Skip to main content
Open Access Publications from the University of California

UC Irvine

UC Irvine Previously Published Works bannerUC Irvine

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

  • Author(s): Petradza, M;
  • Thun, R;
  • Abrams, G;
  • Amidei, D;
  • Baden, AR;
  • Barklow, T;
  • Boyarski, A;
  • Boyer, J;
  • Burchat, PR;
  • Burke, DL;
  • Butler, F;
  • Dorfan, JM;
  • Feldman, GJ;
  • Gidal, G;
  • Gladney, L;
  • Gold, MS;
  • Goldhaber, G;
  • Haggerty, J;
  • Jaros, JA;
  • Kadyk, JA;
  • Karlen, D;
  • Lankford, AJ;
  • Larsen, RR;
  • LeClaire, BW;
  • Levi, ME;
  • Lockyer, NS;
  • Lüth, V;
  • Nelson, ME;
  • Ong, RA;
  • Perl, ML;
  • Richter, B;
  • Riles, K;
  • Rowson, PC;
  • Schaad, T;
  • Schellman, H;
  • Schmidke, WB;
  • Sheldon, PD;
  • Trilling, GH;
  • Wood, DR;
  • Yelton, JM
  • et al.

We have tested QED to fourth order in the coupling constant in the large-Q2 region by studying four-lepton final states in e+e- interactions with the Mark II detector at the SLAC storage ring PEP (s=29 GeV). All four final-state particles were detected at large angles with respect to the beam axis. For an integrated luminosity of 205 pb-1, we observed ten e+e-e+e-, ten e+e-+-, and one events with opposite-charge pair masses greater than 1 GeV/c2. These events show good agreement with the complete 4 QED calculation. © 1990 The American Physical Society.

Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.

Main Content
For improved accessibility of PDF content, download the file to your device.
Current View