Polarization Transfer in 4He(e-vector,e[prime]p-vector)3H
Polarization transfer in quasi-elastic nucleon knockout is sensitive to the properties of the nucleon in the nuclear medium, including possible modification of the nucleon form factor and/or spinor. In our recently completed experiment E03-104 at Jefferson Lab we measured the proton recoil polarization in the 4He(e-vector,e[prime]p-vector)3H reaction at a Q2 of 0.8 (GeV/c)2 and 1.3 (GeV/c)2 with unprecedented precision. These data complement earlier data between 0.4 and 2.6 (GeV/c)2 from both Mainz and Jefferson Lab, in which the measured ratio of polarization-transfer coefficients differs from a fully relativistic DWIA calculation. Preliminary results hint at a possible unexpected Q2 dependence in the polarization transfer coefficient ratio. Final analysis will help constrain FSI models
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA
- Sponsoring Organization:
- USDOE - Office of Science (SC)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 921066
- Report Number(s):
- JLAB-PHY-07-753; DOE/OR/23177-0247
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Vol. 947
- Country of Publication:
- United States
- Language:
- English
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