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Now showing items 1-10 of 16

#### 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 ...

#### 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 ...

#### Forward-backward asymmetry, branching ratio and rate difference between electron and muon channels of B -> K-1(K*)l(+)l(-) transition in supersymmetric models

(Springer, 2010-01)

The mass eigen states K-1(1270) and K-1(1400) are mixture of the strange members of two axial-vector SU(3) octet, P-3(1)(K-1(A)) and P-1(1)(K-1(B)). Taking into account this mixture, the forward-backward asymmetry(A(FB)), ...

#### Rare semileptonic B-S decays to eta and eta ' mesons in QCD

(American Physical Society, 2010-12-01)

We analyze the rare semileptonic B-S -> (eta, eta')l(+)l(-), (l = e, mu, tau), and B-S -> (eta, eta')v (v) over bar transitions probing the (s) over bars content of the eta and eta' mesons via three-point QCD sum rules. ...

#### Strong coupling constants of decuplet baryons with vector mesons

(American Physical Society, 2010-11-10)

We provide a comprehensive study of strong coupling constants of decuplet baryons with light nonet vector mesons in the framework of light cone QCD sum rules. Using the symmetry arguments, we argue that all coupling constants ...

#### FCNC transitions of Lambda(b,c) to nucleon in SM

(IOP Publishing, 2010-11)

We provide a comprehensive study of semileptonic flavor-changing neutral current transitions for Lambda(b) -> nl(+) l(-) and Lambda(c) -> pl(+) l(-) in the context of light cone QCD sum rules. Using the most general form ...

#### Strong transitions of decuplet to octet baryons and pseudoscalar mesons

(Elsevier, 2010-12-01)

The strong coupling constants of light pseudoscalar pi, K and eta mesons with decuplet-oclet baryons are studied within light cone QCD sum rules, where SU(3)(f) symmetry breaking effects are taken into account It is shown ...

#### Scalar quarkonia at finite temperature

(American Physical Society, 2010-09-28)

Masses and decay constants of the scalar quarkonia, chi(Q0)(Q = b, c) with quantum numbers I-G (J(PC)) = 0(+)(0(++)), are calculated in the framework of the QCD sum rules approach both in vacuum and finite temperature. The ...

#### Heavy chi(Q) (2) tensor mesons in QCD

(Elsevier, 2010-06-14)

The masses and decay constants of the ground state heavy chi(Q2) (Q = b, c) tensor mesons are calculated in the framework of the QCD sum rules approach. The obtained results on the masses are in good consistency with the ...

#### Flavor-changing neutral currents transition of the Sigma(Q) to nucleon in full QCD and heavy quark effective theory

(IOP Publishing, 2010-08)

The loop-level flavor-changing neutral currents transitions of the Sigma(b) -> nl(+)l(-) and Sigma(c) -> pl(+)l(-) are investigated in full QCD and heavy quark effective theory in the light cone QCD sum rules approach. ...