@article{806f4915890f4df6844d9604122a48f6,
title = "First results on nucleon resonance photocouplings from the γp → π+π−p reaction",
abstract = "We report the first experimental measurements of the nine 1-fold differential cross sections for the γp→π+π−p reaction, obtained with the CLAS detector at Jefferson Laboratory. The measurements cover the invariant mass range of the final state hadrons from 1.6 GeV <W< 2.0 GeV. For the first time the photocouplings of all prominent nucleon resonances in this mass range have been extracted from this exclusive channel. Photoproduction of two charged pions is of particular importance for the evaluation of the photocouplings for the Δ(1620)1/2−, Δ(1700)3/2−, N(1720)3/2+, and Δ(1905)5/2+ resonances, which have dominant decays into the ππN final states rather than the more extensively studied single meson decay channels.",
keywords = "Baryon state, Resonance photocouplings, Two pion photoproduction",
author = "{CLAS Collaboration} and E. Golovatch and Burkert, {V. D.} and Carman, {D. S.} and Gothe, {R. W.} and K. Hicks and Ishkhanov, {B. S.} and Mokeev, {V. I.} and E. Pasyuk and S. Adhikari and Z. Akbar and Amaryan, {M. J.} and H. Avakian and J. Ball and L. Barion and M. Bashkanov and M. Battaglieri and I. Bedlinskiy and Biselli, {A. S.} and S. Boiarinov and Briscoe, {W. J.} and F. Cao and A. Celentano and P. Chatagnon and T. Chetry and G. Ciullo and L. Clark and Clary, {B. A.} and Cole, {P. L.} and M. Contalbrigo and V. Crede and A. D'Angelo and N. Dashyan and {De Vita}, R. and {De Sanctis}, E. and M. Defurne and A. Deur and S. Diehl and C. Djalali and M. Dugger and R. Dupre and H. Egiyan and M. Ehrhart and {El Alaoui}, A. and {El Fassi}, L. and L. Elouadrhiri and P. Eugenio and G. Fedotov and R. Fersch and A. Filippi and Y. Ghandilyan",
note = "Publisher Copyright: {\textcopyright} 2018 The Author",
year = "2019",
month = jan,
day = "10",
doi = "10.1016/j.physletb.2018.10.013",
language = "English (US)",
volume = "788",
pages = "371--379",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
}