Accès ouvert déclaré 2025 article

Suppression of neutral-pion production in deep-inelastic scattering off nuclei with the CLAS detector

T. Mineeva, W. K. Brooks, A. El Alaoui, H. Hakobyan, K. Joo, J. A. López, Orlando Javier Soto Sandoval, P. Achenbach, Z. Akbar, J. S. Alvarado, W. R. Armstrong, M. Arratia, H. Ataç, Harutyun Avagyan, C. Ayerbe Gayoso, L. Baashen, L. Barion, M. Bashkanov, I. Bedlinskiy, Bruno Benkel, F. Benmokhtar, A. Bianconi, A. S. Biselli, F. Bossú, S. Boiarinov, Kai-Thomas Brinkmann, W. J. Briscoe, V. D. Burkert, T. Cao, R. Capobianco, D. S. Carman, J. C. Carvajal, A. Celentano, P. Chatagnon, V. Chesnokov, T. Chetry, G. Ciullo, P. L. Cole, M. Contalbrigo, G. Costantini, A. D’Angelo, N. Dashyan, R. De Vita, M. Defurne, A. Deur, S. Diehl, C. Djalali, R. Dupré, H. Egiyan, L. El Fassi, P. Eugenio, S. Fegan, A. Filippi, G. Gavalian, G. P. Gilfoyle, F. X. Girod, A. A. Golubenko, G. Gosta, R. W. Gothe, K. A. Griffioen, L. Guo, K. Hafidi, M. Hattawy, F. Hauenstein, T. B. Hayward, D. Heddle, A. Hobart, M. Holtrop, Ying‐Chao Hung, Y. Ilieva, D. G. Ireland, E. L. Isupov, H. S. Jo, D. Keller, A. Khanal, Md. Al-Amin Khandaker, W. Kim, F. J. Klein, V. Klimenko, Á. Kripkó, V. Kubarovsky, S. E. Kuhn, L. Lanza, M. Leali, S. Lee, P. Lenisa, X. Li, I. J. D. MacGregor, D. Marchand, B. McKinnon, S. Migliorati, R. G. Milner, M. Mirazita, V. Mokeev, P. Moran, C. Muñoz Camacho, P. Nadel-Turonski, K. Neupane, D. Nguyen, S. Niccolai, G. Niculescu, M. Osipenko, A. Ostrovidov, M. Ouillon, P. Pandey, M. Paolone, L. L. Pappalardo, R. Paremuzyan, E. Pasyuk, Sebouh J. Paul, W. Phelps, N. Pilleux, M. Pokhrel, J. Poudel, J. W. Price, Y. Prok, Amandine Radic, N. Ramasubramanian, T. Reed, J Richards, M. Ripani, J. Ritman, G. Rosner, F. Sabatié, C. Salgado, S. Schadmand, A. Schmidt, R. A. Schumacher, M. B. C. Scott, E. V. Shirokov, U. Shrestha, D. Sokhan, N. Sparveris, Marco Spreafico, S. Stepanyan, I. I. Strakovsky, S. Strauch, J. A. Tan, N. Trotta, R. Tyson, M. Ungaro, S. Vallarino, L. Venturelli, H. Voskanyan, E Voutier, D. P. Watts, L. B. Weinstein, R. Williams, R. Wishart, Michael Wood, M. Yurov, N. Zachariou, M. Źurek

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71Institutions déclarées

14Pays d’affiliation déclarés

Résumé fourni par la source

We present the first threefold differential measurement for neutral-pion multiplicity ratios produced in semi-inclusive deep-inelastic electron scattering on carbon, iron, and lead nuclei normalized to deuterium from CLAS at Jefferson Lab. We found that the neutral-pion multiplicity ratio is maximally suppressed for the leading hadrons (energy fraction z → 1), suppression varying from 25% in carbon up to 75% in lead. An enhancement of the multiplicity ratio at low z and high p T 2 is observed, suggesting an interconnection between these two variables. This behavior is qualitatively similar to the previous twofold differential measurement of charged pions by the HERMES Collaboration and, recently, by CLAS Collaboration. The largest enhancement was observed at high p T 2 for heavier nuclei, namely, iron and lead, while the smallest enhancement was observed for the lightest nucleus, carbon. This behavior suggests a competition between partonic multiple scattering, which causes enhancement, and hadronic inelastic scattering, which causes suppression.

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DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref: Suppression of neutral-pion production in deep-inelastic scattering off nuclei with the CLAS detector
Date Crossref: 04/09/2025
Éditeur: American Physical Society (APS)
Type: journal-article

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Institutions déclarées

Valparaiso University University of La Serena University of New Hampshire University of New Hampshire at Manchester Millennium Institute Millennium Science Initiative Thomas Jefferson National Accelerator Facility Universidad Técnica Federico Santa María University of Connecticut National Nuclear Energy Agency of Indonesia National Research and Innovation Agency Centre National de la Recherche Scientifique Université Paris-Saclay Institut National de Physique Nucléaire et de Physique des Particules Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Argonne National Laboratory University of California, Riverside Temple College Temple University William & Mary Williams (United States)Florida International University Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara University of York Kurchatov Institute Duquesne University Istituto Nazionale di Fisica Nucleare, Sezione di Pavia University of Brescia Fairfield University Commissariat à l'Énergie Atomique et aux Énergies Alternatives CEA Paris-Saclay Institut de Recherche sur les Lois Fondamentales de l'Univers Justus-Liebig-Universität Gießen George Washington University Istituto Nazionale di Fisica Nucleare, Sezione di Genova Lomonosov Moscow State University Institute of Nuclear Physics Ohio University Mississippi State University University of Ferrara Lamar University University of Rome Tor Vergata Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata A. Alikhanyan National Laboratory University of South Carolina Florida State University Istituto Nazionale di Fisica Nucleare, Sezione di Torino University of Richmond Dominion University College Old Dominion University Christopher Newport University University of Glasgow Kyungpook National University University of Virginia Idaho State University University of America Catholic University of America Massachusetts Institute of Technology University of Insubria Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati James Madison University New Mexico State University California State University System California State University, Dominguez Hills GSI Helmholtz Centre for Heavy Ion Research Forschungszentrum Jülich Max Planck Institute for Nuclear Physics Norfolk State University Carnegie Mellon University Rensselaer Polytechnic Institute Canisius College

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Sujets associés

Particle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions Research

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