Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-03-02
Physics
High Energy Physics
High Energy Physics - Phenomenology
9 pages, 4 figures
Scientific paper
The vacuum polarization of a quark, when considered in terms of the external momentum q^2, is a function of the Stieltjes type. Consequently, the mathematical theory of Pade Approximants assures that the full function, at any finite value of q^2 away from the physical cut, can be reconstructed from its low-energy power expansion around q^2=0. We illustrate this point by applying this theory to the vacuum polarization of a heavy quark and obtain the value of the constant K^(2) governing the threshold expansion at order O(alpha_s^2).
Masjuan Pere
Peris Santi
No associations
LandOfFree
Pade Theory applied to the vacuum polarization of a heavy quark does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Pade Theory applied to the vacuum polarization of a heavy quark, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pade Theory applied to the vacuum polarization of a heavy quark will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-78174