Cross section of slow neutrons on parahydrogen
- 1 November 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 12 (5) , 1423-1427
- https://doi.org/10.1103/physrevc.12.1423
Abstract
The total cross section of slow neutrons on gaseous parahydrogen has been measured at several temperatures near 20 K and with pressures ranging from 250 to 750 Torr. A previous experiment had suggested that the cross section would exhibit a significant pressure dependence. However, no such pressure dependence was observed. The data give a value for the neutron-proton coherent scattering length of (-3.733±0.004) × cm, in agreement with the latest liquid mirror measurements.
Keywords
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