Partonic Transverse Motion in Unpolarized Semi-Inclusive Deep Inelastic Scattering Processes

Abstract

We analyse the role of partonic transverse motion in unpolarized Semi-Inclusive Deep Inelastic Scattering (SIDIS) processes. Imposing appropriate kinematical conditions, we find some constraints which fix an upper limit to the range of allowed k_perp values. We show that, applying these additional requirements on the partonic kinematics, we obtain different results with respect to the usual phenomenological approach based on the Gaussian smearing with analytical integration over an unlimited range of k_perp values. These variations are particularly interesting for some observables, like the < cos phi_h > azimuthal modulation of the unpolarized SIDIS cross section or the average transverse momentum of the final, detected hadron.

19 pages, 15 figures

References in corpus (9)

• Parton distributions for the LHC
• Global analysis of fragmentation functions for pions and kaons and their uncertainties
• Sivers Effect for Pion and Kaon Production in Semi-Inclusive Deep Inelastic Scattering
• Measurement of Single and Double Spin Asymmetries in Deep Inelastic Pion Electroproduction with a Longitudinally Polarized Target
• Semi-Inclusive Deep Inelastic Scattering processes from small to large P_T
• Sivers effect in Drell-Yan processes
• Measurement of azimuthal asymmetries of the unpolarized cross section at HERMES
• Azimuthal asymmetries in the unpolarized SIDIS cross section at COMPASS
• Intrinsic parton motion soft mechanisms and the longitudinal spin asymmetry A_LL in high energy pp -> pi X

Cited by in corpus (13)

• Measurement of azimuthal hadron asymmetries in semi-inclusive deep inelastic scattering off unpolarised nucleons
• Phenomenology of transverse spin: past, present and future
• Transverse single-spin asymmetries of pion production in semi-inclusive DIS at subleading twist
• Beam single spin asymmetry of neutral pion production in semi-inclusive deep inelastic scattering
• Double Spin Asymmetries $A_{LT}^{\cos {\varphi }_S}$ and $A_{LT}^{\cos (2{\varphi }_h-{\varphi }_S)}$ in semi-inclusive DIS
• Single-spin asymmetries in electroproduction of pions on the longitudinally polarized nucleon targets
• Spin Orbit Correlations and the Structure of the Nucleon
• Extracting TMDs from CLAS12 data
• Double-spin asymmetry $A_{LT}^{\cos {\varphi }_S}$ in semi-inclusive DIS at CLAS12 and EIC within the collinear framework
• On the beam spin asymmetries of electroproduction of charged hadrons off the nucleon targets
• Parton distributions and $\cos 2{\varphi }_h$ asymmetry induced by anomalous photon-quark coupling
• Studies of TMDs with CLAS
• Measurement of azimuthal asymmetries in SIDIS on unpolarized protons