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1
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Pattie RW, Callahan NB, Cude-Woods C, Adamek ER, Broussard LJ, Clayton SM, Currie SA, Dees EB, Ding X, Engel EM, Fellers DE, Fox W, Geltenbort P, Hickerson KP, Hoffbauer MA, Holley AT, Komives A, Liu CY, MacDonald SWT, Makela M, Morris CL, Ortiz JD, Ramsey J, Salvat DJ, Saunders A, Seestrom SJ, Sharapov EI, Sjue SK, Tang Z, Vanderwerp J, Vogelaar B, Walstrom PL, Wang Z, Wei W, Weaver HL, Wexler JW, Womack TL, Young AR, Zeck BA. Measurement of the neutron lifetime using a magneto-gravitational trap and in situ detection. Science 2018. [PMID: 29731449 DOI: 10.1126/science.aan8895,] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The precise value of the mean neutron lifetime, τn, plays an important role in nuclear and particle physics and cosmology. It is used to predict the ratio of protons to helium atoms in the primordial universe and to search for physics beyond the Standard Model of particle physics. We eliminated loss mechanisms present in previous trap experiments by levitating polarized ultracold neutrons above the surface of an asymmetric storage trap using a repulsive magnetic field gradient so that the stored neutrons do not interact with material trap walls. As a result of this approach and the use of an in situ neutron detector, the lifetime reported here [877.7 ± 0.7 (stat) +0.4/-0.2 (sys) seconds] does not require corrections larger than the quoted uncertainties.
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Affiliation(s)
- R W Pattie
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - N B Callahan
- Center for Exploration of Energy and Matter and Department of Physics, Indiana University, Bloomington, IN 47408, USA
| | - C Cude-Woods
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA.,Triangle Universities Nuclear Laboratory and North Carolina State University, Raleigh, NC 27695, USA
| | - E R Adamek
- Center for Exploration of Energy and Matter and Department of Physics, Indiana University, Bloomington, IN 47408, USA
| | - L J Broussard
- Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - S M Clayton
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - S A Currie
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - E B Dees
- Triangle Universities Nuclear Laboratory and North Carolina State University, Raleigh, NC 27695, USA
| | - X Ding
- Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - E M Engel
- West Point Military Academy, West Point, NY 10996, USA
| | - D E Fellers
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - W Fox
- Center for Exploration of Energy and Matter and Department of Physics, Indiana University, Bloomington, IN 47408, USA
| | | | - K P Hickerson
- Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, CA 91125, USA
| | - M A Hoffbauer
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - A T Holley
- Department of Physics, Tennessee Technological University, Cookeville, TN 38505, USA
| | - A Komives
- Department of Physics and Astronomy, DePauw University, Greencastle, IN 46135-0037, USA
| | - C-Y Liu
- Center for Exploration of Energy and Matter and Department of Physics, Indiana University, Bloomington, IN 47408, USA
| | | | - M Makela
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - C L Morris
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - J D Ortiz
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - J Ramsey
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - D J Salvat
- Department of Physics, University of Washington, Seattle, WA 98195-1560, USA
| | - A Saunders
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
| | - S J Seestrom
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - E I Sharapov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - S K Sjue
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - Z Tang
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - J Vanderwerp
- Center for Exploration of Energy and Matter and Department of Physics, Indiana University, Bloomington, IN 47408, USA
| | - B Vogelaar
- Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - P L Walstrom
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - Z Wang
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - W Wei
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - H L Weaver
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - J W Wexler
- Triangle Universities Nuclear Laboratory and North Carolina State University, Raleigh, NC 27695, USA
| | - T L Womack
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - A R Young
- Triangle Universities Nuclear Laboratory and North Carolina State University, Raleigh, NC 27695, USA
| | - B A Zeck
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA.,Triangle Universities Nuclear Laboratory and North Carolina State University, Raleigh, NC 27695, USA
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2
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Pattie RW, Callahan NB, Cude-Woods C, Adamek ER, Broussard LJ, Clayton SM, Currie SA, Dees EB, Ding X, Engel EM, Fellers DE, Fox W, Geltenbort P, Hickerson KP, Hoffbauer MA, Holley AT, Komives A, Liu CY, MacDonald SWT, Makela M, Morris CL, Ortiz JD, Ramsey J, Salvat DJ, Saunders A, Seestrom SJ, Sharapov EI, Sjue SK, Tang Z, Vanderwerp J, Vogelaar B, Walstrom PL, Wang Z, Wei W, Weaver HL, Wexler JW, Womack TL, Young AR, Zeck BA. Measurement of the neutron lifetime using a magneto-gravitational trap and in situ detection. Science 2018; 360:627-632. [PMID: 29731449 DOI: 10.1126/science.aan8895] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 03/13/2018] [Indexed: 11/02/2022]
