NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = R.W.Pattie Found 13 matches. 2022CU09 Phys.Rev. C 106, 065506 (2022) C.Cude-Woods, F.M.Gonzalez, E.M.Fries, T.Bailey, M.Blatnik, N.B.Callahan, J.H.Choi, S.M.Clayton, S.A.Currie, M.Dawid, B.W.Filippone, W.Fox, P.Geltenbort, E.George, L.Hayen, K.P.Hickerson, M.A.Hoffbauer, K.Hoffman, A.T.Holley, T.M.Ito, A.Komives, C.-Y.Liu, M.Makela, C.L.Morris, R.Musedinovic, C.O'Shaughnessy, R.W.Pattie, J.Ramsey, D.J.Salvat, A.Saunders, E.I.Sharapov, S.Slutsky, V.Su, X.Sun, C.Swank, Z.Tang, W.Uhrich, J.Vanderwerp, P.Walstrom, Z.Wang, W.Wei, A.R.Young Fill and dump measurement of the neutron lifetime using an asymmetric magneto-gravitational trap RADIOACTIVITY 1NN(β-); measured number of trapped neutrons; deduced free neutron lifetime T1/2. Comparison to previous most precise experimental data. Asymmetric magneto-gravitational trap at Los Alamos Ultracold Neutron Facility.
doi: 10.1103/PhysRevC.106.065506
2019CA17 Phys.Rev. C 100, 015501 (2019) N.Callahan, C.-Y.Liu, F.Gonzalez, E.Adamek, J.D.Bowman, L.Broussard, S.M.Clayton, S.Currie, C.Cude-Woods, E.B.Dees, X.Ding, W.Fox, P.Geltenbort, K.P.Hickerson, M.A.Hoffbauer, A.T.Holley, A.Komives, S.W.T.MacDonald, M.Makela, C.L.Morris, J.D.Ortiz, R.W.Pattie, J.Ramsey, D.J.Salvat, A.Saunders, E.I.Sharapov, S.K.L.Sjue, Z.Tang, J.Vanderwerp, B.Vogelaar, P.L.Walstrom, Z.Wang, H.Weaver, W.Wei, J.Wexler, A.R.Young Monte Carlo simulations of trapped ultracold neutrons in the UCNt experiment RADIOACTIVITY 1n(β-); calculated neutron dynamics, trajectory and neutron detection rate in Ultra-cold neutron (UCN) magneto-gravitational neutron trap by developing an in-depth Monte Carlo model for the UCNτ experiments. Discussed implications of chaotic dynamics on controlling the systematic effects, such as spectral cleaning and microphonic heating, for a successful UCN lifetime experiment to reach 0.01% level of precision.
doi: 10.1103/PhysRevC.100.015501
2018AN12 Eur.Phys.J. A 54, 148 (2018) A.Anghel, T.L.Bailey, G.Bison, B.Blau, L.J.Broussard, S.M.Clayton, C.Cude-Woods, M.Daum, A.Hawari, N.Hild, P.Huffman, T.M.Ito, K.Kirch, E.Korobkina, B.Lauss, K.Leung, E.M.Lutz, M.Makela, G.Medlin, C.L.Morris, R.W.Pattie, D.Ries, A.Saunders, P.Schmidt-Wellenburg, V.Talanov, A.R.Young, B.Wehring, C.White, M.Wohlmuther, G.Zsigmond Solid deuterium surface degradation at ultracold neutron sources
doi: 10.1140/epja/i2018-12594-2
2018IT01 Phys.Rev. C 97, 012501 (2018) T.M.Ito, E.R.Adamek, N.B.Callahan, J.H.Choi, S.M.Clayton, C.Cude-Woods, S.Currie, X.Ding, D.E.Fellers, P.Geltenbort, S.K.Lamoreaux, C.-Y.Liu, S.MacDonald, M.Makela, C.L.Morris, R.W.Pattie, J.C.Ramsey, D.J.Salvat, A.Saunders, E.I.Sharapov, S.Sjue, A.P.Sprow, Z.Tang, H.L.Weaver, W.Wei, A.R.Young Performance of the upgraded ultracold neutron source at Los Alamos National Laboratory and its implication for a possible neutron electric dipole moment experiment RADIOACTIVITY 1n(β-); measured cold neutron time of arrival (TOA) spectrum, UCN density, dUCNcounts normalized to the UCN monitor detector near the exit of the biological shield using upgraded ultracold neutron (UCN) source at Los Alamos National Laboratory. Discussed implication for a possible neutron electric dipole moment (EDM) experiment.
