Properties of Q(Q)over-bar(Q ∈ b, c) mesons in Coulomb plus power potential (CPPv)

被引:61
作者
Patel, Bhavin [1 ]
Vinodkumar, P. C. [1 ]
机构
[1] Sardar Patel Univ, Dept Phys, Vallabh Vidyanagar 388120, Gujarat, India
关键词
LEPTONIC DECAY; HADRONIC TRANSITIONS; HEAVY QUARKONIA; BOUND-STATES; CHARMONIUM; RATES; ANNIHILATION; CONSTANTS; MODEL; SPECTRUM;
D O I
10.1088/0954-3899/36/3/035003
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The decay rates and spectroscopy of the Q (Q) over bar (Q is an element of c, b) mesons are computed in nonrelativistic phenomenological quark-antiquark potential of the type V (r) = -4/3 alpha(s)/r + Ar-v with different choices v. The numerical solution of the Schrodinger equation has been used to obtain the spectroscopy of Q (Q) over bar mesons. The spin hyperfine, spin-orbit and tensor components of the one-gluon exchange interaction are employed to compute the spectroscopy of the excited S states, few low-lying P-waves and D-waves. The numerically obtained radial solutions are employed to obtain the decay constant, digamma and dileptonic decay widths. It has been observed that the predictions of the spectroscopy and the decay widths are consistent with other model predictions as well as with the known experimental values in the range of potential index 0.7 <= v <= 1.1.
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页数:24
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