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Polarized neutron beam properties for measuring parity-violating spin rotation in liquid 4He

Publication ,  Journal Article
Micherdzinska, AM; Bass, CD; Bass, TD; Gan, K; Luo, D; Markoff, DM; Mumm, HP; Nico, JS; Opper, AK; Sharapov, EI; Snow, WM; Swanson, HE; Zhumabekova, V
Published in: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
March 1, 2011
Published version (DOI)

Measurements of parity-violating neutron spin rotation can provide insight into the poorly understood nucleonnucleon weak interaction. Because the expected rotation angle per unit length is small (10-7 rad/m), several properties of the polarized cold neutron beam phase space and the neutron optical elements of the polarimeter must be measured to quantify possible systematic effects. This paper presents (1) an analysis of a class of possible systematic uncertainties in neutron spin rotation measurements associated with the neutron polarimetry, and (2) measurements of the relevant neutron beam properties (intensity distribution, energy spectrum, and the product of the neutron beam polarization and the analyzing power as a function of the beam phase space properties) on the NG-6 cold neutron beam-line at the National Institute of Standards and Technology Center for Neutron Research. We conclude that the phase space nonuniformities of the polarimeter in this beam are small enough that a parity-violating neutron spin rotation measurement in n- 4He with systematic uncertainties at the 10-7 rad/m level is possible. © 2010 Elsevier B.V. All rights reserved.

Duke Scholars

Diane M Markoff
Author Diane M Markoff Physics

Published In

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

DOI

10.1016/j.nima.2010.11.105

ISSN

0168-9002

Publication Date

March 1, 2011

Volume

631

Issue

1

Start / End Page

80 / 89

Related Subject Headings

  • Nuclear & Particles Physics
  • 5106 Nuclear and plasma physics
  • 0299 Other Physical Sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

Citation

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Micherdzinska, A. M., Bass, C. D., Bass, T. D., Gan, K., Luo, D., Markoff, D. M., … Zhumabekova, V. (2011). Polarized neutron beam properties for measuring parity-violating spin rotation in liquid 4He. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 631(1), 80–89. https://doi.org/10.1016/j.nima.2010.11.105
Micherdzinska, A. M., C. D. Bass, T. D. Bass, K. Gan, D. Luo, D. M. Markoff, H. P. Mumm, et al. “Polarized neutron beam properties for measuring parity-violating spin rotation in liquid 4He.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 631, no. 1 (March 1, 2011): 80–89. https://doi.org/10.1016/j.nima.2010.11.105.
Micherdzinska AM, Bass CD, Bass TD, Gan K, Luo D, Markoff DM, et al. Polarized neutron beam properties for measuring parity-violating spin rotation in liquid 4He. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 Mar 1;631(1):80–9.
Micherdzinska, A. M., et al. “Polarized neutron beam properties for measuring parity-violating spin rotation in liquid 4He.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 631, no. 1, Mar. 2011, pp. 80–89. Scopus, doi:10.1016/j.nima.2010.11.105.
Micherdzinska AM, Bass CD, Bass TD, Gan K, Luo D, Markoff DM, Mumm HP, Nico JS, Opper AK, Sharapov EI, Snow WM, Swanson HE, Zhumabekova V. Polarized neutron beam properties for measuring parity-violating spin rotation in liquid 4He. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2011 Mar 1;631(1):80–89.
Journal cover image

Published In

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

DOI

10.1016/j.nima.2010.11.105

ISSN

0168-9002

Publication Date

March 1, 2011

Volume

631

Issue

1

Start / End Page

80 / 89

Related Subject Headings

  • Nuclear & Particles Physics
  • 5106 Nuclear and plasma physics
  • 0299 Other Physical Sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences