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Dive into the research topics where Donald Rich is active.

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Featured researches published by Donald Rich.


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2000

Measurement of the parity violating asymmetry Aγ in n→+p→d+γ

W.M. Snow; Anatoliy V. Bazhenov; C.S Blessinger; J. D. Bowman; T. E. Chupp; Kevin Patrick Coulter; S. J. Freedman; B. K. Fujikawa; Thomas R. Gentile; Geoffrey L. Greene; G. L. Hansen; Gary E. Hogan; S. Ishimoto; Gordon L. Jones; J. N. Knudson; E. Kolomenski; S. K. Lamoreaux; Mark Bancroft Leuschner; A. Masaike; Y. Masuda; Y. Matsuda; G. L. Morgan; Kimio Morimoto; C. L. Morris; H. Nann; S. I. Penttilä; A. Pirozhkov; V.R. Pomeroy; Donald Rich; Anatolii P. Serebrov

The weak pion-nucleon coupling constant H{sub {pi}}{sup 1} remains poorly determined, despite many years of effort. The recent measurement of the {sup 133}Cs anapole moment has been interpreted to give a value of H{sub {pi}}{sup 1} almost an order of magnitude larger than the limit established in the {sup 18}F parity doublet experiments. A measurement of the gamma ray directional asymmetry A{sub {gamma}} for the capture of polarized neutrons by hydrogen has been proposed at Los Alamos National Laboratory. This experiment will determine H{sub {pi}}{sup 1} independent of nuclear structure effects. However, since the predicted asymmetry is small, A{sub {gamma}} {approximately} 5 x 10{sup {minus}8}, systematic effects must be reduced to < 5 x 10{sup {minus}9}. The design of the experiment will is presented, with an emphasis on the techniques used for controlling systematic errors.


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1998

Neutron polarizers based on polarized 3he

C D. Keith; T C. Black; Xiang Fei; M. Flamini; Thomas R. Gentile; Gordon L. Jones; Donald Rich; W.M. Snow; Alan K. Thompson; F. E. Wietfeldt


Physical Review C | 2004

Neutron cross sections for 3He at epithermal energies

Christopher Douglas Keith; Zema Chowdhuri; Donald Rich; W. Mike Snow; J. David Bowman; S. L. Penttila; D. C. Smith; Mark Bancroft Leuschner; Vance Reid Pomeroy; Gordon Lyman Jones; E. I. Sharapov


Archive | 1997

Measurement of the neutron total cross section of ^3He in the energy range 0.1--500 eV

Christopher Douglas Keith; Zema Chowdhuri; Donald Rich; W. M. Snow; J. David Bowman; S. I. Penttilä; Debbie Smith; Mark Bancroft Leuschner; Vance Reid Pomeroy; Gordon Lyman Jones; E. O. Sharapov


Physical Review C | 2004

Neutron cross sections forHe3at epithermal energies

Christopher Douglas Keith; Zema Chowdhuri; Donald Rich; W. M. Snow; J. D. Bowman; S. L. Penttilä; D. A. Smith; Mark Bancroft Leuschner; Vance Reid Pomeroy; G. L. Jones; E. I. Sharapov


Archive | 2001

Neutron polarizers based on spin-exchange optical pumping of 3He at low pressures

Donald Rich; Thomas R. Gentile; T. J. Smith; Alan K. Thompson; Gordon Lyman Jones; Thad G. Walker; Bien Chann


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2000

Measurement of the parity violating asymmetry A ? in n ? + p? d+ ?

W. Mike Snow; Anatoliy V. Bazhenov; C.S Blessinger; J. David Bowman; Timothy E. Chupp; Kevin Patrick Coulter; S. J. Freedman; B. K. Fujikawa; Thomas R. Gentile; Geoffrey L. Greene; G. L. Hansen; Gary E. Hogan; S. Ishimoto; Gordon L. Jones; J. N. Knudson; E. Kolomenski; S. K. Lamoreaux; Mark Bancroft Leuschner; A. Masaike; Y. Masuda; Y. Matsuda; G. L. Morgan; Kimio Morimoto; C. L. Morris; H. Nann; S. I. Penttilä; A. Pirozhkov; V.R. Pomeroy; Donald Rich; Anatolii P. Serebrov


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1999

Measurement of the parity violating asymmetry Agamma in nvec +p-->d+gamma

W. Mike Snow; Anatoliy V. Bazhenov; Christopher S Blessinger; J. David Bowman; Timothy E. Chupp; Kevin Patrick Coulter; S. J. Freedman; B. K. Fujikawa; Thomas R. Gentile; Geoffrey L. Greene; Gary Hansen; Gary E. Hogan; S. Ishimoto; Gordon Lyman Jones; J. N. Knudson; E. Kolomenski; S. K. Lamoreaux; Mark Bancroft Leuschner; A. Masaike; Y. Masuda; Y. Matsuda; G. L. Morgan; Kimio Morimoto; C. L. Morris; H. Nann; S. I. Penttilä; A. Pirozhkov; Vance Reid Pomeroy; Donald Rich; Anatolii P. Serebrov


Archive | 1999

Measurement of the parity violating asymmetry A{sub γ} in {rvec n}+pd+γ

Wesley Scott Wilburn; J. David Bowman; Geoffrey L. Greene; G. C. Hogan; J. N. Knudson; Steve Keith Lamoreaux; G. L. Morgan; Christopher L. Morris; S. I. Penttilauml; Debbie Smith; T. B. Smith; V. W. Yuan; E. Kolomenski; A. Pirozhkov; Anatolii P. Serebrov; Gary Hansen; H. Nann; Donald Rich; W. M. Snow; Kevin Patrick Coulter; Robert C. Welsh; John N. Zerger; B. K. Fujikawa; Gordon Lyman Jones; F. E. Wietfeldt; Y. Masuda; K. Morimoto; Vance Reid Pomeroy; Yasuhiro H. Matsuda


Archive | 1999

Absolute Measurement of the Polarization of Cold Neutron Beams

William Michael Snow; Donald Rich; J. David Bowman; S. I. Penttilä; Gordon Lyman Jones; Alan K. Thompson; Jeffrey S. Nico; Maynard S. Dewey; Fred E. Wietfeldt; Mark Bancroft Leuschner

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W. M. Snow

Indiana University Bloomington

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J. David Bowman

Los Alamos National Laboratory

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S. I. Penttilä

Oak Ridge National Laboratory

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Thomas R. Gentile

National Institute of Standards and Technology

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Alan K. Thompson

National Institute of Standards and Technology

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J. N. Knudson

Los Alamos National Laboratory

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