Accès ouvert déclaré 2023 article

Double J/ψ production in pion-nucleon scattering at COMPASS

G. D. Alexeev, M. Alexeev, A. Amoroso, V. Andrieux, V. Anosov, K. Augsten, W. Augustyniak, C.D.R. Azevedo, B. Badełek, M. Ball, J. Barth, R. Beck, Y. Bedfer, J. Bernhard, M. Bodlak, F. Bradamante, A. Bressan, V.E. Burtsev, W. C. Chang, C. Chatterjee, M. Chiosso, А. Г. Чумаков, S. U. Chung, A. Cicuttin, P. M. M. Correia, M.L. Crespo, D. D’Ago, S. Dalla Torre, S. Dasgupta, I. Denisenko, О. Денисов, S.V. Donskov, N. Doshita, Ch. Dreisbach, W. Dünnweber, R. R. Dusaev, D. Ecker, A. Efremov, D. Eremeev, P.D. Eversheim, P. Faccioli, M. Faessler, M. Finger, H. Fischer, K.J. Flöthner, W. Florian, C. Franco, V. Frolov, L.G. Garcia Ordòñez, F. Gautheron, O.P. Gavrichtchouk, S. Gerassimov, J. Giarra, D. Giordano, M. Gorzellik, A. Gridin, S. Groote, M. Große Perdekamp, B. Grube, M. Grüner, A. Guskov, D. von Harrach, M. Hoffmann, N. Horikawa, N. d’Hose, C.-Y. Hsieh, S. Huber, S. Ishimoto, A. Ivanov, T. Iwata, M. Jandek, V. Jary, R. Joosten, E. Kabuß, F. Kaspar, A. Kerbizi, B. Ketzer, A. Khatun, G.V. Khaustov, Yu. Khokhlov, Ф. Клейн, J.H. Koivuniemi, V. N. Kolosov, K. Kondo Horikawa, I. Konorov, В.Ф. Константинов, A. Korzenev, Sergey Koshkarev, A.M. Kotzinian, O. Kouznetsov, Zdeněk Král, F. Krinner, F. Kunne, K. Kurek, R. Kurjata, A. Kveton, K. Lavickova, S. Levorato, Y.-S. Lian, J. Lichtenstadt, P.-J. Lin, R. Longo, Valery E. Lyubovitskij, A. Maggiora, A. Magnon, N. C. R. Makins, N. Makke, G.K. Mallot, A. Maltsev, S.A. Mamon, A. Martin, J. Marzec, J. Matoušek, T. Matsuda, G. Mattson, C. Menezes Pires, F. R. Metzger, Mareike Meyer, W. Meyer, Yu.V. Mikhailov, M. Mikhasenko, E. Mitrofanov, Y. Miyachi, Romina Molina, A. Nagaytsev, C. Naim, D. Neyret, J. Nový, W.‐D. Nowak, G. Nukazuka, А.G. Оlshevsky, M. Ostrick, D. Panzieri, B. Parsamyan, S. Paul, H. Pekeler, Jing Peng, M. Pešek, D. V. Peshekhonov, M. Pešková, S. Platchkov, J. Pochodzalla, V. A. Polyakov, J. Pretz, M. Quaresma, C. Quintans, G. Reicherz, T. Rudnicki, D.I. Ryabchikov, A. Rychter, V. D. Samoylenko, A. Sandacz, S. Sarkar, I. Savin, G. Sbrizzai, H. Schmieden, A. Selyunin, Konstantin Sharko, L. Sinha, M. Slunečka, D. Spülbeck, A. Srnka, M. Stolarski, O. Šubrt, M. Šulc, H. Suzuki, S. Tessaro, F. Tessarotto, A. Thiel, Jan Tomsa, F. Tosello, A. Townsend, T. Triloki, V. Tskhay, B. Valinoti, B.M. Veit, J.F.C.A. Veloso, Bartolomeo Della Ventura, Miroslav Virius, Mathias Wagner, S. Wallner, К. Заремба, M. Zavertyaev, M. Zemko, M. Ziembicki

2Citations signalées, ce qui n’est pas une note de qualité

40Institutions déclarées

14Pays d’affiliation déclarés

Rattachement africain : ru, it, us, de, cz, pl, pt, fr, ch, tw, in, jp, ee, il. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

We present the study of the production of double J / ψ mesons using COMPASS data collected with a 190 GeV / c π − beam scattering off NH 3 , Al and W targets. Kinematic distributions of the collected double J / ψ events are analysed, and the double J / ψ production cross section is estimated for each of the COMPASS targets. The NH 3 results are compared to predictions from single- and double-parton scattering models as well as the pion intrinsic charm and the tetraquark exotic resonance hypotheses. It is demonstrated that the single parton scattering production mechanism gives the dominant contribution that is sufficient to describe the data. An upper limit on the double intrinsic charm content of the pion is evaluated. No significant signatures that could be associated with exotic tetraquarks are found in the double J / ψ mass spectrum .

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 ; titre concordant.

Titre Crossref: Double J/ψ production in pion-nucleon scattering at COMPASS
Date Crossref: 01/03/2023
Éditeur: Elsevier BV
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

Joint Institute for Nuclear Research Istituto Nazionale di Fisica Nucleare, Sezione di Torino University of Turin University of Illinois Urbana-Champaign University of Bonn Czech Technical University in Prague National Centre for Nuclear Research University of Aveiro University of Warsaw Charles University Johannes Gutenberg University Mainz Commissariat à l'Énergie Atomique et aux Énergies Alternatives Université Paris-Saclay CEA Paris-Saclay Institut de Recherche sur les Lois Fondamentales de l'Univers European Organization for Nuclear Research LIP - Laboratory of Instrumentation and Experimental Particle Physics Istituto Nazionale di Fisica Nucleare, Sezione di Trieste University of Trieste The Abdus Salam International Centre for Theoretical Physics (ICTP)National Research Tomsk State University Tomsk Polytechnic University Institute of Physics, Academia Sinica Technical University of Munich Calcutta Research Group Kurchatov Institute Institute for High Energy Physics Yamagata University University of Lisbon University of Freiburg Ruhr University Bochum P.N. Lebedev Physical Institute of the Russian Academy of Sciences University of Tartu Nagoya University Warsaw University of Technology Tel Aviv University University of Miyazaki Ludwig-Maximilians-Universität München Czech Academy of Sciences, Institute of Scientific Instruments Technical University of Liberec

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

Les sujets associés

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

Lire en accès ouvert Consulter la publication primaire Ouvrir le DOI