Photoproduction of two charged pions off protons in the resonance region

Photoproduction of charged pions pairs off protons is studied within the invariant masses of the final state hadrons from 1.6 to 2.4 GeV at the Thomas Jefferson National Accelerator Facility with the CLAS detector. The total and differential cross sections and spin-density matrix elements are presented for the isobars $p{\ensuremath{\rho}}^{0}(770), \mathrm{\ensuremath{\Delta}}{(1232)}^{++}{\ensuremath{\pi}}^{\ensuremath{-}}$, and $\mathrm{\ensuremath{\Delta}}{(1232)}^{0}{\ensuremath{\pi}}^{+}$. The data are included in the Bonn-Gatchina coupled-channel analysis and provide the information necessary to determine the branching fractions of $N\ensuremath{\rho}(770)$ decays for most known ${N}^{*}$ and ${\mathrm{\ensuremath{\Delta}}}^{*}$ resonances. For the first time, the $N\ensuremath{\rho}$ branching ratios are obtained here from an event-based likelihood to $\ensuremath{\gamma}p\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}p$.

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Publication Details

Journal
Physical review. C
Published
2025-03-31
DOI
https://doi.org/10.1103/physrevc.111.035203
Citations
2
Primary Topic
Particle physics theoretical and experimental studies
Type
article
Field-Weighted Citation Impact
3.74

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article

Photoproduction of two charged pions off protons in the resonance region

M. Battaglieri, S. Diehl, R. A. Schumacher, V. Kubarovsky et al.
2 citations
Physical review. C
Particle physics theoretical and experimental studies
3.74
article

Photoproduction of two charged pions off protons in the resonance region

M. Battaglieri, S. Diehl, R. A. Schumacher, V. Kubarovsky, S. J. Paul, M. J. Amaryan, P. Achenbach, Nikolaos Sparveris, L. El Fassi, M. H. Wood, M. Bashkanov, M. Żurek, W. Kim, V. Klimenko, C. Salgado, T. Mineeva, P. Nadel-Turonski, D. S. Carman, P. Eugenio, D. P. Watts, P. Chatagnon, L. Elouadrhiri, A. El Alaoui, T. Reed, F. Benmokhtar, R. Tyson, D Martiryan, A. Kripko, A. Sarantsev, H. Ataç, G. Gavalian, K. Gates, D. I. Glazier, J. C. Carvajal, B. McKinnon, V. Credé, S. Fegan, D. G. Ireland, E. Pasyuk, Z. W. Zhao, J. Richards, S. Boiarinov, E. Voutier, E. L. Isupov, A. D’Angelo, V. Mokeev, N. A. Baltzell, M. Spreafico, H. Hakobyan, Bruno Benkel, A. Schmidt, K. Nikonov, J. S. Alvarado, E. Klempt, M. Ouillon, K. Joo, M. Contalbrigo, W. J. Briscoe, M. Paolone, L. Barion, Haoyu Jiang, M. Pokhrel, I. J. D. MacGregor, K.-Th. Brinkmann, M. Osipenko, L. Baashen, M. Khandaker, G. Niculescu, T. Vittorini, D. Matamoros, L. Xu, L. Lanza, K. Neupane, A. Bianconi, A. Deur, R. W. Gothe, Y. Prok, Volker Burkert, M. Holtrop, J. A. Tan, P. Pandey, S. Schadmand, W. Phelps, Y. G. Sharabian, N. Zachariou, E. V. Shirokov, A. Filippi, L. L. Pappalardo, Lincheng Guo, P. Lenisa, H. S. Jo, F. J. Klein, V. Mascagna, D. Heddle, J. W. Price, A.A Rusova, G. Rosner, A. S. Biselli, H. Voskanyan, K. Hafidi, Y. Ilieva, S. Niccolai, M. Ripani, L. Venturelli, S. Shrestha, S. Strauch, A. I. Ostrovidov, M. Hattawy, F. Bossú, M. Defurne, M. Ungaro, X. Wei, C. Munoz Camacho, A. Hobart, R. De Vita, T. Cao, C. Djalali, H. Egiyan, Santiago Rafael, N. Dashyan, R. Capobianco, Amandine Radic, R. Dupré
article en
2 citations

Abstract

Photoproduction of charged pions pairs off protons is studied within the invariant masses of the final state hadrons from 1.6 to 2.4 GeV at the Thomas Jefferson National Accelerator Facility with the CLAS detector. The total and differential cross sections and spin-density matrix elements are presented for the isobars $p{\ensuremath{\rho}}^{0}(770), \mathrm{\ensuremath{\Delta}}{(1232)}^{++}{\ensuremath{\pi}}^{\ensuremath{-}}$, and $\mathrm{\ensuremath{\Delta}}{(1232)}^{0}{\ensuremath{\pi}}^{+}$. The data are included in the Bonn-Gatchina coupled-channel analysis and provide the information necessary to determine the branching fractions of $N\ensuremath{\rho}(770)$ decays for most known ${N}^{*}$ and ${\mathrm{\ensuremath{\Delta}}}^{*}$ resonances. For the first time, the $N\ensuremath{\rho}$ branching ratios are obtained here from an event-based likelihood to $\ensuremath{\gamma}p\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}p$.

Physical review. CVol. 111(3)
New Mexico State University (US), Norfolk State University (US), Florida State University (US), University of California, Riverside (US), University of Rome Tor Vergata (IT), James Madison University (US), Fairfield University (US), California State University System (US), Argonne National Laboratory (US), A. Alikhanyan National Laboratory (AM), University of Bonn (DE), University of Connecticut (US), University of South Carolina (US), University of New Hampshire (US), Duquesne University (US), University of America (US), GSI Helmholtz Centre for Heavy Ion Research (DE), Duke University (US), Christopher Newport University (US), University of New Hampshire at Manchester (US), George Washington University (US), Florida International University (US), Lomonosov Moscow State University (RU), Justus-Liebig-Universität Gießen (DE), University of Ferrara (IT), Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR), Université Paris-Saclay (FR), Kurchatov Institute (RU), Temple College (US), California State University, Dominguez Hills (US), Thomas Jefferson National Accelerator Facility (US), Kyungpook National University (KR), Dominion University College (GH), Institute of Nuclear Physics (UZ), Istituto Nazionale di Fisica Nucleare, Sezione di Torino (IT), Ohio University (US), Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Pavia (IT), Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Genova (IT), CEA Paris-Saclay (FR), Petersburg Nuclear Physics Institute (RU), Universidad Técnica Federico Santa María (EC), Institut de Recherche sur les Lois Fondamentales de l'Univers (FR), University of Virginia (US), University of York (GB), Massachusetts Institute of Technology (US), Carnegie Mellon University (US), University of Glasgow (GB), University of Brescia (IT), Canisius College (US), Old Dominion University (US), Temple University (US), Catholic University of America (US), Mississippi State University (US)
National Science Foundation, U.S. Department of Energy, Scottish Universities Physics Alliance, Deutsche Forschungsgemeinschaft, National Research Foundation of Korea, Centre National de la Recherche Scientifique, Russian Science Foundation, State Committee of Science, Science and Technology Facilities Council, Comisión Nacional de Investigación Científica y Tecnológica, Nuclear Physics
Openalex Percentile: Top 9%
Particle physics theoretical and experimental studies
3.74
DOIOpen Access PDFOpenAlex
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