Measurement of the elastic magnetic form factor of He-3 at high momentum transfer

Authors
Nakagawa, I Shaw, J Churchwell, S Jiang, X Asavapibhop, B Berisso, MC Bosted, PE Burchesky, K Casagrande, F Cichocki, A Hicks, RS Hotta, A Kobayashi, T Miskimen, RA Peterson, GA Rock, SE Suda, T Tamae, T Turchinetz, W Wang, K
Citation
I. Nakagawa et al., Measurement of the elastic magnetic form factor of He-3 at high momentum transfer, PHYS REV L, 86(24), 2001, pp. 5446-5449
Citations number
27
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
86
Issue
24
Year of publication
2001
Pages
5446 - 5449
Database
ISI
SICI code
0031-9007(20010611)86:24<5446:MOTEMF>2.0.ZU;2-G
Abstract
New electron scattering measurements have been made that extend data on the He-3 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, req uired the use of a high-pressure cryogenic gas target and a detector system with excellent background rejection capability. No existing theoretical ca lculation satisfactorily accounts fur all the available data.