Determination of the Parity of the Neutral Pion via Its Four-Electron Decay

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E. Abouzaid⁴, M. Arenton¹¹, A. R. Barker^5,*, L. Bellantoni⁷, E. Blucher⁴, G. J. Bock⁷, E. Cheu¹, R. Coleman⁷, M. D. Corcoran⁹, B. Cox¹¹, A. R. Erwin¹², C. O. Escobar³, A. Glazov⁴, A. Golossanov¹¹, R. A. Gomes³, P. Gouffon¹⁰, Y. B. Hsiung⁷, D. A. Jensen⁷, R. Kessler⁴, K. Kotera⁸, A. Ledovskoy¹¹, P. L. McBride⁷, E. Monnier^4,†, H. Nguyen⁷, R. Niclasen⁵, D. G. Phillips, II¹¹, E. J. Ramberg⁷, R. E. Ray⁷, M. Ronquest¹¹, E. Santos¹⁰, W. Slater², D. Smith¹¹, N. Solomey⁴, E. C. Swallow^4,6, P. A. Toale^5,‡,§, R. Tschirhart⁷, Y. W. Wah⁴, J. Wang¹, H. B. White⁷, J. Whitmore⁷, M. J. Wilking⁵, B. Winstein⁴, R. Winston⁴, E. T. Worcester⁴, T. Yamanaka⁸, E. D. Zimmerman^5,‡,**, and R. F. Zukanovich¹⁰ (KTeV Collaboration)
¹University of Arizona, Tucson, Arizona 85721, USA
²University of California at Los Angeles, Los Angeles, California 90095, USA
³Universidade Estadual de Campinas, Campinas 13083-970, Brazil
⁴The Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637, USA
⁵University of Colorado, Boulder, Colorado 80309, USA
⁶Elmhurst College, Elmhurst, Illinois 60126, USA
⁷Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
⁸Osaka University, Toyonaka, Osaka 560-0043, Japan
⁹Rice University, Houston, Texas 77005, USA
¹⁰Universidade de São Paulo, São Paulo 05315-970, Brazil
¹¹Department of Physics and Institute of Nuclear and Particle Physics, University of Virginia, Charlottesville, Virginia 22901, USA
¹²University of Wisconsin, Madison, Wisconsin 53706, USA

^*Deceased.

^†Permanent address: CPP Marseille/CNRS, France.

^‡To whom correspondence should be addressed.

^§Current address: Pennsylvania State University, University Park, PA 16802, USA.

toale@phys.psu.edu

^**edz@colorado.edu