A unified potential for mesons and baryons

Bhaduri, R. K.; Cohler, L. E.; Nogami, Y.

doi:10.1007/bf02827441

Cited by 217 publications

(194 citation statements)

References 20 publications

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“…All free parameters in the potential had been adjusted to reproduce the light and heavy-light meson spectra. For its use in baryons we apply the usual prescription [4,25] …”

Section: Resultsmentioning

confidence: 99%

Hyperfine mixing in semileptonic decay of doubly heavy baryons

2010

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We qualitatively corroborate the results of W. Roberts and M. Pervin in Int. J. Mod. Phys. A 24, 2401 according to which hyperfine mixing greatly affects the decay widths of b → c semileptonic decays involving doubly heavy bc baryons. However, our predictions for the decay widths of the unmixed states differ from those reported in the work of Roberts and Pervin by a factor of 2, and this discrepancy translates to the mixed case. We further show that the predictions of heavy quark spin symmetry, might be used in the future to experimentally extract information on the admixtures in the actual physical bc baryons, in a model independent manner.

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“…All free parameters in the potential had been adjusted to reproduce the light and heavy-light meson spectra. For its use in baryons we apply the usual prescription [4,25] …”

Section: Resultsmentioning

confidence: 99%

Hyperfine mixing in semileptonic decay of doubly heavy baryons

2010

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“…Additional terms in the potential can be motivated by one-gluon exchange and relativistic corrections, see e.g. [88,103,104,[110][111][112][113][114] and references therein. The progress of ref.…”

Section: The Quark Modelmentioning

confidence: 99%

Baryons as relativistic three-quark bound states

Eichmann

Sanchis-Alepuz

Williams

et al. 2016

Progress in Particle and Nuclear Physics

436

530

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We review the spectrum and electromagnetic properties of baryons described as relativistic three-quark bound states within QCD. The composite nature of baryons results in a rich excitation spectrum, whilst leading to highly non-trivial structural properties explored by the coupling to external (electromagnetic and other) currents. Both present many unsolved problems despite decades of experimental and theoretical research. We discuss the progress in these fields from a theoretical perspective, focusing on nonperturbative QCD as encoded in the functional approach via Dyson-Schwinger and Bethe-Salpeter equations. We give a systematic overview as to how results are obtained in this framework and explain technical connections to lattice QCD. We also discuss the mutual relations to the quark model, which still serves as a reference to distinguish 'expected' from 'unexpected' physics. We confront recent results on the spectrum of non-strange and strange baryons, their form factors and the issues of two-photon processes and Compton scattering determined in the DysonSchwinger framework with those of lattice QCD and the available experimental data. The general aim is to identify the underlying physical mechanisms behind the plethora of observable phenomena in terms of the underlying quark and gluon degrees of freedom.

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“…We consider five different interquark potentials to calculate the coordinate space wave functions, one proposed by Bhadury [41] and other four proposed by Silvestre-Brac in [42]. All of them have the same structure: a term accounting for confinement, plus Coulomb and hyperfine terms both of them coming from one-gluon exchange.…”

Section: Meson States and Interquark Interactionsmentioning

confidence: 99%

Weak decays ofB¯smesons

Albertus

2014

Phys. Rev. D

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In the present work we study the semileptonic decays ofB s mesons in the context of nonrelativistic constituent quark models. We estimate the uncertainties of our calculation using different interquark potentials to obtain the meson wave functions. We check the results from our model against the predictions of Heavy Quark Symmetry, in the limit of infinite heavy quark mass. We also study the nonleptonic decays ofB s mesons within the factorization approximation.2

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A unified potential for mesons and baryons

Cited by 217 publications

References 20 publications

Hyperfine mixing in semileptonic decay of doubly heavy baryons

Hyperfine mixing in semileptonic decay of doubly heavy baryons

Baryons as relativistic three-quark bound states

Weak decays ofB¯smesons

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