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Tachyonic Majorana neutrinos or neutrino spin-to-orbital angular momentum conversion in OPERA

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arxiv 1111.4441 v1 pith:AYJZO3B3 submitted 2011-11-18 hep-ph astro-ph.COhep-ex

M. Laveder , F. Tamburini , ((1) Department of Physics , Astronomy , University of Padova , Via Marzolo 8 , Padova , Italy
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INFN - Sezione di Padova - (2) Department of Physics CIVEN Venezia)
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classification hep-phastro-ph.COhep-ex
keywords majorananeutrinooperaangularconversionexpectedmassmomentum
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The new data release of OPERA - CNGS experiment, obtained with a shorter spill of protons, confirms the tachyionic behavior expected from the phenomenological model of a Majorana neutrino with a fictitious imaginary mass term acquired during the propagation in the Earth's crust, recently presented by us. We performed numerical simulations of neutrino event detections to compare the properties of these Majorana tachyons with the new OPERA results, finding a good agreement. The possibility of spin-to orbital angular momentum conversion that is expected to give a negative squared mass in a medium, is also briefly discussed.

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  1. On the scalar tachyons creation in noncommutative de Sitter space-time

    hep-th 2025-06 reject novelty 4.0 of 10

    A first-order noncommutative deformation of the tachyon Klein-Gordon equation yields a thermal creation spectrum with a momentum-dependent temperature below the Gibbons-Hawking value.

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