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Setting Limits on Supersymmetry Using Simplified Models

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Published on: November 15, 2013

The subtraction method: electroweak corrections and power suppressed contributions.

Luca Buonocore^1,2, Massimiliano Grazzini², Francesco Tramontano¹

¹1Dipartimento di Fisica, Università di Napoli Federico II and INFN, Sezione di Napoli, 80126 Naples, Italy.

The European Physical Journal. C, Particles and Fields

|April 1, 2020

Summary

This study applies the $$ subtraction formalism to electroweak corrections in Drell-Yan processes. It reveals that final-state radiation introduces linear power corrections, potentially impacting the $$ subtraction method's efficiency.

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Area of Science:

High Energy Physics
Quantum Chromodynamics
Electroweak Interactions

Background:

Transverse-momentum resummation is crucial for heavy-quark hadroproduction.
Electroweak corrections are essential for precise Drell-Yan cross-section calculations.
The $$ subtraction formalism offers a method to handleSoft gluon emissions.

Purpose of the Study:

To apply the $$ subtraction formalism to electroweak corrections in the Drell-Yan process.
To investigate power-suppressed contributions in the $$ subtraction formula.
To analyze the impact of initial- and final-state radiation on the Drell-Yan cross section.

Main Methods:

Application of the $$ subtraction formalism.
Analytical computation of leading power corrections from initial- and final-state radiation.
Analysis of the parameter $$ (transverse momentum over invariant mass).

Main Results:

Electroweak corrections to the Drell-Yan mechanism were computed using the $$ subtraction formalism.
Initial-state radiation yields quadratic power corrections in $$, consistent with prior literature.
Final-state radiation introduces linear power corrections in $$, potentially challenging the $$ subtraction method.

Conclusions:

The study provides the first application of the $$ subtraction formalism to electroweak corrections in the Drell-Yan process.
Linear power corrections from final-state radiation require careful consideration for the efficiency of the $$ subtraction procedure.
The calculation's extension to differential distributions is discussed, paving the way for more refined theoretical predictions.