The lifetime of the B-S(o) meson is measured using the semileptonic decay B-s(o)-->D(s)(-)l(+) nu X. The data sample consists of about 110 pb(-1) of p (p) over bar collisions at root s = 1.8 TeV collected by the CDF detector at Fermilab. Four different D-s(-) decay modes are reconstructed resulting in approximately 600 D(s)(-)l(+) signal events. The B-s(o) meson lifetime is determined to be tau(B-s(o))=(1.36+/-0.09(-0.05)(+0.06))) ps, where the first and second uncertainties are statistical and systematic, respectively. The B-s(o) mason decay length distribution is examined far a lifetime difference Delta Gamma/Gamma between the two mass eigenstates of the B-s(o) mason. An upper limit of Delta Gamma/Gamma <0.83 is set at the 95% confidence level. [S0556-2821(99)01103-0].

F., A., H., A., A., A., M. G., A., A., A., S. R., A., et al. (1999). Measurement of the B-S(0) meson lifetime using semileptonic decays. PHYSICAL REVIEW D, 59(3) [10.1103/PhysRevD.59.032004].

Measurement of the B-S(0) meson lifetime using semileptonic decays

PAOLETTI, RICCARDO;
1999-01-01

Abstract

The lifetime of the B-S(o) meson is measured using the semileptonic decay B-s(o)-->D(s)(-)l(+) nu X. The data sample consists of about 110 pb(-1) of p (p) over bar collisions at root s = 1.8 TeV collected by the CDF detector at Fermilab. Four different D-s(-) decay modes are reconstructed resulting in approximately 600 D(s)(-)l(+) signal events. The B-s(o) meson lifetime is determined to be tau(B-s(o))=(1.36+/-0.09(-0.05)(+0.06))) ps, where the first and second uncertainties are statistical and systematic, respectively. The B-s(o) mason decay length distribution is examined far a lifetime difference Delta Gamma/Gamma between the two mass eigenstates of the B-s(o) mason. An upper limit of Delta Gamma/Gamma <0.83 is set at the 95% confidence level. [S0556-2821(99)01103-0].
1999
F., A., H., A., A., A., M. G., A., A., A., S. R., A., et al. (1999). Measurement of the B-S(0) meson lifetime using semileptonic decays. PHYSICAL REVIEW D, 59(3) [10.1103/PhysRevD.59.032004].
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/11365/40043
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo