From 1.4 million hadronic Z decays collected by the ALEPH detector at LEP, an enriched sample of Z --> c $$($) over bar c events is extracted by requiring the presence of a high momentum D*(+/-). The charm quark forward-backward charge asymmetry at the Z pole is measured to be A(FB)(0,c) = (8.0 +/- 2.4)% corresponding to an effective electroweak mixing angle of sin(2) theta(W)(eff) = 0.2302 +/- 0.0054.

The Forward-backward Asymmetry For Charm Quarks At the Z-pole / Focardi, E., Casper, D., Debonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Minard, M.N., Odier, P., Pietrzyk, B., Ariztizabal, F., Chmeissani, M., Crespo, J.M., Efthymiopoulos, I., Fernandez, E., Fernandezbosman, M., Gaitan, V., Garrido, L.I., Martinez, M., Orteu, S., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 352:(1995), pp. 479-486. [10.1016/0370-2693(95)00519-Q]

The Forward-backward Asymmetry For Charm Quarks At the Z-pole

FOCARDI, ETTORE;CIULLI, VITALIANO;
1995

Abstract

From 1.4 million hadronic Z decays collected by the ALEPH detector at LEP, an enriched sample of Z --> c $$($) over bar c events is extracted by requiring the presence of a high momentum D*(+/-). The charm quark forward-backward charge asymmetry at the Z pole is measured to be A(FB)(0,c) = (8.0 +/- 2.4)% corresponding to an effective electroweak mixing angle of sin(2) theta(W)(eff) = 0.2302 +/- 0.0054.
1995
352
479
486
Focardi, Ettore; Casper, D.; Debonis, I.; Decamp, D.; Ghez, P.; Goy, C.; Lees, J. P.; Minard, M. N.; Odier, P.; Pietrzyk, B.; Ariztizabal, F.; Chmeiss...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/770628
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