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Neutron - Mirror Neutron Oscillations: How Fast Might They Be?
High Energy Physics - Phenomenology · Submitted 3 Jul 2005
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We show that the present experimental data allow a maximal n-n' oscillation in vacuum with a characteristic time $\tau$ much shorter than the neutron lifetime, in fact as small as 1 sec.
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The abstract, sentence by sentence
We discuss the phenomenological implications of the neutron (n) oscillation into the mirror neutron (n'), a hypothetical particle exactly degenerate in mass with the neutron but sterile to normal matter. We show that the present experimental data allow a maximal n-n' oscillation in vacuum with a characteristic time $\tau$ much shorter than the neutron lifetime, in fact as small as 1 sec. This phenomenon may manifest in neutron disappearance and regeneration experiments perfectly accessible to present experimental capabilities and may also have interesting astrophysical consequences, in particular for the propagation of ultra high energy cosmic rays.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We discuss the phenomenological implications of the neutron (n) oscillation into the mirror neutron (n'), a hypothetical particle exactly degenerate in mass with the neutron but sterile to normal matter. | background 0.68 | 0.31 | 0.05 | unclear 0.61 |
| s1 | We show that the present experimental data allow a maximal n-n' oscillation in vacuum with a characteristic time $\tau$ much shorter than the neutron lifetime, in fact as small as 1 sec. | result 1.00 | 0.83 | 0.79 | asserted 0.95 |
| s2 | This phenomenon may manifest in neutron disappearance and regeneration experiments perfectly accessible to present experimental capabilities and may also have interesting astrophysical consequences, in particular for the propagation of ultra high energy cosmic rays. | interpretation 0.99 | 0.19 | 0.18 | hedged possibility 0.99 |
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The paper
Original abstract
We discuss the phenomenological implications of the neutron (n) oscillation into the mirror neutron (n'), a hypothetical particle exactly degenerate in mass with the neutron but sterile to normal matter. We show that the present experimental data allow a maximal n-n' oscillation in vacuum with a characteristic time $\tau$ much shorter than the neutron lifetime, in fact as small as 1 sec. This phenomenon may manifest in neutron disappearance and regeneration experiments perfectly accessible to present experimental capabilities and may also have interesting astrophysical consequences, in particular for the propagation of ultra high energy cosmic rays.
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References
How the literature uses it
27 arXiv papers cite this in 69 sentences
Papers whose main result relates to this one's
States the same result 1 paper
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This paper has been withdrawn by the authors to avoid redundancy with e-print hep-ph0507031.
Neutron -- Mirror Neutron Oscillation: How Fast Might It Be? · 0.80
Papers citing it · 44 sentences without a confident label
Builds on it 2 papers
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Such a mixing with a single mirror copy was already studied in [ref] and as we shall see the case with many copies introduces some qualitatively distinct features.
Phenomenology of 10^32 Dark Sectors · Neutron Oscillations · 0.94
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[ref] also applies to neutron oscillations into mirror or dark neutrons [ref] , exotic phenomena proposed to explain the neutron lifetime puzzle.
Neutron Lifetime and Axial Coupling Connection · Introduction · 0.84
Uses its data or values 1 paper
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The limits on the period change in several pulsars led to an upper limit of $10^-13$ eV on $ϵ_nn'$, which is valid for mass splitting $δ_nn'$ up to few MeV [ref] .[If $n'$ is lighter than $n$, the $n - n'$ mass splitting can be at most roughly few MeV from nuclear stability [ref] .
Constraints on Neutron-Mirror-Neutron Oscillation from Neutron Star Cooling · Introduction · 0.82
Compares with it 1 paper
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Secondly, there is a qualitative novelty with respect to theories in which the neutron mixes with a partner of a fixed mass, such as the neutron from a mirror SM [ref] or many hidden copies of the SM [ref] .
Kaluza-Klein Spectroscopy from Neutron Oscillations into Hidden Dimensions · Introduction · 0.92
Cites it as background 15 papers
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In a special subclass of these models, where the mirror symmetry is almost exact, there arises the possibility of a highly degenerate neutron-mirror neutron system, raising the possibility of neutrons oscillating to mirror neutrons ($n-n'$ oscillation) [ref] .
Constraints on Neutron-Mirror-Neutron Oscillation from Neutron Star Cooling · Introduction · 0.82
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The phenomenology of mirror neutron oscillations was considered with the realization that strong limits on the possibility of rather fast oscillation times did not yet exist [ref] , and a more detailed treatment followed including the consideration of a small but nonzero mirror magnetic fields, which could originate from mirror matter accumulated in the Earth [ref] .
New Search for Mirror Neutrons at HFIR · Neutron Oscillations · 0.83
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As already summarised by many authors [ref] , such interactions between quarks and right-handed fermions are mediated by coloured scalars.
Coloured Scalar Mediated Nucleon Decays to Invisible Fermion · Introduction · 0.97
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