| Autor: |
C. D. Bowman, Yu. V. Safronov, Werner Tornow, Valery Shvetsov, E. I. Sharapov, B. G. Levakov, W.I. Furman, Sharon L. Stephenson, V. I. Litvin, A. Yu. Muzichka, E. P. Magda, G. V. Nekhaev, E. V. Lychagin, Bret E. Crawford, G. E. Mitchell, A. V. Strelkov, A. E. Lyzhin, C. R. Howell |
| Rok vydání: |
2002 |
| Předmět: |
|
| Zdroj: |
Journal of Physics G: Nuclear and Particle Physics. 28:2627-2641 |
| ISSN: |
0954-3899 |
| DOI: |
10.1088/0954-3899/28/10/308 |
| Popis: |
We propose to perform the first measurement of the neutron–neutron scattering cross section in the through-channel of the pulsed aperiodic reactor YAGUAR (Snezhinsk, Russia). Such a measurement directly determines the neutron–neutron scattering length, and by comparison with the proton–proton scattering length bears upon the issue of charge symmetry of the nuclear force. The proposed experimental set-up, as well as modelling of the neutron density and of the frequency of neutron–neutron collisions is described. Experimental results are reported on the formation and optimization of the thermal neutron field inside the through-channel of the reactor YAGUAR. The instantaneous value of 1.1 × 1018 cm−2 s−1 obtained for the thermal neutron flux density is large enough to perform the first direct neutron–neutron scattering length measurement. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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