig D. Roberts ◽  
Chang Xu
Keyword(s):  
Higgs Boson ◽  
Pseudoscalar Meson ◽  
Branching Fractions ◽  
Form Factors ◽  
Transition Form ◽  
Heavy Mesons ◽  
Quark Masses ◽  
Initial States ◽  
Goldstone Modes ◽  
Current Quark

AbstractA symmetry-preserving regularisation of a vector $$\times $$ × vector contact interaction (SCI) is used to deliver a unified treatment of semileptonic transitions involving $$\pi $$ π , K, $$D_{(s)}$$ D ( s ) , $$B_{(s,c)}$$ B ( s , c ) initial states. The framework is characterised by algebraic simplicity, few parameters, and the ability to simultaneously treat systems from Nambu–Goldstone modes to heavy+heavy mesons. Although the SCI form factors are typically somewhat stiff, the results are comparable with experiment and rigorous theory results. Hence, predictions for the five unmeasured $$B_{s,c}$$ B s , c branching fractions should be a reasonable guide. The analysis provides insights into the effects of Higgs boson couplings via current-quark masses on the transition form factors; and results on $$B_{(s)}\rightarrow D_{(s)}$$ B ( s ) → D ( s ) transitions yield a prediction for the Isgur–Wise function in fair agreement with contemporary data.

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