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Measurement of the elastic magnetic form factor of (3)He at high momentum transfer. |
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| Authors: | I Nakagawa J Shaw S Churchwell X Jiang B Asavapibhop M C Berisso P E Bosted K Burchesky F Casagrande A Cichocki R S Hicks A Hotta T Kobayashi R A Miskimen G A Peterson S E Rock T Suda T Tamae W Turchinetz K Wang |
| Affiliation: | Laboratory of Nuclear Science, Tohoku University, Sendai 982-0826, Japan. |
| Abstract: | New electron scattering measurements have been made that extend data on the (3)He elastic magnetic form factor up to Q(2) = 42.6 fm(-2). These new data test theoretical conjectures regarding non-nucleonic effects in the three-body system. The very small cross sections, as low as 10(-40) cm(2)/sr, required the use of a high-pressure cryogenic gas target and a detector system with excellent background rejection capability. No existing theoretical calculation satisfactorily accounts for all the available data. |
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