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

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.
  1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
JLAB-PHY-15-2153; DOE/OR/23177-3585; arXiv:1510.04592
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: CIPANP 2015, Vail, CO, May 19-24, 2015
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States