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Article
CALET Observations during the First 5 Years on the ISS
The CALorimetric Electron Telescope CALET is collecting science data on the International Space Station since October 2015 with excellent and continuous performance. Energy is measured with a deep homogeneous ...
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Article
CALET Results after Three Years on Orbit on the International Space Station
The CALorimetric Electron Telescope (CALET) is an astroparticle physics experiment installed on the International Space Station since August 2015. The CALET mission was conceived to address several outstanding...
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Article
The GAMMA-400 experiment: Status and prospects
The development of the GAMMA-400 γ-ray telescope continues. The GAMMA-400 is designed to measure fluxes of γ-rays and the electron-positron cosmic-ray component possibly associated with annihilation or decay o...
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Article
CREAM-Pushing the high energy frontier of directly measured cosmic rays
After nearly a century since their discovery, much is still uncertain about cosmic rays, including their source, acceleration mechanism, and propagation. Direct measurement of cosmic-ray elemental spectra in t...
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Three-prong τ decays with charged kaons
Final states with charged kaons in three-prong τ decays are studied by exploiting the particle identification from the dE/dx measurement. The results are based on a sample of about 1.6 × 105 detected τ pairs coll...
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Article
A study of τ decays involving η, and ω mesons
The 132 pbt - 1 of data collected by ALEPH from 1991 to 1994 have been used to analyze η and ω production in τ decays. The following branching fractions have been measured:
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Article
Mass limit for the lightest neutralino
Indirect limits on the mass of the lightest neutralino are derived from the results of searches for charginos, neutralinos, and sleptons performed with data taken by the ALEPH Collaboration at centre-of-mass e...
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Article
Determination of sin2 θ w eff using jet charge measurements in hadronic Z decays
The electroweak mixing angle is determined with high precision from measurements of the mean difference between forward and backward hemisphere charges in hadronic decays of the Z. A data sample of 2.5 million...
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Article
Four-jet final state production in e+e− collisions at centre-of-mass energies of 130 and 136 GeV
The four-jet final state is analyzed to search for hadronic decays of pair-produced heavy particles. The analysis uses the ALEPH data collected at LEP in November 1995 at centre-of-mass energies of 130 and 136...
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Article
Improved measurement of theB 0 andB + meson lifetimes
The lifetimes of theB 0 andB + mesons have been measured with theAleph detector at LEP, using approximately 3 million hadronic Z decays collected in the period 1991–1994. In the fi...
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Article
Improved tau polarisation measurement
Using 22 pb−1 of data collected at LEP in 1992 on the peak of the Z resonance, the ALEPH collaboration has measured the polarisation of the tau leptons decaying into
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Article
Measurements of the charged particle multiplicity distribution in restricted rapidity intervals
Charged particle multiplicity distributions have been measured with the ALEPH detector in restricted rapidity intervals |Y| ≤0.5, 1.0, 1.5, 2.0 along the thrust axis and also without restriction on rapidity. The ...
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Article
Inclusive production of neutral vector mesons in hadronic Z decays
Data on the inclusive production of the neutral vector mesonsρ 0(770),ω(782), K*0(892), andφ(1020) in hadronic Z decays recorded with the ALEPH detector at LEP are presented and compared t...
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Article
Measurement ofD s + meson production inZ decays and of theB s 0 lifetime
D s + mesons produced inZ 0→bb events were separated from theZ ...
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First measurement of the quark-to-photon fragmentation function
Earlier measurements at LEP of isolated hard photons in hadronic Z decays, attributed to radiation from primary quark pairs, have been extended in the ALEPH experiment to include hard photon productioninside hadr...
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Article
Production of excited beauty states inZ decays
A data sample of about 3.0 million hadronicZ decays collected by the ALEPH experiment at LEP in the years 1991 through 1994 is used to make an inclusive selection of B hadron events. In this event sample 4227±140...
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Article
Inclusive π±, K± and \((p,\bar p)\) differential cross-sections at the Z resonance
Inclusive π±, K± and \((p,\bar p)\) differential cross-sections in hadronic decays of the Z have been measured as a ...
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Article
Study of the four-fermion final state at the Z resonance
The process e+e−→, where l is a charged or a neutral lepton and f any charged fermion, is analyzed. The study uses the ALEPH data collected at LEP from 1989 to 1993 at centre-of-mass energies between 88 and 95 Ge...
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Article
Z production cross sections and lepton pair forward-backward asymmetries
Precise values of theZ resonance cross sections and lepton pair forward-backward asymmetries are measured from a sample of 1.3 millionZ decays into hadrons and charged leptons taken with the ALEPH detector at LEP...
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Article
Production ofK 0 and Λ in hadronic Z decays
Measurements of the inclusive cross-sections forK 0 and Λ production in hadronic decays of the Z are presented together with measurements of two-particle correlations within pairs of Λ andK 0. The results are com...