Abstract
The precise value of the mean neutron lifetime, τn, plays an important role in nuclear and particle physics and cosmology. It is used to predict the ratio of protons to helium atoms in the primordial universe and to search for physics beyond the Standard Model of particle physics. We eliminated loss mechanisms present in previous trap experiments by levitating polarized ultracold neutrons above the surface of an asymmetric storage trap using a repulsive magnetic field gradient so that the stored neutrons do not interact with material trap walls. As a result of this approach and the use of an in situ neutron detector, the lifetime reported here [877.7 ± 0.7 (stat) +0.4/-0.2 (sys) seconds] does not require corrections larger than the quoted uncertainties.
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Affiliation(s)
- R W Pattie
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - N B Callahan
- Center for Exploration of Energy and Matter and Department of Physics, Indiana University, Bloomington, IN 47408, USA
| | - C Cude-Woods
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA.,Triangle Universities Nuclear Laboratory and North Carolina State University, Raleigh, NC 27695, USA
| | - E R Adamek
- Center for Exploration of Energy and Matter and Department of Physics, Indiana University, Bloomington, IN 47408, USA
| | - L J Broussard
- Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - S M Clayton
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - S A Currie
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - E B Dees
- Triangle Universities Nuclear Laboratory and North Carolina State University, Raleigh, NC 27695, USA
| | - X Ding
- Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - E M Engel
- West Point Military Academy, West Point, NY 10996, USA
| | - D E Fellers
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - W Fox
- Center for Exploration of Energy and Matter and Department of Physics, Indiana University, Bloomington, IN 47408, USA
| | | | - K P Hickerson
- Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, CA 91125, USA
| | - M A Hoffbauer
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - A T Holley
- Department of Physics, Tennessee Technological University, Cookeville, TN 38505, USA
| | - A Komives
- Department of Physics and Astronomy, DePauw University, Greencastle, IN 46135-0037, USA
| | - C-Y Liu
- Center for Exploration of Energy and Matter and Department of Physics, Indiana University, Bloomington, IN 47408, USA
| | | | - M Makela
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - C L Morris
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - J D Ortiz
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - J Ramsey
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - D J Salvat
- Department of Physics, University of Washington, Seattle, WA 98195-1560, USA
| | - A Saunders
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
| | - S J Seestrom
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - E I Sharapov
- Joint Institute for Nuclear Research, Dubna, Moscow region 141980, Russia
| | - S K Sjue
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - Z Tang
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - J Vanderwerp
- Center for Exploration of Energy and Matter and Department of Physics, Indiana University, Bloomington, IN 47408, USA
| | - B Vogelaar
- Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - P L Walstrom
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - Z Wang
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - W Wei
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - H L Weaver
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - J W Wexler
- Triangle Universities Nuclear Laboratory and North Carolina State University, Raleigh, NC 27695, USA
| | - T L Womack
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - A R Young
- Triangle Universities Nuclear Laboratory and North Carolina State University, Raleigh, NC 27695, USA
| | - B A Zeck
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA.,Triangle Universities Nuclear Laboratory and North Carolina State University, Raleigh, NC 27695, USA
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3
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Morris CL, Adamek ER, Broussard LJ, Callahan NB, Clayton SM, Cude-Woods C, Currie SA, Ding X, Fox W, Hickerson KP, Hoffbauer MA, Holley AT, Komives A, Liu CY, Makela M, Pattie RW, Ramsey J, Salvat DJ, Saunders A, Seestrom SJ, Sharapov EI, Sjue SK, Tang Z, Vanderwerp J, Vogelaar B, Walstrom PL, Wang Z, Wei W, Wexler JW, Womack TL, Young AR, Zeck BA. A new method for measuring the neutron lifetime using an in situ neutron detector. Rev Sci Instrum 2017; 88:053508. [PMID: 28571423 PMCID: PMC5648580 DOI: 10.1063/1.4983578] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 05/03/2017] [Indexed: 06/07/2023]
Abstract
In this paper, we describe a new method for measuring surviving neutrons in neutron lifetime measurements using bottled ultracold neutrons (UCN), which provides better characterization of systematic uncertainties and enables higher precision than previous measurement techniques. An active detector that can be lowered into the trap has been used to measure the neutron distribution as a function of height and measure the influence of marginally trapped UCN on the neutron lifetime measurement. In addition, measurements have demonstrated phase-space evolution and its effect on the lifetime measurement.
