Transverse-momentum, threshold and joint resummations for slepton pair production at hadron colliders

TL;DR

This paper develops advanced resummation techniques at next-to-leading logarithmic accuracy to improve predictions of slepton pair production at hadron colliders, providing more precise cross section calculations.

Contribution

It introduces combined transverse-momentum, threshold, and joint resummation formalisms at NLL accuracy for slepton pair production, matching them with fixed-order results.

Findings

Resummed cross sections differ significantly from fixed-order predictions.

Numerical results for selectron and stau production show improved precision.

Comparison demonstrates the importance of resummation for accurate collider predictions.

Abstract

We present precision calculations of the transverse-momentum spectrum and the invariant-mass distribution for slepton pair production at hadron colliders. We implement the transverse-momentum, threshold and joint resummation formalisms at the next-to-leading logarithmic accuracy and consistently match the obtained result with the pure perturbative result at the first order in the strong coupling constant, i.e. at order alpha_s. We give numerical predictions for selectron and stau pair production, and compare the various resummed cross sections with the perturbative result.