doi: 10.1103/PhysRevC.97.012501
2018PA53 Science 360, 627 (2018) R.W.Pattie, N.B.Callahan, C.Cude-Woods, E.R.Adamek, L.J.Broussard, S.M.Clayton, S.A.Currie, E.B.Dees, X.Ding, E.M.Engel, D.E.Fellers, W.Fox, P.Geltenbort, K.P.Hickerson, M.A.Hoffbauer, A.T.Holley, A.Komives, C.-Y.Liu, S.W.T.MacDonald, M.Makela, C.L.Morris, J.D.Ortiz, J.Ramsey, D.J.Salvat, A.Saunders, S.J.Seestrom, E.I.Sharapov, S.K.Sjue, Z.Tang, J.Vanderwerp, B.Vogelaar, P.L.Walstrom, Z.Wang, W.Wei, H.L.Weaver, J.W.Wexler, T.L.Womack, A.R.Young, B.A.Zeck Measurement of the neutron lifetime using a magneto-gravitational trap and in situ detection RADIOACTIVITY 1NN(β-); measured T1/2 of free neutron using ultracold neutrons stored in a magneto-gravitational trap at the Los Alamos Neutron Science Center UCN facility. Comparison with previous measurements.
doi: 10.1126/science.aan8895
2018TA18 Phys.Rev.Lett. 121, 022505 (2018) Z.Tang, M.Blatnik, L.J.Broussard, J.H.Choi, S.M.Clayton, C.Cude-Woods, S.Currie, D.E.Fellers, E.M.Fries, P.Geltenbort, F.Gonzalez, K.P.Hickerson, T.M.Ito, C.-Y.Liu, S.W.T.MacDonald, M.Makela, C.L.Morris, C.M.O'Shaughnessy, R.W.Pattie, B.Plaster, D.J.Salvat, A.Saunders, Z.Wang, A.R.Young, B.A.Zeck Search for the Neutron Decay n → X + γ, Where X is a Dark Matter Particle RADIOACTIVITY 1NN(γ); measured decay products, Eγ, Iγ; deduced lack of the possibility of a sufficiently strong branch to explain the lifetime discrepancy with 97% confidence.
doi: 10.1103/PhysRevLett.121.022505
2017SE02 Phys.Rev. C 95, 015501 (2017) S.J.Seestrom, E.R.Adamek, D.Barlow, M.Blatnik, L.J.Broussard, N.B.Callahan, S.M.Clayton, C.Cude-Woods, S.Currie, E.B.Dees, W.Fox, M.Hoffbauer, K.P.Hickerson, A.T.Holley, C.-Y.Liu, M.Makela, J.Medina, D.J.Morley, C.L.Morris, R.W.Pattie, J.Ramsey, A.Roberts, D.J.Salvat, A.Saunders, E.I.Sharapov, S.K.L.Sjue, B.A.Slaughter, P.L.Walstrom, Z.Wang, J.Wexler, T.L.Womack, A.R.Young, J.Vanderwerp, B.A.Zeck Total cross sections for ultracold neutrons scattered from gases NUCLEAR REACTIONS 1H, 3He(n, n'), E=ultracold neutrons; measured scattered neutrons, transmission ratio as a function of pressure, total cross sections, total cross section as a function of the number of hydrogen atoms using the following gas targets: hydrogen, ethane, methane, isobutene, n-butane, ethylene, water vapor, propane, neopentane, isopropyl alcohol, and 3He; deduced cross section per hydrogen atom as a function of molecular mass. Relevance to ongoing experiments pn neutron half-life measurements using ultracold neutrons (UCN) at LANL facility.
doi: 10.1103/PhysRevC.95.015501
2016PH02 Phys.Rep. 612, 1 (2016) D.G.Phillips II, W.M.Snow, K.Babu, S.Banerjee, D.V.Baxter, Z.Berezhiani, M.Bergevin, S.Bhattacharya, G.Brooijmans, L.Castellanos, M.-C.Chen, C.E.Coppola, R.Cowsik, J.A.Crabtree, P.Das, E.B.Dees, A.Dolgov, P.D.Ferguson, M.Frost, T.Gabriel, A.Gal, F.Gallmeier, K.Ganezer, E.Golubeva, G.Greene, B.Hartfiel, A.Hawari, L.Heilbronn, C.Johnson, Y.Kamyshkov, B.Kerbikov, M.Kitaguchi, B.Z.Kopeliovich, V.B.Kopeliovich, V.A.Kuzmin, C-Y.Liu, P.McGaughey, M.Mocko, R.Mohapatra, N.Mokhov, G.Muhrer, H.P.Mumm, L.Okun, R.W.Pattie, Jr., C.Quigg, E.Ramberg, A.Ray, A.Roy, A.Ruggles, U.Sarkar, A.Saunders, A.P.Serebrov, H.M.Shimizu, R.Shrock, A.K.Sikdar, S.Sjue, S.Striganov, L.W.Townsend, R.Tschirhart, A.Vainshtein, R.Van Kooten, Z.Wang, A.R.Young Neutron-antineutron oscillations: Theoretical status and experimental prospects COMPILATION A=1; compiled experimental and theoretical information.
