Journal: Hyperfine Interactions

Abbreviation

Hyperfine Interact

Publisher

Springer

Journal Volumes

ISSN

0304-3843
1572-9540

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2003 - 200952010 - 202010
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Publications 1 - 10 of 15
  • The size of the proton
    Item type: Journal Article
    Nebel, T.; Kottmann, Franz; et al. (2012)
    Hyperfine Interactions
  • The Lamb-shift experiment in Muonic helium
    Item type: Journal Article
    Nebel, T.; Amaro, F.D.; Antognini, Aldo; et al. (2012)
    Hyperfine Interactions
  • The Gbar project, or how does antimatter fall?
    Item type: Conference Paper
    Indelicato, Paul; Chardin, G.; Grandemange, P.; et al. (2014)
    Hyperfine Interactions
  • Preparation of Fe/Pt films with perpendicular magnetic anisotropy
    Item type: Conference Paper
    Kavita, S.; Raghavendra Reddy, V.; Gupta, Ajay; et al. (2005)
    Hyperfine Interactions
  • Aspects of neutral atom traps for antihydrogen spectroscopy
    Item type: Journal Article
    Cesar, Cláudio L.; Crivelli, Paolo; Lambo, Ricardo (2009)
    Hyperfine Interactions
  • The GBAR antimatter gravity experiment
    Item type: Journal Article
    Pérez, Patrice; Banerjee, D.; Biraben, François; et al. (2015)
    Hyperfine Interactions
  • Measuring the gravitational free-fall of antihydrogen
    Item type: Conference Paper
    Storey, James W.; Aghion, Stefano; Ahlén, O.; et al. (2014)
    Hyperfine Interactions ~ Proceedings of the 11th International Conference on Low Energy Antiproton Physics (LEAP 2013) held in Uppsala, Sweden, 10–15 June, 2013
    Antihydrogen holds the promise to test, for the first time, the universality of free-fall with a system composed entirely of antiparticles. The AEgIS experiment at CERN’s antiproton decelerator aims to measure the gravitational interaction between matter and antimatter by measuring the deflection of a beam of antihydrogen in the Earths gravitational field (g¯¯¯). The principle of the experiment is as follows: cold antihydrogen atoms are synthesized in a Penning-Malberg trap and are Stark accelerated towards a moiré deflectometer, the classical counterpart of an atom interferometer, and annihilate on a position sensitive detector. Crucial to the success of the experiment is the spatial precision of the position sensitive detector. We propose a novel free-fall detector based on a hybrid of two technologies: emulsion detectors, which have an intrinsic spatial resolution of 50 nm but no temporal information, and a silicon strip / scintillating fiber tracker to provide timing and positional information. In 2012 we tested emulsion films in vacuum with antiprotons from CERN’s antiproton decelerator. The annihilation vertices could be observed directly on the emulsion surface using the microscope facility available at the University of Bern. The annihilation vertices were successfully reconstructed with a resolution of 1–2 μmon the impact parameter. If such a precision can be realized in the final detector, Monte Carlo simulations suggest of order 500 antihydrogen annihilations will be sufficient to determine g¯¯¯with a 1 % accuracy. This paper presents current research towards the development of this technology for use in the AEgIS apparatus and prospects for the realization of the final detector.
  • Thin Film, Near-Surface and Multi-Layer Investigations by Low-Energy μ+SR
    Item type: Journal Article
    Prokscha, T.; Morenzoni, E.; Suter, A.; et al. (2004)
    Hyperfine Interactions
  • Optical trapping of antihydrogen towards an atomic anti-clock
    Item type: Journal Article
    Crivelli, Paolo; Kolachevsky, Nikolai (2020)
    Hyperfine Interactions
    The unprecedented flux of low energy antiprotons delivered by the Extra Low ENergy Antiprotons (ELENA) ring, being under commissioning at CERN, will open a new era for precision tests with antimatter including laser and microwave spectroscopy and tests ofits gravitational behaviour. Here we present an alternative to magnetic trapping to perform ultra-high precision laser spectroscopy of antihydrogen. The proposed scheme is to load the ultra cold anti-hydrogen atoms produced by the GBAR experiment in an optical trap tuned at the magicwavelength of the 1S–2S transition in order to measure this interval at a level comparable or even better than its matter counter part. This will provide a very accurate test of Lorentz/CPT violating effects which can be parametrised in the framework of the Standard Model Extension. © Springer Nature 2018
  • muCool: a novel low-energy muon beam for future precision experiments
    Item type: Conference Paper
    Belosevic, Ivana; Antognini, Aldo; Bao, Yu; et al. (2019)
    Hyperfine Interactions ~ Proceedings of the 7th International Conference on Trapped Charged Particles and Fundamental Physics (TCP 2018)
Publications 1 - 10 of 15