STI Publications - View Publication Form #15396

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Publication Information
Title ELECTROPRODUCTION OF NEUTRAL PION OFF 4HE
Abstract Deeply virtual exclusive processes o¿er a unique opportunity to study the internal structure of the nucleon and nuclei. The goal of this work is to extract the beam-spin asymmetry in deeply virtual coherent neutral pion electroproduction, e^4He to e'^4He'pi^0, using the CLAS detector in the experimental Hall B at Thomas Jefferson National Accelerator Facility. The data were collected in 2009 with a 6 GeV longitudinally polarized electron beam impinging on a 30 cm long, 6 atm Helium-4 gaseous target. In order to ensure that the process is coherent, a new Radial Time Projection Chamber was used to detect and identify low energy recoil a-particles. The Beam Spin Asymmetry in the coherent deep exclusive regime was measured at Q^2 = 1.50 GeV^2, xB = 0.18 and -t = 0.14 GeV^2. The measured asymmetry has an amplitude of 10%+/-5% and has the opposite sign compared the asymmetry measured for pi^0 production on the proton.
Author(s) Bayram Torayev
Publication Date December 2016
Document Type Thesis
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Exp Nuclear Physics / Experimental Halls / Hall B
Funding Source Nuclear Physics (NP)
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-PHY-16-2460 OSTI Number: 1431178
LANL Number: Other Number: DOE/OR/23177-4394
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Thesis
Thesis Type PhD
Advisor Institution
1. Bueltmann, Stephen ODU
Attachments/Datasets/DOI Link
Document(s)
Torayev_thesis.pdf (STI Document)
Dataset(s) (none)
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