Search for a leptoquark in events with a hadronically decaying τ-lepton and missing transverse momentum using pp collisions at s=13TeV with the ATLAS detector


Aad G., Aakvaag E., Abbott B., Abdelhameed S., Abeling K., Abicht N., ...Daha Fazla

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, cilt.882, 2026 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 882
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1016/j.physletb.2026.141033
  • Dergi Adı: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, INSPEC, MathSciNet, zbMATH, Directory of Open Access Journals, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO)
  • Anahtar Kelimeler: Leptoquarks, Resonant production, Tau leptons
  • İstanbul Üniversitesi Adresli: Evet

Özet

A search for leptoquark signals is performed in final states with a hadronically decaying τ -lepton and missing transverse momentum, using data from proton–proton collisions at a centre-of-mass energy of s=13 TeV recorded by the ATLAS detector at the Large Hadron Collider during Run 2 (2015–18), corresponding to an integrated luminosity of 140 fb−1. The analysis is designed to probe both resonant production and non-resonant t -channel exchange of the leptoquark, covering a wide range of coupling scenarios. No excess above the Standard Model background prediction is observed. Limits are set on the couplings in the benchmark U 1 vector-leptoquark model at 95% confidence level for masses between 1.5 TeV and 3.0 TeV.