Measurement of the W boson mass with 4.3 fb^-1 of D0 Run II data
Hengne Li (for the D0 collaboration)
TL;DR
This paper reports a precise measurement of the W boson mass using 4.3 fb^-1 of data from the D0 detector at Fermilab, achieving a result that improves the accuracy of previous measurements.
Contribution
It provides a new, more precise measurement of the W boson mass by analyzing a large dataset from Fermilab's Tevatron collider, combining multiple data samples.
Findings
Measured W boson mass as 80.367 +/- 0.026 GeV
Combined result yields W boson mass of 80.375 +/- 0.023 GeV
Enhanced precision over previous measurements
Abstract
A measurement of the W boson mass using 4.3 fb^-1 of integrated luminosity collected with the D0 detector during Run II of the Fermilab Tevatron collider is presented. Based on a sample of 1.68 * 10^6 W->enu candidate events, the W boson mass is measured to be M_W = 80.367 +/- 0.026 GeV. Combining this result with an earlier D0 result determined using an independent Run II data sample of 1 fb^-1 of integrated luminosity, yields M_W = 80.375 +/- 0.023 GeV.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Cosmology and Gravitation Theories · Dark Matter and Cosmic Phenomena