Measurement of the Induced Proton Polarization P{sub n} in the {sup 12}C(e,e{prime}{rvec p}) Reaction

Journal Article · Thu Jan 01 04:00:00 EST 1998 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.80.456· OSTI ID:664602

Woo, R J; Finn, J M; Jones, M K; McIntyre, J I; Perdrisat, C F ^[1]; Barkhuff, D H; Lourie, R W; Milbrath, B D; Van Verst, S P ^[2]; Bertozzi, W; Dale, D; Dodson, G; Dow, K A; Farkhondeh, M; Gilad, S; Joo, K; Kowalski, S; Sarty, A J; Tieger, D; Tschalaer, C ; Turchinetz, W; Van Verst, S P; Warren, G A ^[3]; Chen, J P; Mitchell, J ^[4]; Epstein, M B; Margaziotis, D J ^[5]; Kelly, J J; Markowitz, P ^[6]; Madey, R ^[7]; Mertz, C ^[8]; Punjabi, V ^[9]; Rutt, P M ^[10]; Ulmer, P E; Weinstein, L ^[11]; Vellidis, C ^[12]

---

1. College of William and Mary, Williamsburg, Virginia 23185 (United States)
2. University of Virginia, Charlottesville, Virginia 22901 (United States)
3. Massachusetts Institute of Technology and Bates Linear Accelerator Center, Cambridge, Massachusetts 02139 (United States)
4. Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606 (United States)
5. California State University, Los Angeles, California 90032 (United States)
6. University of Maryland, College Park, Maryland 20742 (United States)
7. Kent State University, Kent, Ohio 44242 (United States)
8. Arizona State University, Tempe, Arizona 85287 (United States)
9. Norfolk State University, Norfolk, Virginia 23504 (United States)
10. Rutgers University, Piscataway, New Jersey 08855 (United States)
11. Old Dominion University, Norfolk, Virginia 23529 (United States)
12. University of Athens (Greece)

The first measurements of the induced proton polarization P{sub n} for the {sup 12}C( e,e{sup {prime}}{rvec p}) reaction are reported. The experiment was performed at quasifree kinematics for energy and momentum transfer ({omega},q){approx} (294 MeV, 756 MeV/{ital c}) and sampled a missing momentum range of 0{endash}250 MeV/{ital c}. The induced polarization arises from final-state interactions and for these kinematics is dominated by the real part of the spin-orbit optical potential. The distorted-wave impulse approximation provides good agreement with data for the 1p{sub 3/2} shell. The data for the continuum suggest that both the 1s{sub 1/2} shell and underlying scr(l){gt}1 configurations contribute. {copyright} {ital 1998} {ital The American Physical Society}

• DOE Contract Number: FG02-89ER40525; FG05-90ER40570
• OSTI ID: 664602
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 3 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CARBON 12 TARGET
DWBA
ELECTRON REACTIONS
ENERGY TRANSFER
FINAL-STATE INTERACTIONS
HELICITY
KNOCK-OUT REACTIONS
MOMENTUM TRANSFER
OPTICAL MODELS
POLARIZATION
PROTONS
QUASI-ELASTIC SCATTERING