782 citations · 10.3k across the 289 of their papers we have counts for
9 papers · 1 filter
The scalar mesons in multi-channel scattering and decays of the and families
Yurii S. Surovtsev, Petr Bydzovsky, Thomas Gutsche +3
The mesons are studied in a combined analysis of data on the isoscalar S-wave processes and on decays , $ψ(2S)\to J/ψ(π…
Selected strong decay modes of Y(4260)
Yubing Dong, Amand Faessler, Thomas Gutsche +1
In present work the Y(4260) resonance is considered as a weakly bound state of a pseudoscalar D and an axial D1 charm meson. We consider the two-body decay Y(4260) -> Zc(3900) + pi…
Polarization effects in the cascade decay Lambda_b -> Lambda(-> p pi-) + J/psi(-> l+ l-) in the covariant confined quark model
Thomas Gutsche, Mikhail A. Ivanov, Jurgen G. Korner +2
We calculate the invariant and helicity amplitudes for the nonleptonic decay Lambda_b -> Lambda + J/psi, psi(2S) in the covariant confined quark model. We discuss joint angular dec…
Strong decays of molecular states Zc(+) and Zc'(+)
Yubing Dong, Amand Faessler, Thomas Gutsche +1
The two newly observed hidden-charm mesons Zc(+)[3900] and a possible partner state Zc'(+)[3950] with quantum numbers J(P) = 1(+) are considered as hadronic molecules composed of b…
Nucleon GPDs in a light-front quark model derived from soft-wall AdS/QCD
Alfredo Vega, Ivan Schmidt, Thomas Gutsche +1
We study the helicity-independent generalized parton distributions of nucleons in the zero skewness case, based on a particular light-front quark model derived in a soft-wall AdS/Q…
Light-front quark model consistent with Drell-Yan-West duality and quark counting rules
Thomas Gutsche, Valery E. Lyubovitskij, Ivan Schmidt +1
We propose a phenomenological light-front wave function for hadrons with arbitrary twist-dimension (mesons, baryons and multiquark states), which gives the correct scaling behavior…
Electromagnetic structure of the nucleon and the Roper resonance in a light-front quark approach
Igor T. Obukhovsky, Amand Faessler, Thomas Gutsche +1
A relativistic light-front quark model is used to describe both the elastic nucleon and nucleon-Roper transition form factors in a large Q2 range, up to 35 GeV2 for the elastic and…
Limits on Lepton Flavor Violation from μ-e-conversion
Marcela Gonzalez, Thomas Gutsche, Juan Carlos Helo +3
We revisit the status of Lepton Flavor Violating (LFV) μe qq contact interactions from the view point of μ- e -conversion in nuclei. We consider their contribution to this LFV proc…
Rare baryon decays Lambda_b -> Lambda l+ l- (l=e, mu, tau) and Lambda_b -> Lambda gamma : Differential and total rates, lepton- and hadron-side forward-backward asymmetries
Thomas Gutsche, Mikhail A. Ivanov, Jurgen G. Korner +2
Using the covariant constituent quark model previously developed by us we calculate the differential rate and the forward-backward asymmetries on the lepton and hadron side for the…