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Longitudinal double spin asymmetries in single hadron quasi-real photoproduction at high pT

Adolph, C.
•
Akhunzyanov, R.
•
Alexeev, M. G.
altro
Zink, A.
2016
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
We measured the longitudinal double spin asymmetries ALL for single hadron muoproduction off protons and deuterons at photon virtuality Q 2 < 1 (GeV/c)2 for transverse hadron momenta pT in the range 1 GeV/c to 4 GeV/c. They were determined using COMPASS data taken with a polarised muon beam of 160 GeV/c or 200 GeV/c impinging on polarised 6LiD or NH3 targets. The experimental asymmetries are compared to next-to-leading order pQCD calculations, and are sensitive to the gluon polarisation Delta G inside the nucleon in the range of the nucleon momentum fraction carried by gluons 0.05 < xg < 0.2.
DOI
10.1016/j.physletb.2015.12.035
WOS
WOS:000368783600078
Archivio
http://hdl.handle.net/11368/2871214
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84953889300
http://www.sciencedirect.com/science/article/pii/S0370269315009831
Diritti
open access
license:creative commons
license uri:http://creativecommons.org/licenses/by/3.0/it/
FVG url
https://arts.units.it/bitstream/11368/2871214/1/2016_plb753_573.pdf
Soggetti
  • COMPASS

  • Deep inelastic scatte...

  • Double spin asymmetry...

  • High pT

  • δG

  • Nuclear and High Ener...

Scopus© citazioni
7
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
6
Data di acquisizione
Mar 10, 2024
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