Top-Antitop Pair Production close to Threshold: Synopsis of recent NNLO Results

Using non-relativistic effective theories, new next-to-next-to-leading order (NNLO) QCD corrections to the total $t\bar t$ production cross section at the Linear Collider have been calculated recently. In this article the NNLO calculations of several groups are compared and the remaining uncertainti...

Descripción completa

Detalles Bibliográficos
Autores principales: Hoang, A.H., Beneke, M., Melnikov, K., Nagano, T., Ota, A., Penin, A.A., Pivovarov, A.A., Signer, A., Smirnov, Vladimir A., Sumino, Y., Teubner, T., Yakovlev, Oleg I., Yelkhovsky, A.
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1007/s1010500c0003
http://cds.cern.ch/record/424652
Descripción
Sumario:Using non-relativistic effective theories, new next-to-next-to-leading order (NNLO) QCD corrections to the total $t\bar t$ production cross section at the Linear Collider have been calculated recently. In this article the NNLO calculations of several groups are compared and the remaining uncertainties are discussed. The theoretical prospects for an accurate determination of top quark mass parameters are discussed in detail. An outlook on possible future improvements is given.

Ejemplares similares