SIDIS unpolarized cross sections from a He3 target with the Solenoidal Large Intensity Device at JLab

In this paper we present a detailed impact study of semi-inclusive deep inelastic scattering unpolarized cross
section measurements using the proposed SoLID apparatus at Jefferson Lab. This type of data, collected at large
Bjorken xbj , moderate values of Q2, and small values of the transverse momentum of produced hadrons, PhT ,
allows the study of transverse momentum dependent (TMD) parton distribution and fragmentation functions in
a still poorly explored region. We present the projected results for charged light mesons based on simulated
data. For the azimuthal-angle integrated cross sections we adopt the TMD framework up to the next-to-next-tonext-
to-leading-logarithmic (N3LL) accuracy, while a simpler TMD parton model is employed for the study of azimuthal angular dependencies.