Report

PUBDB-2025-05802

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Updated projections for B0(s)→μ+μ− measurements with the ATLAS detector at the HL-LHC

ATLAS Collaboration (Collaboration author)DESY*

2025

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Please use a persistent id in citations: doi:10.3204/PUBDB-2025-05802

Report No.: ATL-PHYS-PUB-2025-016

Abstract: Updated estimates are presented for the expected precision of measurements of the branching fractions of the rare decays of B0s→μ+μ− and B0→μ+μ− with the ATLAS detector at the HL-LHC. Projections for the effective lifetime of B0s→μ+μ− are also provided for the first time. The projections are based upon existing analyses of 13TeV proton-proton collision data collected by the ATLAS experiment between 2015 and 2016. Statistical and systematic uncertainty estimates are presented assuming an integrated luminosity of 3000fb−1 for different prospective HL-LHC trigger working points.

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Contributing Institute(s):

1. LHC/ATLAS Experiment (ATLAS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. LHC: ATLAS

Appears in the scientific report 2025

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