Polarization Transfer in Elastic Electron Scattering from Nucleons and Deuterons*
نویسنده
چکیده
We present a description, including relevant formulas and numerical estimates, of a set of polarization transfer experiments which appear to offer a feasible way to a) separate the deuteron charge and quadrupole form factors and b)measure the neutron and proton electric form factors. The experiments require a 2 to 4 GeV high-intensity, high-duty factor, longitudinally polarized electron beam, and require that the polarization of the recoiling hadron be measured in a second, analyzing, scattering. -The relevant asymmetries are fairly large, and our calculations show that they are sensitive to different models.obtained from existing data. Attention is called to the fact that the proposed deuteron measurements will require new 10% measurements of vector and tensor analyzing powers of deuterons with kinetic energy from 150 to 450 MeV. (Submitted to Phys. Rev. C) * Work supported in part by the Department of Energy, contract DE-AC0376SF00515 and by the National Science Foundation Grants PHY78-09378 and PHYi'9-19071. t Permanent Address: Stanford Linear Accelerator Center Stanford University, Stanford, California 94305
منابع مشابه
Tensor polarization in elastic electron-deuteron scattering in the momentum transfer range 3.8 <= Q <= 4.6 fm-1.
The tensor polarization of the recoil deuteron in elastic electron-deuteron scattering has been measured at the Bates Linear Accelerator Center at three values of four-momentum transfer, Q = 3.78, 4.22, and 4.62 fm-', corresponding to incident electron energies of 653, 755, and 853 MeV. The scattered electrons and the recoil deuterons were detected in coincidence. The recoil deuterons were tran...
متن کاملTensor Polarization of the Deuteron at High Momentum Transfer in Elastic
The measurement of deuteron tensor polarization using (e, d) elastic scattering was performed in Hall C, Jefferson Lab by the t20 collaboration at four-momentum transfers of 4.10, 4.46, 5.08, 5.48, 6.23 and 6.65 fm 1 . The scattered electrons were detected by the High Momentum Spectrometer, and a specially designed magnetic channel was used to detect deuterons in coincidence. The polarization o...
متن کاملMeasurement of the Proton Form Factor Ratio GE/GM from Double Spin Asymmetries
Detailed study of the nucleons is very important to understand the nucleus. Electron-Proton scattering is the best tool to probe the nucleus and hence deep into it. In the One-Photon exchange (Born) approximation, the structure of the nucleon characterized by electric and magnetic form factors, GE(Q ) and GM(Q ), which depend only on momentum transfer squared, Q. At Q=0, the proton form factors...
متن کاملNucleon polarization in deuteron electrodisintegration.
Outgoing nucleon polarization in exclusive deuteron electrodisintegration is studied at the quasi-elastic peak in the standard theory with emphasis on the effect of nucleonic and pionic relativistic corrections. The cases of polarized beam or/and polarized target are considered. Sizeable relativistic effects are pointed out in several polarization components. The sensitivity of nucleon polariza...
متن کاملNucleon Compton Scattering with Two Space–like Photons
We calculated two–photon exchange effects for elastic electron–proton scattering at high momentum transfers. The corresponding nucleon Compton amplitude is defined by two space–like virtual photons that appear to have significant virtualities. We make predictions for a) a single–spin beam asymmetry, and b) a single–spin target asymmetry or recoil proton polarization caused by an unpolarized ele...
متن کامل