Limits on $\boldmath n {\bar n}$ oscillations from nuclear stability

dc.creatorGal, A.
dc.date1999-07-13
dc.date1999-11-04
dc.date.accessioned2026-07-07T10:33:54Z
dc.date.available2026-07-07T10:33:54Z
dc.descriptionThe relationship between the lower limit on the nuclear stability lifetime as derived from the non disappearance of `stable` nuclei ($T_{d}~\gtrsim~5.4~\times~10^{31}$ yr), and the lower limit thus implied on the oscillation time $(τ_{n \bar n})$ of a possibly underlying neutron-antineutron oscillation process, is clarified by studying the time evolution of the nuclear decay within a simple model which respects unitarity. The order-of-magnitude result $τ_{n \bar n} \approx 2 (T_{d}/Γ_{\bar n})^{1/2} > 2 \times 10^{8}$ sec, where $Γ_{\bar n}$ is a typical $\bar n$ nuclear annihilation width, agrees as expected with the limit on $τ_{n \bar n}$ established by several detailed nuclear physics calculations, but sharply disagreeing by 15 orders of magnitude with a claim published recently in Phys. Rev. CRAP.
dc.description8 pages; this PRC version (accepted for publication, November 4 1999) differs from the original version only by a few minor editorial changes
dc.identifierhttps://arxiv.org/abs/hep-ph/9907334
dc.identifierhttp://arxiv.org/abs/hep-ph/9907334
dc.identifierPhys.Rev.C61:028201,2000
dc.identifierdoi:10.1103/PhysRevC.61.028201
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/179291
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleLimits on $\boldmath n {\bar n}$ oscillations from nuclear stability
dc.typetext

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