Accès ouvert déclaré 2024 preprint

Machine Learning-Assisted Measurement of Lepton-Jet Azimuthal Angular Asymmetries in Deep-Inelastic Scattering at HERA

V. Andreev, M. Arratia, A. Baghdasaryan, A. Baty, K. Begzsuren, A. E. Bolz, V. Boudry, G. Brandt, D. Britzger, A. Buniatyan, L. Bystritskaya, K. Černý, V. Chekelian, Z Chen, J. Cvach, K. Daum, Abhay Deshpande, C. Diaconu, A. Drees, G. Eckerlin, S. Egli, E. Elsen, L. Favart, A. Fedotov, J. Feltesse, M. Fleischer, A. Fomenko, C. Gal, J. Gayler, L. Goerlich, N. Gogitidze, M. Gouzevitch, C. Grab, T. Greenshaw, G. Grindhammer, D. Haidt, J. Hessler, J. Hladký, D. Hoffmann, R. Horisberger, T. Hreus, Florian A. Huber, Michel Jacquet, X. Janssen, J. Katzy, C Kiesling, M. Klein, C. Kleinwort, R. Kogler, P. Kostka, J. Kretzschmar, D. Krücker, K. Krüger, W. Lange, P. Laycock, S. Levonian, Wěi Li, J. Lin, K. Lipka, B. List, Jenny List, B. Łobodziński, E. Malinovski, A. Mehta, Jutta Meyer, S. Mikocki, K. Müller, Benjamin Nachman, T. Naumann, C. Niebuhr, G. Nowak, D. Ozerov, S Park, C. Pascaud, E Perez, A. Petrukhin, I. Pićurić, D. Pitzl, V. Radescu, N. Raicevic, T. Ravdandorj, Daniel Reichelt, P. Reimer, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, M. Rotaru, M. Sauter, E. Sauvan, S. Schmitt, G. Schnell, L. Schoeffel, A. Schöning, F Sefkow, S. Shushkevich, Y. Soloviev, P. Sopicki, D. South, A. Specka, M. Steder, B. Stella, U Straumann, C. Sun, T. Sykora, F. Torales Acosta, D. Traynor, B. Tseepeldorj, Z. Tu, G. Tustin, A. Valkárová, P. Van Mechelen, D. Wegener, E. Wünsch, J. Žáček, J. Zhang, Z. Zhang, R. Žlebčík, H. Zohrabyan, F Zomer

4Citations signalées, ce qui n’est pas une note de qualité

55Institutions déclarées

16Pays d’affiliation déclarés

Rattachement africain : us, am, mn, de, fr, gb, mx, cz, cn, ch, be, pl, in, me, ro, es. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

In deep-inelastic positron-proton scattering, the lepton-jet azimuthal angular asymmetry is measured using data collected with the H1 detector at HERA. When the average transverse momentum of the lepton-jet system, $\lvert \vec{P}_\perp \rvert $, is much larger than the total transverse momentum of the system, $\lvert \vec{q}_\perp \rvert$, the asymmetry between parallel and antiparallel configurations, $\vec{P}_\perp$ and $\vec{q}_\perp$, is expected to be generated by initial and final state soft gluon radiation and can be predicted using perturbation theory. Quantifying the angular properties of the asymmetry therefore provides an additional test of the strong force. Studying the asymmetry is important for future measurements of intrinsic asymmetries generated by the proton's constituents through Transverse Momentum Dependent (TMD) Parton Distribution Functions (PDFs), where this asymmetry constitutes a dominant background. Moments of the azimuthal asymmetries are measured using a machine learning method for unfolding that does not require binning.

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

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Les institutions déclarées

University of California, Riverside A. Alikhanyan National Laboratory University of Illinois Chicago Mongolian Academy of Sciences Institute of Physics and Technology Deutsches Elektronen-Synchrotron DESY Laboratoire Leprince-Ringuet Centre National de la Recherche Scientifique École Polytechnique University of Göttingen Max Planck Institute for Physics University of Birmingham Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional Palacký University Olomouc Shandong University Czech Academy of Sciences FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic University of Liverpool University of Wuppertal Brookhaven National Laboratory Centre de physique des particules de Marseille Stony Brook University Aix-Marseille Université Institut National de Physique Nucléaire et de Physique des Particules Paul Scherrer Institute University of Antwerp Interuniversity Institute for High Energies Commissariat à l'Énergie Atomique et aux Énergies Alternatives CEA Paris-Saclay Institut de Recherche sur les Lois Fondamentales de l'Univers Université Paris-Saclay Institute of Nuclear Physics, Polish Academy of Sciences ETH Zurich Lancaster University University of Zurich Heidelberg University Lawrence Berkeley National Laboratory Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Purdue University West Lafayette Argonne National Laboratory Queen Mary University of London University of Tennessee at Knoxville Rice University RWTH Aachen University National Institute of Science Education and Research European Organization for Nuclear Research University of Siegen University of Montenegro Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering Rutherford Appleton Laboratory Laboratoire d’Annecy de Physique des Particules University of the Basque Country Charles University Ulaanbaatar International University TU Dortmund University

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

Les sujets associés

Particle physics theoretical and experimental studiesComputational Physics and Python ApplicationsHigh-Energy Particle Collisions Research

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