2k citations · 11.3k across the 126 of their papers we have counts for
7 papers · 1 filter
The s-sbar and K-Kbar nature of f_0(980) in D_s decays
A. Deandrea, R. Gatto, G. Nardulli +2
We examine the D_s -> f_0(980) pi amplitude through a constituent quark-meson model, incorporating heavy quark and chiral symmetries, finding a good agreement with the recent E791…
How can one understand the lightest scalars, especially the sigma
N. A. Tornqvist, A. D. Polosa
We discuss how the a_0(980), f_0(980), K^*_0(1430) and particularly the broad sigma resonance can be understood within a coupled channel framework, which includes all light two-pse…
The light scalars, especially the sigma, in charm decay and elsewhere
N. A. Tornqvist, A. D. Polosa
We discuss how the lightest scalars, in particular the broad sigma resonance, can be understood as unitarized (qbar q) states within a unitarized quark model (UQM). The bare (qbar…
B->rho pi decays, resonant and nonresonant contributions
A. Deandrea, A. D. Polosa
We point out that a new contribution to B decays to three pions is relevant in explaining recent data from the CLEO and BABAR collaborations, in particular the results on quasi-two…
Predicting D -> sigma pi
R. Gatto, G. Nardulli, A. D. Polosa +1
We examine the D -> sigma pi amplitude through a constituent quark-meson model, incorporating heavy quark and chiral symmetries, finding a good agreement with the recent E791 data…
Footprints of a Broad (600) in Weak-Interaction Processes
V. Elias, A. D. Polosa, M. D. Scadron +1
We explore how chiral-symmetry constraints on weak-interaction matrix elements suggest the existence of an intermediate state sigma in several different weak-interaction processes.…