Transverse momentum dependent parton distributions of pion in the light-front holographic model

TL;DR

This paper employs the light-front holographic model to compute transverse momentum dependent parton distributions of the pion, including unpolarized and Boer-Mulders functions, and compares results with other models, providing predictions for future experiments.

Contribution

It introduces a novel calculation of pion TMDs using an improved light-front holographic approach with spin effects, and performs LO evolution to connect with experimental scales.

Findings

Calculated unpolarized and Boer-Mulders TMDs for pion.

Compared results with other theoretical models.

Performed LO evolution to match experimental scales.

Abstract

Using the light-front holographic model, we study the transverse momentum dependent parton distributions (TMDs) for the case of pion. At leading twist, the unpolarized parton distribution function $ f_{1\pi}(x,\bfk^{2}) $ and the Boer-Mulders function $ h_{1\pi}^{\bot}(x,\bfk^{2}) $ are obtained for pion. We calculate both the functions using the light-front holographic model with spin improved wave function and compare the predicted results with available results of other models. In order to provide inputs in predicting future experimental data, a LO evolution is performed from model scale to experimental scale for the case of unpolarized parton distribution function $ f_{1\pi}(x,\bfk^{2}) $.