@article{871e0039756b4602ae60c7e9430838c0,
title = "First measurement of direct photoproduction of the a2(1320)0 meson on the proton",
abstract = "We present the first measurement of the reaction γp→a2(1320)0p in the photon energy range 3.5-5.5GeV and four-momentum transfer squared 0.2<-t<2.0GeV2. Data were collected with the CEBAF Large Acceptance Spectrometer detector at the Thomas Jefferson National Accelerator Facility. The a2 resonance was detected by measuring the reaction γp→π0ηp and reconstructing the π0η invariant mass. The most prominent feature of the differential cross section is a dip at-t≈0.55GeV2. This can be described in the framework of Regge phenomenology, where the exchange degeneracy hypothesis predicts a zero in the reaction amplitude for this value of the four-momentum transfer.",
author = "{The CLAS Collaboration} and A. Celentano and M. Battaglieri and {De Vita}, R. and L. Marsicano and V. Mathieu and A. Pilloni and A. Szczepaniak and Adhikari, {K. P.} and S. Adhikari and Amaryan, {M. J.} and G. Angelini and H. Atac and L. Barion and I. Bedlinskiy and Fatiha Benmokhtar and A. Bianconi and Biselli, {A. S.} and F. Boss{\`u} and S. Boiarinov and Briscoe, {W. J.} and Brooks, {W. K.} and D. Bulumulla and Burkert, {V. D.} and Carman, {D. S.} and Carvajal, {J. C.} and P. Chatagnon and T. Chetry and G. Ciullo and L. Clark and Cole, {P. L.} and M. Contalbrigo and O. Cortes and V. Crede and R. Cruz-Torres and A. D'Angelo and N. Dashyan 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",
note = "Funding Information: This work was supported by the U.S. Department of Energy (DOE), the U.S. National Science Foundation, the U.S. Jeffress Memorial Trust, the Physics and Astronomy Department, the Office of Research and Economic Development at Mississippi State University, the United Kingdom's Science and Technology Facilities Council (STFC), the Italian Istituto Nazionale di Fisica Nucleare; the French Institut National de Physique Nucl{\'e}aire et de Physique des Particules, the French Centre National de la Recherche Scientifique, and the National Research Foundation of Korea. This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under Contract No. DE-AC05-06OR23177. V.M. was supported by Comunidad Aut{\'o}noma de Madrid through Programa de Atracci{\'o}n de Talento Investigador 2018 (Modalidad 1). Publisher Copyright: {\textcopyright} 2020 American Physical Society.",
year = "2020",
month = sep,
doi = "10.1103/PhysRevC.102.032201",
language = "English (US)",
volume = "102",
journal = "Physical Review C",
issn = "2469-9985",
publisher = "American Physical Society",
number = "3",
}