TY  - JOUR
AU  - Hiller Blin, A. N.
AU  - Ledwig, T.
AU  - Vicente Vacas, M. J.
PY  - 2016
DA  - 2016//
TI  - Delta(1232) resonance in the (gamma)over-right-arrowp -> p pi(0) reaction at threshold
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 094018
EP  - 19pp
VL  - 93
IS  - 9
PB  - Amer Physical Soc
AB  - We calculate the neutral pion photoproduction on the proton near threshold in covariant baryon chiral perturbation theory, including the Delta(1232) resonance as an explicit degree of freedom, up to chiral order p(7/2) in the delta counting. We compare our results with recent low-energy data from the Mainz Microtron for angular distributions and photon asymmetries. The convergence of the chiral series of the covariant approach is found to improve substantially with the inclusion of the Delta(1232) resonance.
SN  - 2470-0010
UR  - http://arxiv.org/abs/1602.08967
UR  - https://doi.org/10.1103/PhysRevD.93.094018
DO  - 10.1103/PhysRevD.93.094018
LA  - English
N1  - WOS:000376256400002
ID  - HillerBlin_etal2016
ER  -