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A moiré deflectometer for antimatter.

S Aghion1, O Ahlén2, C Amsler3

  • 11] Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy [2] Istituto Nazionale di Fisica Nucleare, Sez. di Milano, Via Celoria 16, 20133 Milan, Italy.

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This summary is machine-generated.

Researchers measured antiproton acceleration using a moiré deflectometer, a novel technique for studying fundamental forces. This advancement paves the way for testing gravity

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Area of Science:

  • Fundamental physics
  • Antimatter research
  • Gravitational physics

Background:

  • Precise force measurements offer insights into fundamental interactions.
  • Gravitational interaction of neutral antimatter is of high interest.
  • Potential violation of the weak equivalence principle in antimatter warrants investigation.

Purpose of the Study:

  • To extend atom optics tools for measuring slow antiproton acceleration.
  • To investigate the gravitational interaction of neutral antimatter.
  • To open a route for direct detection of neutral antimatter's gravitational acceleration.

Main Methods:

  • Extension of the moiré deflectometer for antiproton studies.
  • Utilizing two identical transmission gratings.
  • Employing a spatially resolving emulsion detector for antiproton annihilations.
  • Absolute referencing with a photon pattern for force inference.

Main Results:

  • Successful extension of the moiré deflectometer for antiproton acceleration measurement.
  • Demonstrated direct inference of forces acting on antimatter.
  • Concept applicability to antihydrogen measurements (AEgIS collaboration).

Conclusions:

  • The moiré deflectometer is a viable tool for measuring antiproton acceleration.
  • This technique enables direct detection of gravitational acceleration on neutral antimatter.
  • Combining high energy and atomic physics methods offers a promising research direction.