Начало > CERN Experiments > Fixed Target Experiments > COMPASS > COMPASS Papers > Collins and Sivers transverse-spin asymmetries in inclusive muoproduction of $\rho^0$ mesons |
Article | |
Report number | arXiv:2211.00093 ; CERN-EP-2022-234 ; CERN-EP-2022--234 |
Title | Collins and Sivers transverse-spin asymmetries in inclusive muoproduction of $\rho^0$ mesons |
Author(s) |
Alexeev, G.D. (Unlisted) ; Alexeev, M.G. (INFN, Turin ; Turin U.) ; Alice, C. (INFN, Turin ; Turin U.) ; Amoroso, A. (INFN, Turin ; Turin U.) ; Andrieux, V. (Illinois U., Urbana) ; Anosov, V. (Unlisted) ; Augsten, K. (Prague, Tech. U.) ; Augustyniak, W. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Azevedo, C.D.R. (Aveiro U.) ; Badelek, B. (Warsaw U.) ; Barth, J. (Bonn U.) ; Beck, R. (Bonn U.) ; Bedfer, Y. (IRFU, Saclay) ; Bernhard, J. (Mainz U., Inst. Kernphys. ; CERN) ; Bodlak, M. (Charles U.) ; Bradamante, F. (INFN, Trieste) ; Bressan, A. (INFN, Trieste) ; Burtsev, V.E. (Unlisted) ; Chang, W.-C. (Taiwan, Inst. Phys.) ; Chatterjee, C. (INFN, Trieste) ; A. ; Chiosso, M. (INFN, Turin ; Turin U.) ; Chumakov, A.G. (Unlisted) ; Chung, S.-U. (Munich, Tech. U.) ; K. ; K. (Yerevan Phys. Inst.) ; Cicuttin, A. (INFN, Trieste ; ICTP, Trieste) ; Correia, P.M.M. (Aveiro U.) ; Crespo, M.L. (INFN, Trieste ; ICTP, Trieste) ; D'Ago, D. (INFN, Trieste) ; Dalla Torre, S. (INFN, Trieste) ; Dasgupta, S.S. (Saha Inst.) ; Dasgupta, S. (INFN, Trieste) ; G. ; Del Carro, F. (INFN, Turin ; Turin U.) ; Denisenko, I. (Unlisted) ; Denisov, O.Yu. (INFN, Turin) ; Donskov, S.V. (Unlisted) ; Doshita, N. (Yamagata U.) ; Dreisbach, Ch. (Munich, Tech. U.) ; d, W. Dünnweber ; D. (Yerevan Phys. Inst.) ; Dusaev, R.R. (Unlisted) ; Ecker, D. (Munich, Tech. U.) ; Efremov, A. (Unlisted) ; Elia, C. (INFN, Trieste) ; Eremeev, D. (Unlisted) ; Faccioli, P. (LIP, Lisbon) ; d, M. Faessler ; Finger, M. (Charles U.) ; Finger, M., jr. (Charles U.) ; Fischer, H. (Freiburg U.) ; Flöthner, K.J. (Bonn U.) ; Florian, W. (INFN, Trieste ; ICTP, Trieste) ; Friedrich, J.M. (Munich, Tech. U.) ; Frolov, V. (Unlisted) ; Ordòñez, L.G. Garcia (INFN, Trieste ; ICTP, Trieste) ; Gautheron, F. (Ruhr U., Bochum ; Illinois U., Urbana) ; Gavrichtchouk, O.P. (Unlisted) ; Gerassimov, S. (Unlisted ; Munich, Tech. U.) ; Giarra, J. (Mainz U., Inst. Kernphys.) ; Giordano, D. (INFN, Turin ; Turin U.) ; Gorzellik, M. (Freiburg U.) ; C. ; Grasso, A. (INFN, Turin ; Turin U.) ; Gridin, A. (Unlisted) ; Grosse Perdekamp, M. (Illinois U., Urbana) ; Grube, B. (Munich, Tech. U.) ; Grüner, M. (Bonn U.) ; Guskov, A. (Unlisted) ; von Harrach, D. (Mainz U., Inst. Kernphys.) ; Hoffmann, M. (Bonn U.) ; Horikawa, N. (Nagoya U.) ; I. ; d'Hose, N. (IRFU, Saclay) ; Hsieh, C.