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Physics of fundamental Symmetries and Interactions - PSI2016

16–20 Oct 2016
Europe/Zurich timezone

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Session

We - 4

19 Oct 2016, 16:40

Conveners

We - 4

  • M. Daum

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  1. 211. Ultracold neutrons at the Institut Laue Langevin in Grenoble, France
    Dr Peter Geltenbort (Institut Laue-Langevin)
    19/10/2016, 16:40
    Fundamental physics and precision experiments with muons, pions, neutrons, antiprotons, and other particles
    Oral
    Due to their outstanding property to be storable and hence observable for long periods of time (several hundreds of seconds) in suitable material or magnetic traps, ultra-cold neutrons (UCN) with energies around 100 neV are an unique tool to study fundamental properties of the free neutron. The ultracold neutron (UCN) and very cold neutron (VCN) facility PF2 (Physique Fondamentale 2) is one...
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  2. 220. qBOUNCE, a Quantum Bouncing Ball Gravity Spectrometer
    Hartmut Abele (Atominstitut)
    19/10/2016, 17:00
    Searches for symmetry violations and new forces
    Oral
    This talk focuses on the control and understanding of a gravitationally interacting elementary quantum system using the techniques of resonance spectroscopy. It offers a new way of looking at gravitation at short distances based on quantum interference. The ultra-cold neutron reflects from a mirror in well-defined quantum states in the gravity potential of the earth allowing the application of...
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  3. 260. PULSTAR UCN source: studying solid deuterium growth and evolution
    Dr Ekaterina Korobkina (NC State University)
    19/10/2016, 17:30
    Advanced muon and ultracold neutron sources
    Oral
    Solid deuterium is one of the two practical choices for making UCN convertors at modern UCN sources. The quality of the solid deuterium (SD2) crystal is crucial for obtaining a high UCN yield. The growth of deuterium was intensively studied for small targets in fusion and neutrino mass experiments, also in a somewhat larger size in preparation for the operation of the PSI UCN source. At...
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  4. 137. Two-Crystal Focusing Effect of diffracted neutron
    Dr Vladimir Voronin (Petersburg Nuclear Physics Institute)
    19/10/2016, 17:50
    Searches for permanent electric dipole moments
    Oral
    The effect of two-crystal focusing of neutrons at Laue diffraction from large perfect silicon crystals has been studied. This experiment was done at the framework of the project to test the neutron electroneutrality by new technique using the combination of spin-interferometry method SESANS (Spin Echo Small Angle Neutron Scattering) with the Laue diffraction in perfect crystal. It has been...
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  5. 138. Crystal acceleration effect for cold neutrons in vicinity of Bragg resonance
    Prof. Valery Fedorv (PNPI NRC KI)
    19/10/2016, 18:10
    Fundamental physics and precision experiments with muons, pions, neutrons, antiprotons, and other particles
    Oral
    A new mechanism of neutron acceleration in the accelerated perfect crystal is proposed and found experimentally. The effect arises due to the resonance energy dependence of neutron refraction index in a perfect crystal for neutron energies, close to the Bragg ones. As a result during the neutron time-of-flight through the crystal the value of deviation from the exact Bragg condition changes...
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