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Physics of fundamental Symmetries and Interactions - PSI2016

16–20 Oct 2016
Europe/Zurich timezone

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Session

Th - 2

20 Oct 2016, 11:00

Conveners

Th - 2

  • S. Roccia

Presentation materials

There are no materials yet.

  1. 168. Searching for ultralight dark matter with atomic spectroscopy and magnetic resonance
    Prof. DMITRY BUDKER (Helmholtz Institute Mainz)
    20/10/2016, 11:00
    Searches for symmetry violations and new forces
    Oral
    Axions, axion-like particles (ALPs), dilatons, and other ultralight (masses from 10-4 down to 10-23 eV) particles have been discussed as possible candidates for dark matter. An interesting feature of these ideas is that they lead to predictions of potentially observable transient and oscillating effects. I will describe how we are looking for these as well as the relation of such experiments...
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  2. 227. Flavour Physics in and beyond the Standard Model
    Andreas Crivellin (PSI)
    20/10/2016, 11:30
    Low energy precision tests of the Standard Model
    Oral
    In this talk I review the status of flavour physics. I first discuss the theoretical progress of the Standard Model calculations and how they compare to the experimental measurements of BELLE, BABAR, LHCb and MEG. While most observables are in excellent agreement with the theory predictions, in the last years hints for lepton flavor non-universality in channels with muons and tau leptons...
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  3. 159. Search for new gravity-like interactions and test of the equivalence principle using slow neutrons
    Dr Yoshio Kamiya (International Center for Elementary Particle Physics, The University of Tokyo)
    20/10/2016, 12:00
    Searches for symmetry violations and new forces
    Oral
    We report updates of experimental constraints on new gravity-like interactions by measuring the angular distribution of cold neutrons scattering off atomic xenon gas. The results improved previous upper limit on Yukawa-type parametrization space in the 4 to 0.04 nm range by a factor of up to 10[1]. We also discuss about our plans of a test of the weak equivalence principle and a new force...
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  4. 141. Measurements of Neutron and Nuclear Beta Decay Using Highly-Segmented Silicon Detectors In a Magnetic Spectrometer
    Dr Jonathan Wexler for the Nab & UCNB Collaborations (North Carolina State University)
    20/10/2016, 12:20
    Fundamental physics and precision experiments with muons, pions, neutrons, antiprotons, and other particles
    Oral
    High precision measurements of the beta spectrum from neutron and nuclear decay are a sensitive probe for beyond standard model physics. In particular, exotic scalar and tensor couplings can produce Fierz terms which introduce a characteristic distortion to the standard model spectrum, inversely proportional to the beta energy. Employing silicon detectors, with understood charge collection...
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  5. 197. A Measurement of the Electron-Antineutrino Correlation in Free Neutron Beta Decay
    Prof. Alexander Komives (DePauw University)
    20/10/2016, 12:40
    Fundamental physics and precision experiments with muons, pions, neutrons, antiprotons, and other particles
    Oral
    The aCORN Collaboration has analyzed data taken on the NG-6 beamline at the NIST (National Institute of Standards and Technology) Center for Neutron Research and achieved the most precise measurement to date of the angular correlation (a-coefficient) between the electron and antineutrino emitted in free neutron beta decay. Such a measurement provides a test of the Electroweak Standard Model...
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