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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…

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

Partial wave scattering amplitudes in baryon-baryon and baryon-antibaryon collisions and amplitudes for the production and decay of baryon resonances are constructed in the framework of the spin-momentum operator expansion method. The…

High Energy Physics - Phenomenology · Physics 2009-09-29 A. V. Anisovich , V. V. Anisovich , E. Klempt , V. A. Nikonov , A. V. Sarantsev

The long mean free path of $K^+$ mesons in nuclear matter makes this particle a suitable messenger for the dynamics of nucleus-nucleus reactions at intermediate energies (100 MeV to 3 GeV per nucleon). A prerequisite for this is the…

Nuclear Theory · Physics 2009-10-28 K. Tsushima , S. W. Huang , Amand Faessler

A 3-fluid hydrodynamic model is introduced for simulating heavy-ion collisions at incident energies between few and about 200 AGeV. In addition to the two baryon-rich fluids of 2-fluid models, the new model incorporates a third, baryon-free…

Nuclear Theory · Physics 2009-11-10 V. N. Russkikh , Yu. B. Ivanov , E. G. Nikonov , W. Noerenberg , V. D. Toneev

We study the decuplet baryon magnetic moments in a QCD-based quark model beyond quenched approximation. Our approach for unquenching the theory is based on the heavy baryon perturbation theory in which the axial couplings for baryon - meson…

High Energy Physics - Phenomenology · Physics 2009-10-31 Phuoc Ha

The nonperturbative nature of inter-nucleon interactions is explored by varying the momentum cutoff of a two-nucleon potential. Conventional force models, which have large cutoffs, are nonperturbative because of strong short-range…

Nuclear Theory · Physics 2009-11-11 S. K. Bogner , A. Schwenk , R. J. Furnstahl , A. Nogga

We discuss nuclear physics in the Witten-Sakai-Sugimoto model, in the limit of large number $N_c$ of colors and large 't Hooft coupling, with the addition of a finite mass for the quarks. Individual baryons are described by classical…

High Energy Physics - Theory · Physics 2021-06-18 Salvatore Baldino , Lorenzo Bartolini , Stefano Bolognesi , Sven Bjarke Gudnason

We study the role of quark-quark correlation in the baryon structure and, in particular, the hyperon non-leptonic weak decay, which is sensitive to the correlation between quarks in the spin-0 channel. We rigorously solve non-relativistic…

Nuclear Theory · Physics 2009-11-10 E. Hiyama , K. Suzuki , H. Toki , M. Kamimura

We present a perturbative calculation of baryon pair production in two-photon collisions, $\gamma \gamma \to B \bar{B}$, in which baryons are treated as quark-diquark systems. Our approach accounts for constituent mass effects in a…

High Energy Physics - Phenomenology · Physics 2007-05-23 C. F. Berger , W. Schweiger

Variational Monte Carlo calculations have been made for the $_{ \Lambda}^{17}$O hypernucleus using realistic two- and three-baryon interactions. A two pion exchange potential with spin- and space-exchange components is used for the…

Nuclear Theory · Physics 2009-10-28 A. A. Usmani , Steven C. Pieper , Q. N. Usmani

We study the heavy-heavy-light quark ($QQq$) system in a non-relativistic potential model, and investigate the quark motional effect on the inter-two-quark potential in baryons. We adopt the Hamiltonian with the static three-quark potential…

High Energy Physics - Phenomenology · Physics 2008-11-26 Arata Yamamoto , Hideo Suganuma

Based on a baryon-baryon interaction model with meson exchanges, we investigate the origin of the strong attraction in the $N \Omega ( {}^{5}S_{2} )$ interaction, which was indicated by recent lattice QCD simulations. The long range part of…

High Energy Physics - Phenomenology · Physics 2018-07-25 Takayasu Sekihara , Yuki Kamiya , Tetsuo Hyodo

We study the production of charmed baryons in the antiproton-proton and antiproton-nucleus interactions within a fully covariant model that is based on an effective Lagrangian approach. The baryon production proceeds via the $t$-channel…

High Energy Physics - Phenomenology · Physics 2018-03-09 R. Shyam , K. Tsushima

Starting from an effective Hamiltonian modelling a baryon made of $N$ identical quarks in the large-$N$ approach of QCD, we obtain analytical formulas allowing to estimate the contributions of multiquark interactions to the baryon mass. The…

High Energy Physics - Phenomenology · Physics 2022-06-02 F. Buisseret , C. Semay , C. T. Willemyns

The momentum correlation functions of baryon pairs, which reflects the baryon-baryon interaction at low energies, are investigated for multi-strangeness pairs ($\Omega\Omega$ and $N\Omega$) produced in relativistic heavy-ion collisions. We…

Nuclear Theory · Physics 2020-01-15 Kenji Morita , Shinya Gongyo , Tetsuo Hatsuda , Tetsuo Hyodo , Yuki Kamiya , Akira Ohnishi

In this study, we explore the interactions between mesons and baryons in the open heavy sectors to identify potential triple-heavy molecular pentaquarks. We derive the meson-baryon interaction potentials using the vector meson exchange…

High Energy Physics - Phenomenology · Physics 2024-10-17 Zhong-Yu Wang , Chu-Wen Xiao , Zhi-Feng Sun , Xiang Liu

In this talk we present a short review of recent developments concerning the interaction of vector mesons with baryons and with nuclei. We begin with the hidden gauge formalism for the interaction of vector mesons, then review results for…

Nuclear Theory · Physics 2012-03-22 E. Oset , A. Ramos , E. J. Garzon , P. Gonzalez , J. J. Xie , A. Martinez Torres , L. Tolos , R. Molina , C. W. Xiao

The energy dependence of the total kaon production cross sections in baryon baryon ($N$ and $\Delta$) collisions are studied in the resonance model, which is a relativistic, tree-level treatment. This study is the first attempt to complete…

Nuclear Theory · Physics 2014-11-18 K. Tsushima , A. Sibirtsev , A. W. Thomas , G. Q. Li

The possibility of kaon condensation in high-density symmetric nuclear matter is investigated including both s- and p-wave kaon-baryon interactions within the relativistic mean-field (RMF) theory. Above a certain density, we have a…

Nuclear Theory · Physics 2010-02-17 Tomoyuki Maruyama , Takumi Muto , Toshitaka Tatsumi , Kazuo Tsushima , Anthony W. Thomas

In this presentation we discuss the generation of hadrons with an exotic quark content and hidden charm emerging from three-body interactions. To be more specific, we have studied the $KD\bar{D}^*/K\bar D D^*$ and $ND\bar{D}^*/N\bar{D}D^*$…

High Energy Physics - Phenomenology · Physics 2022-04-05 Brenda B. Malabarba , A. M. Torres , K. P. Khemchandani , Xiu-Lei Ren , Li-Sheng Geng