Cover Image

Search for the Exclusive W Boson Hadronic Decays W± → π±γ, W± → K±γ and W± → ρ±γ with the ATLAS Detector

A search for the exclusive hadronic decays 𝑊±→𝜋±⁢𝛾, 𝑊± →𝐾±⁢𝛾, and 𝑊± →𝜌±⁢𝛾 is performed using up to 140 fb−1 of proton-proton collisions recorded with the ATLAS detector at a center-of-mass energy of √𝑠 =13 TeV. If observed, these rare processes would provide a unique test bench for the quantum chro...

Full description

Saved in:
Bibliographic Details
Main Authors: Aad, Georges (Author) , Baltes, Lisa Marie (Author) , Bartels, Falk (Author) , Czurylo, Marta (Author) , Rio, Fernando del (Author) , Dittmeier, Sebastian (Author) , Dunford, Monica (Author) , Franchino, Silvia (Author) , Junkermann, Thomas (Author) , Klassen, Martin (Author) , Mkrtchyan, Tigran (Author) , Ott, Philipp (Author) , Rassloff, Damir Fabrice (Author) , Rodriguez Bosca, Sergi (Author) , Sauer, Christof (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Sothilingam, Varsiha (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Vigani, Luigi (Author) , Weber, Sebastian (Author) , Wessels, Martin (Author) , Zinßer, Joachim (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 17 October 2024
In: Physical review letters
Year: 2024, Volume: 133, Issue: 16, Pages: 1-23
ISSN:1079-7114
DOI:10.1103/PhysRevLett.133.161804
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevLett.133.161804
Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.133.161804
Get full text
Author Notes:G. Aad et al., (ATLAS Collaboration)
Description
Summary:A search for the exclusive hadronic decays 𝑊±→𝜋±⁢𝛾, 𝑊± →𝐾±⁢𝛾, and 𝑊± →𝜌±⁢𝛾 is performed using up to 140 fb−1 of proton-proton collisions recorded with the ATLAS detector at a center-of-mass energy of √𝑠 =13 TeV. If observed, these rare processes would provide a unique test bench for the quantum chromodynamics factorization formalism used to calculate cross sections at colliders. Additionally, at future colliders, these decays could offer a new way to measure the 𝑊 boson mass through fully reconstructed decay products. The search results in the most stringent upper limits to date on the branching fractions ℬ⁡(𝑊±→𝜋±⁢𝛾)<1.9×10−6, ℬ⁡(𝑊±→𝐾±⁢𝛾)<1.7×10−6, ℬ⁡(𝑊±→𝜌±⁢𝛾)<5.2×10−6 at 95% confidence level.
Item Description:ATLAS Collaboration: G. Aad, L.M. Baltes, F. Bartels, M.M. Czurylo, F. Del Rio, S.J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, M. Klassen, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, S. Rodriguez Bosca, C. Sauer, A. Schoening, H.-C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, L. Vigani, S. M. Weber, M. Wessels, J. Zinsser und weitere 2939
Im Titel ist das Symbol "±" hochgestellt
Gesehen am 13.10.2025
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.133.161804

Similar Items