Neutrino oscillations originate from virtual excitation of Z bosons

• URL: http://arxiv.org/abs/2407.00954v3
• Date: Tue, 19 Nov 2024 07:16:19 GMT
• Title: Neutrino oscillations originate from virtual excitation of Z bosons
• Authors: Shi-Biao Zheng,
• Abstract summary: neutrino oscillations originate from virtual excitation of the Z bosonic field over the space. When the neutrino propagates in matter, its behavior is determined by the competition between the coherent flavor transformation and decoherence effect resulting from scatterings.
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• Abstract: To account for neutrino oscillations, it was postulated that the neutrino has nonvanishing mass and each flavor eigenstate is formed by three distinct mass eigenstates, whose probability amplitudes interfere with each other during its propagation. However, for a neutrino produced by the decay of an unstable particle, these mass eigenstates, if they exist, would be entangled with distinct joint momentum eigenstates of the entire system, composed of all the particles produced by the decay. This entanglement destroys the quantum coherence among the neutrino's mass eigenstates, which is responsible for flavor oscillations under the aforementioned postulation. I reveal that the neutrino oscillations actually originate from virtual excitation of the Z bosonic field diffusing over the space. During the propagation, the neutrino can continually excite and then immediately re-absorb a virtual Z boson. This virtual bosonic excitation produces a backaction on the neutrino, enabling it to oscillate among three flavors. When the neutrino propagates in matter, its behavior is determined by the competition between the coherent flavor transformation and decoherence effect resulting from scatterings.

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