Lepton number conservation, long-lived quarks and superweak bileptonic decays

Lepton number conservation, long-lived quarks and superweak bileptonic decays

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...

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Main Author: Paul Howard Frampton
Format: Article
Language:English
Published: Elsevier 2015-07-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269315004141
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spelling doaj-244dddc731d846ea8ac81050c702f6f22020-11-25T00:01:28ZengElsevierPhysics Letters B0370-26931873-24452015-07-01747C18718910.1016/j.physletb.2015.05.070Lepton number conservation, long-lived quarks and superweak bileptonic decaysPaul Howard FramptonIn 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.http://www.sciencedirect.com/science/article/pii/S0370269315004141
collection DOAJ
language English
format Article
sources DOAJ
author Paul Howard Frampton
spellingShingle Paul Howard Frampton
Lepton number conservation, long-lived quarks and superweak bileptonic decays
Physics Letters B
author_facet Paul Howard Frampton
author_sort Paul Howard Frampton
title Lepton number conservation, long-lived quarks and superweak bileptonic decays
title_short Lepton number conservation, long-lived quarks and superweak bileptonic decays
title_full Lepton number conservation, long-lived quarks and superweak bileptonic decays
title_fullStr Lepton number conservation, long-lived quarks and superweak bileptonic decays
title_full_unstemmed Lepton number conservation, long-lived quarks and superweak bileptonic decays
title_sort lepton number conservation, long-lived quarks and superweak bileptonic decays
publisher Elsevier
series Physics Letters B
issn 0370-2693
1873-2445
publishDate 2015-07-01
description 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.
url http://www.sciencedirect.com/science/article/pii/S0370269315004141
work_keys_str_mv AT paulhowardframpton leptonnumberconservationlonglivedquarksandsuperweakbileptonicdecays
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