A new measurement of CP violation parameter. var epsilon. prime /. var epsilon

Conference · Mon Jan 01 00:00:00 EST 1990

OSTI ID:7273944

Yamanaka, Taku

The E731 experiment at Fermilab has measured the CP violation parameter Re({var epsilon}{prime}/{var epsilon}) in K{sub L,S}{yields}{pi}{pi} decay. Four decay modes were collected simultaneously to reduce systematic errors. The result is Re({var epsilon}{prime}/{var epsilon})={minus}0.0005 {plus minus} 0.0014 (stat.) {plus minus} 0.0006 (syst.), and gives no evidence for direct CP violation. 7 refs., 3 figs., 1 tab.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 7273944
• Report Number(s): FNAL/C-90/14-E; CONF-890903-12; ON: DE90006812; TRN: 90-006668
• Resource Relation: Conference: International Europhysics conference on high-energy physics, Madrid (Spain), 7-14 Sep 1989
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
KAONS
PARTICLE DECAY
CP INVARIANCE
BRANCHING RATIO
EXPERIMENTAL DATA
MASS SPECTRA
TRANSVERSE MOMENTUM
BOSONS
DATA
DECAY
ELEMENTARY PARTICLES
HADRONS
INFORMATION
INVARIANCE PRINCIPLES
LINEAR MOMENTUM
MESONS
NUMERICAL DATA
PSEUDOSCALAR MESONS
SPECTRA
STRANGE MESONS
STRANGE PARTICLES
645100* - High Energy Physics- Particle Interactions & Properties-Experimental