I. Josa-Mutuberrı́a

Test of the τ-model of Bose–Einstein correlations and reconstruction of the source function in hadronic Z-boson decay at LEP

P. Achard, O. Adriani, M. Aguilar-Benitez, J. Alcaraz Maestre et autres

Bose–Einstein correlations of pairs of identical charged pions produced in hadronic Z decays are analyzed in terms of various parametrizations. A good description is achieved using a Lévy stable distribution in conjunction with a model where a particle’s momentum is correlated with …

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

Measurement of the branching ratios b â e ν X, μ ν X, Ï Î½ X and ν X

M. Acciarri, A. Adam, О. Адриани, M. Aguilar-Benítez et autres

Measurement of the branching ratios b → e Î1⁄2 X, Î1⁄4 Î1⁄2 X, Ï„ Î1⁄2 X and Î1⁄2 X

A search for flaring very-high-energy cosmic γ-ray sources with the L3+C muon spectrometer

P. Achard, О. Адриани, M. Aguilar-Benitez, M. van den Akker et autres

kr, es, us, hu, ru, fr, tw (code pays fourni par la source)

Further Tests of the CMS Drift Tubes Muon Trigger

M. Aldaya, A. Perrotta, Enrico Conti, G. Torromeo et autres

Two drift tubes stations of the CMS muon barrel system were exposed, in October 2004, to a 40 MHz bunched muon beam at the Cern SpS. The performances of the level-1 local trigger were tested at different energies and inclination angles of …

Measurement of the running of the electromagnetic coupling at large momentum-transfer at LEP

P. Achard, О. Адриани, M. Aguilar-Benitez, J. Alcaraz Maestre et autres

The evolution of the electromagnetic coupling, α, in the momentum-transfer range 1800GeV2<−Q2<21600GeV2 is studied with about 40 000 Bhabha-scattering events collected with the L3 detector at LEP at centre-of-mass energies s=189–209GeV. The running of α is parametrised as: α(Q2)=α01−CΔα(Q2), where α0≡α(Q2=0) is …

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

Measurement of the photon structure function F2γ with the L3 detector at LEP

P. Achard, O. Adriani, M. Aguilar-Benítez, J. Alcaraz Maestre et autres

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

Z-boson production with two unobserved, back-to-back, hard photons at LEP

P. Achard, О. Адриани, M. Aguilar-Benítez, J. Alcaraz Maestre et autres

ch, it, us, ru, in, nl, de, hu, tw, fr, cn (code pays fourni par la source)

Search for an invisibly-decaying Higgs boson at LEP

P. Achard, О. Адриани, M. Aguilar-Benítez, J. Alcaraz Maestre et autres

ch, it, us, ru, in, nl, de, hu, tw, fr, cn (code pays fourni par la source)

Measurement of exclusive ρ0ρ0 production in mid-virtuality two-photon interactions at LEP

P. Achard, O. Adriani, M. Aguilar-Benítez, J. Alcaraz Maestre et autres

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

Measurement of the atmospheric muon spectrum from 20 to 3000 GeV

P. Achard, О. Адриани, M. Aguilar-Benitez, M. van den Akker et autres

The absolute muon flux between 20 and 3000 GeV is measured with the L3 magnetic muon spectrometer for zenith angles ranging from 0° to 58°. Due to the large exposure of about 150m2sr d, and the excellent momentum resolution of the L3 …

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

Measurement of exclusive ρ+ρ− production in high- Q2 two-photon collisions at LEP

P. Achard, О. Адриани, M. Aguilar-Benítez, J. Alcaraz Maestre et autres

Exclusive ρ+ρ− production in two-photon collisions involving a single highly-virtual photon is studied for the first time with data collected by the L3 experiment at LEP at centre-of-mass energies 89<s<209GeV with a total integrated luminosity of 854.7pb−1. The cross section of the …

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

Muon-pair and tau-pair production in two-photon collisions at LEP [rapid communication] L3 Collaboration, P. Achard, O. Adriani, M. Aguilar-Benitez, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, M.G. Alviggi, H. Anderhub, V.P. Andreev, F. Anselmo, A. Arefiev, T. Azemoon, T. Aziz,

P. Bagnaia, A. Bajo, G. Baksay, L. Baksay et autres