Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2000-02-24
Eur.Phys.J.C16:423-433,2000
Physics
High Energy Physics
High Energy Physics - Experiment
18 pages, 7 figures, submitted to Eur. Phys. J. C
Scientific paper
10.1007/s100520000407
Bose-Einstein correlations in pairs of identical charged pions produced in a sample of 4.3 million Z0 hadronic decays are studied as a function of the three components of the momentum difference, transverse ("out" and "side") and longitudinal with respect to the thrust direction of the event. A significant difference between the transverse, r_t_side, and longitudinal, r_l, dimensions is observed, indicating that the emitting source of identical pions, as observed in the Longitudinally CoMoving System, has an elongated shape. This is observed with a variety of selection techniques. Specifically, the values of the parameters obtained by fitting the extended Goldhaber parametrisation to the correlation function C'= C^{DATA}}/C^{MC} for two-jet events, selected with the Durham algorithm and resolution parameter ycut=0.04, are r_t_out=(0.647+-0.011(stat})+0.022-0.124(syst)) fm, r_t_side=(0.809+-0.009(stat)+0.019-0.032}(syst)) fm, r_l=(0.989+-0.011(stat)+0.030-0.015(syst})) fm and r_l/r_t_side=1.222+-0.027(stat})+0.075-0.012(syst). The results are discussed in the context of a recent model of Bose-Einstein correlations based on string fragmentation.
Abbiendi Giovanni
collaboration The OPAL
No associations
LandOfFree
Transverse and Longitudinal Bose Einstein Correlations in hadronic Z0 Decays 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 Transverse and Longitudinal Bose Einstein Correlations in hadronic Z0 Decays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transverse and Longitudinal Bose Einstein Correlations in hadronic Z0 Decays will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-358496