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

ATLAS Collaboration; S. Alderweireldt; J.F. Allen; T.M. Carter; P. J.  Clark; D. Duda; S. M. Farrington; Y. Gao; J.M. Gargan; R.Y. Gonzalez Andana; C. Leonidopoulos; V. J.  Martin; L. Mijović; V.A. Parrish; E.A. Pender; T. Qiu; E.P. Takeva; N. Themistokleous; E.M. Villhauer; B.M. Wynne; Z. Xu; E. Zaid

doi:10.1103/PhysRevLett.133.161804

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

ATLAS Collaboration, S. Alderweireldt, J.F. Allen, T.M. Carter, P. J. Clark, D. Duda, S. M. Farrington, Y. Gao, J.M. Gargan, R.Y. Gonzalez Andana, C. Leonidopoulos, V. J. Martin, L. Mijović, V.A. Parrish, E.A. Pender, T. Qiu, E.P. Takeva, N. Themistokleous, E.M. Villhauer, B.M. WynneZ. Xu, E. Zaid

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Article number	161804
Pages (from-to)	1-23
Number of pages	23
Journal	Physical Review Letters
Volume	133
Issue number	16
Early online date	17 Oct 2024
DOIs	https://doi.org/10.1103/PhysRevLett.133.161804
Publication status	Published - 18 Oct 2024

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10.1103/PhysRevLett.133.161804Licence: Creative Commons: Attribution (CC-BY)

3 Finished
3 Active

Upgrade of the ATLAS detector at the LHC (2023-26)
Clark, P. (Principal Investigator)
Science and Technology Facilities Council
1/04/23 → 31/03/26
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
Science and Technology Facilities Council
1/04/23 → 31/03/26
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
Science and Technology Facilities Council
1/10/22 → 31/03/26
Project: Research

Cite this

ATLAS Collaboration, Alderweireldt, S., Allen, J. F., Carter, T. M., Clark, P. J., Duda, D., Farrington, S. M., Gao, Y., Gargan, J. M., Gonzalez Andana, R. Y., Leonidopoulos, C., Martin, V. J., Mijović, L., Parrish, V. A., Pender, E. A., Qiu, T., Takeva, E. P., Themistokleous, N., Villhauer, E. M., ... Zaid, E. (2024). Search for the Exclusive 𝑊 Boson Hadronic Decays 𝑊±→𝜋±⁢𝛾, 𝑊±→𝐾±⁢𝛾 and 𝑊±→𝜌±⁢𝛾 with the ATLAS Detector. Physical Review Letters, 133(16), 1-23. Article 161804. https://doi.org/10.1103/PhysRevLett.133.161804

@article{a0ec09c73ada4a408324285631e67e86,

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

abstract = "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.",

author = "{ATLAS Collaboration} and S. Alderweireldt and J.F. Allen and T.M. Carter and Clark, {P. J.} and D. Duda and Farrington, {S. M.} and Y. Gao and J.M. Gargan and {Gonzalez Andana}, R.Y. and C. Leonidopoulos and Martin, {V. J.} and L. Mijovi{\'c} and V.A. Parrish and E.A. Pender and T. Qiu and E.P. Takeva and N. Themistokleous and E.M. Villhauer and B.M. Wynne and Z. Xu and E. Zaid",

year = "2024",

month = oct,

day = "18",

doi = "10.1103/PhysRevLett.133.161804",

language = "English",

volume = "133",

pages = "1--23",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "16",

}

ATLAS Collaboration, Alderweireldt, S, Allen, JF, Carter, TM, Clark, PJ , Duda, D , Farrington, SM , Gao, Y, Gargan, JM, Gonzalez Andana, RY, Leonidopoulos, C , Martin, VJ , Mijović, L, Parrish, VA, Pender, EA, Qiu, T, Takeva, EP, Themistokleous, N, Villhauer, EM, Wynne, BM , Xu, Z & Zaid, E 2024, 'Search for the Exclusive 𝑊 Boson Hadronic Decays 𝑊±→𝜋±⁢𝛾, 𝑊±→𝐾±⁢𝛾 and 𝑊±→𝜌±⁢𝛾 with the ATLAS Detector', Physical Review Letters, vol. 133, no. 16, 161804, pp. 1-23. https://doi.org/10.1103/PhysRevLett.133.161804

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AU - ATLAS Collaboration

AU - Alderweireldt, S.

AU - Allen, J.F.

AU - Carter, T.M.

AU - Clark, P. J.

AU - Duda, D.

AU - Farrington, S. M.

AU - Gao, Y.

AU - Gargan, J.M.

AU - Gonzalez Andana, R.Y.

AU - Leonidopoulos, C.

AU - Martin, V. J.

AU - Mijović, L.

AU - Parrish, V.A.

AU - Pender, E.A.

AU - Qiu, T.

AU - Takeva, E.P.

AU - Themistokleous, N.

AU - Villhauer, E.M.

AU - Wynne, B.M.

AU - Xu, Z.

AU - Zaid, E.

PY - 2024/10/18

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N2 - 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.

AB - 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.

U2 - 10.1103/PhysRevLett.133.161804

DO - 10.1103/PhysRevLett.133.161804

M3 - Article

SN - 0031-9007

VL - 133

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JO - Physical Review Letters

JF - Physical Review Letters

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ER -

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

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Projects

Upgrade of the ATLAS detector at the LHC (2023-26)

Experimental Particle Physics at the University of Edinburgh

Experimental Particle Physics at the University of Edinburgh

Cite this