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SUMMARY:SPACE seminar: Laura Antonia Cerbone \; Filippo Contino
DTSTART:20260616T100000Z
DTEND:20260616T110000Z
DTSTAMP:20260602T133200Z
UID:indico-event-18113@indico.global
DESCRIPTION:Speaker 1: Laura Antonia Cerbone (SSM)\nTitle 1: \nAbstract 1:
  \n-----------------------------------------------------------------------
 --\nSpeaker 2: Filippo Contino (SSM)\nTitle 2: Vacuum stability in Geometr
 ic Trinity Gravity\nAbstract 2: The decay of a metastable (false) vacuum i
 s a crucial non-perturbative phenomenon\, as it plays an important role in
  constraining Standard Model and beyond the Standard Model physics. In par
 ticular\, it has been shown that gravity can have a significant impact on 
 the calculation of the decay rate. In this context\, it is natural to ask 
 whether different but classically equivalent formulations of gravity lead 
 to the same physical predictions. In this talk\, I will discuss vacuum dec
 ay in General Relativity and in its teleparallel and symmetric teleparalle
 l formulations\, namely TEGR and STEGR. Although these theories describe t
 he same classical dynamics\, it is of paramount importance to understand w
 hether this equivalence persists also at the quantum level. In this respec
 t\, the analysis of vacuum stability may provide a particularly sensitive 
 testing ground. The central question addressed in my talk is whether the d
 ecay rate of a false vacuum computed within TEGR or STEGR coincides with t
 he corresponding result obtained in GR. I will show that the tunneling exp
 onent remains unchanged\, offering a non-trivial example in which the equi
 valence between different formulations of gravity extends beyond classical
  dynamics.\nReferences 2:\n\nImpact of New Physics on the EW vacuum stabil
 ity in a curved spacetime background - E. Bentivegna\, V. Branchina\, F. C
 ontino\, D. Zappal`a\, JHEP 1712 (2017) 100\;\nProtecting the stability of
  the electroweak vacuum from Planck-scale gravitational effects - V. Branc
 hina\, F. Contino\, A. Pilaftsis\, Phys.Rev.D 98 (2018) 7\, 075001\;\nDire
 ct Higgs-gravity interaction and stability of our Universe - V. Branchina\
 , E. Bentivegna\, F. Contino\, D. Zappal`a\, Phys.Rev.D 99 (2019) 9\, 0960
 29\;\n\n------------------------------------------------------------------
 -------\nZoom link: click here\n\nhttps://indico.global/event/18113/
URL:https://indico.global/event/18113/
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