378 citations
- Universitat de ValènciaES19 papers
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- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT5 papers
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- Instituto Superior TécnicoPT4 papers
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- Instituto de Física CorpuscularES3 papers
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31 papers · 1 filter
Dynamical generation of pseudoscalar resonances
M. Albaladejo, J. A. Oller, L. Roca
We study the interactions between the f_0(980) and a_0(980) scalar resonances and the lightest pseudoscalar mesons. We first obtain the elementary interaction amplitudes, or intera…
On the nature of the K*2(1430), K*3(1780), K*4(2045), K*5(2380) and K*6 as K*--multi-rho states
J. Yamagata-Sekihara, L. Roca, E. Oset
We show that the , , , and a not yet discovered resonance are basically molecules made of an increasing number of $ρ(77…
On the ϕ(1020)f_0(980) S-wave scattering and the Y(2175) resonance
L. Alvarez-Ruso, J. A. Oller, J. M. Alarcon
We have studied the ϕ(1020)f_0(980) S-wave scattering at energies around threshold employing chiral Lagrangians coupled to vector mesons through minimal coupling. The interaction k…
Hidden gauge formalism for the radiative decays of axial-vector mesons
H. Nagahiro, L. Roca, A. Hosaka +1
The radiative decay of the axial-vector resonances into a pseudoscalar meson and a photon is studied using the vector meson Lagrangian obtained from the hidden gauge symmetry (HGS)…
Leading SU(3)-breaking corrections to the baryon magnetic moments in Chiral Perturbation Theory
L. S. Geng, J. Martin Camalich, L. Alvarez-Ruso +1
We calculate the baryon magnetic moments using covariant Chiral Perturbation Theory (PT) within the Extended-on-mass-shell (EOMS) renormalization scheme. By fitting the two avai…
S-wave meson scattering up to 2 GeV and its spectroscopy
M. Albaladejo, J. A. Oller, C. Piqueras
We have performed a thorough study of the meson-meson S-waves with isospin (I) 0 and 1/2, up to sqrt(s) ~ 2 GeV. This is the first study that includes 13 channels that have their t…