[Indico] [Event reminder] Shoji, Baratella: The Standard Model lifetime is slightly shorter (05/09/2024, 14:00 Europe/Ljubljana)

[lorenzo...@ijs.si]

Please note that the event "Shoji, Baratella: The Standard Model lifetime is slightly shorter" will start on 5 Sept 2024, 14:00 (Europe/Ljubljana).
It will take place at F1 tea room (https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09).

You can access the full event here:
https://indico.ijs.si/e/2176

Description
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We revisit the decay rate of the electroweak vacuum in the Standard Model with the full one-loop prefactor. We focus on the gauge degrees of freedom and derive the degeneracy factors appearing in the functional determinant using group theoretical arguments. Our treatment shows that the transverse modes were previously overcounted, so we revise the calculation of that part of the prefactor. The new result modifies the gauge fields' contribution by 7% and slightly decreases the previously predicted lifetime of the electroweak vacuum, which remains much longer than the age of the universe. Our discussion of the transverse mode degeneracy applies to any calculation of functional determinants involving gauge fields in four dimensions.


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https://indico.ijs.si/e/2176

[lorenzo...@ijs.si]