Pierre Guichard

Publications

What has been written down

Author names are given as they appear, or are expected to appear, on each paper. The last three were produced by the GBAR collaboration at CERN: they are not my own work, but they describe the experimental programme the antimatter study is situated in.

Google Scholar

Published

  • 01
    Fast hydrogen atom diffraction through monocrystalline graphene
    P. Guichard, A. Dochain, R. Marion, P. de Crombrugghe de Picquendaele, N. Lejeune, B. Hackens, P.-A. Hervieux, X. Urbain
    Physical Review Letters 135, 263403 (2025)doi:10.1103/wdx6-mrvmEditors’ Suggestion
    First observation of a neutral atom diffracting in transmission through a single sheet of graphene.
  • 02
    Carbon nitride monolayer nanosheets: astrochemical insights into the fate of interstellar hydrogen
    D. Dubois, P. Guichard, R. Pasquier
    Physical Chemistry Chemical Physics 28, 11292–11302 (2026)doi:10.1039/D6CP00221H

Submitted

  • 03
    Numerical simulations of positron plasma cooling in a Penning–Malmberg trap
    With the group of F. Valentini (University of Calabria) and O. Pezzi (CNR-ISTP)
    Submitted to Physics of Plasmas (AIP Publishing) — under review

In preparation

  • 04
    Associative ionization in H*(ns) + H(1s) collisions: an extended semi-classical model and its scaling law
    To be submitted shortly
  • 05
    Helium on graphene and alkali halides: the validity domain of the independent-atom model
  • 06
    Casimir–Polder attraction and the negative results of fast-atom diffraction
  • 07
    From molecular flakes to the periodic bulk: convergence of the atom–surface interaction with cluster size
  • 08
    Topological frustration and magnetism in the Cn fullerene family: a finite-temperature density functional survey

As a member of the GBAR collaboration

Produced by the collaboration at CERN. Not part of my own work, but concerning the experimental programme within which the antimatter study is situated.

  • 09
    Record accumulation of antiprotons in a Penning–Malmberg trap and their preparation for improved production of antihydrogen beams
    B. Lee, B. Kim, P. Adrich et al. (38 authors, incl. P. Guichard)
    Journal of Physics G: Nuclear and Particle Physics 53, 085002 (2026)doi:10.1088/1361-6471/ae7456GBAR collaboration
  • 10
    A determination of the backscattering probability of low-energy antiprotons
    K. Park, E. Perez, P. Adrich et al. (GBAR collaboration, incl. P. Guichard)
    Preprint arXiv:2608.11795 [hep-ex] (2026)doi:10.48550/arXiv.2608.11795GBAR collaboration
  • 11
    News from the GBAR experiment: improved positron accumulation in a buffer gas trap with a silicon carbide remoderator
    L. Liszkay, P. Adrich, I. Belosevic et al. (49 authors, incl. P. Guichard)
    Journal of Physics: Conference Series 3149, 012002 (2025)doi:10.1088/1742-6596/3149/1/012002GBAR collaboration

Communications

Talks and posters presented at conferences and collaboration meetings.