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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

In this paper, we investigate the hidden-charm pentaquarks as $\bar{D}^{(\ast)}\Lambda_{\rm c}$ and $\bar{D}^{(\ast)}\Sigma^{(\ast)}_{\rm c}$ molecules coupled to the five-quark states. Furthermore, we extend our calculations to the…

High Energy Physics - Phenomenology · Physics 2019-08-14 Yasuhiro Yamaguchi , Alessandro Giachino , Atsushi Hosaka , Elena Santopinto , Sachiko Takeuchi , Makoto Takizawa

The mass spectrum of the charmed mesons is investigated by considering the coupled channel effects within the nonrelativistic potential model. The predicted masses of the charmed mesons are in agreement with experimental data. The strong…

High Energy Physics - Phenomenology · Physics 2024-11-06 Wei Hao , M. Atif Sultan , En Wang

Following a model based on the $\rm{SU}(8)$ symmetry that treats heavy pseudo-scalars and heavy vector mesons on an equal footing, as required by heavy quark symmetry, we study the interaction of baryons and mesons in coupled channels…

High Energy Physics - Phenomenology · Physics 2010-05-25 D. Gamermann , C. Garcia-Recio , J. Nieves , L. L. Salcedo , L. Tolos

Adopting the one-boson-exchange model, we perform a systematic investigation of interactions between a doubly charmed baryon $(\Xi_{cc})$ and an $S$-wave charmed baryon ($\Lambda_c$, $\Sigma_c^{(*)}$, and $\Xi_c^{(\prime,*)}$). Both the…

High Energy Physics - Phenomenology · Physics 2018-06-13 Rui Chen , Fu-Lai Wang , Atsushi Hosaka , Xiang Liu

We study charmed baryon resonances which are generated dynamically within a unitary meson-baryon coupled channel model that treats the heavy pseudoscalar and vector mesons on equal footing as required by heavy-quark symmetry. It is an…

High Energy Physics - Phenomenology · Physics 2009-10-15 C. Garcia-Recio , V. K. Magas , T. Mizutani , J. Nieves , A. Ramos , L. L. Salcedo , L. Tolos

We study exotic baryon systems composed of anticharmed mesons and strange baryons using the extended local hidden gauge approach. By solving the coupled-channel Bethe-Salpeter equation with interaction kernels from vector meson exchange, we…

High Energy Physics - Phenomenology · Physics 2025-07-03 Jing Song , Eulogio Oset

The s-wave interactions of the baryon decuplet with the octet of pseudoscalar mesons is studied in a unitarized coupled channel approach. We obtain a fair agreement for mass and width of several 3/2- resonances. In particular, the Xi(1820),…

Nuclear Theory · Physics 2007-05-23 M. J. Vicente Vacas , E. Oset , Sourav Sarkar

We obtain the properties of charmed mesons in dense matter using a coupled-channel approach which accounts for Pauli blocking effects and meson self-energies in a self-consistent manner. We study the behaviour of dynamically-generated…

Nuclear Theory · Physics 2015-05-18 L. Tolos , D. Gamermann , C. Garcia-Recio , E. Oset , R. Molina , J. Nieves , A. Ramos

We study the interaction of vector mesons with the octet of stable baryons in the framework of the local hidden gauge formalism using a coupled channels unitary approach. We examine the scattering amplitudes and their poles, which can be…

High Energy Physics - Phenomenology · Physics 2014-11-18 E. Oset , A. Ramos

We perform a coupled-channel study of the possible deuteron-like molecules with two heavy flavor quarks, including the systems of $D^{(*)}D^{(*)}$ with double charm, $\bar{B}^{(*)}\bar{B}^{(*)}$ with double bottom and $D^{(*)}\bar{B}^{(*)}$…

High Energy Physics - Phenomenology · Physics 2013-12-16 Ning Li , Zhi-Feng Sun , Xiang Liu , Shi-Lin Zhu

We study $S$-wave interactions of the baryon decuplet with the octet of pseudoscalar mesons using the lowest order chiral Lagrangian. In the S=1 sector, we find an attractive interaction in the $\Delta K$ channel with I=1 while it is…

Nuclear Theory · Physics 2008-11-26 Sourav Sarkar , E. Oset , M. J. Vicente Vacas

A vector meson exchange model based on effective Lagrangians is used to build the meson--baryon interaction in the charm $+1$, strangeness $-2$ and isospin $0$ sector. The s-wave scattering amplitudes resulting from the unitarization in…

High Energy Physics - Phenomenology · Physics 2018-12-11 Gloria Montana , Angels Ramos , Albert Feijoo

Charmed baryon resonances that are generated dynamically are studied within a unitary baryon-meson coupled-channel model, which incorporates heavy-quark spin symmetry. The extension of the SU(3) Weinberg-Tomozawa chiral Lagrangian to SU(8)…

High Energy Physics - Phenomenology · Physics 2012-06-18 O. Romanets , L. Tolos , C. Garcia-Recio , J. Nieves , L. L. Salcedo , R. G. E. Timmermans

In this work, using the covariant light front approach with conventional vertex functions, we estimate the production rates of $D$-wave charmed/charmed-strange mesons via $B_{(s)}$ semileptonic decays. Due to these calculated considerable…

High Energy Physics - Phenomenology · Physics 2019-03-12 Kan Chen , Hong-Wei Ke , Xiang Liu , Takayuki Matsuki

In this work we present our model that dynamically generates resonances from charmed and light pseudoscalar and vector mesons. The model generates a rich spectrum of charmed and hidden charm scalar and axial resonances, most of them which…

High Energy Physics - Phenomenology · Physics 2009-05-12 D. Gamermann , E. Oset , B. S. Zou

We systematically investigate the possible molecular states composed of (1) two spin-$\frac{3}{2}$ doubly charmed baryons, and (2) a pair of spin-$\frac{3}{2}$ and spin-$\frac{1}{2}$ doubly charmed baryons. The one-boson-exchange (OBE)…

High Energy Physics - Phenomenology · Physics 2020-03-18 Bin Yang , Lu Meng , Shi-Lin Zhu

A meson-baryon interaction in the charm $+1$, strangeness $-2$ and isospin $0$ sector is built from a t-channel vector meson exchange model employing effective Lagrangians. The implementation of coupled-channel unitarization in the s-wave…

High Energy Physics - Phenomenology · Physics 2019-03-25 Gloria Montana , Angels Ramos , Albert Feijoo

We study the properties of charmed hadrons in dense matter within a coupled-channel approach which accounts for Pauli blocking effects and meson self-energies in a self-consistent manner. We analyze the behaviour in this dense environment…

Nuclear Theory · Physics 2015-05-14 L. Tolos , D. Gamermann , C. Garcia-Recio , R. Molina , J. Nieves , E. Oset , A. Ramos

The properties of charmed mesons in nuclear matter and nuclei are reviewed. Different frameworks are discussed paying a special attention to unitarized coupled-channel approaches which incorporate heavy-quark spin symmetry. Several charmed…

Nuclear Theory · Physics 2013-11-06 Laura Tolos