## Search

Now showing items 31-40 of 159

#### Semileptonic transition of Sigma(b) -> Sigma mu(+)mu(-) in the family non-universal Z ' model

(IOP Publishing, 2013-08)

Using newly available form factors obtained from light-cone QCD sum rules in full theory, we study the flavor-changing neutral current transition of Sigma(b) -> Sigma mu(+)mu(-) decay in the family non-universal Z' model. ...

#### Double-lepton polarization asymmetries and branching ratio in B -> K-0(*)(1430)l(+)l(-) transition from universal extra dimension model

(Springer, 2011-01)

We investigate the B -> K-0(*)(1430)l(+)l(-) transition in the Applequist-Cheng-Dobrescu model in the presence of a universal extra dimension. In particular, we calculate double lepton polarization asymmetries and branching ...

#### Masses and decay constants of bound states containing fourth family quarks from QCD sum rules

(American Physical Society, 2011-08-04)

The heavy fourth generation of quarks that have sufficiently small mixing with the three known standard model families form hadrons. In the present work, we calculate the masses and decay constants of mesons containing ...

#### Investigation of the D (s) (*) D-s eta ((')) and B (s) (*) B-s eta ((')) vertices via QCD sum rules

(Springer, 2013-10-14)

The strong-coupling constants among mesons are very important quantities as they can provide useful information on the nature of strong interaction among hadrons as well as the QCD vacuum. In this article, we investigate ...

#### Thermal properties of D-2* (2460) and D-s2*(2573) tensor mesons using QCD sum rules

(IOP Publishing, 2014-03)

We investigate the masses and decay constants of the heavy-lightD(2)* (2460) and D-s2*(2573) tensor mesons in the framework of thermal QCD sum rules. Taking into account the additional operators arising at finite temperature, ...

#### G(Sigma Q Sigma Q pi) coupling constant via light cone QCD sum rules

(American Physical Society, 2010-10-11)

Using the most general form of the interpolating currents, the coupling constants g(Sigma b Sigma b pi) and g(Sigma c Sigma c pi) are calculated within the light cone QCD sum rules approach. It is found that g(Sigma c Sigma ...

#### Investigation of heavy-heavy pseudoscalar mesons in thermal QCD sum rules

(IOP Publishing, 2012-01)

We investigate the mass and decay constant of the heavy-heavy pseudoscalar, B(c), eta(c) and eta(b) mesons in the framework of finite-temperature QCD sum rules. The annihilation and scattering parts of spectral density are ...

#### Semileptonic Lambda b,c to nucleon transitions in full QCD at light cone

(American Physical Society, 2009-11)

The tree-level semileptonic Lambda(b)-> pl nu and Lambda(c)-> nl nu transitions are investigated using the light cone QCD sum rules approach in full theory. The spin 1/2, Lambda(Q) baryon with Q=b or c, is considered by ...

#### On the mass and decay constant of K-2*(1430) tensor meson

(IOP Publishing, 2010-02)

The mass and decay constant of the ground state strange tensor meson K-2* (1430) with I(J(P)) = 1/2(2(+)) are calculated using the QCD sum rules method. The results are consistent with the experimental data. It is found ...

#### Electric quadrupole and magnetic octupole moments of the light decuplet baryons within light cone QCD sum rules

(Elsevier, 2009-11-02)

The electric quadrupole and magnetic octupole moments of the light decuplet baryons are calculated in the framework of the light cone QCD sum rules. The obtained non-vanishing values for the electric quadrupole and magnetic ...