Precision Measurements to Test the Standard Model and for Explosive Nuclear Astrophysics
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Beschreibung
This thesis presents two significant results in the field of precision measurements in low-energy nuclear physics. Firstly, it presents a precise half-life determination of 11C, leading to the most precise ft-value for a beta decay transition between mirror nuclides, an important advance in the testing of the electroweak sector of the Standard Model. Secondly, it describes a high-precision mass measurement of 56Cu, a critical nucleus for determining the path of the astrophysical rapid-proton capture process, performed by the author using the LEBIT Penning trap at the National Superconducting Cyclotron Laboratory. This new measurement resolves discrepancies in previously-reported calculated mass excesses. In addition, the thesis also presents the construction and testing of a radio-frequency quadrupole cooler and buncher that will be part of the future N = 126 factory at Argonne National Laboratory aimed at producing nuclei of interest for the astrophysical rapid-neutron capture process for the first time.
This thesis presents two significant results in the field of precision measurements in low-energy nuclear physics. Firstly, it presents a precise half-life determination of 11C, leading to the most precise ft-value for a beta decay transition between mirror nuclides, an important advance in the testing of the electroweak sector of the Standard Model. Secondly, it describes a high-precision mass measurement of 56Cu, a critical nucleus for determining the path of the astrophysical rapid-proton capture process, performed by the author using the LEBIT Penning trap at the National Superconducting Cyclotron Laboratory. This new measurement resolves discrepancies in previously-reported calculated mass excesses. In addition, the thesis also presents the construction and testing of a radio-frequency quadrupole cooler and buncher that will be part of the future N = 126 factory at Argonne National Laboratory aimed at producing nuclei of interest for the astrophysical rapid-neutron capture process for the first time.
Nominated as an outstanding PhD thesis by the University of Notre Dame Provides an introduction to tests of the Standard Model via nuclear beta decays Presents advances in precision testing of the Standard Model Presents a Penning trap mass measurement for determining the astrophysical rp process pathway Gives an overview of the forthcoming Argonne facility for precision measurements of astrophysical processes
Autor*in
Adrian A. Valverde
Themen in »Precision Measurements to Test the Standard Model and for Explosive Nuclear Astrophysics«
tests of Standard Model Penning trap mass spectrometry nuclear beta decay half-life measurement astrophysical rp-process cooler-buncher electroweak sector of Standard Model Ft-value mixed mirror transition