Alexeev GD, Alexeev MG, Alice C, Amoroso A, Andrieux V, Anosov V, Augsten K, Augustyniak W, Azevedo CD, Badelek B, Barth J, Beck R, Bedfer Y, Bernhard J, Bodlak M, Bradamante F, Braun C, Bressan A, Burtsev VE, Chang WC, Chatterjee C, Chiosso M, Chumakov AG, Chung SU, Cicuttin A, Correia PM, Crespo ML, D'Ago D, Dalla Torre S, Dasgupta SS, Dasgupta S, Del Carro F, Denisenko I, Denisov OY, Donskov SV, Doshita N, Dreisbach C, Dünnweber W, Dusaev RR, Ecker D, Efremov A, Elia C, Eremeev D, Faccioli P, Faessler M, Finger M, Fischer H, Flöthner KJ, Florian W, Friedrich JM, Frolov V, Garcia Ordòñez LG, Gautheron F, Gavrichtchouk OP, Gerassimov S, Giarra J, Giordano D, Gorzellik M, Grasso A, Gridin A, Grosse Perdekamp M, Grube B, Grüner M, Guskov A, von Harrach D, Hoffmann M, Horikawa N, d'Hose N, Hsieh CY, Huber S, Ishimoto S, Ivanov A, Iwata T, Jandek M, Jary V, Joosten R, Kabuß E, Kaspar F, Kerbizi A, Ketzer B, Khatun A, Khaustov GV, Klein F, Koivuniemi JH, Kolosov VN, Kondo Horikawa K, Konorov I, Konstantinov VF, Korzenev AM, Kotzinian AM, Kouznetsov OM, Koval A, Kral Z, Krinner F, Kunne F, Kurek K, Kurjata RP, Kveton A, Lavickova K, Levorato S, Lian YS, Lichtenstadt J, Lin PJ, Longo R, Lyubovitskij VE, Maggiora A, Magnon A, Makins N, Makke N, Mallot GK, Maltsev A, Mamon SA, Martin A, Marzec J, Matoušek J, Matsuda T, Mattson G, Menezes Pires C, Metzger F, Meyer M, Meyer W, Mikhailov YV, Mikhasenko M, Mitrofanov E, Miura D, Miyachi Y, Molina R, Moretti A, Nagaytsev A, Neyret D, Niemiec M, Nový J, Nowak WD, Nukazuka G, Olshevsky AG, Ostrick M, Panzieri D, Parsamyan B, Paul S, Pekeler H, Peng JC, Pesaro G, Pešek M, Peshekhonov DV, Pešková M, Platchkov S, Pochodzalla J, Polyakov VA, Quaresma M, Quintans C, Reicherz G, Riedl C, Ryabchikov DI, Rychter A, Rymbekova A, Samoylenko VD, Sandacz A, Sarkar S, Savin IA, Sbrizzai G, Schiavon P, Schmieden H, Selyunin A, Sharko K, Sinha L, Slunecka M, Sozzi F, Spülbeck D, Srnka A, Stolarski M, Subrt O, Sulc M, Suzuki H, Tessaro S, Tessarotto F, Thiel A, Tomsa J, Tosello F, Townsend A, Triloki T, Tskhay V, Valinoti B, Veit BM, Veloso JF, Ventura B, Virius M, Wagner M, Wallner S, Zaremba K, Zavertyaev M, Zemko M, Zemlyanichkina E, Ziembicki M (2023)
Publication Type: Journal article
Publication year: 2023
Book Volume: 845
Article Number: 138155
DOI: 10.1016/j.physletb.2023.138155
A set of measurements of azimuthal asymmetries in the production of pairs of identified hadrons in deep-inelastic scattering of muons on transversely polarised 6LiD (deuteron) and NH3 (proton) targets is presented. All available data collected in the years 2003–2004 and 2007/2010 with the COMPASS spectrometer using a muon beam of 160GeV/c at the CERN SPS were analysed. The asymmetries provide access to the transversity distribution functions via a fragmentation function that in principle may be independently obtained from e+e− annihilation data. Results are presented, discussed and compared to existing measurements as well as to model predictions. Asymmetries of π+π− pairs measured with the proton target as a function of the Bjorken scaling variable are sizeable in the range x>0.032, indicating non-vanishing transversity distribution and di-hadron interference fragmentation functions. As already pointed out by several authors, the small asymmetries of π+π− measured on the 6LiD target can be interpreted as indication for a cancellation of u and d-quark transversity distributions.
APA:
Alexeev, G.D., Alexeev, M.G., Alice, C., Amoroso, A., Andrieux, V., Anosov, V.,... Ziembicki, M. (2023). Transverse-spin-dependent azimuthal asymmetries of pion and kaon pairs produced in muon-proton and muon-deuteron semi-inclusive deep inelastic scattering. Physics Letters B, 845. https://doi.org/10.1016/j.physletb.2023.138155
MLA:
Alexeev, G. D., et al. "Transverse-spin-dependent azimuthal asymmetries of pion and kaon pairs produced in muon-proton and muon-deuteron semi-inclusive deep inelastic scattering." Physics Letters B 845 (2023).
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