Y. Liu

Measurement of energetic single-photon production at LEP

Maurizio Filippo Acciarri, Apriadi Salim Adam, O. Adriani, M. Aguilar-Benitez et autres

We describe the sample of energetic single-photon events (Eγ > 15 GeV) collected by L3 in the 1991–1993 LEP runs. The event distributions agree with expectations from the Standard Model. The data are used to constrain the ZZγ coupling and to set …

it, us, es, ch, ro, bg, ru (code pays fourni par la source)

B∗ production in Z decays at LEP

Maurizio Filippo Acciarri, Apriadi Salim Adam, O. Adriani, M. Aguilar-Benítez et autres

The production of B ∗ mesons in Z decays has been measured at LEP with the L3 detector. A sample of Z → b b events was obtained by tagging muons in 1.6 million hadronic Z decays collected in 1991, 1992 and …

it, us, es, ch, ro, bg, ru, in, hu, fr, nl, de, cn, kr (code pays fourni par la source)

Measurement of exclusive branching fractions of hadronic one-prong tau decays

Maurizio Filippo Acciarri, Apriadi Salim Adam, Oscar Adriani, M. Aguilar-Benitez et autres

We have measured the branching fractions for the hadronic τ decays, τ → πKnπ° ν (0≤ n ≤3), with the L3 detector at LEP. Multiphoton final states are analyzed using the fine-grained, high-resolution electromagnetic calorimeter. The decay channels are identified using a …

it, us, es, ch, ro, bg, ru (code pays fourni par la source)

A measurement of τ polarization at LEP

Maurizio Filippo Acciarri, Apriadi Salim Adam, O. Adriani, M. Aguilar-Benitez et autres

With a data sample of 86 000 Z → τ + τ − (γ) events collected in 1990 through 1993 we have measured the polarization of τ-leptons as a function of the production polar angle using the following 1-prong τ decay modes: …

it, us, es, ch, ro, bg, ru, in, nl, de, hu, fr, cn, kr (code pays fourni par la source)

A Study of jet production rates in the four flavor continuum and a test of QCD

L. Gibbons, S. Playfer, D. L. Hartill, G. Eigen et autres