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Recent developments in hadron spectroscopy triggers the discussion on various exotic configurations beyond the simple three-quark state for baryons and quark-anti-quark pair for mesons. In particular, the states observed near a two-hadron…

High Energy Physics - Phenomenology · Physics 2020-01-08 Tetsuo Hyodo

In this talk I review recent advances on the structure of the meson and baryon resonances which can be dynamically generated from the interaction of mesons or mesons and baryons. Particular emphasis is put on results involving vector…

High Energy Physics - Phenomenology · Physics 2010-02-25 E. Oset , L. S. Geng , D. Gamermann , R. Molina , D. Nicmorus. Yamagata-Sekihara , H. Nagahiro , S. Hirenzaki , D. Jido , M. Döring , A. Ramos

In this manuscript, I will report the details of our recent work on the vector meson-baryon (VB) interaction, which we studied with the motivation of finding dynamical generation of resonances in the corresponding systems. We started our…

Nuclear Theory · Physics 2015-06-04 K. P. Khemchandani , A. Martínez Torres , H. Kaneko , H. Nagahiro , A. Hosaka

A study of nonstrange meson-baryon systems has been made with the idea of understanding the properties of the low-lying $1/2^-$ $N^*$ and $\Delta$ resonances. The coupled channels are built by considering the pseudoscalar and vector mesons…

Nuclear Theory · Physics 2013-12-18 K. P. Khemchandani , A. Martínez Torres , H. Nagahiro , A. Hosaka

Assuming that the $f'_2(1525)$ and $K^*_2(1430)$ resonances are dynamically generated states from the vector meson-vector meson interactions in $S$-wave with spin $S=2$, we study the $\gamma p \to f'_2(1525) p$ and $\gamma p \to K^*_2(1430)…

Nuclear Theory · Physics 2016-03-23 Ju-Jun Xie , Eulogio Oset , Li-Sheng Geng

In these lectures I make an introduction to chiral unitary theory applied to the meson baryon interaction and show how several well known resonances are dynamically generated, and others are predicted. Two very recent experiments are…

Nuclear Theory · Physics 2011-02-09 E. Oset , D. Cabrera , V. K. Magas , L. Roca , S. Sarkar , M. J. Vicente Vacas , A. Ramos

In this work, the $K\bar{K}^*$ interaction is studied in a quasipotential Bethe-Salpeter equation approach combined with the one-boson-exchange model. With the help of the hidden-gauge Lagrangian, the exchanges of pseudoscalar mesons ($\pi$…

High Energy Physics - Phenomenology · Physics 2017-02-01 Pei-Liang Lü , Jun He

Using a chiral unitary approach for the meson--baryon interactions, we show that two octets of J^{\pi}=1/2^- baryon states, which are degenerate in the limit of exact SU(3) symmetry, and a singlet are generated dynamically. The SU(3)…

Nuclear Theory · Physics 2009-11-10 D. Jido , J. A. Oller , E. Oset , A. Ramos , U. -G. Meißner

In this work, we interpret the newly observed $\eta_1(1855)$ resonance with exotic $J^{PC}=1^{-+}$ quantum numbers in the $I=0$ sector, reported by the BESIII Collaboration, as a dynamically generated state from the interaction between the…

High Energy Physics - Phenomenology · Physics 2023-02-28 Mao-Jun Yan , Jorgivan M. Dias , Adolfo Guevara , Feng-Kun Guo , Bing-Song Zou

We have studied the interaction of vectors mesons within the hidden gauge formalism and applied it to the particular case of the $\rho \rho$ interaction. We find a strong attraction in the isospin, spin channels I,S=0,0 and 0,2, which is…

High Energy Physics - Phenomenology · Physics 2008-12-30 R. Molina , D. Nicmorus , E. Oset

We study the production of vector resonances at the LHC via $WZ$ scattering processes and explore the sensitivities to these resonances for the expected future LHC luminosities. The electroweak chiral Lagrangian and the Inverse Amplitude…

High Energy Physics - Phenomenology · Physics 2019-02-04 Rafael L. Delgado , A. Dobado , D. Espriu , C. Garcia-Garcia , M. J. Herrero , X. Marcano , J. J. Sanz-Cillero

In the spirit of some earlier work on the construction of vector coherent states over matrix domains, we compute here such states associated to some physical Hamiltonians. In particular, we construct vector coherent states of the…

Quantum Physics · Physics 2009-11-10 S. Twareque Ali , F. Bagarello

Light scalar hadrons can be understood as dynamically generated resonances. These arise as `companion poles' in the propagators of quark-antiquark seed states when accounting for meson-loop contributions to the self-energies of the latter.…

High Energy Physics - Phenomenology · Physics 2016-01-13 Thomas Wolkanowski , Francesco Giacosa , Dirk H. Rischke

After some short introductory remarks on particular issues on the vector mesons in nuclei, in this paper we present a short review of recent developments concerning the interaction of vector mesons with baryons and with nuclei from a modern…

Nuclear Theory · Physics 2012-10-16 E. Oset , A. Ramos , E. J. Garzon , R. Molina , L. Tolos , C. W. Xiao , J. J. Wu , B. S. Zou

In this manuscript we study the vector - vector interaction within the hidden gauge formalism in a coupled channel unitary approach. In the sector $C=1,S=1,J=2$ we get a pole in the T-matrix around $2572$ MeV that we identify with the…

High Energy Physics - Phenomenology · Physics 2014-11-20 R. Molina , T. Branz , E. Oset

We have recently studied coupled channel interactions of vector and pseudoscalar mesons with octet baryons having total strangeness null and spin-parity $1/2^-$. We, thus, considered $\pi N$, $\eta N$, $K \Lambda$, $K \Sigma$, $\rho N$,…

Nuclear Theory · Physics 2015-06-17 K. P. Khemchandani , A. Martínez Torres , H. Nagahiro , A. Hosaka

We present a study of the many-body interaction between a $D^*$ and multi-$\rho$. We use an extrapolation to SU(4) of the hidden gauge formalism, which produced dynamically the resonances $f_2(1270)$ in the $\rho\rho$ interaction and…

High Energy Physics - Phenomenology · Physics 2013-05-30 C. W. Xiao , M. Bayar , E. Oset

An unspecified strong dynamics may give rise to composite vectors sufficiently light that their interactions, among themselves or with the electroweak gauge bosons, be approximately described by an effective Lagrangian invariant under…

High Energy Physics - Phenomenology · Physics 2015-03-13 Riccardo Barbieri , Antonio E. Carcamo , Gennaro Corcella , Riccardo Torre , Enrico Trincherini

We show that the $K^*_2(1430)$, $K^*_3(1780)$, $K^*_4(2045)$, $K^*_5(2380)$ and a not yet discovered $K_6^*$ resonance are basically molecules made of an increasing number of $\rho(770)$ and one $K^*(892)$ mesons. The idea relies on the…

High Energy Physics - Phenomenology · Physics 2010-12-09 J. Yamagata-Sekihara , L. Roca , E. Oset

This dissertation investigates exotic hadrons with heavy-quark content that may be understood as being generated dynamically from the hadron-hadron interaction. This interaction is derived from a suitable effective Lagrangian and properly…

High Energy Physics - Phenomenology · Physics 2022-07-25 Glòria Montaña