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

  • Author: Abulencia, A.
    Creator Type: Personal
  • Author: Acosta, D.
    Creator Type: Personal
  • Author: Adelman, Jahred A.
    Creator Type: Personal
  • Author: Affolder, T.
    Creator Type: Personal
  • Author: Akimoto, T.
    Creator Type: Personal
  • Author: Albrow, M.G.
    Creator Type: Personal
  • Author: Ambrose, D.
    Creator Type: Personal
  • Author: Amerio, S.
    Creator Type: Personal
  • Author: Amidei, D.
    Creator Type: Personal
  • Author: Anastassov, A.
    Creator Type: Personal
  • Author: Anikeev, K.
    Creator Type: Personal
  • Author: /Taiwan, Inst. Phys. /Argonne /Barcelona, IFAE /Baylor U. /INFN, Bologna /Bologna U. /Brandeis U. /UC, Davis /UCLA /UC, San Diego /UC, Santa Barbara
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: Fermi National Accelerator Laboratory
    Place of Publication: Batavia, Illinois
    Additional 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

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: 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
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