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arXiv · 1510.04592

Electroweak Measurements of Neutron Densities in PREX and CREX at JLab, USA

Robert Michaels
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Abstract

Measurement of the parity-violating electron scattering asymmetry from ${}^{208}$Pb has demonstrated a new opportunity at Jefferson Lab to measure the weak charge distribution and hence pin down the neutron radius in nuclei in a relatively clean and model-independent way. This is because the Z boson of the weak interaction couples primarily to neutrons. We will describe the PREX and CREX experiments on ${}^{208}$Pb and ${}^{48}$Ca respectively. PREX-I ran in 2010, and CREX and a second run of PREX are currently in preparation.

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Robert Michaels. 2015-10-15. Electroweak Measurements of Neutron Densities in PREX and CREX at JLab, USA. https://arxiv.org/abs/1510.04592

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