Bose-Einstein correlations of pairs of identical charged pions produced in hadronic Z decays are analyzed in terms of various parametrizations. A good description is achieved using a Levy stable distribution in conjunction with a model where a particle's momentum is correlated with its space-time point of production, the tau-model. Using this description and the measured rapidity and transverse momentum distributions, the space-time evolution of particle emission in two-jet events is reconstructed. However, the elongation of the particle emission region previously observed is not accommodated in the tau-model, and this is investigated using an ad hoc modification.

Test of the tau-model of Bose-Einstein correlations and reconstruction of the source function in hadronic Z-boson decay at LEP / P. Achard, O. Adriani, M. Aguilar-Benitez, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, M. G. Alviggi, H. Anderhub, V. P. Andreev, F. Anselmo, A. Arefiev, T. Azemoon, T. Aziz, P. Bagnaia, A. Bajo, G. Baksay, L. Baksay, S. V. Baldew, S. Banerjee, et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - STAMPA. - 71:(2011), pp. 1-25. [10.1140/epjc/s10052-011-1648-8]

Test of the tau-model of Bose-Einstein correlations and reconstruction of the source function in hadronic Z-boson decay at LEP

ADRIANI, OSCAR;CARTACCI, ANNA MARIA;LANDI, GREGORIO;SPILLANTINI, PIERO;
2011

Abstract

Bose-Einstein correlations of pairs of identical charged pions produced in hadronic Z decays are analyzed in terms of various parametrizations. A good description is achieved using a Levy stable distribution in conjunction with a model where a particle's momentum is correlated with its space-time point of production, the tau-model. Using this description and the measured rapidity and transverse momentum distributions, the space-time evolution of particle emission in two-jet events is reconstructed. However, the elongation of the particle emission region previously observed is not accommodated in the tau-model, and this is investigated using an ad hoc modification.
2011
71
1
25
P. Achard;O. Adriani;M. Aguilar-Benitez;J. Alcaraz;G. Alemanni;J. Allaby;A. Aloisio;M. G. Alviggi;H. Anderhub;V. P. Andreev;F. Anselmo;A. ...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/627650
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