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6 papers · 2 filters
On the choice of heavy baryon currents in the relativistic three-quark model
M. A. Ivanov, J. G. Korner, V. E. Lyubovitskij +2
We test the sensitivity of bottom baryon observables with regard to the choice of the interpolating three-quark currents within the relativistic three-quark model. We have found th…
Numerical analysis of the pi+pi- atom lifetime in ChPT
J. Gasser, V. E. Lyubovitskij, A. Rusetsky
We apply Chiral Perturbation Theory at one loop to analyze the general formula for the pi+pi- atom lifetime derived recently in the framework of QCD. The corresponding analytic exp…
Lambda_b and Lambda_c baryon decays at finite values of heavy quark masses
M. A. Ivanov, J. G. Korner, V. E. Lyubovitskij +1
Semileptonic decays of Lambda_b and Lambda_c baryons are studied within the Relativistic Three-Quark Model using finite heavy quark mass values. Employing the same parameters as ha…
Is Heavy Baryon Approach Necessary?
J. Gegelia, G. Japaridze, X. Q. Wang
It is demonstrated that using an appropriately chosen renormalization condition one can respect power counting within the relativistic baryon chiral perturbation theory without app…
On the Lifetime of the pi+pi- Atom
A. Gall, J. Gasser, V. E. Lyubovitskij +1
The pi+pi- atom decays -in the ground state - predominantly into two neutral pions. We present a general expression for the corresponding decay width in the framework of QCD (inclu…
Strong and Radiative Decays of Heavy Flavored Baryons
M. A. Ivanov, J. G. Korner, V. E. Lyubovitskij +1
We analyze strong one-pion and radiative one-photon decays of heavy flavored baryons within a relativistic three-quark model. Employing the same parameters as were used for the des…