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We present results of a high statistics study of the quenched spectrum using Wilson fermions at $\beta=6.0$ on $32^3 \times 64$ lattices. We calculate the masses of mesons and baryons composed of both degenerate and non-degenerate quarks.…

High Energy Physics - Lattice · Physics 2008-02-03 Tanmoy Bhattacharya , Rajan Gupta , Gregory Kilcup , Stephen Sharpe

A symmetry-preserving treatment of a vector$\times$vector contact interaction is used to compute spectra of ground-state $J^P = 0^\pm, 1^\pm$ $(f\bar g)$ mesons, their partner diquark correlations, and $J^P=1/2^\pm, 3/2^\pm$ $(fgh)$…

High Energy Physics - Phenomenology · Physics 2021-05-05 Pei-Lin Yin , Zhu-Fang Cui , Craig D. Roberts , Jorge Segovia

We review the two sources of hyperon enhancement in the dual parton model: strings originating from diquark-antidiquark pairs in the nucleon sea and net baryons containing two or three sea quarks with a yield controlled by the observed…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Capella , C. A. Salgado

The properties of $K$ and $\bar K$ mesons in nuclear matter at finite temperature are obtained from a chiral unitary approach in coupled channels which incorporates the $s$- and p-waves of the kaon-nucleon interaction. The in-medium…

High Energy Physics - Phenomenology · Physics 2015-05-14 L. Tolos , D. Cabrera , A. Polls , A. Ramos

Progress in determining the spectrum of excited baryons and mesons in lattice QCD is described. Large sets of carefully-designed hadron operators have been studied and their effectiveness in facilitating the extraction of excited-state…

High Energy Physics - Lattice · Physics 2015-05-18 C. Morningstar , A. Bell , J. Bulava , E. Engelson , J. Foley , K. J. Juge , D. Lenkner , M. Peardon , S. Wallace , C. H. Wong

We overview a holographic QCD based on the D4-D8 string theory model, with emphasis on baryons and nucleon-meson interactions thereof. Baryons are realized as holographic images of Skyrmions, but with much qualitative changes. This allows…

Nuclear Theory · Physics 2015-05-27 Piljin Yi

We review recent progress in our understanding of the nucleon excitation spectrum. Thanks to dedicated efforts at facilities such as ELSA, MAMI and Jefferson Lab, several new nucleon resonances have been discovered, and evidence for…

High Energy Physics - Phenomenology · Physics 2025-11-18 Volker Burkert , Gernot Eichmann , Eberhard Klempt

The hypercentral Constituent Quark Model (hCQM) for the baryon structure is reviewed and its applications are systematically discussed. The model is based on a simple form of the quark potential, which contains a Coulomb-like interaction…

Nuclear Theory · Physics 2015-03-05 M. M. Giannini , E. Santopinto

A new Hamiltonian model is introduced to study the spectrum of light hadrons. It combines relativistic field theory with elements of the constituent quark model. In addition to the standard linear confining and pseudoscalar meson exchange…

High Energy Physics - Phenomenology · Physics 2015-06-11 W. Xie , P. Wang

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…

High Energy Physics - Phenomenology · Physics 2016-10-12 Gernot Eichmann , Helios Sanchis-Alepuz , Richard Williams , Reinhard Alkofer , Christian S. Fischer

In this work we calculate the mass spectrum and decay constants of ground and excited states of heavy-light $P$-wave mesons such as $1^{++}$ and $1^{+-}$, with quark composition, $c\overline{u}, c\overline{s}, b\overline{u}, b\overline{s}$,…

High Energy Physics - Phenomenology · Physics 2021-08-18 Vaishali Guleria , Shashank Bhatnagar

For decades, the difficulty of tackling a strong coupling model with a perturbative approach remained regardless of numerous inquiries. In the current work, a typical mean field theory procedure transforms a strong coupling Hamiltonian into…

Superconductivity · Physics 2022-05-10 Xing Yang

The radiative decays of the p-wave charmed heavy baryons to the ground state baryon states are studied in the framework of the light cone QCD sum rules method. Firstly, the transition form factors that describe these transitions are…

High Energy Physics - Phenomenology · Physics 2019-06-26 T. M. Aliev , T. Barakat , M. Savci

The electromagnetic decays of the ground state baryon multiplets with one heavy quark are calculated using Heavy Hadron Chiral Perturbation Theory. The M1 and E2 amplitudes for S^{*}--> S gamma, S^{*} --> T gamma and S --> T gamma are…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. C. Banuls , A. Pich , I. Scimemi

In the heavy quark limit, properties of heavy mesons and doubly heavy baryons are related by heavy quark-diquark symmetry. This problem is reanalyzed in the framework of Non-Relativistic QCD (NRQCD). We introduce a novel method for deriving…

High Energy Physics - Phenomenology · Physics 2014-11-18 Sean Fleming , Thomas Mehen

An approach for relating the nucleon excited states extracted from lattice QCD and the nucleon resonances of experimental data has been developed using the Hamiltonian effective field theory (HEFT) method. By formulating HEFT in the finite…

We propose the study of the inclusive production of two $\Lambda$ hyperons or a single $\Lambda$-particle in association with a jet, featuring high transverse momenta and large separation in rapidity, as a probe channel of the resummation…

High Energy Physics - Phenomenology · Physics 2020-12-30 Francesco Giovanni Celiberto , Dmitry Yu. Ivanov , Alessandro Papa

We calculate the light hadron spectrum in full QCD using two plus one flavor Asqtad sea quarks and domain wall valence quarks. Meson and baryon masses are calculated on a lattice of spatial size $L \approx 2.5$\texttt{fm}, and a lattice…

Progress in calculating the spectrum of excited baryons and mesons in lattice QCD is described. Correlation matrices of sets of spatially-extended hadron operators have been studied and their effectiveness in facilitating the extraction of…

High Energy Physics - Lattice · Physics 2010-12-01 Colin Morningstar , A. Bell , C. Y. Chen , D. Lenkner , C. H. Wong , J. Bulava , J. Foley , K. J. Juge , M. Peardon

Here we continue to elaborate properties of the relativistic mean-field based model (SHMC) proposed in ref. [6] where hadron masses and coupling constants depend on the $\sigma$-meson field. The validity of approximations used in [6] is…

Nuclear Theory · Physics 2008-11-26 A. S. Khvorostukhin , V. D. Toneev , D. N. Voskresensky