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Exclusive ω meson muoproduction on transversely polarised protons

Adolph, C.
•
Aghasyan, M.
•
Akhunzyanov, R.
altro
Zink, A.
2017
  • journal article

Periodico
NUCLEAR PHYSICS. B
Abstract
Exclusive production of ω mesons was studied at the COMPASS experiment by scattering 160 GeV/c muons off transversely polarised protons. Five single-spin and three double-spin azimuthal asymmetries were measured in the range of photon virtuality 1 (GeV/c)2<Q2<10 (GeV/c)2, Bjorken scaling variable 0.003<xBj<0.3 and transverse momentum squared of the ω meson View the MathML source. The measured asymmetries are sensitive to the nucleon helicity-flip Generalised Parton Distributions (GPD) E that are related to the orbital angular momentum of quarks, the chiral-odd GPDs HT that are related to the transversity Parton Distribution Functions, and the sign of the πω transition form factor. The results are compared to recent calculations of a GPD-based model.
DOI
10.1016/j.nuclphysb.2016.12.015
WOS
WOS:000393702800024
Archivio
http://hdl.handle.net/11368/2893735
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85008472944
http://www.sciencedirect.com/science/article/pii/S0550321316304138
Diritti
open access
license:creative commons
license uri:http://creativecommons.org/licenses/by/3.0/it/
FVG url
https://arts.units.it/bitstream/11368/2893735/1/2017_npb915_454.pdf
Soggetti
  • Nuclear and High Ener...

Scopus© citazioni
8
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
7
Data di acquisizione
Mar 9, 2024
Visualizzazioni
4
Data di acquisizione
Apr 19, 2024
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