Measurement of the elastic magnetic form factor of (3)He at high momentum transfer.
PHYSICAL REVIEW LETTERS 2001;
86:5446-5449. [PMID:
11415272 DOI:
10.1103/physrevlett.86.5446]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2000] [Revised: 03/19/2001] [Indexed: 05/23/2023]
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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