Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-05-23
Phys.Rev.D67:014017,2003
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 Pages, 2 Tables, 4 Figures. Hadronization effects to the asymmetry are considered with more details
Scientific paper
10.1103/PhysRevD.67.014017
The forward-backward asymmetry in e+ e- annihilation into a quark-antiquark pair is considered in the double-logarithmic approximation at energies much higher than the masses of the weak bosons. It is shown that after accounting to all orders for the exchange of virtual photons and W, Z -bosons one is lead to the following effect (asymmetry): quarks with positive electric charge (e.g. u, \bar{d}) tend to move in the e+ - direction whereas quarks with negative charges (e.g. d, \bar{u}) tend to move in the e- - direction. The value of the asymmetry grows with increasing energy when the produced quarks are within a cone with opening angle, in the cmf, \theta_0\sim 2M_Z/\sqrt{s} around the e+e- -beam. Outside this cone, at \theta_0 << \theta << 1, the asymmetry is inversely proportional to \theta .
Ermolaev B. I.
Greco Mario
Troyan S. I.
No associations
LandOfFree
On the forward-backward charge asymmetry in e+e- -annihilation into hadrons at high energies 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 On the forward-backward charge asymmetry in e+e- -annihilation into hadrons at high energies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the forward-backward charge asymmetry in e+e- -annihilation into hadrons at high energies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-454422