Phenomenology of the minimal B-L extension of the Standard model: Z' and neutrinos
By L. Basso, Alexander Belyaev, S. Moretti, C. Shepherd-Themistocleous. 2008
217 citations recorded by the source corpus.
We present the Large Hadron Collider (LHC) discovery potential in the ${Z}^{\ensuremath{'}}$ and heavy neutrino sectors of a $U(1{)}_{B\ensuremath{-}L}$ enlarged standard model also encompassing 3 heavy Majorana neutrinos. This model exhibits novel signatures at the LHC, the most interesting arising from a ${Z}^{\ensuremath{'}}$ decay chain involving heavy neutrinos, eventually decaying into leptons and jets. In particular, this signature allows one to measure the ${Z}^{\ensuremath{'}}$ and heavy neutrino masses involved. In addition, over a large region of the parameter space, the heavy neutrinos are rather long-lived particles producing distinctive displaced vertices that can be seen in the detectors. Lastly, the simultaneous measurement of both the heavy neutrino mass and decay length enables an estimate of the absolute mass of the parent light neutrino.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/9b332cce4ebe6f79ea295cb9c15b3e8c64973a86
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In Nuclear and High Energy Physics
Citations in the corpus
- Lepton Number Violation: Seesaw Models and Their Collider Tests (2017, methodology): “Taking these into account, followed by the leptonic and/or hadronic decays ofW, Z and h, the detectable signatures include the lepton number violating, same-sign dileptons, NN → l±l±W∓W∓ → l±l± + nj [93, 301]; final states with three charged leptons, l±l±l∓ + nj+MET [325, 330, 331]; and fourcharged ”
- Search for new high-mass phenomena in the dilepton final state using 36 fb$^{-1}$ of proton-proton collision data at $\sqrt{s}$ = 13 TeV with the ATLAS detector (2017, methodology): “This parameterisation encompasses Z ′ bosons from many models, including the Z ′ χ belonging to the E6-motivated model of the previous section, the Z ′ 3R in a left-right symmetric model [13, 14] and the Z ′ B−L of the pure (B− L) model [15].”
- TeV scale see-saw mechanisms of neutrino mass generation, the Majorana nature of the heavy singlet neutrinos and (ββ)0ν-decay (2010, background): “[67, 68 ]). In this case, the production cross section of two heavy Majorana neutrinos can be largely enhanced.”