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Title: Constraining spacetime nonmetricity with neutron spin rotation in liquid 4 He

General spacetime nonmetricity coupled to neutrons is studied. In this context, it is shown that certain nonmetricity components can generate a rotation of the neutron's spin. Available data on this effect obtained from slow-neutron propagation in liquid helium are then used to constrain isotropic nonmetricity components at the level of 10 -22GeV. These results represent the first limit on the nonmetricity ζ( 6) 2S 000 parameter as well as the first measurement of nonmetricity inside matter.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Indiana Univ., Bloomington, IN (United States). Center for Spacetime Symmetries; Leibniz Univ., Hannover (Germany)
  2. Indiana Univ., Bloomington, IN (United States). Physics Dept., Center for Spacetime Symmetries and Center for Exploration of Energy and Matter
  3. Indiana Univ., Bloomington, IN (United States). Center for Spacetime Symmetries; North China Electric Power Univ., Beijing (China). Dept. of Mathematics and Physics
  4. Indiana Univ., Bloomington, IN (United States). Physics Dept.
Publication Date:
Grant/Contract Number:
sc0010120; PHY-1614545; 11605056
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 772; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Indiana Univ., Bloomington, IN (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); National Science Foundation (NSF); National Science Foundation of China; Chinese Scholarship Council
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1437718
Alternate Identifier(s):
OSTI ID: 1424584

Lehnert, Ralf, Snow, W. M., Xiao, Zhi, and Xu, Rui. Constraining spacetime nonmetricity with neutron spin rotation in liquid 4 He. United States: N. p., Web. doi:10.1016/j.physletb.2017.07.059.
Lehnert, Ralf, Snow, W. M., Xiao, Zhi, & Xu, Rui. Constraining spacetime nonmetricity with neutron spin rotation in liquid 4 He. United States. doi:10.1016/j.physletb.2017.07.059.
Lehnert, Ralf, Snow, W. M., Xiao, Zhi, and Xu, Rui. 2017. "Constraining spacetime nonmetricity with neutron spin rotation in liquid 4 He". United States. doi:10.1016/j.physletb.2017.07.059.
@article{osti_1437718,
title = {Constraining spacetime nonmetricity with neutron spin rotation in liquid 4 He},
author = {Lehnert, Ralf and Snow, W. M. and Xiao, Zhi and Xu, Rui},
abstractNote = {General spacetime nonmetricity coupled to neutrons is studied. In this context, it is shown that certain nonmetricity components can generate a rotation of the neutron's spin. Available data on this effect obtained from slow-neutron propagation in liquid helium are then used to constrain isotropic nonmetricity components at the level of 10-22GeV. These results represent the first limit on the nonmetricity ζ(6)2S000 parameter as well as the first measurement of nonmetricity inside matter.},
doi = {10.1016/j.physletb.2017.07.059},
journal = {Physics Letters. Section B},
number = C,
volume = 772,
place = {United States},
year = {2017},
month = {9}
}