About
Previous work has shown that the standard Coleman-Weinberg one loop effective potential with one loop thermal masses is both gauge and renormalisation dependent. It also poorly predicts the critical temperature of the electroweak phase transition compared to lattice simulations. One can improve on this approach by using the dimensionally reduced effective potential generated by DRalgo. However DRalgo only computes the effective potential symbolically, and so is unable to compute the critical temperature. To address this limitation we developed BLOOP (Beyond one LOOp Phase transition). BLOOP is a new python code which uses the symbolic expressions from DRalgo to numerically minimise the effective potential at one-or two-loop for any model. I will demonstrate the power of BLOOP by finding the parameter space that gives a strong first-order phase transition in a Z2-symmetric 3-higgs doublet model, and show the discrepancy between one- and two-loop predictions.
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The talk
Credits and licence
- Institution
- CERN
- Speaker
- Jasmine Thomson-Cooke
- Year
- 2026
- Language
- English
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed