Journal article

Publication year: 2017

Pages: 274-278

Journal: Physics Letters B

Volume number: 772

ISSN: 0370-2693

eISSN: 1873-2445

Open access status: Gold

DOI Link: https://doi.org/10.1016/j.physletb.2017.06.063

Publisher: Elsevier

Abstract: 
Compton scattering off the proton in the third resonance region is analyzed for the first time, owing to the full combined analysis of pion- and photo-induced reactions in a coupled-channel effective Lagrangian model with K-matrix approximation. Two isospin I= 3/2resonances D-33(1700) and F-35(1930) are found to be essential in the range of 1.6-1.8 GeV. The recent beam asymmetry data of Compton scattering from the GRAAL facility are used to determine the helicity couplings of these resonances, and strong constraints are coming also from pi N and K Sigma photoproduction data. The possible spin and parity of new narrow resonances is discussed. (C) 2017 The Author(s). Published by Elsevier B.V.

Harvard Citation style: Cao, X. and Lenske, H. (2017) Compton scattering off proton in the third resonance region, Physics Letters B, 772, pp. 274-278. https://doi.org/10.1016/j.physletb.2017.06.063

APA Citation style: Cao, X., & Lenske, H. (2017). Compton scattering off proton in the third resonance region. Physics Letters B. 772, 274-278. https://doi.org/10.1016/j.physletb.2017.06.063