First measurement of the near-threshold H-2((gamma)over-right-arrow,n)p analyzing power using a free-electron laser based gamma-ray source - art. no.061604

Authors
Schreiber, EC Canon, RS Crowley, BT Howell, CR Kelley, JH Litvinenko, VN Nelson, SO Park, SH Pinayev, IV Prior, RM Sabourov, K Spraker, M Tornow, W Wu, Y Wulf, EA Weller, HR
Citation
Ec. Schreiber et al., First measurement of the near-threshold H-2((gamma)over-right-arrow,n)p analyzing power using a free-electron laser based gamma-ray source - art. no.061604, PHYS REV C, 6106(6), 2000, pp. 1604
Citations number
11
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C-NUCLEAR PHYSICS
ISSN journal
05562813 → ACNP
Volume
6106
Issue
6
Year of publication
2000
Database
ISI
SICI code
0556-2813(200006)6106:6<1604:FMOTNH>2.0.ZU;2-Z
Abstract
The first measurement of the H-2(<(gamma)over right arrow>,n)p analyzing po wer near threshold has been performed using the High-Intensity Gamma-ray So urce (HIGS) at the Duke Free-Electron Laser Laboratory. A 3.58 MeV gamma-ra y beam having an energy resolution of 2.5% and 100% linear polarization was incident on an active C6D12 target. Outgoing neutrons were detected parall el and perpendicular to the plane of gamma-ray polarization at a lab angle of 150 degrees. The experimentally determined analyzing power provides a se nsitive measurement of the relative E1 and M1 contributions to the total cr oss section.