The Anatomy of eps'/eps Beyond Leading Logarithms with Improved Hadronic Matrix Elements
| dc.creator | Jamin, Matthias | |
| dc.date | 1993-06-11 | |
| dc.date.accessioned | 2026-07-07T03:56:07Z | |
| dc.date.available | 2026-07-07T03:56:07Z | |
| dc.description | Results of a recent calculation of the effective $\dS$ Hamiltonian at the next-to-leading order will be presented\footnote{Work done in collaboration with A. J. Buras and M. E. Lautenbacher.}. These, together with an improved treatment of hadronic matrix elements, are used to evaluate the measure for direct CP-violation, $\epe$, at the next-to-leading order. Taking $\mt=130\,GeV$, $\Lms=300\,MeV$ and calculating $\langle Q_6 \rangle$ and $\langle Q_8 \rangle$ in the $1/N$ approach, we find in the NDR scheme $\epe = (6.7 \pm 2.6)\times 10^{-4}$ in agreement with the experimental findings of E731. We point out however that the increase of $\langle Q_6 \rangle$ by only a factor of two gives $\epe = (20.0 \pm 6.5)\times 10^{-4}$ in agreement with the result of NA31. The dependencies of $\epe$ on $\Lms$, $\mt$, and some $B$-parameters, parameterizing hadronic matrix elements, are briefly discussed. | |
| dc.description | Invited talk given at the XXVIII Rencontres de Moriond, Les Arcs, 1993, 5 pages, uuencoded tar-file including 1 figure | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9306261 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9306261 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/44829 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | The Anatomy of eps'/eps Beyond Leading Logarithms with Improved Hadronic Matrix Elements | |
| dc.type | text |