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The effect of Coulomb interactions on relic neutrino detection via beta decaying impurities in (semi)metals
Karel van der Marck, Vadim Cheianov
Measuring the electron neutrino mass is a long-standing objective and requires a high energy resolution of certain -decay experiments, as well as a visible cosmic neutrino backg…
Heisenberg's uncertainty principle in the PTOLEMY project: a theory update
PTOLEMY Collaboration, A. Apponi, M. G. Betti +58
We discuss the consequences of the quantum uncertainty on the spectrum of the electron emitted by the -processes of a tritium atom bound to a graphene sheet. We analyze quantita…
Can we use heavy nuclei to detect relic neutrinos?
Oleksii Mikulenko, Yevheniia Cheipesh, Vadim Cheianov +1
Recent analysis of the viability of solid state-based relic neutrino detectors has revealed the fundamental necessity for the use of heavy, , -decayers as neutrino target…
Navigating the pitfalls of relic neutrino detection
Yevheniia Cheipesh, Vadim Cheianov, Alexey Boyarsky
Beta-spectrum of radioactive atoms was long ago predicted to bear an imprint of the Cosmic Neutrino Background (CB). Over the years, it has been recognised that the best chance…
Equilibration of the chiral asymmetry due to finite electron mass in electron-positron plasma
A. Boyarsky, V. Cheianov, O. Ruchayskiy +1
We calculate the rate of collisional decay of the axial charge in an ultrarelativistic electron-positron plasma, also known as the chirality flipping rate. We find that contrary to…
Evolution of the Primordial Axial Charge across Cosmic Times
A. Boyarsky, V. Cheianov, O. Ruchayskiy +1
We investigate collisional decay of the axial charge in an electron-photon plasma at temperatures 10 MeV - 100 GeV. We demonstrate that the decay rate of the axial charge is first…