Cosmic Neutrino Background detection with PTOLEMY - INSPIRE

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Cosmic Neutrino Background detection with PTOLEMY

PTOLEMY

Collaboration

•

Nicola Rossi

Jan 28, 2024

6 pages

Published in:

PoS EPS-HEP2023 (2024) 103

Contribution to:

- EPS-HEP2023
, 103

Published: Jan 28, 2024

DOI:

10.22323/1.449.0103

Experiments:

PTOLEMY

reference search2 citations

Citations per year

Abstract: (SISSA)

The PTOLEMY experiment aims at detecting the cosmic neutrino background, generated ap-proximately one second after the Big Bang, in accordance with Standard Cosmology. Given theextremely low energy of these neutrinos, reliable experimental detection can be accomplishedthrough neutrino captures on beta-unstable nuclides, eliminating the need for a specific energythreshold. Tritium implanted on a carbon-based nanostructure emerges as a promising candi-date among the various isotopes due to its favorable cross-section and low-endpoint energy. ThePtolemy collaboration plans to integrate a solid-state tritium source with a novel compact electro-magnetic filter, based on the dynamic transverse momentum cancellation concept. This filter willbe employed in conjunction with an event-based preliminary radio-frequency preselection. Themeasurement of neutrino mass and the exploration of light sterile neutrinos represent additionaloutcomes stemming from the Ptolemy experiment’s physics potential, even when utilizing smalleror intermediate-scale detectors. To finalize the conceptualization of the detector, a demonstratorprototype will be assembled and tested at LNGS in 2024. This prototype aims at addressing thechallenging aspects of the Ptolemy experiment.

neutrino: background
neutrino: mass
neutrino: capture
energy: low
neutrino: sterile
tritium
nuclide
transverse momentum
big bang
Gran Sasso

References(11)

Figures(0)

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