A search for prompt lepton-jets in pp collisions at root s=8 TeV with the ATLAS detector


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Aad G., Abbott B., Abdallah J., Abdinov O., Aben R., Abolins M., ...Daha Fazla

JOURNAL OF HIGH ENERGY PHYSICS, cilt.2016, sa.2, ss.1-51, 2016 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 2016 Sayı: 2
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1007/jhep02(2016)062
  • Dergi Adı: JOURNAL OF HIGH ENERGY PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1-51
  • Anahtar Kelimeler: Hadron-Hadron scattering, VECTOR GAUGE BOSON, PHI-MESON DECAYS, EXCLUSION LIMITS, DARK PHOTON, E(+)E(-), FORCES
  • Gazi Üniversitesi Adresli: Hayır

Özet

A search is presented for a new, light boson with a mass of about 1 GeV and decaying promptly to jets of collimated electrons and/or muons (lepton-jets). The analysis is performed with 20.3 fb(-1) of data collected by the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a centre-of-mass energy of 8 TeV. Events are required to contain at least two lepton-jets. This study finds no statistically significant deviation from predictions of the Standard Model and places 95% confidence-level upper limits on the contribution of new phenomena beyond the SM, incuding SUSY-portal and Higgs-portal models, on the number of events with lepton-jets.