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Observation of double parton scattering in same-sign W boson pair production in pp collisions at √s = 13 TeV with the ATLAS detector

Aad, G. ; Åkesson, T.P.A. LU orcid ; Astrand, K.S.V. LU ; Calic, L. LU orcid ; Doglioni, C. LU ; Ekman, P.A. LU orcid ; Hedberg, V. LU ; Herde, H. LU orcid ; Konya, B. LU and Lytken, E. LU orcid , et al. (2025) In Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 870.
Abstract
This letter reports the measurement of double parton scattering in same-sign W boson pair production with the ATLAS detector. The data set used corresponds to an integrated luminosity of 140 fb−1 of proton–proton collisions at a center-of-mass energy of 13 TeV, collected during Run 2 of the Large Hadron Collider. The study is performed in final states including two same-charge leptons, electron or muon, missing transverse momentum, and up to one jet. An excess of events is observed over the expected background contributions with a significance of 8.8 standard deviations. The measured fiducial cross section times leptonic branching fraction is 4.59±0.64 fb. The measurement corresponds to a double parton scattering effective cross section of... (More)
This letter reports the measurement of double parton scattering in same-sign W boson pair production with the ATLAS detector. The data set used corresponds to an integrated luminosity of 140 fb−1 of proton–proton collisions at a center-of-mass energy of 13 TeV, collected during Run 2 of the Large Hadron Collider. The study is performed in final states including two same-charge leptons, electron or muon, missing transverse momentum, and up to one jet. An excess of events is observed over the expected background contributions with a significance of 8.8 standard deviations. The measured fiducial cross section times leptonic branching fraction is 4.59±0.64 fb. The measurement corresponds to a double parton scattering effective cross section of 10.6±1.8 mb. © 2025 The Authors. (Less)
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publishing date
type
Contribution to journal
publication status
published
subject
keywords
DPS, Same-sign WW
in
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
870
article number
139892
publisher
Elsevier
external identifiers
  • scopus:105026395827
ISSN
0370-2693
DOI
10.1016/j.physletb.2025.139892
language
English
LU publication?
yes
id
b630d29d-34df-4ed5-8db0-b9b84a43e2c2
date added to LUP
2026-04-08 11:37:51
date last changed
2026-04-08 11:38:59
@article{b630d29d-34df-4ed5-8db0-b9b84a43e2c2,
  abstract     = {{This letter reports the measurement of double parton scattering in same-sign W boson pair production with the ATLAS detector. The data set used corresponds to an integrated luminosity of 140 fb−1 of proton–proton collisions at a center-of-mass energy of 13 TeV, collected during Run 2 of the Large Hadron Collider. The study is performed in final states including two same-charge leptons, electron or muon, missing transverse momentum, and up to one jet. An excess of events is observed over the expected background contributions with a significance of 8.8 standard deviations. The measured fiducial cross section times leptonic branching fraction is 4.59±0.64 fb. The measurement corresponds to a double parton scattering effective cross section of 10.6±1.8 mb. © 2025 The Authors.}},
  author       = {{Aad, G. and Åkesson, T.P.A. and Astrand, K.S.V. and Calic, L. and Doglioni, C. and Ekman, P.A. and Hedberg, V. and Herde, H. and Konya, B. and Lytken, E. and Poettgen, R. and Smirnova, O. and Sur, N. and Wallin, E.J. and Zwalinski, L.}},
  issn         = {{0370-2693}},
  keywords     = {{DPS; Same-sign WW}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics}},
  title        = {{Observation of double parton scattering in same-sign W boson pair production in pp collisions at √s = 13 TeV with the ATLAS detector}},
  url          = {{http://dx.doi.org/10.1016/j.physletb.2025.139892}},
  doi          = {{10.1016/j.physletb.2025.139892}},
  volume       = {{870}},
  year         = {{2025}},
}