Transverse momentum resummation for color sextet and antitriplet scalar production at the LHC

TL;DR

This paper develops a theoretical framework for accurately predicting the transverse momentum distribution of color sextet and antitriplet scalars produced at the LHC, incorporating soft gluon effects and higher-order resummation techniques.

Contribution

It introduces a novel soft function calculation for colored scalars and performs resummation at approximate NNLL accuracy, extending previous methods used for Z and Higgs bosons.

Findings

Soft function calculated at NLO for colored scalars

Resummation achieved at approximate NNLL accuracy

Discussion of non-perturbative effects and PDF uncertainties

Abstract

We study the factorization and resummation of the transverse momentum spectrum of the color sextet and antitriplet scalars produced at the LHC based on soft-collinear effective theory. Compared to Z boson and Higgs production, a soft function is required to account for the soft gluon emission from the final-state colored scalar. The soft function is calculated at the next-to-leading order, and the resummation is performed at the approximate next-to-next-to-leading logarithmic accuracy. The non-perturbative effects and PDF uncertainties are also discussed.