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Affiliation(s)
- C L Morris
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - E R Adamek
- Department of Physics, Indiana University, Bloomington, Indiana 47408, USA
| | - L J Broussard
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - N B Callahan
- Department of Physics, Indiana University, Bloomington, Indiana 47408, USA
| | - S M Clayton
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C Cude-Woods
- Triangle Universities Nuclear Laboratory, North Carolina State University, Raleigh, North Carolina 27695, USA
| | - S A Currie
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - X Ding
- Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - W Fox
- Department of Physics, Indiana University, Bloomington, Indiana 47408, USA
| | - K P Hickerson
- California Institute of Technology, Pasadena, California 91125, USA
| | - M A Hoffbauer
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A T Holley
- Department of Physics, Tennessee Tech University, Cookeville, Tennessee 38505, USA
| | - A Komives
- Department of Physics, DePauw University, Greencastle Indiana 46135-0037, USA
| | - C-Y Liu
- Department of Physics, Indiana University, Bloomington, Indiana 47408, USA
| | - M Makela
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - R W Pattie
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J Ramsey
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D J Salvat
- Department of Physics, University of Washington, Seattle, Washington 98195-1560, USA
| | - A Saunders
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - S J Seestrom
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - E I Sharapov
- Joint Institute for Nuclear Research, Dubna, Moscow Region 141980, Russia
| | - S K Sjue
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Z Tang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J Vanderwerp
- Department of Physics, Indiana University, Bloomington, Indiana 47408, USA
| | - B Vogelaar
- Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
| | - P L Walstrom
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Z Wang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Wanchun Wei
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J W Wexler
- Triangle Universities Nuclear Laboratory, North Carolina State University, Raleigh, North Carolina 27695, USA
| | - T L Womack
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A R Young
- Triangle Universities Nuclear Laboratory, North Carolina State University, Raleigh, North Carolina 27695, USA
| | - B A Zeck
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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4
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Saunders A, Makela M, Bagdasarova Y, Back HO, Boissevain J, Broussard LJ, Bowles TJ, Carr R, Currie SA, Filippone B, García A, Geltenbort P, Hickerson KP, Hill RE, Hoagland J, Hoedl S, Holley AT, Hogan G, Ito TM, Lamoreaux S, Liu CY, Liu J, Mammei RR, Martin J, Melconian D, Mendenhall MP, Morris CL, Mortensen RN, Pattie RW, Pitt M, Plaster B, Ramsey J, Rios R, Sallaska A, Seestrom SJ, Sharapov EI, Sjue S, Sondheim WE, Teasdale W, Young AR, VornDick B, Vogelaar RB, Wang Z, Xu Y. Performance of the Los Alamos National Laboratory spallation-driven solid-deuterium ultra-cold neutron source. Rev Sci Instrum 2013; 84:013304. [PMID: 23387639 DOI: 10.1063/1.4770063] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this paper, we describe the performance of the Los Alamos spallation-driven solid-deuterium ultra-cold neutron (UCN) source. Measurements of the cold neutron flux, the very low energy neutron production rate, and the UCN rates and density at the exit from the biological shield are presented and compared to Monte Carlo predictions. The cold neutron rates compare well with predictions from the Monte Carlo code MCNPX and the UCN rates agree with our custom UCN Monte Carlo code. The source is shown to perform as modeled. The maximum delivered UCN density at the exit from the biological shield is 52(9) UCN/cc with a solid deuterium volume of ~1500 cm(3).
