Coherent Soft Particle Production in Z Decays into Three Jets

Details Coherent Soft Particle Production in Z Decays into Three Jets Coherent Soft Particle Production in Z Decays into Three Jets

2004-10-25

arxiv.org/abs/hep-ex/0410075v1

Phys.Lett.B605:37-48,2005

Physics

High Energy Physics

High Energy Physics - Experiment

14 pages, 3 figures, Accepted by Phys. Lett. B

Scientific paper

10.1016/j.physletb.2004.10.059

Low-energy particle production perpendicular to the event plane in three-jet events produced in Z decays in e+e- annihilation is measured and compared to that perpendicular to the event axis in two-jet events. The topology dependence of the hadron production ratio is found to agree with a leading-order QCD prediction. This agreement and especially the need for the presence of a destructive interference term gives evidence for the coherent nature of gluon radiation. Hadron production in three-jet events is found to be directly proportional to a single topological scale function of the inter-jet angles. The slope of the dependence of the multiplicity with respect to the topological scale was measured to be: 2.211 +/- 0.014 (stat.) +/- 0.053 (syst.) in good agreement with the expectation given by the colour-factor ratio C_A / C_F = 9/4. This result strongly supports the assumption of local parton-hadron duality, LPHD, at low hadron momentum.

Affiliated with

Also associated with

No associations

Rating

Coherent Soft Particle Production in Z Decays into Three Jets 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 Coherent Soft Particle Production in Z Decays into Three Jets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coherent Soft Particle Production in Z Decays into Three Jets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-477288