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arXiv · 0901.1934

$B_c$ to P-Wave Charmonia Transitions in Covariant Light-Front Approach

Xiao-Xia Wang·Wei Wang·Cai-Dian Lü
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Abstract

In the covariant light-front quark model, we investigate the $B_c\to h_c, χ_{c0,1,2}$ form factors. The form factors are evaluated in space-like kinematic region and are recasted to the physical region by adopting the exponential parametrization. We also study the semileptonic $B_c$ decays and find that branching fractions for the $B_c\to (h_c,χ_{c0,1,2})l\barν(l=e,μ)$ decays have the order $10^{-3}$ while branching fractions for $B_c\to (h_c,χ_{c0,1,2})τ\barν_τ$ are suppressed by one order. These predictions will be tested at the forthcoming hadron colliders.

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Xiao-Xia Wang, Wei Wang, Cai-Dian Lü. 2009-06-24. $B_c$ to P-Wave Charmonia Transitions in Covariant Light-Front Approach. https://doi.org/10.1103/physrevd.79.114018

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