Accès ouvert déclaré 2018 article

Longitudinal double-spin asymmetry A1p and spin-dependent structure function g1p of the proton at small values of x and Q2

M. Aghasyan, M. Alexeev, G. D. Alexeev, A. Amoroso, V. Andrieux, Н. Анфимов, V. Anosov, A. Antoshkin, K. Augsten, W. Augustyniak, A. Austregesilo, C.D.R. Azevedo, B. Badełek, F. Balestra, M. Ball, J. Barth, R. Beck, Y. Bedfer, J. Bernhard, K. Bicker, E.R. Bielert, R. Birsa, M. Bodlak, P. Bordalo, F. Bradamante, A. Bressan, M. Büchele, V.E. Burtsev, L. Capozza, W. C. Chang, C. Chatterjee, M. Chiosso, I. Choi, А. Г. Чумаков, S. U. Chung, A. Cicuttin, M.L. Crespo, S. Dalla Torre, S. Dasgupta, S. Dasgupta, O.Yu. Denisov, L. Dhara, S.V. Donskov, N. Doshita, Ch. Dreisbach, W. Dünnweber, R. R. Dusaev, M. Dziewiecki, А.В. Ефремов, P.D. Eversheim, M. Faessler, A. Ferrero, M. Finger, М. Фингер, H. Fischer, C. Franco, N. du Fresne von Hohenesche, J. Friedrich, V. Frolov, E. Fuchey, F. Gautheron, O.P. Gavrichtchouk, S. Gerassimov, J. Giarra, F. Giordano, I. Gnesi, M. Gorzellik, A. Grasso, A. Gridin, M. Große Perdekamp, B. Grube, T. Grussenmeyer, A. Guskov, D. Hahne, G. Hamar, D. von Harrach, F. H. Heinsius, R. Heitz, F. Herrmann, N. Horikawa, N. d'Hose, C.-Y. Hsieh, Sebastián Huber, S. Ishimoto, A. Ivanov, T. Iwata, V. Jary, R. Joosten, P. Jörg, E. Kabuß, A. Kerbizi, B. Ketzer, G.V. Khaustov, Yu. Khokhlov, Yu. Kisselev, F. Klein, J.H. Koivuniemi, V. N. Kolosov, K. Kondo, K. Königsmann, I. Konorov, V.F. Konstantinov, A.M. Kotzinian, O. Kouznetsov, Zdeněk Král, M. Krämer, P. Kremser, F. Krinner, Z.V. Kroumchtein, Y. Kulinich, F. Kunne, K. Kurek, R. Kurjata, I.I. Kuznetsov, A. Kveton, A.A. Lednev, E.A. Levchenko, M. Levillain, S. Levorato, Y.-S. Lian, J. Lichtenstadt, R. Longo, Valery E. Lyubovitskij, M. Maggiora, A. Magnon, N. Makins, N. Makke, G.K. Mallot, S.A. Mamon, B. Marianski, A. Martin, J. Marzec, J. Matoušek, H. Matsuda, T. Matsuda, G.V. Meshcheryakov, Mareike Meyer, Wulf‐Uwe Meyer, Yu.V. Mikhailov, M. Mikhasenko, E. Mitrofanov, N. Mitrofanov, Y. Miyachi, A. Nagaytsev, F. Nerling, D. Neyret, J. Nový, W.‐D. Nowak, G. Nukazuka, A. S. Nunes, A.G. Olshevsky, И. Орлов, M. Ostrick, D. Panzieri, B. Parsamyan, S. Paul, J.-C. Peng, F. Pereira, M. Pešek, M. Pešková, D.V. Peshekhonov, N. Pierre, S. Platchkov, J. Pochodzalla, V.A. Polyakov, J. Pretz, M. Quaresma, C. Quintans, S. Ramos, C. Regali, G. Reicherz, N.S. Rogacheva, D.I. Ryabchikov, A. Rybnikov, A. Rychter, R. Salac, V.D. Samoylenko, A. Sandacz, C. Santos, S. Sarkar, I.A. Savin, T. Sawada, G. Sbrizzai, P. Schiavon, K. Schmidt, H. Schmieden, K. Schönning, E. Seder, A. Selyunin, L. Silva, L. Sinha, S. Sirtl, M. Slunecka, J. Smolík, A. Srnka, D. Steffen, M. Stolarski, O. Šubrt, M. Šulc, H. Suzuki, A. Szabelski, T. Szameitat, P. Sznajder, M. Tasevsky, S. Tessaro, F. Tessarotto, A. Thiel, J. Tomsa, F. Tosello, V. Tskhay, S. Uhl, B.I. Vasilishin, A. Vauth, J.F.C.A. Veloso, A. Vidon, Miroslav Virius, S. Wallner, T. Weisrock, M. Wilfert, R. Windmolders, J. ter Wolbeek, К. Заремба, P. Závada, M. Zavertyaev, E. Zemlyanichkina, M. Ziembicki

