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/c160 GeV/c and a 6LiD target. The amplitudes of the three azimuthal modulations cosϕhcosϕh, cos2ϕhcos2ϕh and sinϕhsinϕh were obtained binning the data separately in each of the relevant kinematic variables x , z or View the MathML sourcepTh and binning in a three-dimensional grid of these three variables. The amplitudes of the cosϕhcosϕh and cos2ϕhcos2ϕh modulations show strong kinematic dependencies both for positive and negative hadrons.
Measurement of azimuthal hadron asymmetries in semi-inclusive deep inelastic scattering off unpolarised nucleons
BRADAMANTE, FRANCO;BRESSAN, Andrea;DALLA TORRE, SILVIA;DASGUPTA, SHUDDHA SHANKAR;DUIC, VENICIO;LEVORATO, STEFANO;Makke, Nour;MARTIN, ANNA;SCHIAVON, PAOLO;SOZZI, FEDERICA;TAKEKAWA, STEFANO;
2014-01-01
Abstract
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/c160 GeV/c and a 6LiD target. The amplitudes of the three azimuthal modulations cosϕhcosϕh, cos2ϕhcos2ϕh and sinϕhsinϕh were obtained binning the data separately in each of the relevant kinematic variables x , z or View the MathML sourcepTh and binning in a three-dimensional grid of these three variables. The amplitudes of the cosϕhcosϕh and cos2ϕhcos2ϕh modulations show strong kinematic dependencies both for positive and negative hadrons.Pubblicazioni consigliate
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