Measurement of azimuthal hadron asymmetries in semi-inclusive deep inelastic scattering off unpolarised nucleons
Spin-averaged asymmetries in the azimuthal distributions of positive and negative hadrons produced in deep inelastic scattering were measured using the CERN SPS longitudinally polarised muon beam at 160 GeV/c and a 6LiD target. The amplitudes of the three azimuthal modulations cosϕh, cos2ϕh and si...
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Format: | Article |
Idioma: | English |
Publicat: |
Elsevier
2014-09-01
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Col·lecció: | Nuclear Physics B |
Accés en línia: | http://www.sciencedirect.com/science/article/pii/S0550321314002387 |
Sumari: | Spin-averaged asymmetries in the azimuthal distributions of positive and negative hadrons produced in deep inelastic scattering were measured using the CERN SPS longitudinally polarised muon beam at 160 GeV/c and a 6LiD target. The amplitudes of the three azimuthal modulations cosϕh, cos2ϕh and sinϕh were obtained binning the data separately in each of the relevant kinematic variables x, z or pTh and binning in a three-dimensional grid of these three variables. The amplitudes of the cosϕh and cos2ϕh modulations show strong kinematic dependencies both for positive and negative hadrons. |
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ISSN: | 0550-3213 1873-1562 |