Average CsI neutron density distribution from COHERENT data
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Pre-published on:
August 23, 2019
Published on:
December 12, 2019
Abstract
Using the coherent elastic neutrino-nucleus scattering data of the COHERENT experiment, we determine for the first time the average neutron rms radius of $^{133}\textrm{Cs}$ and $^{127}\textrm{I}$. We obtain the practically model-independent value $R_{n}=5.5{}^{+0.9}_{-1.1}\,\textrm{fm}$ using the symmetrized Fermi and Helm form factors. We also point out that the COHERENT data show a $2.3\sigma$ evidence of the nuclear structure suppression of the full coherence.
DOI: https://doi.org/10.22323/1.341.0144
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.