Conveners
PWG - 2
- Eric Voutier (Université Paris-Saclay - CNRS/IN2P3/IJCLab)
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Amy Sy (Jefferson Lab)3/18/24, 2:00 PM
Degraded electron beams are electron beams with enlarged emittance due to multiple scattering in thin targets. This talk describes the effort to generate degraded electron beams in CEBAF to measure the machine acceptance and better understand the transport of large phase space beams, with first measurements expected later this year. We will also discuss the potential use of degraded electron...
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Raffaella De Vita (Jefferson Lab)3/18/24, 2:30 PM
Simulations of beam particle interaction in the target have been used to estimate the background affecting the experiment, optimize the detector configuration, and determine the maximum acceptable luminosity. Lessons learned from CLAS12 background simulation studies will be discussed.
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Juan Sebastian Alvarado (IJCLab)3/18/24, 3:00 PM
Deeply Virtual Compton Scattering (DVCS) is a privileged channel to study the structure of the nucleon as their experimental observables let us access information about Generalized Parton Distributions (GPDs). In general, the identification of DVCS events relies on the detection of only two final state particles as the kinematics of the third one can be reconstructed from conservation laws....
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David Mack (JLab)3/18/24, 4:00 PM
In Bhabha scattering, the virtual exchange of a dark boson would interfere with photon exchange to produce amplitude level effects in the yield and polarized-beam asymmetries. I will overview such resonant effects in half a dozen Bhabha scattering observables, then summarize which few may be appropriate for proposals that would still be competitive a decade from now.
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Xuangong Wang (University of Adelaide)3/18/24, 4:30 PM
We investigate the corrections to the beam asymmetries in parity-violating electron scatterings arising from charge symmetry violation, strange quark, and charm quark distributions. Based on the parton distributions from the NNPDF Collaboration, these corrections could lead to $(1$-$2)\%$ uncertainties in the extraction of the weak couplings $g^{eq}_{AV}$ and $g^{eq}_{VA}$, and as large as...
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Jan Bernauer (Stony Brook University / RBRC)3/18/24, 5:00 PM
The extraction of form factors, radii and related quantities have been
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an important focus of research in the last decades. The research
intensity has increased with the proton radius puzzle about a decade ago, and more recently with results on the gravitational form factors. But the field is much wider, including also weak form factors, other radii and a multitude of particles beyond the...