Ultra cold neutrons cooling during its long dwelling in a trap
Bondarenko L., Geltenbort P., Korobkina E., Morozov V., Panin Yu., Steyerl A.
PACS: 25.40.Fq, 25.90.+k
We have observed cooling of ultra cold neutrons during its long dwelling in a trap with the probability estimated by 1 · 10-6/reflection and with the energy transfer about 3 neV.