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Test of QED to fourth order by study of four-lepton final states in e+e- interactions at 29 GeV with the HRS detector

  • M. Petradza
  • , C. Akerlof
  • , J. Chapman
  • , D. Errede
  • , M. T. Ken
  • , D. I. Meyer
  • , H. Neal
  • , D. Nitz
  • , R. Thun
  • , R. Tschirhart
  • , S. Abachi
  • , M. Derrick
  • , P. Kooijman
  • , L. E. Price
  • , J. Repond
  • , K. Sugano
  • , B. Cork
  • , D. Blockus
  • , B. Brabson
  • , J. M. Brom
  • C. Jung, H. Ogren, D. R. Rust, P. Baringer, B. G. Bylsma, R. Debonte, D. Koltick, E. H. Low, R. L. McIlwain, D. H. Miller, C. R. Ng, E. I. Shibata
  • University of Michigan, Ann Arbor
  • SLAC National Accelerator Laboratory
  • University of Wisconsin-Madison
  • University of Illinois at Urbana-Champaign
  • Argonne National Laboratory
  • Fermi National Accelerator Laboratory
  • National Institute for Subatomic Physics
  • Lawrence Berkeley National Laboratory
  • Indiana University Bloomington
  • CRN Division de Hautes Energies
  • Purdue University
  • University of Kansas
  • Ohio State University
  • Virginia Polytechnic Institute and State University
  • Cornell University

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Data taken with the High Resolution Spectrometer detector at the SLAC storage ring PEP were used to test QED to fourth order in the coupling constant . The experiment studied four-lepton final states produced at high Q2 in e+e- interactions at s=29 GeV. All four final-state particles were detected at large angles with respect to the beam axis. We observed 17e+e-e+e-, 24 e+e-+-, and 1 - events with pair masses greater than 1 GeV/c2 for an integrated luminosity of 291 pb-1. The complete 4 QED calculation agrees reasonably well with the data.

Original languageEnglish
Pages (from-to)2180-2186
Number of pages7
JournalPhysical Review D
Volume42
Issue number7
DOIs
StatePublished - 1990

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