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Title: Positrons at JLab advancing nuclear science in Hall B

Abstract

In this talk I address two high impact physics programs that require the use of polarized and unpolarized positron beams in addition to using electron beams of the same energy. First, I address what will be gained from using positron beams in addition to electron beams in the extraction of the Compton Form Factors (CFFs) and generalized parton distributions (GPDs) from Deeply Virtual Compton Scattering (DVCS) on a proton target. Furthermore a second high impact science program I discuss an experimental scenario using unpolarized positrons to measure elastic scattering on protons in an effort to determine definitively the 2-photon exchange contributions in order to resolve a longstanding discrepancy in the determination of the proton’s electric and magnetic form factors.

Authors:
ORCiD logo [1]
  1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1462481
Report Number(s):
JLAB-PHY-18-2635; DOE/OR/23177-4336
Journal ID: ISSN 0094-243X; TRN: US1902184
Grant/Contract Number:  
AC05-06OR23177
Resource Type:
Accepted Manuscript
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1970; Conference: 2017 International Workshop on Physics with Positrons at Jefferson Lab(JPOS17), Newport News, VA (United States), 12-15 Sep 2017; Journal ID: ISSN 0094-243X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Burkert, Volker D. Positrons at JLab advancing nuclear science in Hall B. United States: N. p., 2018. Web. doi:10.1063/1.5040195.
Burkert, Volker D. Positrons at JLab advancing nuclear science in Hall B. United States. https://doi.org/10.1063/1.5040195
Burkert, Volker D. Fri . "Positrons at JLab advancing nuclear science in Hall B". United States. https://doi.org/10.1063/1.5040195. https://www.osti.gov/servlets/purl/1462481.
@article{osti_1462481,
title = {Positrons at JLab advancing nuclear science in Hall B},
author = {Burkert, Volker D.},
abstractNote = {In this talk I address two high impact physics programs that require the use of polarized and unpolarized positron beams in addition to using electron beams of the same energy. First, I address what will be gained from using positron beams in addition to electron beams in the extraction of the Compton Form Factors (CFFs) and generalized parton distributions (GPDs) from Deeply Virtual Compton Scattering (DVCS) on a proton target. Furthermore a second high impact science program I discuss an experimental scenario using unpolarized positrons to measure elastic scattering on protons in an effort to determine definitively the 2-photon exchange contributions in order to resolve a longstanding discrepancy in the determination of the proton’s electric and magnetic form factors.},
doi = {10.1063/1.5040195},
journal = {AIP Conference Proceedings},
number = ,
volume = 1970,
place = {United States},
year = {Fri May 25 00:00:00 EDT 2018},
month = {Fri May 25 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

FIGURE 1 FIGURE 1: The CLAS12 detector in Hall B. The detector was designed for inclusive, semi-inclusive, as well as exclusive processes such as DVCS. The construction and commissioning of the detector system was completed recently. CLAS12 is part of the DOE funded energy upgrade of the Jefferson Lab CEBAF accelerator frommore » 6 GeV to 12 GeV, and may play an important role in programs that make use of positron beams at Jefferson Lab..« less

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Works referenced in this record:

Measurement of the Two-Photon Exchange Contribution to the Elastic e ± p Scattering Cross Sections at the VEPP-3 Storage Ring
journal, February 2015


Observation of Exclusive Deeply Virtual Compton Scattering in Polarized Electron Beam Asymmetry Measurements
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Scaling Tests of the Cross Section for Deeply Virtual Compton Scattering
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Hard Two-Photon Contribution to Elastic Lepton-Proton Scattering Determined by the OLYMPUS Experiment
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journal, June 2005


Measurement of two-photon exchange effect by comparing elastic e ± p cross sections
journal, June 2017


Deeply virtual electroproduction of photons and mesons on the nucleon: Leading order amplitudes and power corrections
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Generalized parton distributions
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Impact Parameter Space Interpretation for Generalized Parton Distributions
journal, January 2003


Two-photon exchange in elastic electron–proton scattering
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Longitudinal Target-Spin Asymmetries for Deeply Virtual Compton Scattering
journal, January 2015


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journal, August 2006


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journal, November 2015


Unraveling hadron structure with generalized parton distributions
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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.