@article{13d349b39aa5456e9612f880bf5c70c1,
title = "Precision Determination of the Neutral Weak Form Factor of Ca 48",
abstract = "We report a precise measurement of the parity-violating (PV) asymmetry APV in the elastic scattering of longitudinally polarized electrons from Ca48. We measure APV=2668±106(stat)±40(syst) parts per billion, leading to an extraction of the neutral weak form factor FW(q=0.8733 fm-1)=0.1304±0.0052(stat)±0.0020(syst) and the charge minus the weak form factor Fch-FW=0.0277±0.0055. The resulting neutron skin thickness Rn-Rp=0.121±0.026(exp)±0.024(model) fm is relatively thin yet consistent with many model calculations. The combined CREX and PREX results will have implications for future energy density functional calculations and on the density dependence of the symmetry energy of nuclear matter.",
author = "{(CREX Collaboration)} and D. Adhikari and H. Albataineh and D. Androic and Aniol, {K. A.} and Armstrong, {D. S.} and T. Averett and {Ayerbe Gayoso}, C. and Barcus, {S. K.} and V. Bellini and Beminiwattha, {R. S.} and Benesch, {J. F.} and H. Bhatt and {Bhatta Pathak}, D. and D. Bhetuwal and B. Blaikie and J. Boyd and Q. Campagna and A. Camsonne and Cates, {G. D.} and Y. Chen and C. Clarke and Cornejo, {J. C.} and {Covrig Dusa}, S. and Dalton, {M. M.} and P. Datta and A. Deshpande and D. Dutta and C. Feldman and E. Fuchey and C. Gal and D. Gaskell and T. Gautam and M. Gericke and C. Ghosh and I. Halilovic and Hansen, {J. O.} and O. Hassan and F. Hauenstein and W. Henry and Horowitz, {C. J.} and C. Jantzi and S. Jian and S. Johnston and Jones, {D. C.} and S. Kakkar and S. Katugampola and C. Keppel and King, {P. M.} and King, {D. E.} and P. Souder",
note = "Funding Information: We thank the entire staff of JLab for their efforts to develop and maintain the polarized beam and the experimental apparatus and acknowledge the support of the U.S. Department of Energy, the National Science Foundation, and NSERC (Canada). We thank J. Piekarewicz, P. G. Reinhard, and X. Roca-Maza for RPA calculations of excited states and J. Erler and M. Gorchtein for calculations of radiative corrections. This material is based upon the work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics Contract No. DE-AC05-06OR23177. Publisher Copyright: {\textcopyright} 2022 American Physical Society. ",
year = "2022",
month = jul,
day = "22",
doi = "10.1103/PhysRevLett.129.042501",
language = "English (US)",
volume = "129",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "4",
}