Determination of the Parity of the Neutral Pion via the Four-Electron Decay
نویسندگان
چکیده
E. Abouzaid, M. Arenton, A.R. Barker, ∗ L. Bellantoni, E. Blucher, G.J. Bock, E. Cheu, R. Coleman, M.D. Corcoran, B. Cox, A.R. Erwin, C.O. Escobar, A. Glazov, A. Golossanov, R.A. Gomes, P. Gouffon, Y.B. Hsiung, D.A. Jensen, R. Kessler, K. Kotera, A. Ledovskoy, P.L. McBride, E. Monnier, † H. Nguyen, R. Niclasen, D.G. Phillips II, E.J. Ramberg, R.E. Ray, M. Ronquest, E. Santos, W. Slater, D. Smith, N. Solomey, E.C. Swallow, 6 P.A. Toale, ‡ R. Tschirhart, Y.W. Wah, J. Wang, H.B. White, J. Whitmore, M. J. Wilking, B. Winstein, R. Winston, E.T. Worcester, T. Yamanaka, E. D. Zimmerman, and R.F. Zukanovich (The KTeV Collaboration) § University of Arizona, Tucson, Arizona 85721 University of California at Los Angeles, Los Angeles, California 90095 Universidade Estadual de Campinas, Campinas, Brazil 13083-970 The Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637 University of Colorado, Boulder, Colorado 80309 Elmhurst College, Elmhurst, Illinois 60126 Fermi National Accelerator Laboratory, Batavia, Illinois 60510 Osaka University, Toyonaka, Osaka 560-0043 Japan Rice University, Houston, Texas 77005 Universidade de São Paulo, São Paulo, Brazil 05315-970 The Department of Physics and Institute of Nuclear and Particle
منابع مشابه
Determination of the parity of the neutral pion via its four-electron decay.
We present a new determination of the parity of the neutral pion via the double Dalitz decay pi0-->e+e-e+e-. Our sample, which consists of 30,511 candidate decays, was collected from KL-->pi0pi0pi0 decays in flight at the KTeV-E799 experiment at Fermi National Accelerator Laboratory. We confirm the negative pi0 parity and place a limit on scalar contributions to the pi0-->e+e-e+e- decay amplitu...
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