TY - JOUR
T1 - Phenomenological analysis of azimuthal asymmetries in unpolarized semi-inclusive deep inelastic scattering
AU - Barone, V.
AU - Boglione, M.
AU - Gonzalez Hernandez, J. O.
AU - Melis, S.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/4/14
Y1 - 2015/4/14
N2 - We present a phenomenological analysis of the cosφ and cos2φ asymmetries in unpolarized semi-inclusive deep inelastic scattering, based on the recent multidimensional data released by the COMPASS and HERMES collaborations. In the transverse-momentum-dependent framework, valid at relatively low transverse momenta, these asymmetries arise from intrinsic transverse momentum and transverse spin effects, and from their correlations. The role of the Cahn and Boer-Mulders effects in both azimuthal moments is explored up to order 1/Q. As the kinematics of the present experiments is dominated by the low-Q2 region, higher-twist contributions turn out to be important, affecting the results of our fits.
AB - We present a phenomenological analysis of the cosφ and cos2φ asymmetries in unpolarized semi-inclusive deep inelastic scattering, based on the recent multidimensional data released by the COMPASS and HERMES collaborations. In the transverse-momentum-dependent framework, valid at relatively low transverse momenta, these asymmetries arise from intrinsic transverse momentum and transverse spin effects, and from their correlations. The role of the Cahn and Boer-Mulders effects in both azimuthal moments is explored up to order 1/Q. As the kinematics of the present experiments is dominated by the low-Q2 region, higher-twist contributions turn out to be important, affecting the results of our fits.
UR - http://www.scopus.com/inward/record.url?scp=84929162896&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.91.074019
DO - 10.1103/PhysRevD.91.074019
M3 - Article
SN - 1550-7998
VL - 91
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 7
M1 - 074019
ER -