Five-loop vacuum polarization in pQCD: O(m_q^2α_s^4 n_f^2) contribution
| dc.creator | Baikov, P. A. | |
| dc.creator | Chetyrkin, K. G. | |
| dc.creator | Kühn, J. H. | |
| dc.date | 2002-12-19 | |
| dc.date | 2003-03-11 | |
| dc.date.accessioned | 2026-07-07T12:02:58Z | |
| dc.date.available | 2026-07-07T12:02:58Z | |
| dc.description | We present the analytical calculation of the contribution of order m_q^2 α_s^4 n_f^2 to the absorptive part of the vacuum polarization function of vector currents. This term constitutes an important gauge-invariant part of the full O(m_q^2 alpha_s^4) correction to the total cross-section of e^+ e^- annihilation into hadrons. The results are compared to predictions following from various optimization schemes. | |
| dc.description | The complete paper is also available via the www at http://www-ttp.physik.uni-karlsruhe.de/Preprints/ | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0212303 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0212303 | |
| dc.identifier | Phys.Lett.B559:245-251,2003 | |
| dc.identifier | doi:10.1016/S0370-2693(03)00186-2 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207623 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Five-loop vacuum polarization in pQCD: O(m_q^2α_s^4 n_f^2) contribution | |
| dc.type | text |