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Search for excited muons in p(p)over-bar collisions at root s=1.96 TeV

Abazov, VM; Abbott, B; Abolins, M; Acharya, BS; Adams, M; Adams, T; Agelou, M; ... Collaboration, D; + view all (2006) Search for excited muons in p(p)over-bar collisions at root s=1.96 TeV. Physical Review D , 73 (11) , Article 111102. 10.1103/PhysRevD.73.111102. Green open access

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Abstract

We present the results of a search for the production of an excited state of the muon, μ*, in proton antiproton collisions at √s=1.96  TeV. The data have been collected with the D0 experiment at the Fermilab Tevatron Collider and correspond to an integrated luminosity of approximately 380  pb-1. We search for μ* in the process pp̅ →μ*μ, with the μ* subsequently decaying to a muon plus photon. No excess above the standard model expectation is observed in data. Interpreting our data in the context of a model that describes μ* production by four-fermion contact interactions and μ* decay via electroweak processes, we set a 95% confidence level production cross section upper limit ranging from 0.057 to 0.112 pb, depending on the mass of the excited muon. Choosing the scale for contact interactions to be Λ=1  TeV, excited muon masses below 618 GeV are excluded.

Type: Article
Title: Search for excited muons in p(p)over-bar collisions at root s=1.96 TeV
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevD.73.111102
Publisher version: http://dx.doi.org/10.1103/PhysRevD.73.111102
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/131824
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