Υ ( n S )‎ → B c ⁎ π , B c ⁎ K Decays with Perturbative QCD Approach

الملخص EN

Besides the traditional strong and electromagnetic decay modes, Υ ( n S ) meson can also decay through the weak interactions within the standard model of elementary particle.

With anticipation of copious Υ ( n S ) data samples at the running LHC and coming SuperKEKB experiments, the two-body nonleptonic bottom-changing Υ ( n S ) → B c ⁎ π , B c ⁎ K decays ( n = 1,2 , 3 ) are investigated with perturbative QCD approach firstly.

The absolute branching ratios for Υ ( n S ) → B c ⁎ π and B c ⁎ K decays are estimated to reach up to about 1 0 - 10 and 1 0 - 11 , respectively, which might possibly be measured by the future experiments.