Precision measurement of the branching ratio K sup + r arrow. pi. sup +. pi. sup 0 / K sup + r arrow. mu. sup +. nu. sub. mu

Journal Article · Mon Jun 01 04:00:00 EDT 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.45.3961· OSTI ID:7287021

Usher, T; Fero, M; Gee, M; Graf, N A; Mandelkern, M; Schultz, D; Schultz, J ^[1]

---

1. Department of Physics, University of California, Irvine, California 92717 (United States)

A measurement of the branching ratio {ital K}{sup +}{r arrow}{pi}{sup +}{pi}{sup 0}/{ital K}{sup +}{r arrow}{mu}{sup +}{nu}{sub {mu}} was made using stopped kaons from {ital p{bar p}} 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{plus minus}0.0047 (statistical) {plus minus}0.0010 (systematic).

• DOE Contract Number: AT03-76ER71019
• OSTI ID: 7287021
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 45:11; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662350* -- Decays of Mesons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALGEBRAIC CURRENTS
ANNIHILATION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
AXIAL-VECTOR CURRENTS
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
CURRENTS
DECAY
DEUTERIUM
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
HYDROGEN
HYDROGEN ISOTOPES
INTERACTIONS
ISOTOPES
KAONS
KAONS PLUS
LEPTONS
LIGHT NUCLEI
MAGNETIC SPECTROMETERS
MASSLESS PARTICLES
MATRIX ELEMENTS
MATTER
MEASURING INSTRUMENTS
MESONS
MULTIWIRE PROPORTIONAL CHAMBERS
MUON NEUTRINOS
MUONS
MUONS PLUS
NEUTRINOS
NONMETALS
NUCLEI
NUCLEON-ANTINUCLEON INTERACTIONS
ODD-ODD NUCLEI
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PIONS
PIONS NEUTRAL
PIONS PLUS
PROPORTIONAL COUNTERS
PROTON-ANTIPROTON INTERACTIONS
PSEUDOSCALAR MESONS
RADIATION DETECTORS
SPECTROMETERS
STABLE ISOTOPES
STRANGE MESONS
STRANGE PARTICLES