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Affiliation(s)
- A Saunders
- Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA
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5
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Liu J, Mendenhall MP, Holley AT, Back HO, Bowles TJ, Broussard LJ, Carr R, Clayton S, Currie S, Filippone BW, García A, Geltenbort P, Hickerson KP, Hoagland J, Hogan GE, Hona B, Ito TM, Liu CY, Makela M, Mammei RR, Martin JW, Melconian D, Morris CL, Pattie RW, Pérez Galván A, Pitt ML, Plaster B, Ramsey JC, Rios R, Russell R, Saunders A, Seestrom SJ, Sondheim WE, Tatar E, Vogelaar RB, VornDick B, Wrede C, Yan H, Young AR. Determination of the axial-vector weak coupling constant with ultracold neutrons. Phys Rev Lett 2010; 105:181803. [PMID: 21231098 DOI: 10.1103/physrevlett.105.181803] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Indexed: 05/30/2023]
Abstract
A precise measurement of the neutron decay β asymmetry A₀ has been carried out using polarized ultracold neutrons from the pulsed spallation ultracold neutron source at the Los Alamos Neutron Science Center. Combining data obtained in 2008 and 2009, we report A₀ = -0.119 66±0.000 89{-0.001 40}{+0.001 23}, from which we determine the ratio of the axial-vector to vector weak coupling of the nucleon g{A}/g{V}=-1.275 90{-0.004 45}{+0.004 09}.
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Affiliation(s)
- J Liu
- Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, CA 91125, USA
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6
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Morris CL, Anaya JM, Bowles TJ, Filippone BW, Geltenbort P, Hill RE, Hino M, Hoedl S, Hogan GE, Ito TM, Kawai T, Kirch K, Lamoreaux SK, Liu CY, Makela M, Marek LJ, Martin JW, Mortensen RN, Pichlmaier A, Saunders A, Seestrom SJ, Smith D, Teasdale W, Tipton B, Utsuro M, Young AR, Yuan J. Measurements of ultracold-neutron lifetimes in solid deuterium. Phys Rev Lett 2002; 89:272501. [PMID: 12513198 DOI: 10.1103/physrevlett.89.272501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2001] [Revised: 09/03/2002] [Indexed: 05/24/2023]
Abstract
We present the first measurements of the survival time of ultracold neutrons (UCNs) in solid deuterium (SD2). This critical parameter provides a fundamental limitation to the effectiveness of superthermal UCN sources that utilize solid ortho-deuterium as the source material. These measurements are performed utilizing a SD2 source coupled to a spallation source of neutrons, providing a demonstration of UCN production in this geometry and permitting systematic studies of the influence of thermal up-scatter and contamination with para-deuterium on the UCN survival time.
