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Precise test of lepton flavour universality in W -boson decays into muons and electrons in pp collisions at s = 13 Te V with the ATLAS detector

Abstract:

The ratio of branching ratios of the W boson to muons and electrons, RWμ/e=B(W→μν)/B(W→eν), has been measured using 140fb-1 of pp collision data at s=13 TeV collected with the ATLAS detector at the LHC, probing the universality of lepton couplings. The ratio is obtained from measurements of the tt¯ production cross-section in the ee, eμ and μμ dilepton final states. To reduce systematic uncertainties, it is normalised by the square root of the corresponding ratio RZμμ/ee for the Z boson measu...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1140/epjc/s10052-024-13070-4

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Role:
Author
ORCID:
0000-0002-6665-4934
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Role:
Author
ORCID:
0000-0001-7616-1554
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Role:
Author
ORCID:
0000-0002-5888-2734
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Role:
Author
ORCID:
0000-0002-0287-5869
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Role:
Author
ORCID:
0000-0002-1002-1652
Publisher:
SpringerOpen
Journal:
The European Physical Journal C More from this journal
Volume:
84
Issue:
10
Article number:
993
Publication date:
2024-10-01
Acceptance date:
2024-06-29
DOI:
EISSN:
1434-6052
Language:
English
Source identifiers:
2300042
Deposit date:
2024-10-01
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