Direct CP violation in K r arrow 3. pi. decay: Addendum on CP -violating effects in charged- K decay

Journal Article · Thu Aug 01 04:00:00 EDT 1991 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.44.919· OSTI ID:5451128

Cheng, H ^[1]

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1. Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China (CN)

Contrary to a recent claim that {ital CP} asymmetry in the slope parameter of {ital K}{sup {plus minus}}{r arrow}{pi}{sup {plus minus}}{pi}{sup +}{pi}{sup {minus}} is as large as of order 10{sup {minus}3}, our calculation shows that, within the framework of the 1/{ital N}{sub {ital c}} approach, its magnitude is not likely to exceed the level of 10{sup {minus}5} even after including the effects of {ital Z}{sup 0} penguin diagrams, isospin breaking, and higher-order weak chiral Lagrangians. Our result suggests that it is a formidable task to observe direct {ital CP} violation in charged {ital K}{r arrow}3{pi} decay.

• OSTI ID: 5451128
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 44:3; ISSN 0556-2821; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
645300 -- High Energy Physics-- Particle Invariance Principles & Symmetries
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BOSONS
COUPLING CONSTANTS
CP INVARIANCE
CURRENT ALGEBRA
DALITZ PLOT
DECAY
DIAGRAMS
ELEMENTARY PARTICLES
HADRONIC PARTICLE DECAY
HADRONS
INVARIANCE PRINCIPLES
ISOSPIN
KAONS
KAONS MINUS
KAONS PLUS
MESONS
PARTICLE DECAY
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PERTURBATION THEORY
PIONS
PSEUDOSCALAR MESONS
SCATTERPLOTS
STRANGE MESONS
STRANGE PARTICLES
WEAK PARTICLE DECAY