STI Publications - View Publication Form #13632

Back to Search Results Print
Publication Information
Title Beam Normal Single Spin Asymmetry in Forward Angle Inelastic Electron-Proton Scattering using the Q-Weak Apparatus
Abstract The Q-weak experiment in Hall-C at the Thomas Jefferson National Accelerator Facility has made the first direct measurement of the weak charge of the proton through the precision measurement of the parity-violating asymmetry in elastic electron-proton scattering at low momentum transfer. There is also a parity conserving Beam Normal Single Spin Asymmetry or transverse asymmetry (B_n) on H_2 with a sin(phi)-like dependence due to two-photon exchange. If the size of elastic B_n is a few ppm, then a few percent residual transverse polarization in the beam, combined with small broken azimuthal symmetries in the detector, would require a few ppb correction to the Q-weak data. As part of a program of B_n background studies, we made the first measurement of B_n in the N-to-Delta(1232) transition using the Q-weak apparatus. The final transverse asymmetry, corrected for backgrounds and beam polarization, was found to be B_n = 42.82 ± 2.45 (stat) ± 16.07 (sys) ppm at beam energy E
Author(s) Nuruzzaman Nuruzzaman
Publication Date December 2014
Document Type Thesis
Primary Institution Hampton University , Hampton, VA
Affiliation Exp Nuclear Physics / Experimental Halls / Hall C
Funding Source
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-PHY-14-1923 OSTI Number: 1190855
LANL Number: Other Number: DOE/OR/23177-3451
Associated with an experiment Yes
Experiment Number(s)
E08-016
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Thesis
Thesis Type PhD
Advisor Institution
1. Liguang Tang Hampton University
2. David Mack Jefferson Lab
Attachments/Datasets/DOI Link
Document(s)
Nur PhD Thesis.pdf (STI Document)
Dataset(s) (none)
Back to Search Results Print