| Автор | Johan Bijnens |
| Автор | Joaquim Prades |
| Дата выпуска | 2000-01-01 |
| dc.description | We show how the scheme- and scale-dependence of the short-distance operator product expansion with four-quark operators can be correctly accounted for in the framework of the 1/N<sub>c</sub>-expansion once the hadronization of two-quark currents has been fixed. We show formulas explicitly in the case of the B<sub>K</sub>-parameter. We then use them together with our earlier estimates of the long-distance effects. We compare Chiral Perturbation Theory at Leading- and Next-to-Leading-Order with the ENJL model results in the chiral limit. Good matching between the long- and short-distance regimes is obtained and our final value for the physical scheme independent <sub>K</sub> is 0.77±0.05±0.05. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Scheme dependence of weak matrix elements in the 1/N<sub>c</sub> expansion |
| Тип | paper |
| DOI | 10.1088/1126-6708/2000/01/002 |
| Electronic ISSN | 1029- 8479 |
| Print ISSN | 1126-6708 |
| Журнал | Journal of High Energy Physics |
| Том | 2000 |
| Первая страница | 2 |
| Последняя страница | 002 |
| Выпуск | 01 |
