Search for new physics in lepton + photon + X events with 305 pb**-1 of p anti-p collisions at s**(1/2) = 1.96-TeV Metadata
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Title
- Main Title Search for new physics in lepton + photon + X events with 305 pb**-1 of p anti-p collisions at s**(1/2) = 1.96-TeV
Creator
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Author: Abulencia, A.Creator Type: Personal
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Author: Acosta, D.Creator Type: Personal
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Author: Adelman, Jahred A.Creator Type: Personal
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Author: Affolder, T.Creator Type: Personal
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Author: Akimoto, T.Creator Type: Personal
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Author: Albrow, M.G.Creator Type: Personal
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Author: Ambrose, D.Creator Type: Personal
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Author: Amerio, S.Creator Type: Personal
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Author: Amidei, D.Creator Type: Personal
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Author: Anastassov, A.Creator Type: Personal
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Author: Anikeev, K.Creator Type: Personal
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Author: /Taiwan, Inst. Phys. /Argonne /Barcelona, IFAE /Baylor U. /INFN, Bologna /Bologna U. /Brandeis U. /UC, Davis /UCLA /UC, San Diego /UC, Santa BarbaraCreator Type: Personal
Contributor
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Sponsor: United States. Department of Energy.Contributor Type: Organization
Publisher
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Name: Fermi National Accelerator LaboratoryPlace of Publication: Batavia, IllinoisAdditional Info: Fermi National Accelerator Laboratory (FNAL), Batavia, IL
Date
- Creation: 2006-05-01
Language
- English
Description
- Content Description: The authors present results of a search for anomalous production of events containing a charged lepton ({ell}, either e or {mu}) and a photon ({gamma}), both with high transverse momentum, accompanied by additional signatures, X, including missing transverse energy (E{sub T}) and additional leptons and photons. We use the same kinematic selection criteria as in a previous CDF search, but with a substantially larger data set, 305 pb{sup -1}, a p{bar p} collision energy of 1.96 TeV, and the upgraded CDF II detector. We find 42 {ell}{gamma}E{sub T} events versus a standard model expectation of 37.3 {+-} 5.4 events. The level of excess observed in Run I, 16 events with an expectation of 7.6 {+-} 0.7 events (corresponding to a 2.7{sigma} effect), is not supported by the new data. In the signature of {ell}{ell}{gamma} + X we observe 31 events versus an expectation of 23.0 {+-} 2.7 events. In this sample we find no events with an extra photon or E{sub T} and so find no events like the one ee{gamma}{gamma}E{sub T} event observed in Run I.
- Physical Description: 8 pages
Subject
- Keyword: Photons
- STI Subject Categories: 43 Particle Accelerators
- Keyword: Transverse Momentum Experiment-Hep
- Keyword: Production
- Keyword: Physics
- STI Subject Categories: 72 Physics Of Elementary Particles And Fields
- Keyword: Fermilab Collider Detector
- Keyword: Leptons
- Keyword: Standard Model
- Keyword: Transverse Energy
- Keyword: Experiment-Hep
Source
- Journal Name: Phys.Rev.Lett.97:031801,2006; Journal Volume: 97
Collection
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Name: Office of Scientific & Technical Information Technical ReportsCode: OSTI
Institution
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Name: UNT Libraries Government Documents DepartmentCode: UNTGD
Resource Type
- Article
Format
- Text
Identifier
- Report No.: FERMILAB-PUB-06-127-E
- Grant Number: AC02-07CH11359
- DOI: 10.1103/PhysRevLett.97.031801
- Office of Scientific & Technical Information Report Number: 897288
- Archival Resource Key: ark:/67531/metadc888115