TY  - JOUR
AU  - Ledwig, T.
AU  - Nieves, J.
AU  - Pich, A.
AU  - Ruiz Arriola, E.
AU  - Ruiz de Elvira, J.
PY  - 2014
DA  - 2014//
TI  - Large-N-c naturalness in coupled-channel meson-meson scattering
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 114020
EP  - 17pp
VL  - 90
IS  - 11
PB  - Amer Physical Soc
AB  - The analysis of hadronic interactions with effective field theory techniques is complicated by the appearance of a large number of low-energy constants, which are usually fitted to data. On the other hand, the large-N-c limit helps to impose natural short-distance constraints on these low-energy constants, providing a parameter reduction. A Bayesian interpretation of the expected 1/N-c accuracy allows for an easy and efficient implementation of these constraints, using an augmented chi(2). We apply this approach to the analysis of meson-meson scattering, in conjunction with chiral perturbation theory to one loop and coupled-channel unitarity, and show that it helps to largely reduce the many existing ambiguities and simultaneously provide an acceptable description of the available phase shifts.
SN  - 1550-7998
UR  - http://arxiv.org/abs/1407.3750
UR  - https://doi.org/10.1103/PhysRevD.90.114020
DO  - 10.1103/PhysRevD.90.114020
LA  - English
N1  - WOS:000348730800008
ID  - Ledwig_etal2014
ER  -