Observation of Single-Top-Quark Production in Association with a Photon Using the ATLAS Detector


Aad G., Abbott B., Abbott D., Abeling K., Abidi S., Aboulhorma A., ...Daha Fazla

Physical Review Letters, cilt.131, sa.18, 2023 (SCI-Expanded) identifier identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 131 Sayı: 18
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1103/physrevlett.131.181901
  • Dergi Adı: Physical Review Letters
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Compendex, INSPEC, zbMATH, DIALNET
  • Ankara Üniversitesi Adresli: Evet

Özet

This Letter reports the observation of single top quarks produced together with a photon, which directly probes the electroweak coupling of the top quark. The analysis uses Formula Presented of 13 TeV proton-proton collision data collected with the ATLAS detector at the Large Hadron Collider. Requiring a photon with transverse momentum larger than 20 GeV and within the detector acceptance, the fiducial cross section is measured to be Formula Presented, to be compared with the standard model prediction of Formula Presented at next-to-leading order in QCD.