Pendellösung interferometry probes the neutron charge radius, lattice dynamics, and fifth forces.

Autor: Heacock B; National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.; Department of Physics, North Carolina State University, Raleigh, NC 27695, USA.; Triangle Universities Nuclear Laboratory, Durham, NC 27708, USA., Fujiie T; Department of Physics, Nagoya University, Nagoya 464-8602, Japan.; RIKEN Center for Advanced Photonics, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan., Haun RW; Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742, USA.; Department of Physics and Engineering Physics, Tulane University, New Orleans, LA 70118, USA., Henins A; National Institute of Standards and Technology, Gaithersburg, MD 20899, USA., Hirota K; Department of Physics, Nagoya University, Nagoya 464-8602, Japan.; High Energy Accelerator Research Organization, Tsukuba 305-0801, Japan., Hosobata T; RIKEN Center for Advanced Photonics, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan., Huber MG; National Institute of Standards and Technology, Gaithersburg, MD 20899, USA., Kitaguchi M; Department of Physics, Nagoya University, Nagoya 464-8602, Japan.; Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602, Japan., Pushin DA; Institute for Quantum Computing, University of Waterloo, Waterloo, ON N2L3G1, Canada.; Department of Physics and Astronomy, University of Waterloo, Waterloo, ON, Canada, N2L3G1., Shimizu H; Department of Physics, Nagoya University, Nagoya 464-8602, Japan., Takeda M; RIKEN Center for Advanced Photonics, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan., Valdillez R; Department of Physics, North Carolina State University, Raleigh, NC 27695, USA.; Triangle Universities Nuclear Laboratory, Durham, NC 27708, USA., Yamagata Y; RIKEN Center for Advanced Photonics, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan., Young AR; Department of Physics, North Carolina State University, Raleigh, NC 27695, USA.; Triangle Universities Nuclear Laboratory, Durham, NC 27708, USA.
Jazyk: angličtina
Zdroj: Science (New York, N.Y.) [Science] 2021 Sep 10; Vol. 373 (6560), pp. 1239-1243. Date of Electronic Publication: 2021 Sep 09.
DOI: 10.1126/science.abc2794
Abstrakt: Structure factors describe how incident radiation is scattered from materials such as silicon and germanium and characterize the physical interaction between the material and scattered particles. We used neutron Pendellösung interferometry to make precision measurements of the (220) and (400) neutron-silicon structure factors and achieved a factor-of-four improvement in the (111) structure factor uncertainty. These data provide measurements of the silicon Debye-Waller factor at room temperature and the mean square neutron charge radius r n 2 = − 0.1101 ± 0.0089 square femtometers. Combined with existing measurements of the Debye-Waller factor and charge radius, the measured structure factors also improve constraints on the strength of a Yukawa modification to gravity by an order of magnitude over the 20 picometer–to–10 nanometer length scale range.
Databáze: MEDLINE
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