Accès ouvert déclaré 2026 article

Polarization observables T and F in the γ p → π 0 p reaction at CLAS

H. Jiang, S. Strauch, I. I. Strakovsky, D. Rönchen, R. Workman, P. Achenbach, J. S. Alvarado, H. Atac, L. Baashen, N. A. Baltzell, L. Barion, M. Bashkanov, M. Battaglieri, F. Benmokhtar, A. Bianconi, A. S. Biselli, M. Bondi, F. Bossù, S. Boiarinov, K.T. Brinkmann, W. J. Briscoe, J. Brock, W. K. Brooks, V. D. Burkert, T. Cao, R. Capobianco, C. Carlin, D. S. Carman, J. C. Carvajal, P. Chatagnon, V. Chesnokov, G. Ciullo, P. L. Cole, M. Contalbrigo, V. Crede, A. D’Angelo, N. Dashyan, R. De Vita, M. Defurne, A. Deur, S. Diehl, C. Djalali, M. Dugger, R. Dupre, H. Egiyan, A. El Alaoui, L. Elouadrhiri, P. Eugenio, S. Fegan, I.P Fernando, A. Filippi, G. Gavalian, N. Gevorgyan, G. P. Gilfoyle, D. I. Glazier, R. W. Gothe, L. Guo, K. Hafidi, H. Hakobyan, M. Hattawy, T. B. Hayward, D. Heddle, A. Hobart, M. Holtrop, Yu-Chun Hung, Y. Ilieva, D. G. Ireland, E. L. Isupov, H. S. Jo, C. D. Keith, D. Keller, M. Khandaker, A. Kim, W. Kim, F. J. Klein, V. Klimenko, A. Kripko, V. Kubarovsky, L. Lanza, P. Lenisa, X. Li, K. Livingston, S. Liyanaarachchi, I. J. D. MacGregor, D. Marchand, V. Mascagna, M Maynes, M. McCracken, B. McKinnon, D. G. Meekins, T. Mineeva, V. I. Mokeev, C. Munoz Camacho, P. Nadel-Turonski, T. Nagorna, K. Neupane, D. Nguyen, S. Niccolai, M. Osipenko, A. I. Ostrovidov, M. Ouillon, P. Pandey, L. L. Pappalardo, R. Paremuzyan, E. Pasyuk, S. J. Paul, W. Phelps, J. J. Pierce, N Pilleux, S. Polcher Rafael, J. W. Price, Y. Prok, T. Reed, J. Richards, M. Ripani, B. G. Ritchie, J. Ritman, G. Rosner, A.A Rusova, S. Schadmand, A Schmidt, RA Schumacher, M. B. C. Scott, M. L. Seely, Y. G. Sharabian, E. V. Shirokov, S. Shrestha, D. Sokhan, N. Sparveris, M. Spreafico, J. A. Tan, M. Tenorio, N. Trotta, R. Tyson, M. Ungaro, D. W. Upton, S. Vallarino, L. Venturelli, H. Voskanyan, E. Voutier, Y. Wang, D. P. Watts, U Weerasinghe, X. Wei, M. H. Wood, L. Xu, N. Zachariou

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43Institutions déclarées

13Pays d’affiliation déclarés

Rattachement africain : gb, us, fr, sa, it, de, ec, ru, am, Ghana, kr, cn, cl. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

Pion photoproduction in the γ ⃗ p ⃗ → π 0 p reaction has been measured in the FROzen Spin Target (FROST) experiment at the Thomas Jefferson National Accelerator Facility. In this experiment, circularly polarized photons with energies up to 3.082 GeV impinged on a transversely polarized frozen-spin target. Final-state protons were detected in the Continuous Electron Beam Accelerator Facility (CEBAF) Large Acceptance Spectrometer. The polarization observables T and F have been extracted for W from 1445 to 2525 MeV, of which the energy range is much broader, and the precision is better than the existing measurements in higher W ranges. The data generally agree with predictions of present partial-wave analyses but also show marked differences for higher W ranges. By incorporating the present data into the databases, the Scattering Analysis Interactive Data (SAID) fits have been improved with relatively small χ 2 and significant changes in the parameters of the Δ ( 1910 ) 1 / 2 + and N ( 2190 ) 7 / 2 − have been found with the JüBo model.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.

Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.

Titre Crossref: Polarization observables <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>T</mml:mi> </mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>F</mml:mi> </mml:math> in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>γ</mml:mi> <mml:mi>p</mml:mi> <mml:mo>→</mml:mo> <mml:msup> <mml:mi>π</mml:mi> <mml:mn>0</mml:mn> </mml:msup> <mml:mi>p</mml:mi> </mml:mrow> </mml:math> reaction at CLAS
Date Crossref: 09/07/2026
Éditeur: American Physical Society (APS)
Type: journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.

Les institutions déclarées

University of Glasgow University of South Carolina George Washington University Thomas Jefferson National Accelerator Facility Université Paris-Saclay Temple College Temple University King Saud University University of York Duquesne University University of Brescia Fairfield University Rensselaer Polytechnic Institute Justus-Liebig-Universität Gießen Universidad Técnica Federico Santa María Florida International University Lomonosov Moscow State University University of Ferrara Lamar University Florida State University University of Rome Tor Vergata A. Alikhanyan National Laboratory Ohio University Arizona State University University of New Hampshire at Manchester Christopher Newport University University of Virginia University of Richmond Argonne National Laboratory Dominion University College Old Dominion University Massachusetts Institute of Technology Kyungpook National University Norfolk State University Shandong University Mississippi State University Carnegie Mellon University University of La Serena University of Tennessee at Knoxville University of California, Riverside California State University System GSI Helmholtz Centre for Heavy Ion Research Canisius College

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Les sujets associés

Nuclear physics research studiesQuantum Chromodynamics and Particle InteractionsParticle physics theoretical and experimental studies

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