Proposal for measuring new transverse momentum dependent parton distributions $g_{1T}$ and $h_{1L}^\perp$ through semi-inclusive deep inelastic scattering

TL;DR

This paper calculates two specific transverse momentum dependent parton distributions, $g_{1T}$ and $h_{1L}^ot$, within a quark-diquark model and predicts their measurable asymmetries in SIDIS experiments at various facilities.

Contribution

It introduces calculations of the $g_{1T}$ and $h_{1L}^ot$ distributions in a light-cone quark-diquark model and provides predictions for their experimental asymmetries.

Findings

Predicted single and double spin asymmetries for $g_{1T}$ and $h_{1L}^ot$ in SIDIS.

Demonstrated the feasibility of measuring these TMDs at HERMES, COMPASS, and JLab.

Provided theoretical estimates to guide future experimental efforts.

Abstract

We calculate $g_{1T}$ and $h_{1L}^\perp$, two of the eight leading twist transverse momentum dependent parton distributions (TMDs), in the light-cone quark-diquark model. The new TMDs can be measured through semi-inclusive deep inelastic scattering (SIDIS). We present predictions of the single and double spin asymmetries related to $g_{1T}$ and $h_{1L}^\perp$ in SIDIS at HERMES, COMPASS, and JLab kinematics respectively.