Dominance of long distance effects in the K sub L -K sub S mass difference
Journal Article
·
· Modern Physics Letters A; (USA)
- Hiroshima Univ., Takehara (Japan). Research Inst. for Theoretical Physics
- Maryland Univ., College Park, MD (USA). Dept. of Physics
It is argued that the asymptotic behavior of the matrix elements of H{sub w} involving on-mass-shell ground-state mesons with infinite momenta, which were instrumental in explaining the {vert bar}{Delta}{vert bar} = 1/2 rule in the K {r arrow} {pi}{pi} decays, actually implies (K{sup 0}{vert bar}O{sub {Delta}S = 2}{vert bar}{bar K}{sup 0}) = 0. The long distance effects (contributions of PS and vector meson poles and {pi}{pi} intermediate states) may reproduce the observed K{sub L} {minus} K{sub S} mass difference, consistent with the {vert bar}{Delta}I{vert bar} = 1/2 rule. Its estimate is however sensitive to the {eta}-{eta}{prime} mixing.
- OSTI ID:
- 5827271
- Journal Information:
- Modern Physics Letters A; (USA), Vol. 5:19; ISSN 0217-7323
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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74 ATOMIC AND MOLECULAR PHYSICS
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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
MATRIX ELEMENTS
ASYMPTOTIC SOLUTIONS
MESONS
GROUND STATES
CONFIGURATION MIXING
KAONS
MASS
PARTICLE DECAY
PIONS
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ELEMENTARY PARTICLES
ENERGY LEVELS
HADRONS
INTERACTIONS
PSEUDOSCALAR MESONS
STRANGE MESONS
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657002 - Theoretical & Mathematical Physics- Classical & Quantum Mechanics
640302 - Atomic
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