$O(α_s^2)$ Contributions to the longitudinal fragmentation function in $e^+\,e^-$ annihilation

Details $O(α_s^2)$ Contributions to the longitudinal fragmentation function in $e^+\,e^-$ annihilation $O(α_s^2)$ Contributions to the longitudinal fragmentation function in $e^+\,e^-$ annihilation

1996-04-30

arxiv.org/abs/hep-ph/9604436v1

Phys.Lett. B386 (1996) 422-428

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, uses 'mcite', and 'amsfonts', dvi-file available at http://rulgm4.leidenuniv.nl/preprints/longfrag.dvi

Scientific paper

10.1016/0370-2693(96)00898-2

We present the order $\alpha_s^2$ contributions to the coefficient functions corresponding to the longitudinal fragmentation function $F_L(x,Q^2)$. A comparison with the leading order $\alpha_s$ result for $F_L(x,Q^2)$ shows that the corrections are large and vary from 44\% to 67\% in the region $0.01 < x < 0.9$ at $Q^2=M_Z^2$. Our calculations also reveal that the ratio of the longitudinal and total cross section $\sigma_L/\sigma_{\rm tot}$ amounts to 0.054. This number is very close to the most recent value obtained by the OPAL collaboration which obtained $0.057\pm 0.005$.

Affiliated with

Also associated with

No associations

Rating

$O(α_s^2)$ Contributions to the longitudinal fragmentation function in $e^+\,e^-$ annihilation 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 $O(α_s^2)$ Contributions to the longitudinal fragmentation function in $e^+\,e^-$ annihilation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and $O(α_s^2)$ Contributions to the longitudinal fragmentation function in $e^+\,e^-$ annihilation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-502143