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X-ORIGINAL-URL:https://w3.lnf.infn.it
X-WR-CALDESC:Eventi per INFN-LNF
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TZID:Europe/Rome
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TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20240331T010000
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DTSTART:20241027T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20240522T100000
DTEND;TZID=Europe/Rome:20240522T120000
DTSTAMP:20260509T105925
CREATED:20240509T160059Z
LAST-MODIFIED:20240513T100829Z
UID:37524-1716372000-1716379200@w3.lnf.infn.it
SUMMARY:Dynamical origin of neutrino masses and dark matter from a new confining sector
DESCRIPTION:A dynamical mechanism\, based on a confining non-abelian dark symmetry\, which generates Majorana masses for sterile fermions\, is proposed. We apply it to the inverse seesaw scenario\, which allows us to generate light neutrino masses from the interplay of TeV-scale Pseudo-Dirac mass terms and a small explicit breaking of lepton number. A single generation of vector-like dark quarks\, transforming under a  SU(3) gauge symmetry\, is coupled to a real singlet scalar\, which serves as a portal between the dark quark condensate and three generations of heavy sterile neutrinos. In this framework the lightest dark baryon\, which has spin  3/2 and is stabilized at the renormalizable level by an accidental dark baryon number symmetry\, can account for the observed relic density via thermal freeze-out from annihilations into the lightest dark mesons.This model may be probed by next generation neutrino telescopes via neutrino lines produced from dark matter annihilations.
URL:/event/dynamical-origin-of-neutrino-masses-and-dark-matter-from-a-new-confining-sector/
LOCATION:Aula Seminari\, Via Enrico Fermi\, 40\, Frascati\, Roma\, 00044\, Italia
CATEGORIES:Seminari teorici
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BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20240522T113000
DTEND;TZID=Europe/Rome:20240522T133000
DTSTAMP:20260509T105925
CREATED:20240509T160059Z
LAST-MODIFIED:20240513T100829Z
UID:37521-1716377400-1716384600@w3.lnf.infn.it
SUMMARY:New Higgses at the Electroweak Scale
DESCRIPTION:Significant hints for new Higgses with masses around 95GeV and 152GeV have been accumulated. In this talk\, I will discuss the relevant measurements as well as possible models which can explain these excesses. Furthermore\, I show how the new Scalars could explain the deviations between the theory predictions and the measurements of differential top quark distributions.
URL:/event/new-higgses-at-the-electroweak-scale/
LOCATION:Aula Seminari\, Via Enrico Fermi\, 40\, Frascati\, Roma\, 00044\, Italia
CATEGORIES:Seminari teorici
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