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NSR database version of April 11, 2024.

Search: Author = L.Broussard

Found 13 matches.

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2023HA20      Phys.Rev. C 107, 065503 (2023)

L.Hayen, J.H.Choi, D.Combs, R.J.Taylor, S.Baessler, N.Birge, L.J.Broussard, C.B.Crawford, N.Fomin, M.Gericke, F.Gonzalez, A.Jezghani, N.Macsai, M.Makela, D.G.Mathews, R.Mammei, M.McCrea, A.Mendelsohn, A.Nelsen, G.Riley, T.Shelton, S.Sjue, E.Smith, A.R.Young, B.Zeck

Precision pulse shape simulation for proton detection at the Nab experiment

doi: 10.1103/PhysRevC.107.065503
Citations: PlumX Metrics


2022BR05      Phys.Rev.Lett. 128, 212503 (2022)

L.J.Broussard, J.L.Barrow, L.DeBeer-Schmitt, T.Dennis, M.R.Fitzsimmons, M.J.Frost, C.E.Gilbert, F.M.Gonzalez, L.Heilbronn, E.B.Iverson, A.Johnston, Y.Kamyshkov, M.Kline, P.Lewiz, C.Matteson, J.Ternullo, L.Varriano, S.Vavra

Experimental Search for Neutron to Mirror Neutron Oscillations as an Explanation of the Neutron Lifetime Anomaly

NUCLEAR REACTIONS B, C(n, X), E cold; measured reaction products, En, In. 1NN; deduced neutron transmission, neutron conversions, increase the apparent neutron lifetime. The Spallation Neutron Source, the National Institute of Standards and Technology Beam Lifetime experiment.

doi: 10.1103/PhysRevLett.128.212503
Citations: PlumX Metrics


2019BR14      Hyperfine Interactions 240, 1 (2019)

L.J.Broussard, S.Baessler, T.L.Bailey, N.Birge, J.D.Bowman, C.B.Crawford, C.Cude-Woods, D.E.Fellers, N.Fomin, E.Frlez, M.T.W.Gericke, L.Hayen, A.P.Jezghani, H.Li, N.Macsai, M.F.Makela, R.R.Mammei, D.Mathews, P.L.McGaughey, P.E.Mueller, D.Pocanic, C.A.Royse, A.Salas-Bacci, S.K.L.Sjue, J.C.Ramsey, N.Severijns, E.C.Smith, J.Wexler, R.A.Whitehead, A.R.Young, B.A.Zeck

Using Nab to determine correlations in unpolarized neutron decay

RADIOACTIVITY 45Ca(β-); measured decay products, Eβ, Iβ; deduced sensitivity for the ratio of the weak axial-vector and vector coupling constants.

doi: 10.1007/s10751-018-1538-7
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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
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2015SE18      Phys.Rev. C 92, 065501 (2015)

S.J.Seestrom, E.R.Adamek, D.Barlow, L.J.Broussard, N.B.Callahan, S.M.Clayton, C.Cude-Woods, S.Currie, E.B.Dees, W.Fox, P.Geltenbort, K.P.Hickerson, A.T.Holley, C.-Y.Liu, M.Makela, J.Medina, D.J.Morley, C.L.Morris, J.Ramsey, A.Roberts, D.J.Salvat, A.Saunders, E.I.Sharapov, S.K.L.Sjue, B.A.Slaughter, B.VornDick, P.L.Walstrom, Z.Wang, T.L.Womack, A.R.Young, B.A.Zeck, for the UCN|t Collaboration

Upscattering of ultracold neutrons from gases

NUCLEAR REACTIONS 1,2H, C, F, N, Ne, Ar, Xe(n, n'), E=UCNs from Los Alamos Neutron Science Center (LANSCE) ultracold neutron source; measured Eγ, Iγ, E(n), I(n), upscattered cross sections for room temperature gas targets of hydrogen, deuterium, nitrogen, neon, argon, xenon, C4H10, CF4, and air. Comparison with experimental values for higher neutron energies, and with theoretical calculations. Relevance to measurement of the half-life of free neutron decay at LANSCE using a magnetogravitational trap.

doi: 10.1103/PhysRevC.92.065501
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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
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Data from this article have been entered in the XUNDL database. For more information, click here.


2014SA31      Phys.Rev. C 89, 052501 (2014)

D.J.Salvat, E.R.Adamek, D.Barlow, J.D.Bowman, L.J.Broussard, N.B.Callahan, S.M.Clayton, C.Cude-Woods, S.Currie, E.B.Dees, W.Fox, P.Geltenbort, K.P.Hickerson, A.T.Holley, C.-Y.Liu, M.Makela, J.Medina, D.J.Morley, C.L.Morris, S.I.Penttila, J.Ramsey, A.Saunders, S.J.Seestrom, E.I.Sharapov, S.K.L.Sjue, B.A.Slaughter, J.Vanderwerp, B.VornDick, P.L.Walstrom, Z.Wang, T.L.Womack, A.R.Young

Storage of ultracold neutrons in the magneto-gravitational trap of the UCNT experiment

RADIOACTIVITY 1n(β-); measured mean storage times of ultracold neutrons (UCN) in a magneto-gravitational trap at the LANSCE-LANL UCN source, with and without activation of the field; discussed half-life of neutron decay, and systematic effects.

doi: 10.1103/PhysRevC.89.052501
Citations: PlumX Metrics

Data from this article have been entered in the XUNDL database. For more information, click here.


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
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14373.


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
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Note: The following list of authors and aliases matches the search parameter L.Broussard: , L.J.BROUSSARD