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Searching for spin-3/2 leptons

Mohammad Abdullah, Kevin Bauer, Luis Gutierrez, John Sandy, and Daniel Whiteson
Phys. Rev. D 95, 035008 – Published 8 February 2017

Abstract

A model of spin-3/2 vectorlike leptons is introduced, which serve as an alternative probe of possible lepton compositeness. Possible signatures at the Large Hadron Collider are explored, and current data are used to constrain the masses of the hypothetical new leptons.

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  • Received 1 November 2016

DOI:https://doi.org/10.1103/PhysRevD.95.035008

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Mohammad Abdullah, Kevin Bauer, Luis Gutierrez, John Sandy, and Daniel Whiteson

  • Department of Physics and Astronomy, University of California, Irvine, California 92697, USA

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Issue

Vol. 95, Iss. 3 — 1 February 2017

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Images

  • Figure 1
    Figure 1

    Production modes of the spin-3/2 leptons via standard model electroweak bosons.

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  • Figure 2
    Figure 2

    Distribution of HTleptons for simulated spin-3/2 lepton samples; the selection required HTleptons>500GeV. The top pane shows the case where only electrons are considered; the bottom pane shows the case where electrons and muons are considered.

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  • Figure 3
    Figure 3

    Overall efficiency of the selection defined in Ref. [19] which requires HTleptons>500GeV for OSSF off-Z, as a function of the spin-3/2 lepton mass. The top pane shows the case where only electrons are considered; the bottom pane shows the case where electrons and muons are considered.

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  • Figure 4
    Figure 4

    Observed and expected limits as a function of * and ν* mass, in the case of *=e*, ν*=νe*.

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  • Figure 5
    Figure 5

    Observed and expected limits as a function of * and ν* mass, in the case of *=e*, μ*, ν*=νe*, νμ*.

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