BEGIN:VCALENDAR VERSION:2.0 PRODID:-//linuxsoftware.nz//NONSGML Joyous v1.4//EN BEGIN:VEVENT SUMMARY:Radiative neutrino masses DTSTART:20230713T160000Z DTEND:20230713T180000Z DTSTAMP:20260725T231024Z UID:686ae947-4113-4adb-bd2e-360a3bef2bcd SEQUENCE:1 CREATED:20230707T081451Z DESCRIPTION: Abstract:I will present four models where light active neutri no masses are radiatively generated. In the first one\, the tiny active ne utrino masses are generated via a three-loop radiative inverse seesaw mech anism\, with the Dirac and Majorana submatrices arising at one-loop level. To the best of my knowledge\, this is the first example of the inverse se esaw mechanism being implemented with both submatrices generated at one-lo op level. The model is consistent with electroweak precision observables\, the electron and muon anomalous magnetic moments as well as with the cons traints arising from charged lepton flavor violation and the 95 GeV diphot on excess. In the second model\, a dark sector seeds neutrino mass generat ion radiatively within the linear seesaw mechanism and sizeable rates for charged lepton flavor violation are obtained. The third model is a Majoron -like extension of the Standard Model with an extra global U(1)X symmetry where neutrino masses are generated through an inverse seesaw mechanism at the 1-loop level. The model is also consistent with charged lepton flavor violation and dark matter. The fourth one is a minimally extended inert d oublet model where the tiny neutrino masses are generated through a three- loop seesaw. The model has viable dark matter candidates and leads to a ri ch phenomenology while satisfying all the current constraints imposed by n eutrinoless double-beta decay\, charged-lepton flavor violation\, and elec troweak precision observables. LAST-MODIFIED:20230707T081451Z LOCATION:Sala de Seminários do DF\, Pavilhão de Física\, 2º piso URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/radiative-neutrino-masses/ X-ALT-DESC;FMTTYPE=text/html:

Abstract:I will present four models where light active neutrino masses are radia tively generated. In the first one\, the tiny active neutrino masses are g enerated via a three-loop radiative inverse seesaw mechanism\, with the Di rac and Majorana submatrices arising at one-loop level. To the best of my knowledge\, this is the first example of the inverse seesaw mechanism bein g implemented with both submatrices generated at one-loop level.

The model is consistent with electroweak precision observables\, the elec tron and muon anomalous magnetic moments as well as with the constraints a rising from charged lepton flavor violation and the 95 GeV diphoton excess . In the second model\, a dark sector seeds neutrino mass generation radia tively within the linear seesaw mechanism and sizeable rates for charged l epton flavor violation are obtained.

The third model is a Majoro n-like extension of the Standard Model with an extra global U(1)X symmetry where neutrino masses are generated through an inverse seesaw mechanism a t the 1-loop level. The model is also consistent with charged lepton flavo r violation and dark matter. The fourth one is a minimally extended inert doublet model where the tiny neutrino masses are generated through a three -loop seesaw. The model has viable dark matter candidates and leads to a r ich phenomenology while satisfying all the current constraints imposed by neutrinoless double-beta decay\, charged-lepton flavor violation\, and ele ctroweak precision observables.

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