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SUMMARY:IFIC Seminar: Probing Neutrino Self-Interactions with Electroweak 
 Precision
DTSTART;VALUE=DATE-TIME:20261013T100000Z
DTEND;VALUE=DATE-TIME:20261013T110000Z
DTSTAMP;VALUE=DATE-TIME:20261001T025017Z
UID:indico-event-8792@indico.ific.uv.es
DESCRIPTION:\nStrong self-interactions among active neutrinos mediated by 
 a neutrinophilic scalar is a well-motivated target of particle physics and
  cosmological probes. In this talk\, I will give a brief overview of neutr
 ino self-interactions and discuss their effect on precision electroweak da
 ta. First\, I will present a simplified model where the finite radiative 
 corrections are obtained with the guidance of gauge invariance. These corr
 ections are logarithmically enhanced for small mediator masses. I will dis
 cuss the importance of neutrino charged-current coupling correction and it
 s impact on the ∆r parameter and Fermi constant measurements. This effec
 t was overlooked previously and allows us to derive the leading constraint
  on the neutrinophilic couplings for mediator mass above a few hundred MeV
 . Second\, I will present a concrete UV completion which further includes 
 a TeV-scale SU(2)​ triplet scalar and show the simplified model constra
 ints continue to hold for a wide range of parameter space. These results s
 erve as a useful roadmap for future explorations of the self-interacting n
 eutrino paradigm.\n\n\nhttps://indico.ific.uv.es/event/8792/
LOCATION:Universe 1001-Primera-1-1-1 - Paterna. Seminario
URL:https://indico.ific.uv.es/event/8792/
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