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Affiliation(s)
- C L Morris
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA
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7
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Knudson JN, Bowman JD, Crawford BE, Delheij PPJ, Frankle CM, Gould CR, Haase DG, Iinuma M, Lowie LY, Masaike A, Masuda Y, Matsuda Y, Mitchell GE, Penttila SI, Postma H, Roberson NR, Seestrom SJ, Sharapov EI, Shimizu HM, Stephenson SL, Yen YF, Yuan VW, Yoo SH. A high-rate detection system to study parity violation with polarized epithermal neutrons at LANSCE. J of Neutron Res 1996. [DOI: 10.1080/10238169608200086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Szymanski JJ, Snow WM, Bowman JD, Cain B, Crawford BE, Delheij PP, Hartman RD, Haseyama T, Keith CD, Knudson JN, Komives A, Leuschner M, Lowie LY, Masaike A, Matsuda Y, Mitchell GE, Penttilä SI, Postma H, Rich D, Roberson NR, Seestrom SJ, Sharapov EI, Stephenson SL, Yen YF, Yuan VW. Observation of a large parity nonconserving analyzing power in Xe. Phys Rev C Nucl Phys 1996; 53:R2576-R2580. [PMID: 9971310 DOI: 10.1103/physrevc.53.r2576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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9
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Laymon CM, Amos W, Burlein MG, Fortune HT, Ekenberg T, Kotwal A, O'Donnell JM, Silk JD, Zumbro JD, Morris CL, Seestrom SJ, Dhuga KS, Garnett R, Rawool-Sullivan MW, Moore CF, Morris SL, Watson DL. Pion elastic and inelastic 21+ scattering on 58,60,62,64Ni at T pi =180 MeV. Phys Rev C Nucl Phys 1996; 53:1167-1172. [PMID: 9971051 DOI: 10.1103/physrevc.53.1167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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10
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Frankle CM, Bowman JD, Crawford BE, Delheij PP, Gould CR, Haase DG, Knudson JN, Mitchell GE, Patterson SS, Penttilä SI, Popov YP, Roberson NR, Seestrom SJ, Sharapov EI, Yen YF, Yoo SH, Yuan VW, Zhu X. Neutron resonance spectroscopy of 113In and 115In. Phys Rev C Nucl Phys 1993; 48:1601-1608. [PMID: 9969001 DOI: 10.1103/physrevc.48.1601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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11
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Wise JE, Braunstein MR, Hoibråten S, Kohler MD, Kriss BJ, Ouyang J, Peterson RJ, McGill JA, Morris CL, Seestrom SJ, Whitton RM, Zumbro JD, Edwards CM, Williams AL. Quasifree pion scattering at 500 MeV. Phys Rev C Nucl Phys 1993; 48:1840-1848. [PMID: 9969027 DOI: 10.1103/physrevc.48.1840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Zumbro JD, Morris CL, McGill JA, Seestrom SJ, Whitton RM, Edwards CM, Williams AL, Braunstein MR, Kohler MD, Kriss BJ, Hoibråten S, Peterson RJ, Ouyang J, Wise JE, Gibbs WR. Inclusive scattering of 500-MeV pions from carbon. Phys Rev Lett 1993; 71:1796-1799. [PMID: 10054502 DOI: 10.1103/physrevlett.71.1796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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13
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Bowman JD, Delheij PP, Frankle CM, Gould CR, Haase DG, Knudson JN, Mitchell GE, Penttilä S, Postma H, Roberson NR, Seestrom SJ, Szymanski JJ, Yeh JJ, Yoo SH, Yuan VW, Zhu X. Experimental limit on parity violation in nonresonant neutron-nucleus scattering. Phys Rev C Nucl Phys 1993; 48:1116-1119. [PMID: 9968943 DOI: 10.1103/physrevc.48.1116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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14
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Haase DG, Bowman JD, Delheij PP, Frankle CM, Gould CR, Knudson JN, Koster JE, Mitchell GE, Penttilä S, Postma H, Roberson NR, Seestrom SJ, Yoo SH, Yuan VW. Depolarization of neutrons in ferromagnetic holmium by means of enhanced nuclear parity violation in 139La. Phys Rev B Condens Matter 1992; 46:11290-11294. [PMID: 10003015 DOI: 10.1103/physrevb.46.11290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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15
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Frankle CM, Bowman JD, Bush JE, Delheij PP, Gould CR, Haase DG, Knudson JN, Mitchell GE, Penttilä S, Postma H, Roberson NR, Seestrom SJ, Szymanski JJ, Yuan VW, Zhu X. Parity nonconservation for the 0.88-eV neutron resonance in 81Br. Phys Rev C Nucl Phys 1992; 46:1542-1545. [PMID: 9968265 DOI: 10.1103/physrevc.46.1542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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16
