Final COMPASS Results on the Transverse-Spin-Dependent Azimuthal Asymmetries in the Pion-Induced Drell-Yan Process.

Autor: Alexeev GD; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Alexeev MG; Torino Section of INFN, 10125 Torino, Italy.; University of Torino, Dept. of Physics, 10125 Torino, Italy., Alice C; Torino Section of INFN, 10125 Torino, Italy.; University of Torino, Dept. of Physics, 10125 Torino, Italy., Amoroso A; Torino Section of INFN, 10125 Torino, Italy.; University of Torino, Dept. of Physics, 10125 Torino, Italy., Andrieux V; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA., Anosov V; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Augsten K; Czech Technical University in Prague, 16636 Prague, Czech Republic., Augustyniak W; National Centre for Nuclear Research, 02-093 Warsaw, Poland., Azevedo CDR; University of Aveiro, I3N, Dept. of Physics, 3810-193 Aveiro, Portugal., Badelek B; University of Warsaw, Faculty of Physics, 02-093 Warsaw, Poland., Barth J; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany., Beck R; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany., Beckers J; Technische Universität München, Physik Dept., 85748 Garching, Germany., Bedfer Y; IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France., Bernhard J; CERN, 1211 Geneva 23, Switzerland., Bodlak M; Charles University, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic., Bradamante F; Trieste Section of INFN, 34127 Trieste, Italy., Bressan A; Trieste Section of INFN, 34127 Trieste, Italy.; University of Trieste, Dept. of Physics, 34127 Trieste, Italy., Chang WC; Academia Sinica, Institute of Physics, Taipei 11529, Taiwan., Chatterjee C; Trieste Section of INFN, 34127 Trieste, Italy., Chiosso M; Torino Section of INFN, 10125 Torino, Italy.; University of Torino, Dept. of Physics, 10125 Torino, Italy., Chumakov AG; Affiliated with an institute covered by a cooperation agreement with CERN., Chung SU; Technische Universität München, Physik Dept., 85748 Garching, Germany., Cicuttin A; Abdus Salam ICTP, 34151 Trieste, Italy.; Trieste Section of INFN, 34127 Trieste, Italy., Correia PMM; University of Aveiro, I3N, Dept. of Physics, 3810-193 Aveiro, Portugal., Crespo ML; Abdus Salam ICTP, 34151 Trieste, Italy.; Trieste Section of INFN, 34127 Trieste, Italy., D'Ago D; Trieste Section of INFN, 34127 Trieste, Italy.; University of Trieste, Dept. of Physics, 34127 Trieste, Italy., Dalla Torre S; Trieste Section of INFN, 34127 Trieste, Italy., Dasgupta SS; Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India., Dasgupta S; Trieste Section of INFN, 34127 Trieste, Italy., Delcarro F; Torino Section of INFN, 10125 Torino, Italy.; University of Torino, Dept. of Physics, 10125 Torino, Italy., Denisenko I; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Denisov OY; Torino Section of INFN, 10125 Torino, Italy., Donskov SV; Affiliated with an institute covered by a cooperation agreement with CERN., Doshita N; Yamagata University, Yamagata 992-8510, Japan., Dreisbach C; Technische Universität München, Physik Dept., 85748 Garching, Germany., Dünnweber W; Ludwig-Maximilians-Universität, 80539 München, Germany., Dusaev RR; Affiliated with an institute covered by a cooperation agreement with CERN., Ecker D; Technische Universität München, Physik Dept., 85748 Garching, Germany., Eremeev D; Affiliated with an institute covered by a cooperation agreement with CERN., Faccioli P; LIP, 1649-003 Lisbon, Portugal., Faessler M; Ludwig-Maximilians-Universität, 80539 München, Germany., Finger M; Charles University, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic., Finger M; Charles University, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic., Fischer H; Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany., Flöthner KJ; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany., Florian W; Abdus Salam ICTP, 34151 Trieste, Italy.; Trieste Section of INFN, 34127 Trieste, Italy., Friedrich JM; Technische Universität München, Physik Dept., 85748 Garching, Germany., Frolov V; Affiliated with an international laboratory covered by a cooperation agreement with CERN.; CERN, 1211 Geneva 23, Switzerland., Garcia Ordòñez LG; Abdus Salam ICTP, 34151 Trieste, Italy.; Trieste Section of INFN, 34127 Trieste, Italy., Gautheron F; Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany.; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA., Gavrichtchouk OP; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Gerassimov S; Technische Universität München, Physik Dept., 85748 Garching, Germany.; Affiliated with an institute covered by a cooperation agreement with CERN., Giarra J; Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany., Giordano D; Torino Section of INFN, 10125 Torino, Italy.; University of Torino, Dept. of Physics, 10125 Torino, Italy., Grasso A; Torino Section of INFN, 10125 Torino, Italy.; University of Torino, Dept. of Physics, 10125 Torino, Italy., Gridin A; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Grosse Perdekamp M; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA., Grube B; Technische Universität München, Physik Dept., 85748 Garching, Germany., Grüner M; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany., Guskov A; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Haas P; Technische Universität München, Physik Dept., 85748 Garching, Germany., von Harrach D; Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany., Heitz R; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA., Hoffmann M; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany., d'Hose N; IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France., Hsieh CY; Academia Sinica, Institute of Physics, Taipei 11529, Taiwan., Huber S; Technische Universität München, Physik Dept., 85748 Garching, Germany., Ishimoto S; Yamagata University, Yamagata 992-8510, Japan., Ivanov A; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Iwata T; Yamagata University, Yamagata 992-8510, Japan., Jary V; Czech Technical University in Prague, 16636 Prague, Czech Republic., Joosten R; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany., Kabuß E; Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany., Kaspar F; Technische Universität München, Physik Dept., 85748 Garching, Germany., Kerbizi A; Trieste Section of INFN, 34127 Trieste, Italy.; University of Trieste, Dept. of Physics, 34127 Trieste, Italy., Ketzer B; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany., Khatun A; IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France., Khaustov GV; Affiliated with an institute covered by a cooperation agreement with CERN., Klein F; Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany., Koivuniemi JH; Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany.; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA., Kolosov VN; Affiliated with an institute covered by a cooperation agreement with CERN., Kondo Horikawa K; Yamagata University, Yamagata 992-8510, Japan., Konorov I; Technische Universität München, Physik Dept., 85748 Garching, Germany.; Affiliated with an institute covered by a cooperation agreement with CERN., Konstantinov VF; Affiliated with an institute covered by a cooperation agreement with CERN., Korzenev AY; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Kotzinian AM; A.I. Alikhanyan National Science Laboratory, 2 Alikhanyan Br. Street, 0036, Yerevan, Armenia.; Torino Section of INFN, 10125 Torino, Italy., Kouznetsov OM; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Koval A; National Centre for Nuclear Research, 02-093 Warsaw, Poland., Kral Z; Charles University, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic., Krinner F; Technische Universität München, Physik Dept., 85748 Garching, Germany., Kunne F; IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France., Kurek K; National Centre for Nuclear Research, 02-093 Warsaw, Poland., Kurjata RP; Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland., Kveton A; Charles University, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic., Lavickova K; Czech Technical University in Prague, 16636 Prague, Czech Republic., Levorato S; Trieste Section of INFN, 34127 Trieste, Italy.; CERN, 1211 Geneva 23, Switzerland., Lian YS; Academia Sinica, Institute of Physics, Taipei 11529, Taiwan., Lichtenstadt J; Tel Aviv University, School of Physics and Astronomy, 69978 Tel Aviv, Israel., Lin PJ; Center for High Energy and High Field Physics and Dept. of Physics, National Central University, 300 Zhongda Rd., Zhongli 320317, Taiwan., Longo R; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA., Lyubovitskij VE; Affiliated with an institute covered by a cooperation agreement with CERN., Maggiora A; Torino Section of INFN, 10125 Torino, Italy., Magnon A; Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India., Makke N; Trieste Section of INFN, 34127 Trieste, Italy., Mallot GK; Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany.; CERN, 1211 Geneva 23, Switzerland., Maltsev A; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Martin A; Trieste Section of INFN, 34127 Trieste, Italy.; University of Trieste, Dept. of Physics, 34127 Trieste, Italy., Marzec J; Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland., Matoušek J; Charles University, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic., Matsuda T; University of Miyazaki, Miyazaki 889-2192, Japan., Mattson G; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA., Menezes Pires C; LIP, 1649-003 Lisbon, Portugal., Metzger F; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany., Meyer M; IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France.; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA., Meyer W; Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany., Mikhailov YV; Affiliated with an institute covered by a cooperation agreement with CERN., Mikhasenko M; Ludwig-Maximilians-Universität, 80539 München, Germany., Mitrofanov E; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Miura D; Yamagata University, Yamagata 992-8510, Japan., Miyachi Y; Yamagata University, Yamagata 992-8510, Japan., Molina R; Abdus Salam ICTP, 34151 Trieste, Italy.; Trieste Section of INFN, 34127 Trieste, Italy., Moretti A; Trieste Section of INFN, 34127 Trieste, Italy.; University of Trieste, Dept. of Physics, 34127 Trieste, Italy., Nagaytsev A; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Neyret D; IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France., Niemiec M; University of Warsaw, Faculty of Physics, 02-093 Warsaw, Poland., Nový J; Czech Technical University in Prague, 16636 Prague, Czech Republic., Nowak WD; Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany., Nukazuka G; Yamagata University, Yamagata 992-8510, Japan., Olshevsky AG; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Ostrick M; Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany., Panzieri D; Torino Section of INFN, 10125 Torino, Italy., Parsamyan B; A.I. Alikhanyan National Science Laboratory, 2 Alikhanyan Br. Street, 0036, Yerevan, Armenia.; Torino Section of INFN, 10125 Torino, Italy.; CERN, 1211 Geneva 23, Switzerland., Paul S; Technische Universität München, Physik Dept., 85748 Garching, Germany., Pekeler H; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany., Peng JC; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA., Pešek M; Charles University, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic., Peshekhonov DV; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Pešková M; Charles University, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic., Platchkov S; IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France., Pochodzalla J; Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany., Polyakov VA; Affiliated with an institute covered by a cooperation agreement with CERN., Quaresma M; LIP, 1649-003 Lisbon, Portugal., Quintans C; LIP, 1649-003 Lisbon, Portugal., Reicherz G; Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany., Riedl C; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA., Ryabchikov DI; Technische Universität München, Physik Dept., 85748 Garching, Germany.; Affiliated with an institute covered by a cooperation agreement with CERN., Rychter A; Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland., Rymbekova A; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Samoylenko VD; Affiliated with an institute covered by a cooperation agreement with CERN., Sandacz A; National Centre for Nuclear Research, 02-093 Warsaw, Poland., Sarkar S; Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India., Savada T; Academia Sinica, Institute of Physics, Taipei 11529, Taiwan., Savin IA; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Sbrizzai G; Trieste Section of INFN, 34127 Trieste, Italy., Schmieden H; Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany., Selyunin A; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Sharko K; Affiliated with an institute covered by a cooperation agreement with CERN., Sinha L; Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India., Spülbeck D; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany., Srnka A; Institute of Scientific Instruments of the CAS, 61264 Brno, Czech Republic., Stolarski M; LIP, 1649-003 Lisbon, Portugal., Sulc M; Technical University in Liberec, 46117 Liberec, Czech Republic., Suzuki H; Yamagata University, Yamagata 992-8510, Japan., Tessaro S; Trieste Section of INFN, 34127 Trieste, Italy., Tessarotto F; Trieste Section of INFN, 34127 Trieste, Italy., Thiel A; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany., Tosello F; Torino Section of INFN, 10125 Torino, Italy., Townsend A; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA., Triloki T; Trieste Section of INFN, 34127 Trieste, Italy., Tskhay V; Affiliated with an institute covered by a cooperation agreement with CERN., Valinoti B; Abdus Salam ICTP, 34151 Trieste, Italy.; Trieste Section of INFN, 34127 Trieste, Italy., Veit BM; Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany., Veloso JFCA; University of Aveiro, I3N, Dept. of Physics, 3810-193 Aveiro, Portugal., Ventura B; IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France., Vijayakumar A; University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA., Virius M; Czech Technical University in Prague, 16636 Prague, Czech Republic., Wagner M; Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany., Wallner S; Technische Universität München, Physik Dept., 85748 Garching, Germany., Zaremba K; Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland., Zavertyaev M; Affiliated with an institute covered by a cooperation agreement with CERN., Zemko M; Czech Technical University in Prague, 16636 Prague, Czech Republic.; Charles University, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic., Zemlyanichkina E; Affiliated with an international laboratory covered by a cooperation agreement with CERN., Ziembicki M; Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland.
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2024 Aug 16; Vol. 133 (7), pp. 071902.
DOI: 10.1103/PhysRevLett.133.071902
Abstrakt: The COMPASS Collaboration performed measurements of the Drell-Yan process in 2015 and 2018 using a 190  GeV/c π^{-} beam impinging on a transversely polarized ammonia target. Combining the data of both years, we present final results on the amplitudes of five azimuthal modulations, which correspond to transverse-spin-dependent azimuthal asymmetries (TSAs) in the dimuon production cross section. Three of them probe the nucleon leading-twist Sivers, transversity, and pretzelosity transverse-momentum dependent (TMD) parton distribution functions (PDFs). The other two are induced by subleading effects. These TSAs provide unique new inputs for the study of the nucleon TMD PDFs and their universality properties. In particular, the Sivers TSA observed in this measurement is consistent with the fundamental QCD prediction of a sign change of naive time-reversal-odd TMD PDFs when comparing the Drell-Yan process with deep inelastic scattering. Also, within the context of model predictions, the observed transversity TSA is consistent with the expectation of a sign change for the Boer-Mulders function.
Databáze: MEDLINE