Measurement of the phase and magnitude of eta/sub 00/

Journal Article · Mon Oct 22 04:00:00 EDT 1979 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.43.1209· OSTI ID:5727925

Christenson, J H; Goldman, J H; Hummel, E; Roth, S D; Sanford, T W.L.; Sculli, J

This Letter presents measurements of the phase and magnitude of the CP-nonconservation parameter eta/sub 00/ resulting from a study of the proper-time distribution of K/sup 0/ ..-->.. ..pi../sup 0/..pi../sup 0/ decays in a short-lived neutral beam. We find phi/sub 00/=55.7/sup 0/ +- 5.8/sup 0/ and vertical-bareta/sub 00/vertical-bar= (2.33 +- .18) x 10/sup -3/. A direct comparison to eta/sub +/- measured in the same experiment gives phi/sub 00/-phi/sub +/-=12.6/sup 0/ +- 6.2/sup 0/ and vertical-bareta/sub 00//eta/sub +/-vertical-bar =1.00 +- 0.09.

• Research Organization: New York University, New York, New York 10003
• OSTI ID: 5727925
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 43:17; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
645302 -- High Energy Physics-- Particle Invariance Principles & Symmetries-- Applications to Electromagnetic & Weak Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEAMS
BOSONS
CP INVARIANCE
DECAY
ELEMENTARY PARTICLES
HADRONS
INVARIANCE PRINCIPLES
KAON BEAMS
KAONS
KAONS NEUTRAL
KAONS NEUTRAL SHORT-LIVED
MASS SPECTRA
MESON BEAMS
MESONS
PARTICLE BEAMS
PARTICLE DECAY
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
SPECTRA
STRANGE PARTICLES
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY