Spectra and decay rates ofbb̄meson using Gaussian wave function

Using the Gaussian wave function mass spectra and decay rates of bb̄ meson are investigated in the framework of phenomenological quark anti-quark potential (coulomb plus power) model consisting of relativistic corrections to the kinetic energy term. The spin-spin, spin-orbit and tensor interactions are employed to obtain the pseudoscalar and vector meson masses. The decay constants (fP/V) are computed using the wave function at the origin. The di-gamma and di-leptonic decays of the bb̄ meson are investigated using Van-Rayan Weisskopf formula as well as in the NRQCD formalism

Study of various spectroscopic properties of theDsmeson

Spectroscopic parameters of the Ds (cs̄) meson are obtained using phenomenological quark antiquark potential(coulomb plus power) model consisting of O(1/m) correction to the potential. Within Variational scheme Gaussian wave function is employed with a hamiltonian incorporating kinematic relativistic corrections to obtain various properties such as the mass spectra, decay constants, electromagnetic transitions. The results are compared with various experimental measurement as well as other theoretical predictions

Precise measurements of the properties of the B-1(5721)(0,+) and B-2*(5747)(0,+) states and observation of B-+,B-0 pi(-,+) mass structures

Invariant mass distributions of B+pi- and B0pi+ combinations are investigated in order to study excited B mesons. The analysis is based on a data sample corresponding to 3.0 fb-1 of pp collision data, recorded by the LHCb detector at centre-of-mass energies of 7 and 8 TeV. Precise measurements of the masses and widths of the B_1(5721)^(0,+) and B_2*(5747)^(0,+) states are reported. Clear enhancements, particularly prominent at high pion transverse momentum, are seen over background in the mass range 5850--6000 MeV in both B+pi- and B0pi+ combinations. The structures are consistent with the presence of four excited B mesons, labelled B_J(5840)^(0,+) and B_J(5960)^(0,+), whose masses and widths are obtained under different hypotheses for their quantum numbers.Comment: 29 pages, 5 Figures, 8 Table

Spectroscopic properties of the B meson

Investigation of the B(bq̄); q = u, d meson properties is carried out using variational method within phenomenological quark antiquark potential(coulomb plus power) model using the Gaussian wave function. O(1/m) correction to the potential energy term and relativistic corrections to the kinetic energy term of the hamiltonian are incorporated. Spin-orbit, spin-spin and tensor interactions are employed to obtain the mass spectra. Various other properties such as the decay constants, e1 and m1 transitions are also obtaine

Spectroscopy and decay properties of B and B

A study of the spectroscopy and decay properties of the B and \ensuremath B_s mesons is carried out within the framework of the phenomenological quark-antiquark potential model using the Hydrogenic and the Gaussian wave function. The spin-hyperfine, spin-orbit and the tensor interactions are employed to obtain the pseudoscalar and vector meson masses incorporating the effect of mixing. The decay constants \ensuremath (f_{P/V}) are computed using the wave function at the origin. The leptonic branching fractions, electromagnetic transition rates and mixing parameters of the B and \ensuremath B_{s} are also calculated in this scheme. Our predictions are in good agreement with the experimental results as well as the lattice and other theoretical models