Implications of a heavy top quark and a fourth generation on the decays B→Kl+l, Kνν¯

Wei-Shu Hou, R. S. Willey, and A. Soni
Phys. Rev. Lett. 58, 1608 – Published 20 April 1987; Erratum Phys. Rev. Lett. 60, 2337 (1988)
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Abstract

We point out the importance of the Z and box diagram to the decays B→Kl+l, Kνν¯. The rate for B→Kl+l grows rapidly for internal quark masses >100 GeV. With three generations and 25≲mt≲200 GeV the branching ratio ranges roughly from 106 to 105. With four generations, this rate could go up another order of magnitude. The mode B→Kνν¯ typically has a higher branching ratio, but is harder to detect experimentally. The rare B decays combined with information from K→πνν¯ studies may provide a test of the symmetry-breaking mechanism of the standard model and/or evidence for a fourth generation.

  • Received 12 November 1986

DOI:https://doi.org/10.1103/PhysRevLett.58.1608

©1987 American Physical Society

Erratum

Implications of a Heavy Top Quark and a Fourth Generation on the Decays BKl+l, Kvv¯

Wei-Shu Hou, R. S. Willey, and A. Soni
Phys. Rev. Lett. 60, 2337 (1988)

Authors & Affiliations

Wei-Shu Hou and R. S. Willey

  • Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260

A. Soni

  • Department of Physics, University of California, Los Angeles, Los Angeles, California 90024

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Vol. 58, Iss. 16 — 20 April 1987

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