-Y. (Taiwan, Inst. Phys.) ; L. ; Huber, S. (Munich, Tech. U.) ; Ishimoto, S. (Yamagata U.) ; J. ; Ivanov, A. (Unlisted) ; Iwata, T. (Yamagata U.) ; Jandek, M. (Prague, Tech. U.) ; Jary, V. (Prague, Tech. U.) ; Joosten, R. (Bonn U.) ; Kabuß, E. (Mainz U., Inst. Kernphys.) ; Kaspar, F. (Munich, Tech. U.) ; Kerbizi, A. (INFN, Trieste) ; Ketzer, B. (Bonn U.) ; Khatun, A. (IRFU, Saclay) ; Khaustov, G.V. (Unlisted) ; Klein, F. (Bonn U.) ; Koivuniemi, J.H. (Ruhr U., Bochum ; Illinois U., Urbana) ; Kolosov, V.N. (Unlisted) ; Kondo Horikawa, K. (Yamagata U.) ; Konorov, I. (Unlisted ; Munich, Tech. U.) ; Konstantinov, V.F. (Unlisted) ; Korzenev, A.M. (Unlisted) ; Kotzinian, A.M. (Yerevan Phys. Inst. ; INFN, Turin) ; Kouznetsov, O.M. (Unlisted) ; Koval, A. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Kral, Z. (Charles U.) ; Krinner, F. (Munich, Tech. U.) ; Kunne, F. (IRFU, Saclay) ; Kurek, K. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Kurjata, R.P. (Warsaw U. of Tech.) ; Kveton, A. (Charles U.) ; Lavickova, K. (Prague, Tech. U.) ; Levorato, S. (CERN ; INFN, Trieste) ; Lian, Y.-S. (Taiwan, Inst. Phys.) ; M. ; Lichtenstadt, J. (Tel Aviv U.) ; Lin, P.-J. (IRFU, Saclay) ; B. ; Longo, R. (Illinois U., Urbana) ; Lyubovitskij, V.E. (Unlisted) ; F. ; Maggiora, A. (INFN, Turin) ; Magnon, A. (Saha Inst.) ; Makins, N. (Illinois U., Urbana) ; Makke, N. (INFN, Trieste) ; Mallot, G.K. (CERN ; Freiburg U.) ; Maltsev, A. (Unlisted) ; Mamon, S.A. (Unlisted) ; Martin, A. (INFN, Trieste) ; Marzec, J. (Warsaw U. of Tech.) ; Matoušek, J. (Charles U.) ; Matsuda, T. (Miyazaki U.) ; Mattson, G. (Illinois U., Urbana) ; Pires, C. Menezes (LIP, Lisbon) ; Metzger, F. (Bonn U.) ; Meyer, M. (Illinois U., Urbana ; IRFU, Saclay) ; Meyer, W. (Ruhr U., Bochum) ; Mikhailov, Yu.V. (Unlisted) ; Mikhasenko, M. (LMU Munich (main)) ; e. ; Mitrofanov, E. (Unlisted) ; Miura, D. (Yamagata U.) ; Miyachi, Y. (Yamagata U.) ; Molina, R. (INFN, Trieste ; ICTP, Trieste) ; Moretti, A. (INFN, Trieste) ; Nagaytsev, A. (Unlisted) ; Naim, C. (IRFU, Saclay) ; Neyret, D. (IRFU, Saclay) ; Nový, J. (Prague, Tech. U.) ; Nowak, W.-D. (Mainz U., Inst. Kernphys.) ; Nukazuka, G. (Yamagata U.) ; Olshevsky, A.G. (Unlisted) ; Ostrick, M. (Mainz U., Inst. Kernphys.) ; Panzieri, D. (INFN, Turin) ; H. ; H. (Yerevan Phys. Inst.) ; Parsamyan, B. (Yerevan Phys. Inst. ; INFN, Turin) ; Paul, S. (Munich, Tech. U.) ; Pekeler, H. (Bonn U.) ; Peng, J.-C. (Illinois U., Urbana) ; Pešek, M. (Charles U.) ; Peshekhonov, D.V. (Unlisted) ; Pešková, M. (Charles U.) ; Platchkov, S. (IRFU, Saclay) ; Pochodzalla, J. (Mainz U., Inst. Kernphys.) ; Polyakov, V.A. (Unlisted) ; Quaresma, M. (LIP, Lisbon) ; Quintans, C. (LIP, Lisbon) ; Reicherz, G. (Ruhr U., Bochum) ; Riedl, C. (Illinois U., Urbana) ; Rudnicki, T. (Warsaw U.) ; Ryabchikov, D.I. (Unlisted ; Munich, Tech. U.) ; Rychter, A. (Warsaw U. of Tech.) ; Rymbekova, A. (Unlisted) ; Samoylenko, V.D. (Unlisted) ; Sandacz, A. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Sarkar, S. (Saha Inst.) ; Savin, I.A. (Unlisted) ; Sbrizzai, G. (INFN, Trieste) ; Schmieden, H. (Bonn U.) ; Selyunin, A. (Unlisted) ; Sharko, K. (Unlisted) ; Sinha, L. (Saha Inst.) ; Slunecka, M. (Unlisted ; Charles U.) ; Sozzi, F. (INFN, Trieste) ; Spülbeck, D. (Bonn U.) ; Srnka, A. (Inst. Sci. Instruments, Brno) ; Stolarski, M. (LIP, Lisbon) ; Subrt, O. (CERN ; Prague, Tech. U.) ; Sulc, M. (Liberec Tech. U.) ; Suzuki, H. (Yamagata U.) ; Tessaro, S. (INFN, Trieste) ; Tessarotto, F. (CERN ; INFN, Trieste) ; Thiel, A. (Bonn U.) ; Tomsa, J. (Charles U.) ; Tosello, F. (INFN, Turin) ; Townsend, A. (Illinois U., Urbana) ; Triloki, T. (INFN, Trieste) ; Tskhay, V. (Unlisted) ; Valinoti, B. (INFN, Trieste ; ICTP, Trieste) ; Veit, B.M. (Mainz U., Inst. Kernphys.) ; Veloso, J.F.C.A. (Aveiro U.) ; Ventura, B. (IRFU, Saclay) ; Virius, M. (Prague, Tech. U.) ; Wagner, M. (Bonn U.) ; Wallner, S. (Munich, Tech. U.) ; Zaremba, K. (Warsaw U. of Tech.) ; Zavertyaev, M. (Unlisted) ; Zemko, M. (Charles U. ; Prague, Tech. U.) ; Zemlyanichkina, E. (Unlisted) ; Ziembicki, M. (Warsaw U. of Tech.) |
Publication | 2023-06-16 |
Imprint | 31 Oct 2022 |
Number of pages | 9 |
In: | Phys. Lett. B 843 (2023) 137950 |
DOI | 10.1016/j.physletb.2023.137950 (publication) |
Subject category | Particle Physics - Experiment ; Particle Physics - Phenomenology |
Accelerator/Facility, Experiment | CERN SPS ; COMPASS / NA58 |
Free keywords | QCD ; hard scattering ; experimental results |
Abstract | The production of vector mesons in deep inelastic scattering is an interesting yet scarsely explored channel to study the transverse spin structure of the nucleon and the related phenomena. The COMPASS collaboration has performed the first measurement of the Collins and Sivers asymmetries for inclusively produced $\rho^0$ mesons. The analysis is based on the data set collected in deep inelastic scattering in $2010$ using a $160\,\,\rm{GeV}/c$ $\mu^+$ beam impinging on a transversely polarized $\rm{NH}_3$ target. The $\rho^{0}$ mesons are selected from oppositely charged hadron pairs, and the asymmetries are extracted as a function of the Bjorken-$x$ variable, the transverse momentum of the pair and the fraction of the energy $z$ carried by the pair. Indications for positive Collins and Sivers asymmetries are observed. |
Copyright/License | publication: © 2023-2024 The Author(s) (License: CC BY 4.0), sponsored by SCOAP³ preprint: © 2022-2024 CERN (Licenses: CC-BY-4.0, arXiv nonexclusive-distrib 1.0) |