QED background against atomic neutrino process with initial spatial phase

Minoru Tanaka, Koji Tsumura, Noboru Sasao, Satoshi Uetake, Motohiko Yoshimura

    Research output: Contribution to journalArticlepeer-review


    Atomic deexcitation emitting a neutrino pair and a photon is expected to provide a novel method of neutrino physics if it is enhanced by quantum coherence in a macroscopic target. However, the same enhancement mechanism may also lead to a serious problem of enhanced QED background process. We show that the QED background can be suppressed enough in the photonic crystal waveguide by using the spatial phase that is imprinted in the process of initial coherence generation in the target at excitation.

    Original languageEnglish
    Article number283
    JournalEuropean Physical Journal Plus
    Issue number3
    Publication statusPublished - Mar 1 2020

    ASJC Scopus subject areas

    • Physics and Astronomy(all)


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