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Scalar-Pseudoscalar scattering and pseudoscalar resonances
M. Albaladejo, J. A. Oller
The interactions between the f_0(980) and a_0(980) scalar resonances and the lightest pseudoscalar mesons are studied. We first obtain the interacting kernels, without including an…
Hadron resonances generated from the dynamics of the lightest scalar ones
J. A. Oller, J. M. Alarcon, M. Albaladejo +2
We have studied the interactions of the scalar resonances f_0(980) and a_0(980) with the vector resonance ϕ(1020) and with the lightest pseudoscalars π, K, ηand η'. We first obtain…
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…
Chiral effective field theory for nuclear matter
A. Lacour, U. -G. Meissner, J. A. Oller
We report on the recent developments of a new effective field theory for nuclear matter [1,2,3]. We present first the nuclear matter chiral power counting that takes into account b…
The phi(1020) a0(980) S-wave scattering and hints for a new vector-isovector resonance
L. Alvarez-Ruso, J. A. Oller, J. M. Alarcon
We have studied the phi(1020)a0(980) S-wave scattering at threshold energies employing chiral Lagrangians coupled to vector mesons by minimal coupling. The interaction is described…
The chiral quark condensate and pion decay constant in nuclear matter at next-to-leading order
A. Lacour, J. A. Oller, U. -G. Meißner
Making use of the recently developed chiral power counting for the physics of nuclear matter [1,2], we evaluate the in-medium chiral quark condensate up to next-to-leading order fo…