We have analyzed one-prong tau decays with neutral kaons using the information from a fine-grained hadron calorimeter. The data sample consists of 43 500 Z --> tau(+) tau(-) (gamma) events collected by the L3 detector at LEP in 1991, 1992 and 1993. The following branching fractions are measured: Beta(tau(-) --> upsilon(tau)pi(-)($) over bar K-0) = 0.0095 +/- 0.0015(stat) +/- 0.0006(syst); Beta(tau(-) --> nu(tau)pi(-)pi(0) ($) over bar K-0) = 0.0041 +/- 0.0012(stat) +/- 0.0003(syst) and Beta(tau(-) -->nu(tau)pi(-)($) over bar K-0 ($) over bar K-0) = 0.0031 +/- 0.0012(stat) +/- 0.0004( syst).

One-prong Tau-decays With Neutral Kaons / M. ACCIARRI, A. ADAM, O. ADRIANI, M. AGUILARBENITEZ, S. AHLEN, B. ALPAT, J. ALCARAZ, J. ALLABY, A. ALOISIO, G. ALVERSON, M. G. ALVIGGI, G. AMBROSI, Q. AN, H. ANDERHUB, V. P. ANDREEV, T. ANGELESCU, D. ANTREASYAN, A. AREFIEV, T. AZEMOON, T. AZIZ, et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 352:(1995), pp. 487-497. [10.1016/0370-2693(95)00509-J]

One-prong Tau-decays With Neutral Kaons

ADRIANI, OSCAR;D'ALESSANDRO, RAFFAELLO;M. LENTI;
1995

Abstract

We have analyzed one-prong tau decays with neutral kaons using the information from a fine-grained hadron calorimeter. The data sample consists of 43 500 Z --> tau(+) tau(-) (gamma) events collected by the L3 detector at LEP in 1991, 1992 and 1993. The following branching fractions are measured: Beta(tau(-) --> upsilon(tau)pi(-)($) over bar K-0) = 0.0095 +/- 0.0015(stat) +/- 0.0006(syst); Beta(tau(-) --> nu(tau)pi(-)pi(0) ($) over bar K-0) = 0.0041 +/- 0.0012(stat) +/- 0.0003(syst) and Beta(tau(-) -->nu(tau)pi(-)($) over bar K-0 ($) over bar K-0) = 0.0031 +/- 0.0012(stat) +/- 0.0004( syst).
1995
352
487
497
M. ACCIARRI;A. ADAM;O. ADRIANI;M. AGUILARBENITEZ;S. AHLEN;B. ALPAT;J. ALCARAZ;J. ALLABY;A. ALOISIO;G. ALVERSON;M. G. ALVIGGI;G. AMBROSI;Q....espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/772814
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