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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)



Corresponding record in: Inspire
Email contact: bakur.parsamyan@cern.ch


 Записът е създаден на 2022-10-28, последна промяна на 2024-09-19


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2211.00093 - Сваляне на пълен текстPDF
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