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Measurements of the Decay [Formula presented]

  • A. Alavi-Harati
  • , T. Alexopoulos
  • , M. Arenton
  • , K. Arisaka
  • , R. F. Barbosa
  • , A. R. Barker
  • , M. Barrio
  • , L. Bellantoni
  • , A. Bellavance
  • , E. Blucher
  • , G. J. Bock
  • , C. Bown
  • , S. Bright
  • , E. Cheu
  • , R. Coleman
  • , M. D. Corcoran
  • , B. Cox
  • , A. R. Erwin
  • , C. O. Escobar
  • , R. Ford
  • A. Glazov, A. Golossanov, P. Gouffon, J. Graham, J. Hamm, K. Hanagaki, Y. B. Hsiung, H. Huang, V. Jejer, D. A. Jensen, R. Kessler, H. G.E. Kobrak, K. Kotera, J. LaDue, N. Lai, A. Ledovskoy, P. L. McBride, E. Monnier, K. S. Nelson, H. Nguyen, V. Prasad, X. R. Qi, B. Quinn, E. J. Ramberg, R. E. Ray, E. Santos, K. Senyo, P. Shanahan, J. Shields, W. Slater, N. Solomey, E. C. Swallow, S. A. Taegar, R. J. Tesarek, P. A. Toale, A. Tripathi, R. Tschirhart, Y. W. Wah, J. Wang, H. B. White, J. Whitmore, M. Wilking, B. Winstein, R. Winston, E. T. Worcester, T. Yamanaka, R. F. Zukanovich

Research output: Contribution to journalArticlepeer-review

Abstract

The KTeV experiment at Fermilab has isolated a total of 132 events from the rare decay [Formula presented], with an estimated background of 0.8 events. The branching ratio of this mode is determined to be [Formula presented], with a radiative cutoff of [Formula presented]. The first measurement using this mode of the parameter [Formula presented] from the D’Ambrosio-Isidori-Portolès (DIP) model of the [Formula presented] vertex yields a result of [Formula presented], consistent with values obtained from other decay modes. Because of the limited statistics, no sensitivity is found to the DIP parameter [Formula presented]. We use this decay mode to set limits on CP and lepton violation.

Original languageEnglish (US)
Pages (from-to)5
Number of pages1
JournalPhysical review letters
Volume90
Issue number14
DOIs
StatePublished - 2003
Externally publishedYes

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