The KL-KS mass difference
(1991) In Physics Letters B 257(1-2). p.191-195- Abstract
The matching of the log and short distance contributions to the KL-KS mass difference is investigated in the large Nc limit (Nc being the number of colours). In this limit a physically well defined separation between the two regimes exists. This allows for an investigation of the matching between the two contributions. We obtain that 0.8±0.1 of the observed mass difference is due to the light and charm quarks contribution. An estimate of the top and top-charm contributions is also given.
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https://lup.lub.lu.se/record/b62726c4-e772-4a3b-9227-43dcbea35303
- author
- Bijnens, Johan LU ; Gérard, Jean Marc and Klein, Gerhard
- publishing date
- 1991-03-21
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physics Letters B
- volume
- 257
- issue
- 1-2
- pages
- 5 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:0001629346
- ISSN
- 0370-2693
- DOI
- 10.1016/0370-2693(91)90880-Y
- language
- English
- LU publication?
- no
- id
- b62726c4-e772-4a3b-9227-43dcbea35303
- date added to LUP
- 2019-05-03 09:37:44
- date last changed
- 2021-01-03 07:18:29
@article{b62726c4-e772-4a3b-9227-43dcbea35303, abstract = {{<p>The matching of the log and short distance contributions to the K<sub>L</sub>-K<sub>S</sub> mass difference is investigated in the large N<sub>c</sub> limit (N<sub>c</sub> being the number of colours). In this limit a physically well defined separation between the two regimes exists. This allows for an investigation of the matching between the two contributions. We obtain that 0.8±0.1 of the observed mass difference is due to the light and charm quarks contribution. An estimate of the top and top-charm contributions is also given.</p>}}, author = {{Bijnens, Johan and Gérard, Jean Marc and Klein, Gerhard}}, issn = {{0370-2693}}, language = {{eng}}, month = {{03}}, number = {{1-2}}, pages = {{191--195}}, publisher = {{Elsevier}}, series = {{Physics Letters B}}, title = {{The K<sub>L</sub>-K<sub>S</sub> mass difference}}, url = {{http://dx.doi.org/10.1016/0370-2693(91)90880-Y}}, doi = {{10.1016/0370-2693(91)90880-Y}}, volume = {{257}}, year = {{1991}}, }