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Träfflista för sökning "WFRF:(Lagomarsino M) srt2:(2010-2014)"

Sökning: WFRF:(Lagomarsino M) > (2010-2014)

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1.
  • Aghion, S., et al. (författare)
  • A moiré deflectometer for antimatter
  • 2014
  • Ingår i: Nature Communications. - : Nature Publishing Group. - 2041-1723. ; 5
  • Tidskriftsartikel (refereegranskat)abstract
    • The precise measurement of forces is one way to obtain deep insight into the fundamental interactions present in nature. In the context of neutral antimatter, the gravitational interaction is of high interest, potentially revealing new forces that violate the weak equivalence principle. Here we report on a successful extension of a tool from atom optics—the moiré deflectometer—for a measurement of the acceleration of slow antiprotons. The setup consists of two identical transmission gratings and a spatially resolving emulsion detector for antiproton annihilations. Absolute referencing of the observed antimatter pattern with a photon pattern experiencing no deflection allows the direct inference of forces present. The concept is also straightforwardly applicable to antihydrogen measurements as pursued by the AEgIS collaboration. The combination of these very different techniques from high energy and atomic physics opens a very promising route to the direct detection of the gravitational acceleration of neutral antimatter.
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2.
  • Ariga, T., et al. (författare)
  • Measuring GBAR with emulsion detector
  • 2014
  • Ingår i: International Journal of Modern Physics, Conference Series. - : World Scientific. - 2010-1945. ; 30
  • Tidskriftsartikel (refereegranskat)
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3.
  • Bottinelli, Arianna, et al. (författare)
  • Influence of homology and node age on the growth of protein-protein interaction networks
  • 2012
  • Ingår i: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics. - 1539-3755 .- 1550-2376. ; 86:4, s. 041919-
  • Tidskriftsartikel (refereegranskat)abstract
    • Proteins participating in a protein-protein interaction network can be grouped into homology classes following their common ancestry. Proteins added to the network correspond to genes added to the classes, so the dynamics of the two objects are intrinsically linked. Here we first introduce a statistical model describing the joint growth of the network and the partitioning of nodes into classes, which is studied through a combined mean-field and simulation approach. We then employ this unified framework to address the specific issue of the age dependence of protein interactions through the definition of three different node wiring or divergence schemes. A comparison with empirical data indicates that an age-dependent divergence move is necessary in order to reproduce the basic topological observables together with the age correlation between interacting nodes visible in empirical data. We also discuss the possibility of nontrivial joint partition and topology observables.
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  • Resultat 1-3 av 3

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