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Andrey Popov

Researcher at Université libre de Bruxelles

Publications -  1328
Citations -  68160

Andrey Popov is an academic researcher from Université libre de Bruxelles. The author has contributed to research in topics: Large Hadron Collider & Lepton. The author has an hindex of 113, co-authored 1184 publications receiving 60015 citations. Previous affiliations of Andrey Popov include University of Siena & University of Trento.

Papers
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Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at s√ = 8 TeV

Georges Aad, +5214 more
- 01 Aug 2020 - 
TL;DR: The combination of measurements of the W boson polarization in top quark decays performed by the ATLAS and CMS collaborations is presented in this paper, where the measurements are based on proton-proton collision data.
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Yb3+ ion in calcium niobium gallium garnet crystals: Nearest neighbor environment and optical spectra

Yu. K. Voron'ko, +3 more
- 01 Oct 2006 - 
TL;DR: In this paper, the authors studied inhomogeneously broadened optical spectra of the Yb3+ ion in calcium niobium gallium garnet crystals using selective laser excitation, time-resolved luminescence spectroscopy, and 2 F 5/2 lumen decay measurements under excitation in different portions of the absorption spectrum.

Exclusive and semi-exclusive pi+pi- production in proton-proton collisions at sqrt(s) = 7 TeV

Vardan Khachatryan, +2254 more
TL;DR: In this paper, a measurement of the exclusive and semi-exclusive production of charged pion pairs in proton-proton collisions is presented, where the pi+pi-pair is emitted at central rapidities, and scattered protons stay intact (p) or diffractively dissociate (p*) without detection.
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Observation of the two-photon photoelectric effect in low-intensity optical fields during photostimulated fractal aggregation of colloidal silver

Sergei V. Karpov, +2 more
- 01 Jul 1997 - 
TL;DR: In this paper, the two-photon photoelectric effect enhanced by the characteristic local fields of fractal nanostructures is observed in optical fields with intensity of the order of 10−3 W/cm2.
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Constraints on the $\chi_\mathrm{c1}$ versus $\chi_\mathrm{c2}$ polarizations in proton-proton collisions at $\sqrt{s} =$ 8 TeV

Albert M. Sirunyan, +2306 more
- 01 Jan 2020 - 
TL;DR: In this article, the polarizations of the mesons produced by the LHC at s = 8'TeV were measured in the helicity frame, through the analysis of the χc2 to χ c1 yield ratio as a function of the polar or azimuthal angle of the positive muon emitted in the J/ψ→μ+μ- decay, in three bins of J /ψ transverse momentum.