Electroweak input parameter schemes and precise theoretical predictions for Drell-Yan

At hadron colliders, charged and neutral Drell-Yan processes can be used for a high precision determination of the W-boson mass and the weak mixing angle through template fits. Since these measurements rely on Monte Carlo templates, it is crucial to have both flexible and accurate event generators. In this contribution, we present the latest updates of the Z_ew-BMNNPV package for the simulation of the neutral-current Drell-Yan process in the POWHEG-BOX framework, ranging from the development of new electroweak input parameter/renormalization schemes, like the MSbar one useful for the measurement of the MSbar running of the weak mixing angle, to the implementation of higher-order fermionic corrections. We perform a detailed comparison of the predictions obtained in the different input parameter/renormalization schemes, discussing their main features and the related theory uncertainties.

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Publication Details

Published
2024-12-26
DOI
https://doi.org/10.22323/1.476.0383
Primary Topic
Particle physics theoretical and experimental studies
Type
article
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Electroweak input parameter schemes and precise theoretical predictions for Drell-Yan

F. Piccinini, Mauro Chiesa, Clara Lavinia Del Pio
Particle physics theoretical and experimental studies
article

Electroweak input parameter schemes and precise theoretical predictions for Drell-Yan

F. Piccinini, Mauro Chiesa, Clara Lavinia Del Pio
article en

Abstract

At hadron colliders, charged and neutral Drell-Yan processes can be used for a high precision determination of the W-boson mass and the weak mixing angle through template fits. Since these measurements rely on Monte Carlo templates, it is crucial to have both flexible and accurate event generators. In this contribution, we present the latest updates of the Z_ew-BMNNPV package for the simulation of the neutral-current Drell-Yan process in the POWHEG-BOX framework, ranging from the development of new electroweak input parameter/renormalization schemes, like the MSbar one useful for the measurement of the MSbar running of the weak mixing angle, to the implementation of higher-order fermionic corrections. We perform a detailed comparison of the predictions obtained in the different input parameter/renormalization schemes, discussing their main features and the related theory uncertainties.

Openalex Percentile: Top 93%
Particle physics theoretical and experimental studies
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