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| — | preprints:2002:ttp02-45 [2016/03/17 11:03] (current) – created - external edit 127.0.0.1 |
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| | ====== TTP02-45 Five-loop vacuum polarization in pQCD: O(m_q^2\alpha_s^4 n_f^2) contribution ====== |
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| | <hidden TTP02-45 Five-loop vacuum polarization in pQCD: O(m_q^2\alpha_s^4 n_f^2) contribution > We present the analytical calculation of the contribution of order |
| | m_q^2 \alpha_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. |
| | </hidden> |
| | |**P.A. Baikov, K.G. Chetyrkin and J.H. K\"uhn** | |
| | |** Phys.Lett.B 559 245-251 2003 ** | |
| | | {{preprints:2002:ttp02-45.pdf|PDF}} {{preprints:2002:ttp02-45.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/0212303|arXiv]] | |
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