Outlook for Helicity Suppressed Transverse Asymmetry Measurements in Bhabha Scattering at Jefferson Lab
ORAL
Abstract
The transverse asymmetries in Bhabha scattering have been poorly explored, yet are a way to constrain Beyond Standard Model sources of single- and double-helicity violation. Jefferson Lab is a fixed target, electron beam facility with a nominal 12 GeV maximum energy. The addition of a polarized e+ injector would allow charge asymmetry measurements in DVCS to learn about GPDs, search for a dark photon, determine the real part of two-photon exchange amplitudes in fundamental reactions such as elastic scattering and DIS, refine Coulomb corrections in scattering from high Z nuclei, and (my focus here) enable the measurement of several helicity-suppressed transverse asymmetries in Bhabha scattering for the first time. After a brief overview of the plans for a polarized e+ injector, I will discuss several helicity-suppressed transverse Bhabha asymmetries, discuss potential experiments that could take place in Hall C, and finally outline some 10-100 MeV scale measurements that could take place in the years before the e+ source is connected to the main accelerator.
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Presenters
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David Joseph Mack
Jefferson Lab/Jefferson Science Associates
Authors
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David Joseph Mack
Jefferson Lab/Jefferson Science Associates