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Fiducial and differential cross-section measurements of electroweak $$W\gamma jj$$ production in pp collisions at $$\sqrt{s} = 13$$ TeV with the ATLAS detector

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  • Additional Information
    • Contributors:
      Departamento de Física Teórica; Facultad de Ciencias; Aad, G.; ATLAS Collaboration; HEP, INSPIRE; Współautorami artykułu są członkowie ATLAS Collaboration w liczbie 2913; Cristoforetti, M.; Di Luca, A.; Atlas, Collaboration; Centre de Physique des Particules de Marseille (CPPM); Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS); Laboratoire d'Annecy de Physique des Particules (LAPP); Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS); Laboratoire de Physique Subatomique et de Cosmologie (LPSC); Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP); Université Grenoble Alpes (UGA); Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab); Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS); Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU); Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)); Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA); Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)); Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS); AstroParticule et Cosmologie (APC (UMR_7164)); Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité); Laboratoire de Physique de Clermont (LPC); Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA); Laboratoire des deux Infinis de Toulouse (L2IT); Université Toulouse III - Paul Sabatier (UT3); Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS); ATLAS; Null, N; Aad, G; Aakvaag, E; Abbott, B; Abeling, K; Abicht, Nj; Abidi, Sh; Aboelela, M; Aboulhorma, A; Abramowicz, H; Abreu, H; Abulaiti, Y; Acharya, B; Ackermann, A; Bourdarios, Ca; Adamczyk, L; Addepalli, Sv; Addison, Mj; Adelman, J; Adiguzel, A; Adye, T; Affolder, Aa; Afik, Y; Agaras, Mn; Agarwala, J; Aggarwal, A; Agheorghiesei, C; Ahmad, A; Ahmadov, F; Ahmed, W; Ahuja, S; Ai, X; Aielli, G; Aikot, A; Tamlihat, Ma; Aitbenchikh, B; Aizenberg, I; Akbiyik, M; Åkesson, Tpa; Akimov, Av; Akiyama, D; Akolkar, Nn; Aktas, S; Khoury, Ka; Alberghi, Gl; Albert, J; Albicocco, P; Albouy, Gl; Alderweireldt, S; Alegria, Zl; Aleksa, M; Aleksandrov, In; Alexa, C; Alexopoulos, T; Alfonsi, F; Algren, M; Alhroob, M; Ali, B; Ali, Hmj; Ali, S; Alibocus, Sw; Aliev, M; Alimonti, G; Alkakhi, W; Allaire, C; Allbrooke, Bmm; Allen, Jf; Flores, Caa; Allport, Pp; Aloisio, A; Alonso, F; Alpigiani, C; Estevez, Ma; Fernandez, Aa; Cardoso, Ma; Alviggi, Mg; Aly, M; Coutinho, Ya; Ambler, A; Amelung, C; Amerl, M; Ames, Cg; Amidei, D; Amirie, Kj; Santos, Spad; Amos, Kr; An, S; Ananiev, V; Anastopoulos, C; Andeen, T; Anders, Jk; Andrean, Sy; Andreazza, A; Angelidakis, S; Angerami, A; Anisenkov, Av; Annovi, A; Antel, C; Anthony, Mt; Antipov, E; The ATLAS Collaboration
    • Publication Information:
      Preprint
    • Publication Information:
      Springer Science and Business Media LLC, 2024.
    • Publication Date:
      2024
    • Abstract:
      The observation of the electroweak production of a W boson and a photon in association with two jets, using pp collision data at the Large Hadron Collider at a centre of mass energy of $$\sqrt{s}=13$$ s = 13 TeV, is reported. The data were recorded by the ATLAS experiment from 2015 to 2018 and correspond to an integrated luminosity of 140 fb$$^{-1}$$ - 1 . This process is sensitive to the quartic gauge boson couplings via the vector boson scattering mechanism and provides a stringent test of the electroweak sector of the Standard Model. Events are selected if they contain one electron or muon, missing transverse momentum, at least one photon, and two jets. Multivariate techniques are used to distinguish the electroweak $$W\gamma jj$$ W γ j j process from irreducible background processes. The observed significance of the electroweak $$W\gamma jj$$ W γ j j process is well above six standard deviations, compared to an expected significance of 6.3 standard deviations. Fiducial and differential cross sections are measured in a fiducial phase space close to the detector acceptance, which are in reasonable agreement with leading order Standard Model predictions from MadGraph5+Pythia8 and Sherpa. The results are used to constrain new physics effects in the context of an effective field theory.
    • File Description:
      application/pdf; 34 páginas
    • ISSN:
      1434-6052
    • Accession Number:
      10.1140/epjc/s10052-024-13311-6
    • Accession Number:
      10.3204/pubdb-2024-06764
    • Accession Number:
      10.3204/pubdb-2024-05850
    • Accession Number:
      10.1140/epjc/s10052-024-13311-610.1140/epjc/s10052-024-13311-6
    • Rights:
      CC BY
      CC BY NC
    • Accession Number:
      edsair.doi.dedup.....5d92472ce853d4264785c15da2aa6c91