Effects of Flavor Dependence on Weak Decays of 𝐽/𝜓 and Υ

Table 8

Form factors of Υ→𝐵_𝑐 transitions.

Models		𝐴^Υ𝐵𝑐0(0)	𝐴^Υ𝐵𝑐1(0)	𝐴^Υ𝐵𝑐2(0)	𝑉^Υ𝐵𝑐(0)
This work	𝜔=0.40 GeV	0.003	0.003	0.003	0.008
	Using flavor; dependent 𝜔	0.46±0.01	0.62^+0.02−0.01	0.38^+0.06−0.09	1.61±0.01
	QCD inspired; 𝜔≡𝛼𝑠𝑚*	0.46	0.62	0.38	1.62
[7]		0.98	1.01	1.01	1.01

∗The form factors here have shown no significant change in the values, therefore, the BRs for the decays involving Υ→𝐵_𝑐 form factors for QCD inspired   𝜔 remain the same as for flavor dependent 𝜔.