Elsevier

Physics Letters B

Volume 122, Issues 3–4, 10 March 1983, Pages 317-321
Physics Letters B

Ruling out exotic models of b quark decay

https://doi.org/10.1016/0370-2693(83)90711-6Get rights and content

Abstract

We consider three broad classes of nonstandard models for b quark decay: (1) b → ℓℓq with charged or neutral leptons of arbitrary flavor; (2) b → ℓqq; and (3) b → qa where a is a Higgs boson or hyperpion. For these classes of models we have calculated the charged energy fraction and the inclusive yields of electrons, muons, protons, and lambdas. We demonstrate that these model predictions are inconsistent with CLEO measurements at the γ (4S).

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1

Present address: Xerox Corporation, Rochester, NY, USA.

2

Permanent address: Département de Physique des Particules Elémentaire, Centre d'Etudes Nucléaires de Saclay, Gif sur Yvette, France.

3

Present address: AIRCO Superconductors, Cateret, NJ, USA.

4

Present address: Bell Laboratories, Holmdel, NJ, USA.

5

Permanent address: Massachusetts Institute of Technology, Cambridge, MA, USA.

6

Present address: CERN, Genève, Switzerland.

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