doi: 10.1016/j.physrep.2015.11.001
2014BR06 Phys.Rev.Lett. 112, 212301 (2014) L.J.Broussard, H.O.Back, M.S.Boswell, A.S.Crowell, P.Dendooven, G.S.Giri, C.R.Howell, M.F.Kidd, K.Jungmann, W.L.Kruithof, A.Mol, C.J.G.Onderwater, R.W.Pattie, Jr., P.D.Shidling, M.Sohani, D.J.van der Hoek, A.Rogachevskiy, E.Traykov, O.O.Versolato, L.Willmann, H.W.Wilschut, A.R.Young Measurement of the Half-Life of the T= 1/2 Mirror Decay of 19Ne and its Implication on Physics Beyond the Standard Model RADIOACTIVITY 19Ne(EC) [from 19F(p, n), E=10.5 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced T1/2. Comparison with available data and systematics.
doi: 10.1103/PhysRevLett.112.212301
2013PA32 Phys.Rev. C 88, 048501 (2013);Erratum Phys.Rev. C 92, 069902 (2015) R.W.Pattie, K.P.Hickerson, A.R.Young Limits on tensor coupling from neutron β decay RADIOACTIVITY 1n(β-); calculated Limits of tensor coupling in mixed Gamow-Teller Fermi decays from neutron half-life, electron-neutrino asymmetry in neutron decay, and Ft values in (0+ to 0+) superallowed β decays of 10C, 14O, 22Mg, 26mAl, 34Ar, 34Cl, 38mK, 42Sc, 46V, 50Mn, 54Co, 62Ga, 74Rb.
doi: 10.1103/PhysRevC.88.048501
2013SH41 Phys.Rev. C 88, 037601 (2013) E.I.Sharapov, C.L.Morris, M.Makela, A.Saunders, E.R.Adamek, Y.Bagdasarova, L.J.Broussard, C.B.Cude-Woods, D.E.Fellers, P.Geltenbort, S.I.Hasan, K.P.Hickerson, G.Hogan, A.T.Holley, C.-Y.Liu, M.P.Mendenhall, J.Ortiz, R.W.Pattie, D.G.Phillips, J.Ramsey, D.J.Salvat, S.J.Seestrom, E.Shaw, S.K.L.Sjue, W.E.Sondheim, B.VornDick, Z.Wang, T.L.Womack, A.R.Young, B.A.Zeck Measurements of ultracold neutron upscattering and absorption in polyethylene and vanadium NUCLEAR REACTIONS 1H, V(n, n'), (n, γ), E=ultracold neutrons; measured E(n), I(n), Eγ, Iγ, ultra-cold neutron (UCN) upscattering and capture σ at UCN facility of LANL. Application to nuclear and particle physics, cosmology and gravity.
doi: 10.1103/PhysRevC.88.037601
2013SH46 Phys.Rev. C 88, 064605 (2013) E.I.Sharapov, C.L.Morris, M.Makela, A.Saunders, E.R.Adamek, L.J.Broussard, C.B.Cude-Woods, D.E.Fellers, P.Geltenbort, M.Hartl, S.I.Hasan, K.P.Hickerson, G.Hogan, A.T.Holley, C.M.Lavelle, C.-Y.Liu, M.P.Mendenhall, J.Ortiz, R.W.Pattie, D.G.Phillips, J.Ramsey, D.J.Salvat, S.J.Seestrom, E.Shaw, S.Sjue, W.E.Sondheim, B.VornDick, Z.Wang, T.L.Womack, A.R.Young, B.A.Zeck Upscattering of ultracold neutrons from the polymer [C6H12]n NUCLEAR REACTIONS 1H(n, n'), E=ultracold; measured spectra and rates of upscattered neutrons up to 100 meV range, shapes of spectra at LANSCE-LANL facility; deduced similar density of states in polyethylene (PE) and polymethylpentene (PMP) samples. Analysis using MCNP computer code.
doi: 10.1103/PhysRevC.88.064605
2009PA03 Phys.Rev.Lett. 102, 012301 (2009) R.W.Pattie, Jr., for the UCNA Collaboration First Measurement of the Neutron β Asymmetry with Ultracold Neutrons. RADIOACTIVITY 1n(β-); measured β asymmetry parameter.
doi: 10.1103/PhysRevLett.102.012301
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