Search for electroweak-scale dijet resonances using trigger-level analysis with the ATLAS detector in 132 fb − 1 of pp collisions at (Formula presented) = 13 TeV


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

Physical Review D, cilt.112, sa.9, 2025 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 112 Sayı: 9
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1103/15p2-bkg8
  • Dergi Adı: Physical Review D
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, INSPEC, MathSciNet, zbMATH, Nature Index
  • Ankara Üniversitesi Adresli: Evet

Özet

This article reports on a search for dijet resonances using 132 fb−1 of pp collision data recorded at (Formula presented) ¼ 13 TeV by the ATLAS detector at the Large Hadron Collider. The search is performed solely on jets reconstructed within the ATLAS trigger to overcome bandwidth limitations imposed on conventional single-jet triggers, which would otherwise reject data from decays of sub-TeV dijet resonances. Collision events with two jets satisfying transverse momentum thresholds of pT ≥ 85 GeV and jet rapidity separation of jy*j < 0.6 are analysed for dijet resonances with invariant masses from 375 to 1800 GeV. A data-driven background estimate is used to model the dijet mass distribution from multijet processes. No significant excess above the expected background is observed. Upper limits are set at 95% confidence level on coupling values for a benchmark leptophobic axial-vector Z0 model and on the production cross section for a new resonance contributing a Gaussian-distributed line-shape to the dijet mass distribution.