DEPENDENCE OF |V_cb| ON FERMI MOMENTUM

Abstract

The Fermi momentum Pf for the Bc meson has been estimated in the framework of the statistical model. The matrix element |Vcb| has been extracted from the lepton energy spectrum using the estimated value of the Fermi momentum, in the framework of the ACCMM model. The value of Pf for Bc meson has been estimated as Pf=1.14 GeV which is somewhat large compared to the existing estimates.

Magnetic Moments of The Baryon Anti-decuplet and Octet Pentaquark States

“…Where mD * is the mass of the diquark, mq1 , mq2 are the constituent masses of the quark flavours constituting the diquark. Fermi momentum pf has been estimated using work of Bhattacharya et al [39,40]. The radii of diquarks are given input from existing literature [41][42][43].…”

“…With mu = md = 0.360GeV and ms = 0.54GeV from [44], Λ=0.573 GeV for light sector [45] the diquark masses have been estimated for Jp = ½ + and 3/2 + using the expression (2) and are furnished in Table-1. 1.006 [39] 0.4706 0.5669 0.4287 0.5913…”

Decay properties of Diquarks and exotics

“…To estimate the decay widths we need the fermi momentum of the corresponding meson. In our previous works [19,20] we have studied the the fermi momentum of the mesons in the frame work of the statistical model and investigated the CP violating parameters. We have obtained a relation between the Table-II along with experimental values [21,24].…”

A study on P c * (4380) and P c * in the quasi particle diquark model

“…where m D 1 , m D 2 are diquark masses, m q is the antiquark mass and E S is spin term and expressed as [19,20]:…”