Average CsI Neutron Density Distribution from COHERENT Data

被引：97

作者：

Cadeddu, M. ^{[1
,2
]}

Giunti, C. ^{[3
]}

Li, Y. F. ^{[4
,5
]}

Zhang, Y. Y. ^{[5
]}

机构：

[1] Univ Cagliari, Dipartimento Fis, Complesso Univ Monserrato SP Sestu Km 0-700, I-09042 Cagliari, Italy

[2] INFN, Sez Cagliari, Complesso Univ Monserrato SP Sestu Km 0-700, I-09042 Cagliari, Italy

[3] INFN, Sez Torino, Via P Giuria 1, I-10125 Turin, Italy

[4] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[5] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 120卷 / 07期

基金：

中国国家自然科学基金;

关键词：

STATE CHARGE RADII; EFFECTIVE FORCES; NUCLEI; PARAMETRIZATION; SCATTERING;

D O I：

10.1103/PhysRevLett.120.072501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the coherent elastic neutrino-nucleus scattering data of the COHERENT experiment, we determine for the first time the average neutron rms radius of Cs-133 and I-127. We obtain the practically model-independent value R-n = 5.5(-1.1)(+0.9) 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.

引用

页数：6

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