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A moiré deflectometer for antimatter

Author

Listed:
  • S. Aghion

    (Politecnico di Milano, Piazza Leonardo da Vinci 32
    Istituto Nazionale di Fisica Nucleare, Sez. di Milano)

  • O. Ahlén

    (European Organisation for Nuclear Research)

  • C. Amsler

    (Laboratory for High Energy Physics, Albert Einstein Center for Fundamental Physics, University of Bern)

  • A. Ariga

    (Laboratory for High Energy Physics, Albert Einstein Center for Fundamental Physics, University of Bern)

  • T. Ariga

    (Laboratory for High Energy Physics, Albert Einstein Center for Fundamental Physics, University of Bern)

  • A. S. Belov

    (Institute for Nuclear Research of the Russian Academy of Sciences)

  • K. Berggren

    (European Organisation for Nuclear Research)

  • G. Bonomi

    (University of Brescia
    Istituto Nazionale di Fisica Nucleare, Sez. di Pavia)

  • P. Bräunig

    (Kirchhoff Institute for Physics, Heidelberg University)

  • J. Bremer

    (European Organisation for Nuclear Research)

  • R. S. Brusa

    (University of Trento and TIFPA-INFN)

  • L. Cabaret

    (Laboratoire Aimé Cotton, CNRS, University of Paris-Sud, ENS Cachan)

  • C. Canali

    (Physics Institute, University of Zurich)

  • R. Caravita

    (Istituto Nazionale di Fisica Nucleare, Sez. di Milano
    University of Milan)

  • F. Castelli

    (Istituto Nazionale di Fisica Nucleare, Sez. di Milano
    University of Milan)

  • G. Cerchiari

    (Max Planck Institute for Nuclear Physics)

  • S. Cialdi

    (Istituto Nazionale di Fisica Nucleare, Sez. di Milano
    University of Milan)

  • D. Comparat

    (Laboratoire Aimé Cotton, CNRS, University of Paris-Sud, ENS Cachan)

  • G. Consolati

    (Politecnico di Milano, Piazza Leonardo da Vinci 32
    Istituto Nazionale di Fisica Nucleare, Sez. di Milano)

  • H. Derking

    (European Organisation for Nuclear Research)

  • S. Di Domizio

    (Istituto Nazionale di Fisica Nucleare, Sez. di Genova)

  • L. Di Noto

    (University of Trento and TIFPA-INFN)

  • M. Doser

    (European Organisation for Nuclear Research)

  • A. Dudarev

    (European Organisation for Nuclear Research)

  • A. Ereditato

    (Laboratory for High Energy Physics, Albert Einstein Center for Fundamental Physics, University of Bern)

  • R. Ferragut

    (Politecnico di Milano, Piazza Leonardo da Vinci 32
    Istituto Nazionale di Fisica Nucleare, Sez. di Milano)

  • A. Fontana

    (Istituto Nazionale di Fisica Nucleare, Sez. di Pavia)

  • P. Genova

    (Istituto Nazionale di Fisica Nucleare, Sez. di Pavia)

  • M. Giammarchi

    (Istituto Nazionale di Fisica Nucleare, Sez. di Milano)

  • A. Gligorova

    (Institute of Physics and Technology, University of Bergen)

  • S. N. Gninenko

    (Institute for Nuclear Research of the Russian Academy of Sciences)

  • S. Haider

    (European Organisation for Nuclear Research)

  • T. Huse

    (University of Oslo)

  • E. Jordan

    (Max Planck Institute for Nuclear Physics)

  • L. V. Jørgensen

    (European Organisation for Nuclear Research)

  • T. Kaltenbacher

    (European Organisation for Nuclear Research)

  • J. Kawada

    (Laboratory for High Energy Physics, Albert Einstein Center for Fundamental Physics, University of Bern)

  • A. Kellerbauer

    (Max Planck Institute for Nuclear Physics)

  • M. Kimura

    (Laboratory for High Energy Physics, Albert Einstein Center for Fundamental Physics, University of Bern)

  • A. Knecht

    (European Organisation for Nuclear Research)

  • D. Krasnický

    (Politecnico di Milano, Piazza Leonardo da Vinci 32
    Istituto Nazionale di Fisica Nucleare, Sez. di Genova)

  • V. Lagomarsino

    (Istituto Nazionale di Fisica Nucleare, Sez. di Genova
    University of Genoa)

  • S. Lehner

    (Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences)

  • A. Magnani

    (Istituto Nazionale di Fisica Nucleare, Sez. di Pavia
    University of Pavia)

  • C. Malbrunot

    (European Organisation for Nuclear Research
    Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences)

  • S. Mariazzi

    (University of Trento and TIFPA-INFN
    Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences)

  • V. A. Matveev

    (Institute for Nuclear Research of the Russian Academy of Sciences
    Joint Institute for Nuclear Research)

  • F. Moia

    (Politecnico di Milano, Piazza Leonardo da Vinci 32
    Istituto Nazionale di Fisica Nucleare, Sez. di Milano)

  • G. Nebbia

    (Istituto Nazionale di Fisica Nucleare, Sez. di Padova)

  • P. Nédélec

    (Institute of Nuclear Physics of Lyon, CNRS/IN2P3, University Lyon 1)

  • M. K. Oberthaler

    (Kirchhoff Institute for Physics, Heidelberg University)

  • N. Pacifico

    (Institute of Physics and Technology, University of Bergen)

  • V. Petràček

    (Czech Technical University in Prague, FNSPE)

  • C. Pistillo

    (Laboratory for High Energy Physics, Albert Einstein Center for Fundamental Physics, University of Bern)

  • F. Prelz

    (Istituto Nazionale di Fisica Nucleare, Sez. di Milano)

  • M. Prevedelli

    (University of Bologna)

  • C. Regenfus

    (Physics Institute, University of Zurich)

  • C. Riccardi

    (Istituto Nazionale di Fisica Nucleare, Sez. di Pavia
    University of Pavia)

  • O. Røhne

    (University of Oslo)

  • A. Rotondi

    (Istituto Nazionale di Fisica Nucleare, Sez. di Pavia
    University of Pavia)

  • H. Sandaker

    (Institute of Physics and Technology, University of Bergen)

  • P. Scampoli

    (Laboratory for High Energy Physics, Albert Einstein Center for Fundamental Physics, University of Bern
    University of Napoli Federico II, Via Cinthia)

  • J. Storey

    (Laboratory for High Energy Physics, Albert Einstein Center for Fundamental Physics, University of Bern)

  • M.A. Subieta Vasquez

    (University of Brescia
    Istituto Nazionale di Fisica Nucleare, Sez. di Pavia)

  • M. Špaček

    (Czech Technical University in Prague, FNSPE)

  • G. Testera

    (Istituto Nazionale di Fisica Nucleare, Sez. di Genova)

  • R. Vaccarone

    (Istituto Nazionale di Fisica Nucleare, Sez. di Genova)

  • E. Widmann

    (Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences)

  • S. Zavatarelli

    (Istituto Nazionale di Fisica Nucleare, Sez. di Genova)

  • J. Zmeskal

    (Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences)

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.

Suggested Citation

  • S. Aghion & O. Ahlén & C. Amsler & A. Ariga & T. Ariga & A. S. Belov & K. Berggren & G. Bonomi & P. Bräunig & J. Bremer & R. S. Brusa & L. Cabaret & C. Canali & R. Caravita & F. Castelli & G. Cerchiar, 2014. "A moiré deflectometer for antimatter," Nature Communications, Nature, vol. 5(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5538
    DOI: 10.1038/ncomms5538
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