Abazov, V. M. ; Mondal, N. K. ; et., al (2006) Search for excited muons in pp¯ collisions at √s=1.96 TeV Physical Review D - Particles, Fields, Gravitation and Cosmology, 73 (11). 111102_1-111102_8. ISSN 1550-7998
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Official URL: http://prd.aps.org/abstract/PRD/v73/i11/e111102
Related URL: http://dx.doi.org/10.1103/PhysRevD.73.111102
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 D∅ experiment at the Fermilab Tevatron Collider and correspond to an integrated luminosity of approximately 380 pb-1. We search for μ+ in the process pp¯ →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.
Item Type: | Article |
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Source: | Copyright of this article belongs to The American Physical Society. |
ID Code: | 88270 |
Deposited On: | 27 Mar 2012 11:45 |
Last Modified: | 27 Mar 2012 11:45 |
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