Heavy Z′ bosons in the secluded U(1) ′ model at hadron colliders


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Frank M., Selbuz L., TURAN İ.

European Physical Journal C, cilt.81, sa.5, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 81 Sayı: 5
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1140/epjc/s10052-021-09218-1
  • Dergi Adı: European Physical Journal C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, zbMATH, Directory of Open Access Journals
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

© 2021, The Author(s).We study Z′ phenomenology at hadron colliders in an U(1) ′ extended MSSM. We choose a U(1) ′ model with a secluded sector, where the tension between the electroweak scale and developing a large enough mass for Z′ is resolved by incorporating three additional singlet superfields into the model. We perform a detailed analysis of the production, followed by decays, including into supersymmetric particles, of a Z′ boson with mass between 4 and 5.2 TeV, with particular emphasis on its possible discovery. We select three different scenarios consistent with the latest available experimental data and relic density constraints, and concentrate on final signals with 2ℓ+⧸ET, 4ℓ+⧸ET and 6ℓ+⧸ET. Including the SM background from processes with two, three or four vector bosons, we show the likelihood of observing a Z′ boson is not promising for the HL-LHC at 14 TeV. While at 27 and 100 TeV, the situation is more optimistic, and we devise specific benchmark scenarios which could be observed.