Search for excited and exotic muons in the mu gamma decay channel in p anti-p collisions at s(1/2) = 1.96-TeV

The authors present a search for excited and exotic muon states {mu}*, conducted using an integrated luminosity of 371 pb{sup -1} of data collected in p{bar p} collisions at {radical}s = 1.96 TeV at the Tevatron with the CDF II detector. They search for associated production of {mu}{mu}* followed by...

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Bibliographic Details
Published in:Physical review letters 2006-06, Vol.97
Main Authors: Abulencia, A, Acosta, D, Adelman, Jahred A, Affolder, T, Akimoto, T, Albrow, M G, Ambrose, D, Amerio, S, Amidei, D, Anastassov, A, Anikeev, K, /Taiwan, Inst.Phys. /Argonne /Barcelona, IFAE /Barcelona, Autonoma U. /Baylor U. /Bologna U. /Brandeis U. /UC, Davis /UC, San Diego /UC, Santa Barbara /Cantabria Inst. of Phys
Format: Article
Language:English
Subjects:
DECAY
Experiment-HEP
FERMILAB COLLIDER DETECTOR
FERMILAB TEVATRON
GAMMA DECAY
HADRONS
LUMINOSITY
MUONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PRODUCTION
STANDARD MODEL
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Summary:The authors present a search for excited and exotic muon states {mu}*, conducted using an integrated luminosity of 371 pb{sup -1} of data collected in p{bar p} collisions at {radical}s = 1.96 TeV at the Tevatron with the CDF II detector. They search for associated production of {mu}{mu}* followed by the decay {mu}* {yields} {mu}{gamma}, resulting in the {mu}{mu}{gamma} final state. They compare the data to model predictions as a function of the mass of the excited muon M{sub {mu}*}, the compositeness energy scale {Lambda}, and the gauge coupling factor f. No signal above the standard model expectation is observed in the {mu}{gamma} mass spectrum. In the contact interaction model, they exclude 107 < M{sub {mu}*} < 853 GeV/c{sup 2} for {Lambda} = M{sub {mu}*}; in the gauge-mediated model, they exclude 100 < M{sub {mu}*} < 410 GeV/c{sup 2} for f/{Lambda} = 10{sup -2} GeV{sup -1}. These 95% confidence level exclusions extend previous limits and are the first hadron collider results on {mu}* production in the gauge-mediated model.
ISSN:0031-9007
1079-7114