Phys. Rev. D 45, 3961–3964 (1992)

Precision measurement of the branching ratio K⁺→π⁺π⁰/K⁺→μ⁺ν_μ

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T. Usher^*, M. Fero^*, M. Gee, N. A. Graf^†, M. Mandelkern, D. Schultz^*, and J. Schultz
Department of Physics, University of California, Irvine, California 92717

Received 28 August 1991; published in the issue dated 1 June 1992

A measurement of the branching ratio K⁺→π⁺π⁰/K⁺→μ⁺ν_μ was made using stopped kaons from pp̅ annihilations at rest and a magnetic spectrometer to measure the momenta of the charged decay product to the 1% to 1.5% level. The determination is based on 45 500 events passing final data cuts. The resulting ratio is 0.3329±0.0047 (statistical) ±0.0010 (systematic).

URL:

http://link.aps.org/doi/10.1103/PhysRevD.45.3961

DOI:

10.1103/PhysRevD.45.3961

PACS:

13.25.+m, 13.20.Eb, 14.40.Aq

^*Present address: Stanford Linear Accelerator Center, Stanford University, Stanford, CA 94309.

^†Present address: Fermi National Laboratory, Batavia, IL 60510.

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Phys. Rev. D 45, 3961–3964 (1992)

Precision measurement of the branching ratio K+→π+π0/K+→μ+νμ

Precision measurement of the branching ratio K⁺→π⁺π⁰/K⁺→μ⁺ν_μ