Models of $n\bar{n}$ transition in medium

Details Models of $n\bar{n}$ transition in medium Models of $n\bar{n}$ transition in medium

2011-11-24

arxiv.org/abs/1111.5705v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:1101.2310 and arXiv:1003.4360

Scientific paper

The present state of the $n\bar{n}$ transition problem is briefly outlined. The models based on the diagram technique for direct reactions, potential description of $\bar{n}$-medium interaction and field-theoretical approach are considered. It is shown that for the $n\bar{n}$ transition in medium field-theoretical approach should be used. The lower limit on the free-space $n\bar{n}$ oscillation time $\tau_{{\rm min}}$ is found to be: $10^{16}\; {\rm yr}>\tau_{{\rm min}}>1.2\cdot 10^{9}\; {\rm s}$.

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