[Indico] [Event reminder] Maciej Kierkla: EFT of supercooled phase transition (09/05/2024, 14:00 Europe/Ljubljana)

[lorenzo...@ijs.si]

Please note that the event "Maciej Kierkla: EFT of supercooled phase transition" will start on 9 May 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/2070

Description
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We present an analysis of the first-order supercooled phase transition associated with symmetry breaking in the early Universe in a classically scale-invariant model. We analyze the role of higher order thermal corrections for these transitions, and to what extent they can be computed using dimensionally reduced effective field theory (3D EFT). This framework requires high temperature (HT) expansion to be valid, which seems challenging due to the presence of supercooling. We show how to reliably use the HT expansion in dimensionally reduced theory for the calculation of bubble nucleation rate. We compare the obtained results to the results of the most common scheme based on the so-called daisy resummation. 
We further compute all of phase transition characteristics, discuss various scenarios of completing the transition and predict resulting gravitational-wave spectra and their observational prospects in future experiments such as LISA.


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https://indico.ijs.si/e/2070

[lorenzo...@ijs.si]