Using about 950000 hadronic events collected during 1991 and 1992 with the ALEPH detector, the ratios r(b) = alpha(s)(b)/alpha(s)(udsc) and r(uds) = alpha(s)(uds)/alpha(s)(cb) have been measured in order to test the flavour independence of the strong coupling constant alpha(s). The analysis is based on event-shape variables using the full hadronic sample, two b-quark samples enriched by lepton tagging and lifetime tagging, and a light-quark sample enriched by lifetime antitagging. The combined results are r(b) = 1.002 +/- 0.023 and r(uds) = 0.971 +/- 0.023.

D., B., D., C., I., D., D., D., P., G., C., G., et al. (1995). Test of the Flavor Independence of alpha(s). PHYSICS LETTERS. SECTION B, 355(1-2), 381-393 [10.1016/0370-2693(95)00713-U].

Test of the Flavor Independence of alpha(s)

CIOCCI, MARIA AGNESE;MARROCCHESI, PIER SIMONE;
1995-01-01

Abstract

Using about 950000 hadronic events collected during 1991 and 1992 with the ALEPH detector, the ratios r(b) = alpha(s)(b)/alpha(s)(udsc) and r(uds) = alpha(s)(uds)/alpha(s)(cb) have been measured in order to test the flavour independence of the strong coupling constant alpha(s). The analysis is based on event-shape variables using the full hadronic sample, two b-quark samples enriched by lepton tagging and lifetime tagging, and a light-quark sample enriched by lifetime antitagging. The combined results are r(b) = 1.002 +/- 0.023 and r(uds) = 0.971 +/- 0.023.
1995
D., B., D., C., I., D., D., D., P., G., C., G., et al. (1995). Test of the Flavor Independence of alpha(s). PHYSICS LETTERS. SECTION B, 355(1-2), 381-393 [10.1016/0370-2693(95)00713-U].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/37684
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