English
Related papers

Related papers: $N\bar D $ system: A challenge for $\bar {\rm P}$A…

200 papers

We study the two-baryon system with two units of charm looking for the possible existence of a loosely bound state resembling the $H$ dibaryon. We make use of a chiral constituent quark model tuned in the description of the baryon and meson…

High Energy Physics - Phenomenology · Physics 2015-08-17 T. F. Carames , A. Valcarce

We look for $\Delta\Delta$ and $N\Delta$ resonances by calculating $NN$ scattering phase shifts of two interacting baryon clusters of quarks with explicit coupling to these dibaryon channels. Two phenomenological nonrelativistic chiral…

Nuclear Theory · Physics 2009-11-13 J. L. Ping , H. X. Huang , H. R. Pang , Fan Wang , C. W. Wong

We study possible multiquark contributions to the charm baryon spectrum by considering higher order Fock space components. For this purpose we perform two different calculations. In a first approach we do a coupled-channel calculation of…

High Energy Physics - Phenomenology · Physics 2015-07-30 T. F. Carames , A. Valcarce

We investigate the low-energy elastic DbarN interaction using a quark model that confines color and realizes dynamical chiral symmetry breaking. The model is defined by a microscopic Hamiltonian inspired in the QCD Hamiltonian in Coulomb…

Nuclear Theory · Physics 2015-06-11 C. E. Fontoura , G. Krein , V. E. Vizcarra

We develop a model to describe odd parity baryon resonances generated dynamically through a unitary baryon-meson coupled-channels approach. The scheme applies to channels with light and/or heavy quark content. Distinct features of the model…

High Energy Physics - Phenomenology · Physics 2013-04-30 C. Garcia-Recio , J. Nieves , O. Romanets , L. L. Salcedo , L. Tolos

$S$-wave bound-states composed of a nucleon($N$) and a heavy meson ($D$, $D^*$, $\bar{B}$ or $\bar{B}^*$) are investigated in both the chiral SU(3) quark model and the extended chiral SU(3) quark model by solving the resonating group method…

Nuclear Theory · Physics 2019-03-05 Dan Zhang , Dan Yang , Xiao-Fei Wang , Kanzo Nakayama

Using the resonating group method (RGM), we dynamically study the baryon-meson interactions in chiral quark model. Some interesting results are obtained: (1) The Sigma K state has an attractive interaction, which consequently results in a…

Nuclear Theory · Physics 2017-08-23 F. Huang , Z. Y. Zhang , Y. W. Yu

ND and ND^* interactions become a hot topic after the observation of new charmed hadrons \Sigma_c(2800) and \Lambda_c(2940)^+. In this letter, we have preliminary investigated S-wave ND and ND^* interactions with possible quantum numbers in…

Nuclear Theory · Physics 2015-08-18 Dan Yang , Jing Liu , Dan Zhang

We study hadronic molecules formed by a heavy meson and a nucleon, DN and D*N (BbarN and Bbar*N) systems. Respecting the heavy quark symmetry and chiral symmetry, we consider the DN-D*N (BbarN-Bbar*N$) mixing induced by the one boson…

High Energy Physics - Phenomenology · Physics 2019-08-08 Yasuhiro Yamaguchi , Shunsuke Ohkoda , Shigehiro Yasui , Atsushi Hosaka

A possibility of the construction of a periodic table for the excited baryon spectrum is shown in the frame of a relativistic chiral quark model based on selection rules derived from the one-pion exchange mechanism. It is shown that all the…

High Energy Physics - Phenomenology · Physics 2011-10-31 E. M. Tursunov

We study the effect of a hot and dense medium on the binding energy of hadronic molecules with open-charm mesons. We focus on a recent chiral quark-model-based prediction of a molecular state in the $N \bar D$ system. We analyze how the…

High Energy Physics - Phenomenology · Physics 2016-08-17 T. F. Caramés , C. E. Fontoura , G. Krein , K. Tsushima , J. Vijande , A. Valcarce

The structures of N phi states with spin-parity J^{p}=3/2^- and J^p=1/2^- are dynamically studied in both the chiral SU(3) quark model and the extended chiral SU(3) quark model by solving a resonating group method (RGM) equation. The model…

Nuclear Theory · Physics 2008-11-26 F. Huang , Z. Y. Zhang , Y. W. Yu

We present a comparative study of the charmed baryon$-$nucleon interaction based on different theoretical approaches. For this purpose, we make use of i) a constituent quark model tuned in the light-flavor baryon$-$baryon interaction and…

High Energy Physics - Phenomenology · Physics 2019-07-17 H. Garcilazo , A. Valcarce , T. F. Carames

The spectrum of the SU(2) flavor baryons is studied in the frame of a relativistic chiral quark potential model based on the one-pion and one-gluon exchange mechanisms. It is argued that the N* and Delta* resonances strongly coupled to the…

High Energy Physics - Phenomenology · Physics 2014-10-17 E. M. Tursunov , S. Krewald

We study the chiral interactions of the hidden charm $D\bar{D}^*$ system within chiral effective field theory. Chiral Lagrangians are constructed by incorporating the chiral symmetry, heavy quark symmetry as well as proper charge…

High Energy Physics - Phenomenology · Physics 2022-03-02 Hao Xu

In this work, we explore a systematic investigation on $S$-wave interactions between a doubly charmed baryon $\Xi_{cc}(3621)$ and a charmed meson in a $T$ doublet $(D_1,\,D_2^*)$. We first analyze the possibility for forming…

High Energy Physics - Phenomenology · Physics 2019-04-03 Fu-Lai Wang , Rui Chen , Zhan-Wei Liu , Xiang Liu

We study the nucleon-nucleon (NN) problem as a six-quark system in a nonrelativistic chiral constituent quark model where the Hamiltonian contains a linear confinement and a pseudoscalar meson (Goldstone boson) exchange interaction between…

Nuclear Theory · Physics 2009-10-31 D. Bartz , Fl. Stancu

We study the $DN$ and $D^\ast N$ interactions to probe the inner structure of $\Sigma_c(2800)$ and $\Lambda_c(2940)$ with the chiral effective field theory to the next-to-leading order. We consider the contact term, one-pion-exchange and…

High Energy Physics - Phenomenology · Physics 2020-06-02 Bo Wang , Lu Meng , Shi-Lin Zhu

Stimulated by the meson-baryon molecular interpretations of the $P_c$ states ($P_c(4312)/P_c(4440)/P_c(4457)$), we systematically study the interactions between an $S-$wave charm-strange baryon $\Xi_c^{(\prime,*)}$ and an anti-charmed meson…

High Energy Physics - Phenomenology · Physics 2022-02-08 Rui Chen , Xiang Liu

We perform a systematic study of the bound state problem of $D\bar{D}$ and $B\bar{B}$ systems by using effective interaction in our chiral quark model. Our results show that both the interactions of $D\bar{D}$ and $B\bar{B}$ states are…

Nuclear Theory · Physics 2012-10-15 M. T. Li , W. L. Wang , Y. B. Dong , Z. Y. Zhang
‹ Prev 1 2 3 10 Next ›