Understanding and constraining the PDF uncertainties in a W boson mass measurement with forward muons at the LHC

Farry, Stephen ORCID: 0000-0001-5119-9740, Lupton, Olli, Pili, Martina and Vesterinen, Mika (2019) Understanding and constraining the PDF uncertainties in a W boson mass measurement with forward muons at the LHC. EUROPEAN PHYSICAL JOURNAL C, 79 (6). 497-.

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Official URL: http://dx.doi.org/10.1140/epjc/s10052-019-6997-8

Abstract

Precision electroweak tests are a powerful probe of physics beyond the Standard Model, but the sensitivity is limited by the precision with which the W boson mass (MW) has been measured. The Parton Distribution Function (PDF) uncertainties are a potential limitation for measurements of MW with LHC data. It has recently been pointed out that, thanks to LHCb’s unique forward rapidity acceptance, a new measurement of MW by LHCb can improve this situation. Here we report on a detailed study on the mechanism driving the PDF uncertainty in the LHCb measurement of MW, and propose an approach which should reduce this uncertainty by roughly a factor of two using LHCb Run 2 data.

Item Type:	Article
Depositing User:	Symplectic Admin
Date Deposited:	20 Feb 2020 11:23
Last Modified:	17 Mar 2024 04:27
DOI:	10.1140/epjc/s10052-019-6997-8
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3075767