Exclusive ω meson muoproduction on transversely polarised protons
نویسندگان
چکیده
منابع مشابه
Transverse target spin asymmetries in exclusive ρ0 muoproduction
C. Adolph h, R. Akhunzyanov g, M.G. Alekseev x, V.Yu. Alexakhin g, Yu. Alexandrov o,1, G.D. Alexeev g, A. Amoroso aa,ab, V. Andrieux v, V. Anosov g, A. Austregesilo j,q, B. Badełek ae, F. Balestra aa,ab, J. Barth d, G. Baum a, R. Beck c, Y. Bedfer v, A. Berlin b, J. Bernhard m, R. Bertini aa,ab, K. Bicker j,q, J. Bieling d, R. Birsa x, J. Bisplinghoff c, M. Bodlak s, M. Boer v, P. Bordalo l,2, ...
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We discuss the electroproduction of light vector mesons from transversely polarized photons. Here QCD factorization cannot be applied as shown explicitly in a leading order calculation of corresponding Feynman diagrams. It is emphasized that present infrared singular contributions cannot be regularized through phenomenological meson distribution amplitudes with suppressed endpoint configuration...
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Generalized parton distributions (GPDs) are a versatile tool to quantify important aspects of hadron structure in QCD. They contain unique information on the spatial distribution of partons [1] and on the orbital angular momentum they carry in the proton [2]. The theoretically cleanest process where GPDs can be studied is deeply virtual Compton scattering (similar to inclusive DIS, which plays ...
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Josef Pochodzalla, Lech Mankiewicz, Murray Moinester, Gunther Piller , Andrzej Sandacz, Marc Vanderhaeghen Max-Planck-Institut für Kernphysik, 69029 Heidelberg, Germany Physics Department, Technical University Munich, D-85747 Garching, Germany School of Physics and Astronomy, R. and B. Sackler Faculty of Exact Sciences, Tel Aviv University, 69978 Ramat Aviv, Israel Soltan Institute for Nuclear ...
متن کاملExclusive meson production at COMPASS
In this paper we summarize recent measurements of exclusive meson production performed by the COMPASS Collaboration. In particular, recent results on the transverse target spin asymmetries for exclusive ρ0 production are presented. Some of these asymmetries are sensitive to the GPDs E, which are related to the orbital angular momentum of quarks. Other asymmetries are sensitive to the chiral-odd...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2017
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2016.12.015