Validity of chiral perturbation theory for K0-K0 mixing
(1984) In Physical Review Letters 53(25). p.2367-2370- Abstract
Chiral perturbation theory relates the |S|=2 matrix element K0|(sd)V-A×(sd)V-A|K0 to the |S|=1 matrix element +0|(sd)V-A(uu)V-A+(su)V- A×(ud)V-A-(sd)V-A(dd)V-A|K+. The latter matrix element is measured in K++0 decay and the former matrix element is relevant for the predictions that the standard model makes for CP nonconservation in K0-K0 mixing. In this paper the corrections of order mK4 lnmK2 to lowest-order chiral perturbation theory (i.e., order mK2) for these matrix elements are computed. The correction is large for the |S|=2 matrix element indicating a breakdown of chiral perturbation theory.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3338925d-781c-4031-af48-6c1c9d6a821b
- author
- Bijnens, Johan LU ; Sonoda, Hidenori and Wise, Mark B.
- publishing date
- 1984-01-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 53
- issue
- 25
- pages
- 4 pages
- publisher
- American Physical Society
- external identifiers
-
- scopus:0010783825
- ISSN
- 0031-9007
- DOI
- 10.1103/PhysRevLett.53.2367
- language
- English
- LU publication?
- no
- id
- 3338925d-781c-4031-af48-6c1c9d6a821b
- date added to LUP
- 2019-05-03 09:20:15
- date last changed
- 2021-06-20 05:28:41
@article{3338925d-781c-4031-af48-6c1c9d6a821b, abstract = {{<p>Chiral perturbation theory relates the |S|=2 matrix element K0|(sd)V-A×(sd)V-A|K0 to the |S|=1 matrix element +0|(sd)V-A(uu)V-A+(su)V- A×(ud)V-A-(sd)V-A(dd)V-A|K+. The latter matrix element is measured in K++0 decay and the former matrix element is relevant for the predictions that the standard model makes for CP nonconservation in K0-K0 mixing. In this paper the corrections of order mK4 lnmK2 to lowest-order chiral perturbation theory (i.e., order mK2) for these matrix elements are computed. The correction is large for the |S|=2 matrix element indicating a breakdown of chiral perturbation theory.</p>}}, author = {{Bijnens, Johan and Sonoda, Hidenori and Wise, Mark B.}}, issn = {{0031-9007}}, language = {{eng}}, month = {{01}}, number = {{25}}, pages = {{2367--2370}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Validity of chiral perturbation theory for K0-K0 mixing}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.53.2367}}, doi = {{10.1103/PhysRevLett.53.2367}}, volume = {{53}}, year = {{1984}}, }