The double spin asymmetry of nitrogen in elastic and quasielastic kinematics from a solid ammonia dynamically polarized target

M. Friedman; J. Campbell; D. Day; D. W. Higinbotham; A. Sarty; G. Ron

doi:10.1016/j.nima.2019.162701

The double spin asymmetry of nitrogen in elastic and quasielastic kinematics from a solid ammonia dynamically polarized target

M. Friedman^*, J. Campbell, D. Day, D. W. Higinbotham, A. Sarty, G. Ron

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Solid ammonia (NH₃) is commonly used as a dynamically polarized proton target for electron and muon scattering cross-section asymmetry measurements. As spin 1⁺ particles, the ¹⁴N nuclei in the target are also polarized and contribute a non-trivial asymmetry background that should be addressed. We describe here a method to extract the nitrogen contribution to the asymmetry, and report the cross-section asymmetries of electron–nitrogen scattering at beam energies of E=1.7 GeV and E=2.2 GeV, and momentum transfer of Q²=0.023−0.080 GeV².

Original language	English
Article number	162701
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	946
DOIs	https://doi.org/10.1016/j.nima.2019.162701
State	Published - 1 Dec 2019

Bibliographical note

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

DNP
DSA
Nitrogen asymmetry
Proton form factor

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10.1016/j.nima.2019.162701

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Friedman, M., Campbell, J., Day, D., Higinbotham, D. W., Sarty, A., & Ron, G. (2019). The double spin asymmetry of nitrogen in elastic and quasielastic kinematics from a solid ammonia dynamically polarized target. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 946, Article 162701. https://doi.org/10.1016/j.nima.2019.162701

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title = "The double spin asymmetry of nitrogen in elastic and quasielastic kinematics from a solid ammonia dynamically polarized target",

abstract = "Solid ammonia (NH3) is commonly used as a dynamically polarized proton target for electron and muon scattering cross-section asymmetry measurements. As spin 1+ particles, the 14N nuclei in the target are also polarized and contribute a non-trivial asymmetry background that should be addressed. We describe here a method to extract the nitrogen contribution to the asymmetry, and report the cross-section asymmetries of electron–nitrogen scattering at beam energies of E=1.7 GeV and E=2.2 GeV, and momentum transfer of Q2=0.023−0.080 GeV2.",

keywords = "DNP, DSA, Nitrogen asymmetry, Proton form factor",

author = "M. Friedman and J. Campbell and D. Day and Higinbotham, {D. W.} and A. Sarty and G. Ron",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = dec,

day = "1",

doi = "10.1016/j.nima.2019.162701",

language = "אנגלית",

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Friedman, M, Campbell, J, Day, D, Higinbotham, DW, Sarty, A & Ron, G 2019, 'The double spin asymmetry of nitrogen in elastic and quasielastic kinematics from a solid ammonia dynamically polarized target', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 946, 162701. https://doi.org/10.1016/j.nima.2019.162701

The double spin asymmetry of nitrogen in elastic and quasielastic kinematics from a solid ammonia dynamically polarized target. / Friedman, M.; Campbell, J.; Day, D. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 946, 162701, 01.12.2019.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - The double spin asymmetry of nitrogen in elastic and quasielastic kinematics from a solid ammonia dynamically polarized target

AU - Friedman, M.

AU - Campbell, J.

AU - Day, D.

AU - Higinbotham, D. W.

AU - Sarty, A.

AU - Ron, G.

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Solid ammonia (NH3) is commonly used as a dynamically polarized proton target for electron and muon scattering cross-section asymmetry measurements. As spin 1+ particles, the 14N nuclei in the target are also polarized and contribute a non-trivial asymmetry background that should be addressed. We describe here a method to extract the nitrogen contribution to the asymmetry, and report the cross-section asymmetries of electron–nitrogen scattering at beam energies of E=1.7 GeV and E=2.2 GeV, and momentum transfer of Q2=0.023−0.080 GeV2.

AB - Solid ammonia (NH3) is commonly used as a dynamically polarized proton target for electron and muon scattering cross-section asymmetry measurements. As spin 1+ particles, the 14N nuclei in the target are also polarized and contribute a non-trivial asymmetry background that should be addressed. We describe here a method to extract the nitrogen contribution to the asymmetry, and report the cross-section asymmetries of electron–nitrogen scattering at beam energies of E=1.7 GeV and E=2.2 GeV, and momentum transfer of Q2=0.023−0.080 GeV2.

KW - DNP

KW - DSA

KW - Nitrogen asymmetry

KW - Proton form factor

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U2 - 10.1016/j.nima.2019.162701

DO - 10.1016/j.nima.2019.162701

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AN - SCOPUS:85072215557

SN - 0168-9002

VL - 946

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

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

M1 - 162701

ER -

Friedman M, Campbell J, Day D, Higinbotham DW, Sarty A, Ron G. The double spin asymmetry of nitrogen in elastic and quasielastic kinematics from a solid ammonia dynamically polarized target. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2019 Dec 1;946:162701. doi: 10.1016/j.nima.2019.162701

The double spin asymmetry of nitrogen in elastic and quasielastic kinematics from a solid ammonia dynamically polarized target

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