Search for the decay KL → π0νν + ̄

J. Adams, A. Alavi-Harati, I. F. Albuquerque, T. Alexopoulos, M. Arenton, K. Arisaka, S. Averitte, A. R. Barker, L. Bellantoni, A. Bellavance, J. Belz, R. Ben-David, D. R. Bergman, E. Blucher, G. J. Bock, C. Bown, S. Bright, E. Cheu, S. Childress, R. ColemanM. D. Corcoran, G. Corti, B. Cox, M. B. Crisler, A. R. Erwin, S. Field, R. Ford, G. Graham, J. Graham, K. Hagan, E. Halkiadakis, K. Hanagaki, M. Hazumi, S. Hidaka, Y. B. Hsiung, V. Jejer, J. Jennings, D. A. Jensen, P. T. Johnson, R. Kessler, H. G.E. Kobrak, J. LaDue, A. Lath, A. Ledovskoy, A. P. McManus, P. Mikelsons, S. Mochida, E. Monnier, T. Nakaya, U. Nauenberg, K. S. Nelson, H. Nguyen, V. O'Dell, M. Pang, R. Pordes, V. Prasad, C. Qiao, B. Quinn, E. J. Ramberg, R. E. Ray, A. Ronzhin, A. Roodman, M. Sadamoto, S. Schnetzer, K. Senyo, P. Shanahan, P. S. Shawhan, W. Slater, N. Solomey, S. V. Somalwar, R. L. Stone, I. Suzuki, E. G. Swallow, R. A. Swanson, S. A. Taegar, R. J. Tesarek, G. B. Thomson, P. A. Toale, A. Tripathi, R. Tschirhart, Y. W. Wah, H. B. White, J. Whitmore, B. Winstein, R. Winston, J. Y. Wu, T. Yamanaka, E. D. Zimmerman

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

We report on a search for the rare decay KL → π0νν + ̄ in the KTeV experiment at Fermilab. We searched for two-photon events whose kinematics were consistent with an isolated π0 coming from the decay KL → π0νν + ̄. One candi date event was observed, which was consistent with the expected level of background. An upper limit on the branching ratio was determined to be B(KL → π0νν + ̄) < 1.6 × 10-6 at the 90% confidence level.

Original languageEnglish (US)
Pages (from-to)240-245
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume447
Issue number3-4
DOIs
StatePublished - Jan 1 1999

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Adams, J., Alavi-Harati, A., Albuquerque, I. F., Alexopoulos, T., Arenton, M., Arisaka, K., Averitte, S., Barker, A. R., Bellantoni, L., Bellavance, A., Belz, J., Ben-David, R., Bergman, D. R., Blucher, E., Bock, G. J., Bown, C., Bright, S., Cheu, E., Childress, S., ... Zimmerman, E. D. (1999). Search for the decay KL → π0νν + ̄. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 447(3-4), 240-245. https://doi.org/10.1016/S0370-2693(98)01593-7