For authors
Submission status

Archive (English)
   Volumes 81-92
   Volumes 41-60
   Volumes 21-40
   Volumes 1-20
   Volumes 61-80
      Volume 80
      Volume 79
      Volume 78
      Volume 77
      Volume 76
      Volume 75
      Volume 74
      Volume 73
      Volume 72
      Volume 71
      Volume 70
      Volume 69
      Volume 68
      Volume 67
      Volume 66
      Volume 65
      Volume 64
      Volume 63
      Volume 62
      Volume 61
VOLUME 80 | ISSUE 11 | PAGE 803
Search for P-odd asymmetry of prompt neutrons emission in 235U fission induced by cold polarized neutrons
E. V. Brakhman, G. V. Danilyan, A. V. Fedorov, I. L. Karpikhin, V. A. Krakhotin, V. S. Pavlov, R. Golub+, E. I. Korobkina+, T. Wilpert+
State Scientific Center of Russian Federation - Institute for Theoretical and Experimental Physics, 117218 Moscow, Russia
+Berlin Neutron Scattering Center of Hahn-Meitner Institute, D-14 109 Berlin

PACS: 24.70.+s, 24.80.+y, 25.85.Ec
The preliminary result of the P-odd asymmetry of prompt neutron emission in 235U fission induced by polarized cold neutrons is a = (2.7 \pm 0.8)\cdot10^{-5}. Only the scission neutrons can show such asymmetry, whereas neutrons emitted by excited fragments are the unavoidable background, which suppress the sought asymmetry. The P-odd asymmetry of light fragment emission for 235U is equal to (8.4 \pm 0.6)\cdot10^{-4}. Assuming that last figure defines the parity mixture of fissile nucleus then the suppression factor is equal approximately to 3.

Download PS file (GZipped, 82K)  |  Download PDF file (156.5K)