Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Study of the decays phi. --> mu. /sup +/. mu. /sup -/ and phi. --> pi. /sup +/. pi. /sup -/

Journal Article · · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:5022274
; ; ; ; ;
The relative probabilities of the decays phi..--> mu../sup +/..mu../sup -/ and phi..--> pi../sup +/..pi../sup -/ have been measured on the basis of the interference pattern in the energy dependence of the cross sections for the reactions e/sup +/e/sup -/..--> mu../sup +/..mu../sup -/ and e/sup +/e/sup -/..--> pi../sup +/..pi../sup -/ in the region of the phi meson. The probability B(phi..--> mu mu..) is in agreement with the known value B(phi..-->..ee). We have measured for the first time the probability B(phi..--> pi../sup +/..pi../sup -/) = (1.9/sup +1.0//sub -0.8/)x10/sup -4/. The interference effect observed in the ee..--> pi pi.. channel (the amplitude of the interference is Q/sub ..pi../ = 0.121 +- 0.028) is nonzero by more than four standard deviations. The phase of the interference is psi/sub ..pi../ = -40 +- 13 deg.
Research Organization:
Institute of Nuclear Physics, Siberian Division, USSR Academy of Sciences
OSTI ID:
5022274
Journal Information:
Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 35:2; ISSN SJNCA
Country of Publication:
United States
Language:
English

Similar Records

Decay phi. --> pi. /sup +/. pi. /sup -/
Journal Article · Mon Sep 01 00:00:00 EDT 1986 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States) · OSTI ID:6633364
Measurements of {psi}(2S) decays into {phi}{pi}{sup 0}, {phi}{eta}, {phi}{eta}{sup '}, {omega}{eta}, and {omega}{eta}{sup '}
Journal Article · Tue Nov 30 23:00:00 EST 2004 · Physical Review. D, Particles Fields · OSTI ID:20698092
The G-parity violating decays phi. --> pi pi. , phi. -->. eta. pi pi. , and phi. --> pi omega
Journal Article · Tue Oct 01 00:00:00 EDT 1985 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States) · OSTI ID:5972254

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
645102 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
BOSONS
COLLISIONS
DECAY
ELECTRON COLLISIONS
ELECTRON-POSITRON COLLISIONS
ELEMENTARY PARTICLES
FERMIONS
HADRONIC PARTICLE DECAY
HADRONS
INTERACTIONS
INTERFERENCE
LEPTONIC DECAY
LEPTONS
MESON RESONANCES
MESONS
MUONS
PARTICLE DECAY
PHI-1019 RESONANCES
PIONS
POSITRON COLLISIONS
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
VECTOR MESONS
WEAK INTERACTIONS
WEAK PARTICLE DECAY