| $\bf{> 448}$ |
90 |
|
|
CNTR |
| • • • We do not use the following data for averages, fits, limits, etc. • • • |
| $>1$ |
95 |
1 |
|
CNTR |
|
|
2 |
|
CNTR |
| $> 9$ |
95 |
3 |
|
CNTR |
| $>17$ |
95 |
4 |
|
CNTR |
| $> 12$ |
95 |
5 |
|
CNTR |
| $> 414$ |
90 |
|
|
CNTR |
| $> 103$ |
95 |
|
|
CNTR |
|
1
BAN 2023 determine limits on the oscillation time for the $\vert \delta $m(nn')$\vert $ range of $2 - 59$ peV. The quoted value is ${\mathit \tau}_{\mathrm {nn'}}/\sqrt {cos (\beta ) }$ $>$ 1 sec. for ${{\mathit B}}$ in $30 - 1143$ $\mu $T, for the case $\beta $ = 0.
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|
2
ALMAZAN 2022 reports an experimental constraint on the probability for neutron conversion into a hidden neutron, $\mathit p$ $<$ $3.1 \times 10^{-11}$ at 95$\%$ CL, which may be used to set a limit on the ${{\mathit n}}{{\mathit n}^{\,'}}$ oscillation time.
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3
ABEL 2021 determine several limits on the oscillation time as a function of the mirror magnetic field ${{\mathit B}^{\,'}}$, and of the fixed angle, $\beta $, between the applied magnetic field and ${{\mathit B}^{\,'}}$. The latter is assumed to be bound to Earth. Two values are quoted from two analysis methods: (i) ${\mathit \tau}_{\mathrm {nn'}}/\sqrt {cos (\beta ) }$ $>$ 9 sec for ${{\mathit B}^{\,'}}$ in $5 - 25.4$ $\mu $T, and (ii) for any angle $\beta $, ${\mathit \tau}_{\mathrm {nn'}}$ $>$ 6 sec for ${{\mathit B}^{\,'}}$ in $0.4 - 25.7$ $\mu $T. The authors also quote a limit of 352 sec for the case ${{\mathit B}^{\,'}}$ = 0 T.
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4
The ${{\mathit B}}$ field was set to (0.09, 0.12, 0.21) G. Limits on oscillation time are valid for any mirror field ${{\mathit B}^{\,'}}$ in ($0.08 - 0.17$) G, and for aligned fields ${{\mathit B}}$ and ${{\mathit B}^{\,'}}$. For larger values of ${{\mathit B}^{\,'}}$, the limits are significantly reduced.
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5
Losses of neutrons due to oscillations to mirror neutrons would be maximal when the magnetic fields ${{\mathit B}}$ and ${{\mathit B}^{\,'}}$ in the two worlds were equal. Hence the scan over ${{\mathit B}}$ by ALTAREV 2009A: the limit applies for any ${{\mathit B}^{\,'}}$ over the given range. At ${{\mathit B}^{\,'}}$ = 0, the limit is 141 s (95$\%$ CL).
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