Observation of electroweak production of W$^{+}$W$^{−}$ in association with jets in proton-proton collisions at $ \sqrt{s} $ = 13 TeV with the ATLAS detector - INSPIRE

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Observation of electroweak production of W $^{+}$ W $^{−}$ in association with jets in proton-proton collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector

ATLAS

Collaboration

Mar 7, 2024

42 pages

Published in:

JHEP 07 (2024) 254

Published: Jul 26, 2024

e-Print:

2403.04869 [hep-ex]

DOI:

10.1007/JHEP07(2024)254

Report number:

CERN-EP-2024-015

Experiments:

CERN-LHC-ATLAS

View in:

reference search11 citations

Citations per year

Abstract: (Springer)

A measurement of the production of W bosons with opposite electric charges in association with two jets is presented based on 140 fb

^{−1}

of data collected by the ATLAS detector in proton-proton collisions at

\sqrt{s}

= 13 TeV. The analysis is sensitive to the scattering of W bosons, which is of particular interest in the ATLAS physics programme as it can be used to probe the electroweak symmetry breaking mechanism of the Standard Model. This signal is observed with a significance of 7.1 standard deviations above the background expectation, while 6.2 standard deviations were expected. The measured cross-section is determined in a signal-enriched fiducial volume and is found to be 2.7 ± 0.5 fb, which is consistent with the theoretical prediction of

{2.20}_{-0.13}^{+0.14}

fb.[graphic not available: see fulltext]

Note:

42 pages in total, author list starting page 25, 7 figures, 4 tables, published in JHEP 07 (2024) 254. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2022-06

Hadron-Hadron Scattering
p p: scattering
p p: colliding beams
W: pair production
dijet: associated production
jet: pair production
W W: scattering
channel cross section: measured
electroweak interaction: symmetry breaking
charge: electric

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