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Now showing items 1-10 of 11

#### Mass and meson-current coupling constant of the tensor D-2*(2460)

(Springer, 2012-06)

We calculate the mass and meson-current coupling constant of the D-2*(2460) tensor meson in the framework of QCD sum rules. The obtained result on the mass is compatible with the experimental data.

#### Semileptonic transition of Sigma(b) to Sigma in light cone QCD sum rules

(American Physical Society, 2012-01-03)

We use distribution amplitudes of the light Sigma baryon and the most general form of the interpolating current for heavy Sigma(b) baryon to investigate the semileptonic Sigma(b) -> Sigma l(+)l(-) transition in light cone ...

#### Light cone QCD sum rules study of the semileptonic heavy Xi(Q) and Xi(Q)' transitions to Xi and Sigma baryons

(Springer, 2012-01-20)

The semileptonic decays of heavy spin-1/2, Xi(b(c)) and Xi(b(c))' baryons to the light spin-1/2, Xi and S baryons are investigated in the framework of light cone QCD sum rules. In particular, using the most general form ...

#### Semileptonic transition of P-wave bottomonium chi(b0)(1P) to B-c meson

(Springer, 2012-08-14)

Taking into account the two-gluon condensate contributions, the transition form factors enrolled to the low-energy effective Hamiltonian describing the semileptonic chi(b0) -> B(c)l (nu) over bar, (l = (e, mu, tau)) decay ...

#### 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 ...

#### Analyses of gD*sDK and gB*sBK vertices in QCD sum rules

(IOP Publishing, 2012)

The coupling constants g D*sDK and g B*sBK are calculated in the framework of QCD sum rules. We evaluate the correlation functions of these vertices considering both D(B) and K mesons off-shell and obtain the results as g ...

#### g DsDK*0 and g BsDK*0 coupling constants in QCD sum rules

(IOP Publishing, 2012)

In the present study, we calculate the strong coupling constants g DsDK* 0(800) and g BsDK* 0(800) within the three-point QCD sum rules approach. We evaluate the correlation function of the considered vertices taking into ...

#### Decay constants of heavy vector mesons at finite temperature

(IOP Publishing, 2012)

This study deals with determination of the decay constants of heavy vector mesons in the framework of the thermal QCD sum rules. We calculate both thermal spectral density and non-perturbative contributions taking into ...

#### Mesons spectral functions at finite temperature

(IOP Publishing, 2012)

We investigate the thermal spectral densities for (pseudo)scalar and vector currents in the framework of the real time formalism when mass of two quarks are different. Such spectral densities are necessary for the ...

#### Thermal modifications of the heavy axial vector mesons properties

(SISSA, 2012)

We investigate the properties of the heavy axial vector χb1 and χc1 quarkonia at finite temperature. Taking into account the thermal spectral density as well as additional operators coming up at finite temperature and ...