Bose-Einstein correlations in W-pair decays are studied using data collected by the ALEPH detector at LEP at e(+)e(-) centre-of-mass energies from 183 to 209 GeV. The analysis is based on the comparison of WW --> q (q) over barq (q) over bar events to "mixed" events constructed with the hadronic part of WW --> q (q) over bar lv events. The data are in agreement with the hypothesis that Bose-Einstein correlations are present only for pions from the same W decay. The JETSET model with Bose-Einstein correlations between pions from different W bosons is disfavoured. (C) 2004 Elsevier B.V. All rights reserved.

Bose-Einstein correlations in W-pair decays with an event-mixing technique / Schael, S., Barate, R., Bruneliere, R., De Bonis, I., Decamp, D., Goy, C., Jezequel, S., Lees, J.p., Martin, F., Merle, E., Minard, M.n., Pietrzyk, B., Trocme, B., Bravo, S., Casado, M.p., Chmeissani, A., Crespo, J.m., Fernandez, E., Fernandez Bosman, A., Garrido, L., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 606:3-4(2005), pp. 265-275. [10.1016/j.physletb.2004.12.018]

Bose-Einstein correlations in W-pair decays with an event-mixing technique

CREANZA, Donato Maria;DE FILIPPIS, Nicola;IASELLI, Giuseppe;MAGGI, Giorgio Pietro;
2005

Abstract

Bose-Einstein correlations in W-pair decays are studied using data collected by the ALEPH detector at LEP at e(+)e(-) centre-of-mass energies from 183 to 209 GeV. The analysis is based on the comparison of WW --> q (q) over barq (q) over bar events to "mixed" events constructed with the hadronic part of WW --> q (q) over bar lv events. The data are in agreement with the hypothesis that Bose-Einstein correlations are present only for pions from the same W decay. The JETSET model with Bose-Einstein correlations between pions from different W bosons is disfavoured. (C) 2004 Elsevier B.V. All rights reserved.
2005
Bose-Einstein correlations in W-pair decays with an event-mixing technique / Schael, S., Barate, R., Bruneliere, R., De Bonis, I., Decamp, D., Goy, C., Jezequel, S., Lees, J.p., Martin, F., Merle, E., Minard, M.n., Pietrzyk, B., Trocme, B., Bravo, S., Casado, M.p., Chmeissani, A., Crespo, J.m., Fernandez, E., Fernandez Bosman, A., Garrido, L., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 606:3-4(2005), pp. 265-275. [10.1016/j.physletb.2004.12.018]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/3677
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