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Particle Physics with Neutrons at the ESS

Dec 10 – 14, 2018
Geovetenskaps hus (room:Högbomsalen), Stockholm University
Europe/Stockholm timezone

Session

Precision neutron decay (1)

Dec 13, 2018, 10:50 AM
Geovetenskaps hus (room:Högbomsalen), Stockholm University

Geovetenskaps hus (room:Högbomsalen), Stockholm University

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  1. 278. New Physics effects in neutron beta decay: a theory view
    Martin Gonzales-Alonso
    12/13/18, 10:50 AM
  2. 279. Precise theory predictions in neutron decay
    Dr Andrzej Czarnecki
    12/13/18, 11:20 AM
  3. 280. Precise theory predictions in neutron beta decay: current limitations and challenges
    Dr Mikhail Gorshteyn
    12/13/18, 11:45 AM
    I review recent progress in calculating the hadron structure-dependent radiative corrections to the neutron beta-decay. An application of dispersion relations to the $\gamma W$-box allowed to provide a data-driven estimate of the uncertainty of this calculation, reducing the hadronic uncertainty by almost a factor 2.
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  4. 281. First-principles lattice QCD calculations of the neutron beta decay: challenges and prospects
    Dr Enrico Rinaldi
    12/13/18, 12:10 PM
    Measurements of the neutron lifetime and CKM matrix elements have evolved to become high-precisions tests of the existence of new physics. Thanks to the Standard Model relation between the neutron lifetime, the axial coupling $g_A$ of the neutron, and the CKM matrix element $V_{ud}$, we can use a QCD calculation of $g_A$ and $V_{ud}$ to learn about neutron decay from first-principles....
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