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00 and KL0 in the chiral quark model

Bijnens, J. LU orcid ; Dawson, S. and Valencia, G. (1991) In Physical Review D 44(11). p.3555-3561
Abstract

We consider the process 00 within the quark model. We find small corrections to the lowest-order result obtained from chiral loops. These corrections are very similar to those found in vector-meson-dominated models, and too small to be tested with the present data. We use this result, together with a simple pole model, to find the amplitude for KL0 and use this to estimate the CP-conserving part of KL0e+e-. For this last process we find a branching ratio 2.3×10-13, significantly smaller than the CP-violating contribution.

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author
; and
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review D
volume
44
issue
11
pages
7 pages
publisher
American Physical Society
external identifiers
  • scopus:0001576734
ISSN
0556-2821
DOI
10.1103/PhysRevD.44.3555
language
English
LU publication?
no
id
d051249c-473b-4f79-a594-a596fd41f099
date added to LUP
2019-05-03 09:38:39
date last changed
2025-10-14 09:07:28
@article{d051249c-473b-4f79-a594-a596fd41f099,
  abstract     = {{<p>We consider the process 00 within the quark model. We find small corrections to the lowest-order result obtained from chiral loops. These corrections are very similar to those found in vector-meson-dominated models, and too small to be tested with the present data. We use this result, together with a simple pole model, to find the amplitude for KL0 and use this to estimate the CP-conserving part of KL0e+e-. For this last process we find a branching ratio 2.3×10-13, significantly smaller than the CP-violating contribution.</p>}},
  author       = {{Bijnens, J. and Dawson, S. and Valencia, G.}},
  issn         = {{0556-2821}},
  language     = {{eng}},
  month        = {{12}},
  number       = {{11}},
  pages        = {{3555--3561}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review D}},
  title        = {{00 and KL0 in the chiral quark model}},
  url          = {{http://dx.doi.org/10.1103/PhysRevD.44.3555}},
  doi          = {{10.1103/PhysRevD.44.3555}},
  volume       = {{44}},
  year         = {{1991}},
}