| Автор | Matteo Beccaria |
| Автор | Carlo Rampino |
| Дата выпуска | 2003-10-01 |
| dc.description | We discuss the convergence of level truncation in bosonic open string field theory. As a test case we consider the calculation of the quartic tachyon coupling γ<sub>4</sub>. We determine the exact contribution from states up to level L = 28 and discuss the L∞ extrapolation by means of the BST algorithm. We determine in a self-consistent way both the coupling and the exponent ω of the leading correction to γ<sub>4</sub> at finite L that we assume to be ∼ 1/L<sup>ω</sup>. The results are γ<sub>4</sub> = −1.7422006(9) and |ω−1|≲10<sup>−4</sup>. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Level truncation and the quartic tachyon coupling |
| Тип | paper |
| DOI | 10.1088/1126-6708/2003/10/047 |
| Electronic ISSN | 1029- 8479 |
| Print ISSN | 1126-6708 |
| Журнал | Journal of High Energy Physics |
| Том | 2003 |
| Первая страница | 47 |
| Последняя страница | 047 |
| Выпуск | 10 |
