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A. Lebedev

Researcher at Massachusetts Institute of Technology

Publications -  255
Citations -  14130

A. Lebedev is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: Electron–positron annihilation & Lepton. The author has an hindex of 48, co-authored 245 publications receiving 12736 citations. Previous affiliations of A. Lebedev include University College Dublin & Harvard University.

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First result from the Alpha Magnetic Spectrometer on the International Space Station: precision measurement of the positron fraction in primary cosmic rays of 0.5-350 GeV.

M. Aguilar, +347 more
TL;DR: The very accurate data show that the positron fraction is steadily increasing from 10 to ∼ 250 GeV, but, from 20 to 250 GeV, the slope decreases by an order of magnitude, showing the existence of new physical phenomena.
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Precision Measurement of the Proton Flux in Primary Cosmic Rays from Rigidity 1 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station

M. Aguilar, +294 more
TL;DR: In this paper, a precise measurement of the proton flux in primary cosmic rays with rigidity (momentum/charge) from 1.GV to 1.8TV is presented based on 300 million events.
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Electroweak measurements in electron positron collisions at W-boson-pair energies at LEP

S. Schael, +1675 more
- 30 Nov 2013 - 
TL;DR: In this paper, the results of the four LEP experiments were combined to determine fundamental properties of the W boson and the electroweak theory, including the branching fraction of W and the trilinear gauge-boson self-couplings.
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Observation of muon neutrino disappearance with the MINOS detectors in the NuMI neutrino beam

D. G. Michael, +302 more
TL;DR: In this article, the MINOS experiment reported results from its initial exposure to neutrinos from the Fermilab NuMI beam, and the rate and energy spectra of charged current muon neutrino interactions are compared in two detectors located along the beam axis at distances of 1 km and 735 km.
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High Statistics Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5-500 GeV with the Alpha Magnetic Spectrometer on the International Space Station

L. Accardo, +311 more
TL;DR: The new results show, for the first time, that above ∼200 GeV the positron fraction no longer exhibits an increase with energy.