Journal
PHYSICAL REVIEW D
Volume 98, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.98.056002
Keywords
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Funding
- National Natural Science Foundation of China [11575110, 11655002, 11735010]
- Natural Science Foundation of Shanghai [15DZ2272100.]
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The discovery of doubly heavy baryon provides us with a new platform for precisely testing the standard model and searching for new physics. As a continuation of our previous works, we investigate the flavor-changing neutral current processes of doubly heavy baryons. The light-front approach is adopted to extract the form factors, in which the two spectator quarks are viewed as a diquark. Results for form factors are then used to predict some phenomenological observables, such as the decay width and the forward-backward asymmetry. We find that most of the branching ratios for b -> s processes are 10(-8)-10(-7) and those for b -> d processes are 10(-9)-10(-8). The flavor SU(3) symmetry and symmetry breaking effects are explored. Parametric uncertainties are also investigated.
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