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Lepton Number Conservation, Long-lived Quarks and Superweak Bileptonic Decays

2015/04/19 by Paul H. Frampton, Paul Howard Frampton, Frampton, Paul Howard
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.1504.05877

7 pages LaTeX

arxiv created 2015/04/19 · openalex publication_date 2015/04/19 · arxiv updated 2015/04/23 · openalex created_date 2022/10/01 · openalex updated_date 2026/07/28

Abstract

In the upcoming LHC Run 2, at √(s) ∼13 TeV, it is suggested to seek unusually charged (Q= -4/3 and +5/3) quarks with mass MQ ∼ 3 TeV which carry lepton number (L = +2 and -2 respectively) and decay superweakly to a bilepton Y with mass MY∼2.5 TeV and a usual quark. These long-lived decays will have displaced decay vertices and produce a striking final state in pp which contains two separated jets together with two pairs of correlated like-sign charged leptons. Such a process was inaccessible energetically in LHC Run 1 with √(s) ∼8 TeV. The simplest theoretical explanation is the 331-model which has new physics necessarily below 4 TeV and which explains the existence of three families by anomaly cancellation.

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