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Horen DJ, Morris CL, Seestrom SJ, Hersman FW, Calarco JR, Holtrop M, Leuschner M, Rawool-Sullivan M, Garnett RW, Greene SJ, Plum MA, Zumbro JD. Isospin character of the transition to the 0.803-MeV state in 206Pb from pi +/- scattering at 180 MeV. Phys Rev C Nucl Phys 1992; 46:499-503. [PMID: 9968143 DOI: 10.1103/physrevc.46.499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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17
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Frankle CM, Bowman JD, Bush JE, Delheij PP, Gould CR, Haase DG, Knudson JN, Mitchell GE, Penttilä S, Postma H, Roberson NR, Seestrom SJ, Szymanski JJ, Yoo SH, Yuan VW, Zhu X. Parity nonconservation for neutron resonances in 232Th. Phys Rev C Nucl Phys 1992; 46:778-787. [PMID: 9968176 DOI: 10.1103/physrevc.46.778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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18
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Zhu X, Bowman JD, Bowman CD, Bush JE, Delheij PP, Frankle CM, Gould CR, Haase DG, Knudson JN, Mitchell GE, Penttilä S, Postma H, Roberson NR, Seestrom SJ, Szymanski JJ, Yuan VW. Parity nonconservation for neutron resonances in 238U. Phys Rev C Nucl Phys 1992; 46:768-777. [PMID: 9968175 DOI: 10.1103/physrevc.46.768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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19
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Frankle CM, Bowman CD, Bowman JD, Seestrom SJ, Sharapov EI, Popov YP, Roberson NR. Neutron resonance spectroscopy on 113Cd: The p-wave levels. Phys Rev C Nucl Phys 1992; 45:2143-2146. [PMID: 9967974 DOI: 10.1103/physrevc.45.2143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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20
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Knudson JN, Morris CL, Bowman JD, Sailor WC, Seestrom SJ, Supek I, Sadler ME, Isenhower LD. Search for neutral pions from the spontaneous fission of 252Cf. Phys Rev C Nucl Phys 1991; 44:2869-2871. [PMID: 9967720 DOI: 10.1103/physrevc.44.2869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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21
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Yuan VW, Bowman CD, Bowman JD, Bush JE, Delheij PP, Frankle CM, Gould CR, Haase DG, Knudson JN, Mitchell GE, Penttilä S, Postma H, Roberson NR, Seestrom SJ, Szymanski JJ, Zhu X. Parity nonconservation in polarized-neutron transmission through 139La. Phys Rev C Nucl Phys 1991; 44:2187-2194. [PMID: 9967639 DOI: 10.1103/physrevc.44.2187] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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22
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Oakley DS, Peterson RJ, Seestrom SJ, Morris CL, Plum MA, Zumbro JD, Williams AL, Bryan MA, McDonald JW, Moore CF. Energy dependence of pion inelastic scattering from 208Pb. Phys Rev C Nucl Phys 1991; 44:2058-2064. [PMID: 9967629 DOI: 10.1103/physrevc.44.2058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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23
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Brinkmöller B, Blilie CL, Dehnhard D, Jones MK, Martinez GM, Nanda SK, Sterbenz SM, Yen YF, Atencio LG, Faucett JA, Greene SJ, Morris CL, Seestrom SJ, Burleson GR, Dhuga KS, Garnett RW, Maeda K, Moore CF, Mordechai S, Williams A, Yoo SH, Bland LC. Elastic scattering of pi + and pi - from 4He between 90 and 240 MeV. Phys Rev C Nucl Phys 1991; 44:2031-2040. [PMID: 9967626 DOI: 10.1103/physrevc.44.2031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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24
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Frankle CM, Bowman JD, Bush JE, Delheij PP, Gould CR, Haase DG, Knudson JN, Mitchell GE, Penttilä S, Postma H, Roberson NR, Seestrom SJ, Szymanski JJ, Yoo SH, Yuan VW, Zhu X. Sign correlations and parity nonconservation for neutron resonances in 232Th. Phys Rev Lett 1991; 67:564-567. [PMID: 10044930 DOI: 10.1103/physrevlett.67.564] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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25
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Bowman JD, Bowman CD, Bush JE, Delheij PP, Frankle CM, Gould CR, Haase DG, Knudson J, Mitchell GE, Penttila S, Postma H, Roberson NR, Seestrom SJ, Szymanski JJ, Yuan VW, Zhu X. Parity nonconservation for neutron resonances in 238U. Phys Rev Lett 1990; 65:1192-1195. [PMID: 10042198 DOI: 10.1103/physrevlett.65.1192] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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