Pendellösung Interferometric Measurement of the Neutron Charge Radius and Constraints on BSM Forces

ORAL

Abstract

Pendellösung interference occurs between internal neutron wave states in a Bragg-diffracting crystal. The absolute phase of the interference fringes is directly related to the neutron-crystalline potential. Recent measurements of silicon Bragg reflections with Miller indices (111), (220), and (400) have resulted in a determination of the neutron mean square charge radius of -0.1101 ± 0.0089 fm2 and placed limits on a Yukawa modification to gravity on atomic length scales. Further measurements of other Bragg reflections and crystal species can improve the precision of the charge radius measurement, as well as further constrain Beyond the Standard Model forces.

*This work was supported by The National Institute of Standards and Technology, the US Department of Energy (DOE) under grants 89243019SSC000025 and DE-FG02-97ER41042, and the National Science Foundation (NSF) under grant PHY-1307426.

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Publication: doi/10.1126/science.abc2794

Presenters

  • Benjamin Heacock

    • NIST

Authors

  • Benjamin Heacock

    • NIST

  • Takuhiro FUJIIE

    • Nagoya University

  • Robert W Haun

    • Laboratory for Atmospheric and Space Physics at CU Boulder
    • University of Maryland, College Park

  • Albert Henins

    • NIST

  • Katsuya Hirota

    • Nagoya University

  • Takuya Hosobata

    • RIKEN Center for Advanced Photonics
    • RIKEN

  • Michael G Huber

    • NIST

  • Masaaki Kitaguchi

    • Nagoya University

  • Dmitry A Pushin

    • University of Waterloo

  • Hirohiko Shimizu

    • Nagoya University

  • Masahiro Takeda

    • RIKEN

  • Robert Valdillez

    • North Carolina State University

  • Yutaka Yamagata

    • RIKEN Center for Advanced Photonics
    • RIKEN

  • Albert Young

    • North Carolina State University