Observation of Collider Muon Neutrinos with the SND@LHC Experiment


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Albanese R., Alexandrov A., Alicante F., Anokhina A., Asada T., Battilana C., ...Daha Fazla

PHYSICAL REVIEW LETTERS, cilt.131, sa.3, 2023 (SCI-Expanded) identifier identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 131 Sayı: 3
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1103/physrevlett.131.031802
  • 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
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

We report the direct observation of muon neutrino interactions with the SND@LHC detector at the Large Hadron Collider. A dataset of proton-proton collisions at root s = 13.6 TeV collected by SND@LHC in 2022 is used, corresponding to an integrated luminosity of 36.8 fb(-1). The search is based on information from the active electronic components of the SND@LHC detector, which covers the pseudorapidity region of 7.2 < eta < 8.4, inaccessible to the other experiments at the collider. Muon neutrino candidates are identified through their charged-current interaction topology, with a track propagating through the entire length of the muon detector. After selection cuts, 8 nu(mu) interaction candidate events remain with an estimated background of 0.086 events, yielding a significance of about 7 standard deviations for the observed nu(mu) signal.