Now showing items 1-10 of 159
Semileptonic bs -> ds2*(2573) l(nu)over-barl transition in QCD
We analyze the semileptonic B-s -> D-s2*(2573) l (nu) over bar (l) transition, where l = tau, mu or e, within the standard model. We apply the QCD sum rule approach to calculate the transition form factors entering the low ...
Thermal properties of light tensor mesons via QCD sum rules
(Hindawi Publishing Corporation, 2015)
The thermal properties of f(2)(1270), a(2)(1320), and K-2*(1430) light tensor mesons are investigated in the framework of QCD sum rules at finite temperature. In particular, the masses and decay constants of the light ...
Semileptonic b -> (d)over-bar transition in a nuclear medium
(American Physical Society, 2015-02-24)
We study the semileptonic tree-level B -> (D) over bar transition in the framework of QCD sum rules in a nuclear medium. In particular, we calculate the in-medium form factors entering the transition matrix elements defining ...
Analysis of the semileptonic transition of heavy Xi(Q) baryon to Xi baryon in Light Cone QCD Sum Rules
This study presents the analysis of form factor calculations of semileptonic transitions of heavy baryons via light cone QCD sum rules. The work covers the semileptonic transitions of the Xi(b) and Xi(c) baryons. The form ...
Investigation of the D*s2(2573)+D+K0 vertex via QCD sum rules
(IOP Publishing, 2014-12-08)
In this work the D∗s2(2573)+D+K0 vertex is studied and the coupling constant corresponding to the D∗s2(2573)+ D+K0 transition is calculated. The calculation is performed using three point QCD sum rules method and the value ...
Analysis of Ds*DK1 (Bs*BK1) coupling constants within QCD sum rules
(IOP Publishing, 2012)
We compute the strong coupling constants for D*sDK1 and B*sBK1 vertices within the QCD sum rules. The coupling constants are calculated for both D(B) and K1 off-shell mesons.
Charmed partner of the exotic X(5568) state and its properties
(American Physical Society, 2016-05-06)
The mass, decay constant, and width of a hypothetical charmed partner X-c of the newly observed exotic X-b(5568) state are calculated using the technique of the QCD sum rule method. The X-c = [su][(c) over bar(d) over bar] ...
Thermal modifications of the heavy axial vector mesons properties
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 ...
Spectroscopic parameters and decays of the resonance Z(b)(10610)
The resonance Zb(10610) is investigated as the diquark-antidiquark Zb = [bu][(b) over bar(d) over bar] state with spin-parity J(P) = 1(+). The mass and current coupling of the resonance Z(b)(10610) are evaluated using QCD ...
Decuplet baryons in a hot medium
(European Physical Journal C, 2016)
The thermal properties of the light decuplet baryons are investigated in the framework of the thermal QCD sum rules. In particular, the behavior of the mass and residue of the Delta, Sigma*, Xi*, and Omega baryons with ...