Reconsideration of the electron--neutron scattering length as measured by the scattering of thermal neutrons by noble gases

Journal Article · Sat Sep 01 04:00:00 EDT 1973 · Phys. Rev., D, v. 8, no. 5, pp. 1305-1307

DOI:https://doi.org/10.1103/PhysRevD.8.1305· OSTI ID:4382824

Krohn, V E; Ringo, G R

Our value for the electron-neutron scattering length has been corrected on the basis of new measurements of some neutron scattering lengths and now is (- 1.30 plus or minus 0.03) x 10/sup -16/ cm, which is 3% lower than our original result. (The equivalent figure in the Fermi convention is - 3630 plus or minus 70 eV and at q = 0, dG/sub En//dq/sup 2/ = 0.0189 plus or minus 0.0004 fm/sup 2/ .) A check on the worrisome possibility of an H/sub 2/ impurity in the scattering gases showed that this is quite unlikely to be a significant source of error. The difference bctween our result and the Munich measurement and also the Foldy calculation thus continues enexplained. (auth)

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439
• Sponsoring Organization: USDOE
• NSA Number: NSA-29-006135
• OSTI ID: 4382824
• Journal Information: Phys. Rev., D, v. 8, no. 5, pp. 1305-1307, Journal Name: Phys. Rev., D, v. 8, no. 5, pp. 1305-1307; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

*ELECTRON-NEUTRON INTERACTIONS-- SCATTERING LENGTHS
KRYPTON
N64110* --Physics (High Energy)--Particle Interactions & Properties (Experimental)--Electromagnetic
N68100 --Physics (Nuclear)--Neutron Interactions with Matter
SCATTERING
THERMAL NEUTRONS
XENON