Related papers: Relativistic Constituent Quark Model for Baryons

Decaying hadrons within constituent-quark models

Within conventional constituent-quark models hadrons come out as stable bound states of the valence (anti)quarks. Thereby the resonance character of hadronic excitations is completely ignored. A more realistic description of hadron spectra…

High Energy Physics - Phenomenology · Physics 2012-06-20 Regina Kleinhappel , Wolfgang Schweiger

Electromagnetic transition form factors of baryons in a relativistic Faddeev approach

The covariant Faddeev approach which describes baryons as relativistic three-quark bound states and is based on the Dyson-Schwinger and Bethe-Salpeter equations of QCD is briefly reviewed. All elements, including especially the baryons'…

High Energy Physics - Phenomenology · Physics 2018-08-01 Reinhard Alkofer , Christian S. Fischer , Helios Sanchis-Alepuz

Semileptonic decays of heavy baryons in the relativistic quark model

Semileptonic decays of heavy baryons consisting of one heavy (Q=b,c) and two light (q=u,d,s) quarks are considered in the heavy-quark--light-diquark approximation. The relativistic quasipotential equation is used for obtaining masses and…

High Energy Physics - Phenomenology · Physics 2009-11-11 D. Ebert , R. N. Faustov , V. O. Galkin

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Mass Spectra of $\Xi$ and $\Omega$ Baryons using hypercentral Constituent Quark Model

Hadron spectroscopy is an important tool towards the study of internal quark dynamics in a composite system. The present article focuses on the study of resonance spectra of strange baryons with S=-2, -3. The non-relativistic approach…

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Determination of CKM matrix element and axial vector form factors from weak decays of quantum-entangled strange baryons

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Baryons as solitons in Effective Chiral Quark - Meson Theory

The Nambu - Jona-Lasinio model in its SU(2) and SU(3) versions with scalar and pseudoscalar coupling are applied to baryons. The parameters of the model are fixed in the meson sector. The baryons arise as a soliton of three valence quarks…

High Energy Physics - Phenomenology · Physics 2007-05-23 Chr. V. Christov

Hadron and Quark Form Factors in the Relativistic Harmonic Oscillator Model

Nucleon, pion and quark form factors are studied within the relativistic harmonic oscillator model including the quark spin. It is shown that the nucleon charge, magnetic and axial form factors and the pion charge form factor can be…

High Energy Physics - Phenomenology · Physics 2010-12-17 V. V. Burov , A. De Pace , S. M. Dorkin , P. Saracco

Algebraic model of baryon resonances

We discuss recent calculations of electromagnetic form factors and strong decay widths of nucleon and delta resonances. The calculations are done in a collective constituent model of the nucleon, in which the baryons are interpreted as…

Nuclear Theory · Physics 2017-11-03 R. Bijker , A. Leviatan

The Kaon Form Factor in the Light-Cone Quark Model

The electromagnetic form factor of the kaon meson is calculated in the light-cone formalism of the relativistic constituent quark model. The calculated $K^+$ form factor is consistent with almost all of the available experimental data at…

High Energy Physics - Phenomenology · Physics 2007-05-23 Bo-Wen Xiao , Xin Qian , Bo-Qiang Ma

Triply-heavy baryons in a constituent quark model

A constituent quark model, which has recently been successfully applied to the study of heavy quarkonium properties such as its spectrum but also a diverse array of observables related with their electromagnetic, strong and weak decays and…

High Energy Physics - Phenomenology · Physics 2020-03-04 Gang Yang , Jialun Ping , Pablo G. Ortega , Jorge Segovia

Hard Constituent Quarks and Electroweak Properties of Pseudoscalar Mesons

The high momentum components generated in the wave function of pseudoscalar mes* by the one-gluon-exchange interaction are investigated within a relativistic constituent quark model. Adopting the light-cone formalism, the sensitivity of the…

Nuclear Theory · Physics 2016-08-14 F. Cardarelli , I. L. Grach , I. M. Narodetskii E. Pace , G. Salmè , S. Simula

Baryon resonances and strong decays

Constituent quark models provide a reasonable description of the baryon mass spectra. However, even in the light- and strange-flavor sectors several intriguing shortcomings remain. Especially with regard to strong decays of baryon…

Nuclear Theory · Physics 2008-11-26 T. Melde , W. Plessas

Constituent Quark-model for BaryonsTh. Harmonic confinement and Two-body Meson-exchange Potentials

Soft Two-body potentials between the constituent quarks of the nucleon are derived using harmonic oscillator, i.e. gaussian, quark wave-functions. The gaussian wave-functions are very suited for applications with the ESC soft-core…

Nuclear Theory · Physics 2025-01-22 Th. A. Rijken

Relativistic Covariance and Quark-Diquark Wave Functions

We derive covariant wave functions for hadrons composed of two constituents for arbitrary Lorentz boosts. Focussing explicitly on baryons as quark-diquark systems, we reduce their manifestly covariant Bethe-Salpeter equation to covariant…

Nuclear Theory · Physics 2007-05-23 M. Dillig

Probing the internal structure of baryons

Electromagnetic form factors are fundamental observables that describe the electric and magnetic structure of hadrons and provide keys to understand the strong interaction. At the Beijing Spectrometer (BESIII), form factors have been…

High Energy Physics - Experiment · Physics 2021-12-09 Guangshun Huang , Rinaldo Baldini Ferroli

Quark-Model Identification of Baryon Ground and Resonant States

We present a new classification scheme of baryon ground states and resonances into SU(3) flavor multiplets. The scheme is worked out along a covariant formalism with relativistic constituent quark models and it relies on detailed…

High Energy Physics - Phenomenology · Physics 2008-11-26 T. Melde , W. Plessas , B. Sengl