Now showing items 1-5 of 5
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 ...
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 ...
Application of the QCD light cone sum rule to tetraquarks: The strong vertices XbXb rho and XcXc rho
(American Physical Society, 2016-06-30)
The full version of the QCD light-cone sum rule method is applied to tetraquarks containing a single heavy b or c quark. To this end, investigations of the strong vertices XbXb rho and XcXc rho are performed, where X-b = ...
Strong Z(c)(+)(3900) -> J/psi pi(+); eta c rho(+)decays in QCD
(American Physical Society, 2016-04-01)
The widths of the strong decaysZ(c)(+)(3900) -> J/psi pi(+); and Z(c)(+) (3900) -> are calculated. To this end, the mass and decay constant of the exotic Z(c)(+) (3900) state are computed by means of a two -point sum rule. ...
On the nature of Ξc(2930)
The single charmed excited Ξc(2930) state was discovered many years ago by the BABAR Collaboration and recently confirmed by Belle experiment. However, both these experiments, unfortunately, could not fix the quantum numbers ...