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VERSION:2.0
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BEGIN:VEVENT
SUMMARY:Gravitational Waves as a Window on Conformal Neutrino-Mass Models
DTSTART:20260113T163000Z
DTEND:20260113T180000Z
DTSTAMP:20260908T201705Z
UID:f51b3006-1772-4417-940a-e1cfce03059f
SEQUENCE:1
CREATED:20260109T153744Z
DESCRIPTION: Covering a broad frequency range — from millihertz space in
 terferometers up to the kilohertz band of ground-based detectors — this 
 talk discusses how primordial gravitational waves can probe High-Energy Ph
 ysics beyond the Standard Model. Focusing on supercooled first-order phase
  transitions in (classically) conformal U(1)′ extensions that account fo
 r neutrino masses via the type-I seesaw (Majoron-like realizations)\, I sh
 ow how the predicted stochastic GW background becomes tightly linked to th
 e symmetry-breaking scale\, couplings\, and the heavy-neutrino sector\, wi
 th present LVK data already constraining parts of parameter space and futu
 re LISA/ET observations offering decisive tests. Building on this\, I high
 light how sufficiently strong and long-lasting transitions can simultaneou
 sly source primordial black holes and primordial magnetic fields\, enablin
 g multi-messenger correlations with microlensing and gamma-ray probes. 
LAST-MODIFIED:20260109T153744Z
LOCATION:DF Seminar Room (2-8.3)\, 2nd floor of Physics Building
URL:http://df.vps.tecnico.ulisboa.pt/en/events/gravitational-waves-as-a-wi
 ndow-on-conformal-neutrino-mass-models/
X-ALT-DESC;FMTTYPE=text/html:<p data-block-key="wopc7"> Covering a broad f
 requency range — from millihertz space interferometers up to the kiloher
 tz band of ground-based detectors — this talk discusses how primordial g
 ravitational waves can probe High-Energy Physics beyond the Standard Model
 . <br/><br/>Focusing on supercooled first-order phase transitions in (clas
 sically) conformal U(1)′ extensions that account for neutrino masses via
  the type-I seesaw (Majoron-like realizations)\, I show how the predicted 
 stochastic GW background becomes tightly linked to the symmetry-breaking s
 cale\, couplings\, and the heavy-neutrino sector\, with present LVK data a
 lready constraining parts of parameter space and future LISA/ET observatio
 ns offering decisive tests. <br/><br/>Building on this\, I highlight how s
 ufficiently strong and long-lasting transitions can simultaneously source 
 primordial black holes and primordial magnetic fields\, enabling multi-mes
 senger correlations with microlensing and gamma-ray probes. </p>
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