9th International Conference on High Energy Particle and Nuclear Physics in the LHC Era

Session

Parallel session 2: Neutrino Physics (1/2)

7 Jan 2025, 14:30

Building A (Santa Maria University)

575. Left-Right model with radiative double seesaw mechanism

Dr Antonio Enrique Cárcamo Hernández (Universidad Técnica Federico Santa María)

07/01/2025, 14:30

Neutrino Physics

parallel

We propose an extended Left-Right symmetric model with an additional global symmetry U(1)X, which after spontaneous symmetry breaking collapses to a residual subgroup Z2, ensuring that the light active neutrino masses are generated via a double seesaw mechanism at two loop level, with the Dirac submatrix arising at one loop. It also guarantees one loop level masses for the SM charged fermions...

472. Dimuon production predictions for high energy neutrino detectors using the color dipole model

Edgar Huayra

07/01/2025, 14:50

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Interactions of high-energy neutrinos with matter can be studied through the angular separation observed in dimuon production, an observable particularly sensitive to the transverse momentum dynamics of partons. In this work, we utilize the color dipole model, in conjuction with Pythia8 Monte Carlo shower and hadronization simulations, to predict dimuon production cross sections within the...

452. Determining the leading-order contact term induced by sterile neutrinos in neutrinoless double β decay

Sebastián Urrutia Quiroga (Institute for Nuclear Physics, University of Washington, USA)

07/01/2025, 15:10

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Sterile neutrinos are present in multiple extensions to the Standard Model and participate in neutrino mass mechanisms, from simple type-I seesaw models to UV complete theories like left-right symmetry. In total analogy to the case of light neutrinos, the neutrinoless double β decay amplitude induced by the exchange of sterile neutrinos requires the introduction of a leading-order, short-range...

498. Searches for CEvNS and BSM physics at CONNIE

Nicolás Avalos (Instituto Balseiro (Universidad Nacional de Cuyo, Comisión Nacional de Energía Atómica), CONICET)

07/01/2025, 15:30

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CONNIE (COherent Neutrino-Nucleus Interaction Experiment) utilizes high-resistivity silicon CCDs to measure coherent elastic neutrino-nucleus scattering (CEvNS) of reactor antineutrinos on silicon nuclei at the Angra-2 reactor in Brazil. In 2021, the setup was enhanced with two Skipper CCDs, pushing the sensitivity threshold to 15 eV and demonstrating the potential of Skipper CCDs in reactor...