28Citations signalées, ce qui n’est pas une note de qualité

56Institutions déclarées

15Pays d’affiliation déclarés

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

Le résumé fourni par la source

We present a precise measurement of the proton longitudinal double-spin asymmetry A 1 p and the proton spin-dependent structure function g 1 p at photon virtualities 0.006 ( GeV / c ) 2 < Q 2 < 1 ( GeV / c ) 2 in the Bjorken x range of 4 × 10 − 5 < x < 4 × 10 − 2 . The results are based on data collected by the COMPASS Collaboration at CERN using muon beam energies of 160 GeV and 200 GeV . The statistical precision is more than tenfold better than that of the previous measurement in this region. In the whole range of x , the measured values of A 1 p and g 1 p are found to be positive. It is for the first time that spin effects are found at such low values of x .

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: Longitudinal double-spin asymmetry <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msubsup><mml:mrow><mml:mi>A</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn></mml:mrow><mml:mrow><mml:mi mathvariant="normal">p</mml:mi></mml:mrow></mml:msubsup></mml:math> and spin-dependent structure function <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.gif" overflow="scroll"><mml:msubsup><mml:mrow><mml:mi>g</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn></mml:mrow><mml:mrow><mml:mi mathvariant="normal">p</mml:mi></mml:mrow></mml:msubsup></mml:math> of the proton at small values of x and Q2
Date Crossref: 01/06/2018
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

Istituto Nazionale di Fisica Nucleare, Sezione di Trieste University of Turin Joint Institute for Nuclear Research Istituto Nazionale di Fisica Nucleare, Sezione di Torino 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 Czech Technical University in Prague University of Illinois Urbana-Champaign National Centre for Nuclear Research Technical University of Munich University of Aveiro Yamagata University University of Bonn European Organization for Nuclear Research University of Trieste Charles University University of Warsaw University of Lisbon Instituto Politécnico de Lisboa LIP - Laboratory of Instrumentation and Experimental Particle Physics University of Freiburg Institute of Physics, Academia Sinica Institute of Chemistry, Academia Sinica Calcutta Research Group 5T Torino (Italy)Torino e-district Brookhaven National Laboratory Pusan National University The Abdus Salam International Centre for Theoretical Physics (ICTP)Kurchatov Institute Institute for High Energy Physics Warsaw University of Technology National Research Tomsk State University Tomsk Polytechnic University Development Services Group (United States)Ruhr University Bochum Excellence Cluster Universe Program Support Center RWTH Aachen University Chubu University National Central University High Energy Accelerator Research Organization Moscow Institute of Physics and Technology Institute of Physics and Technology A. Alikhanyan National Laboratory National Kaohsiung Normal University University of Tübingen Uppsala University Johannes Gutenberg University Mainz Università degli Studi del Piemonte Orientale “Amedeo Avogadro”Azienda Sanitaria Locale Alessandria Astrophysique, Instrumentation et Modélisation 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 studiesHigh-Energy Particle Collisions ResearchQuantum Chromodynamics and Particle Interactions

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