167 citations · 847 across the 30 of their papers we have counts for
22 papers · 1 filter
Mixing of the low-lying three- and five-quark states with negative parity
C. S. An, B. Ch. Metsch, B. S. Zou
Mixing of the low-1/2^{-}3/2^{-}s^{3}s^{4}…
Effects of a spin-flavour dependent interaction on light-flavoured baryon helicity amplitudes
Michael Ronniger, Bernard Ch. Metsch
This paper is a continuation of previous work about the effects of a phenomenological flavour dependent force in a relativistically covariant constituent quark model based on the S…
Effects of a spin-flavour dependent interaction on the baryon mass spectrum
Michael Ronniger, Bernard Ch. Metsch
The effective quark interaction in a relativistically covariant constituent quark model based on the Salpeter equation is supplemented by an extra phenomenological flavour dependen…
Static observables of relativistic three-fermion systems with instantaneous interactions
Christian Haupt, Bernard Metsch, Herbert-R. Petry
We show that static properties like the charge radius and the magnetic moment of relativistic three-fermion bound states with instantaneous interactions can be formulated as expect…
Charmed baryons in a relativistic quark model
Sascha Migura, Dirk Merten, Bernard Metsch +1
We calculate mass spectra of charmed baryons within a relativistically covariant quark model based on the Bethe-Salpeter-equation in instantaneous approximation. Interactions are g…
Semileptonic decays of baryons in a relativistic quark model
Sascha Migura, Dirk Merten, Bernard Metsch +1
We calculate semileptonic decays of light and heavy baryons in a relativistically covariant constituent quark model. The model is based on the Bethe-Salpeter-equation in instantane…
Quark model description of hadrons
Bernard Metsch
In this contribution I will try to give an overview of what has been achieved in constituent quark models of mesons and baryons by a comparison of some selected results from variou…
Structure of baryons in a relativistic quark model
Bernard Metsch
Baryonic excitation spectra, electroweak and strong decay properties are discussed within a relativistically covariant constituent quark model based on the instantaneous approximat…
Strong Two--Body Decays of Light Mesons
Ralf Ricken, Matthias Koll, Dirk Merten +1
In this paper, we present results on strong two-body decay widths of light mesons calculated in a covariant quark model. The model is based on the Bethe-Salpeter equation…
Electroweak form factors of non-strange baryons
Dirk Merten, Ulrich Loering, Klaus Kretzschmar +2
We compute electroweak form factors of the nucleon and photon transition form factors of non-strange baryon resonances up to the third resonance region in a model with instanton-in…
A relativistic quark model of baryons
Bernard Metsch, Ulrich Loering
On the basis of the three-particle Bethe-Salpeter equation we formulated a relativistic quark model for baryons. Assuming the propagators to be given by their free form with consti…
Parity Doublets from a Relativistic Quark Model
Ulrich Loering, Bernard Metsch
The Nucleon- and the Lambda-excitation spectrum exhibit parity doublets, i.e. states of the same spin but with opposite parity being almost degenerate in mass. It is shown that in…
Weak Decays Of Heavy Mesons In A Covariant Quark Model
Dirk Merten, Ralf Ricken, Matthias Koll +2
In this paper we investigate weak decays of heavy mesons in the framework of a covariant quark model, which is based on the Bethe-Salpeter equation in instantaneous approximation.…
The light baryon spectrum in a relativistic quark model with instanton-induced quark forces II. The strange baryon spectrum
Ulrich Loering, Bernard Ch. Metsch, Herbert R. Petry
This is the third of a series of papers treating light baryon resonances up to 3 GeV within a relativistically covariant quark model based on the Bethe-Salpeter equation with insta…
A Relativistic Quark Model for Mesons with an Instanton-Induced Interaction
Matthias Koll, Ralf Ricken, Dirk Merten +2
We present new results of a relativistic quark model based on the Bethe-Salpeter equation in its instantaneous approximation. Assuming a linearly rising confinement potential with…
The Meson Spectrum in a Covariant Quark Model
Ralf Ricken, Matthias Koll, Dirk Merten +2
Within the framework of the instantaneous Bethe-Salpeter equation, we present a detailed analysis of light meson spectra with respect to various parameterizations of confinement in…
Quark Structure of Light Mesons
Bernard Metsch
On the basis of the Bethe-Salpeter Equation we developed a covariant constituent quark model, with confinement implemented by a linear potential and an instanton induced interactio…
A Relativistic Quark Model for Baryons
Bernard Metsch
We present a relativistic quark model for baryons, based on the Bethe-Salpeter equation in instantaneous approximation. Confinement is implemented by an interaction kernel which es…
The Quark Structure of Light Mesons
B. C. Metsch, H. R. Petry
We present the results of a covariant constituent quark model, based on the Bethe-Salpeter equation, where confinement is implemented by a string like linear potential explaining t…
Instanton Effects in the Decay of Scalar Mesons
Ch. Ritter, B. C. Metsch, C. R. Munz +1
We show that instanton effects may play a crucial role in the decay of scalar mesons into two pseudoscalars. Particularly the branching ratios of two meson decays of the $f_0(1500)…
Scalar Mesons in a Relativistic Quark Model with Instanton-Induced Forces
E. Klempt, B. C. Metsch, C. R. Munz +1
In a relativistic quark model with linear confinement and an instanton-induced interaction which solves the - puzzle, scalar mesons are found as almost pure SU(3) flavor sta…
Bound states in a constituent quark model
M. W. Beinker, B. C. Metsch, H. R. Petry
We consider the existence of bound systems consisting of two quarks and two antiquarks () within the framework of a constituent quark model. The underlying quark dynam…