An improved measurement of the average b hadron lifetime is performed using a sample of 1.5 million hadronic Z decays, collected during the 1991-1993 runs of ALEPH, with the silicon vertex detector fully operational, This uses the three-dimensional impact parameter distribution of lepton tracks coming from semileptonic b decays and yields an average b hadron lifetime of 1.533 +/- 0.013 +/- 0.022 ps.

A precise measurement of the average b hadron lifetime / Buskulic, D., Debonis, I., Casper, D., Decamp, D., Ghez, P., Goy, C., Lees, J.p., Lucotte, A., Minard, M.n., Odier, P., Pietrzyk, B., Ariztizabal, F., Chmeissani, M., Crespo, J.m., Efthymiopoulos, I., Fernandez, E., Fernandezbosman, M., Gaitan, V., Orteu, S., Pacheco, A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 369:2(1996), pp. 151-162. [10.1016/0370-2693(95)01586-8]

A precise measurement of the average b hadron lifetime

CREANZA, Donato Maria;IASELLI, Giuseppe;MAGGI, Giorgio Pietro;
1996

Abstract

An improved measurement of the average b hadron lifetime is performed using a sample of 1.5 million hadronic Z decays, collected during the 1991-1993 runs of ALEPH, with the silicon vertex detector fully operational, This uses the three-dimensional impact parameter distribution of lepton tracks coming from semileptonic b decays and yields an average b hadron lifetime of 1.533 +/- 0.013 +/- 0.022 ps.
1996
A precise measurement of the average b hadron lifetime / Buskulic, D., Debonis, I., Casper, D., Decamp, D., Ghez, P., Goy, C., Lees, J.p., Lucotte, A., Minard, M.n., Odier, P., Pietrzyk, B., Ariztizabal, F., Chmeissani, M., Crespo, J.m., Efthymiopoulos, I., Fernandez, E., Fernandezbosman, M., Gaitan, V., Orteu, S., Pacheco, A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 369:2(1996), pp. 151-162. [10.1016/0370-2693(95)01586-8]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/2903
Citazioni
  • Scopus 18
  • ???jsp.display-item.citation.isi??? 15
social impact