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NSR database version of May 23, 2024.

Search: Author = A.S.Crowell

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2022MA59      Phys.Lett. B 835, 137557 (2022)

R.C.Malone, A.S.Crowell, L.C.Cumberbatch, B.A.Fallin, F.Q.L.Friesen, C.R.Howell, C.R.Malone, D.R.Ticehurst, W.Tornow, D.M.Markoff, B.J.Crowe, H.Witala

Measurement of the 1S0 neutron-neutron effective range in neutron-deuteron breakup

NUCLEAR REACTIONS 2H(n, X), E<18 MeV; measured reaction products, En, In; deduced σ(θ, E), neutron-neutron effective range parameter from neutron-neutron quasifree scattering in neutron-deuteron breakup. The tandem accelerator facility at the Triangle Universities Nuclear Laboratory.

doi: 10.1016/j.physletb.2022.137557
Citations: PlumX Metrics


2020MA12      Phys.Rev. C 101, 034002 (2020)

R.C.Malone, A.S.Crowell, L.C.Cumberbatch, B.A.Fallin, F.Q.L.Friesen, C.R.Howell, C.R.Malone, D.R.Ticehurst, W.Tornow, D.M.Markoff, B.J.Crowe, H.Witala

Neutron-neutron quasifree scattering in neutron-deuteron breakup at 10 MeV

NUCLEAR REACTIONS 2H(n, 2n), E=10.0 MeV; measured En, In, nn-coin, and differential σ(θ) of neutron-neutron quasi-free scattering (QSF) in neutron-deuteron breakup using isotopically enriched deuterated polyethylene CD2 target, and neutron time-of-flight technique for neutrons detected using liquid scintillator detectors at TUNL; deduced deuteron breakup cross section. Comparison with few-nucleon calculations using CD Bonn nuclear potential in the Faddeev formalism.

doi: 10.1103/PhysRevC.101.034002
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14633.


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
Citations: PlumX Metrics

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


2014WE04      Phys.Rev. C 89, 054001 (2014)

G.J.Weisel, W.Tornow, A.S.Crowell, J.H.Esterline, G.M.Hale, C.R.Howell, P.D.O'Malley, J.R.Tompkins, H.Witala

Neutron-deuteron analyzing power data at En = 22.5 MeV

NUCLEAR REACTIONS 2H(polarized n, n), [polarized neutrons from 2H(polarized d, n) reaction], E=22.5 MeV; measured E(n), I(n), n-d analyzing power Ay(θ) using ABPIS facility at TUNL. Monte-Carlo simulations. Comparison with Faddeev calculations using several different NN potentials. Discussed three-nucleon analyzing power puzzle.

doi: 10.1103/PhysRevC.89.054001
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14395.


2012CO11      Phys.Rev. C 85, 054004 (2012)

A.H.Couture, T.B.Clegg, S.Tajima, C.R.Howell, B.Fallin, J.H.Esterline, A.S.Crowell, B.J.Crowe, D.M.Markoff, L.C.Cumberbatch, R.S.Pedroni, H.Witala

Cross-section measurements of 2H(n, np)n in symmetric star configurations

NUCLEAR REACTIONS 2H(n, np), E=16, 19 MeV; measured particle spectra, time-of-flight, np-coin, σ in space-star (SST) and coplanar star (CST) neutron-deuteron breakup configurations. Comparison with Monte Carlo simulations based on rigorous three-nucleon Faddeev calculations. Discussed discrepancies between data and theory; deficiencies in theoretical treatment of three-nucleon forces or in knowledge of the neutron-neutron 1S0 force.

doi: 10.1103/PhysRevC.85.054004
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14337.


2012RA05      Phys.Rev.Lett. 108, 042502 (2012)

R.Raut, W.Tornow, M.W.Ahmed, A.S.Crowell, J.H.Kelley, G.Rusev, S.C.Stave, A.P.Tonchev

Photodisintegration Cross Section of the Reaction 4He(γ, p)3H between 22 and 30 MeV

NUCLEAR REACTIONS 4He(γ, p), E=22-30 MeV; measured reaction products; deduced σ and its uncertainties. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.108.042502
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0167.


2012TO08      Phys.Rev. C 85, 061001 (2012)

W.Tornow, J.H.Kelley, R.Raut, G.Rusev, A.P.Tonchev, M.W.Ahmed, A.S.Crowell, S.C.Stave

Photodisintegration cross section of the reaction 4He(γ, n)3He at the giant dipole resonance peak

NUCLEAR REACTIONS 4He(γ, n)3He, E=27.0, 27.5, 28.0 MeV; measured Eγ, Iγ, angle-integrated σ at GDR peak. Duke University electron storage ring facility. Comparison with previous experimental data, and with theoretical predictions by Trento group based on semirealistic central nucleon-nucleon (NN) potential of the MT I-III type.

doi: 10.1103/PhysRevC.85.061001
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0175.


2011MU10      Phys.Rev. C 83, 064605 (2011)

J.M.Mueller, R.J.Charity, R.Shane, L.G.Sobotka, S.J.Waldecker, W.H.Dickhoff, A.S.Crowell, J.H.Esterline, B.Fallin, C.R.Howell, C.Westerfeldt, M.Youngs, B.J.Crowe, III, R.S.Pedroni

Asymmetry dependence of nucleon correlations in spherical nuclei extracted from a dispersive-optical-model analysis

NUCLEAR REACTIONS 40,48Ca(n, n), E=11.9, 16.9 MeV; measured E(n), I(n), σ, σ(E, θ), time-of-flight spectra. 40Ca(n, n), E=9.9-85.0; 48Ca(n, n), E=7.97-16.9 MeV; 54Ca(n, n), E=5.5-26.0 MeV; 58,60Ni(n, n), E=4.5-24.0 MeV; 92Mo(n, n), E=7.0-30.4 MeV; 116,118Sn(n, n), E=9.95-24.0 MeV; 120Sn(n, n), E=9.94-16.91 MeV; 124Sn(n, n), E=11.0-24.0 MeV; 208Pb(n, n), E=4.0-185.0 MeV; 50Ti(p, p), E=6.0-65.0 MeV; 52Cr(p, p), E=10.77-39.9 MeV; 54Fe, 64Ni(p, p), E=9.69-65.0 MeV; 58Ni(p, p), E=7.0-192.0 MeV; 60Ni(p, p), E=7.0-178.0 MeV; 62Ni(p, p), E=8.02-156.0 MeV; 90Zr(p, p), E=5.57-185.0 MeV; 92Mo(p, p), E=12.5-49.45 MeV; 114Sn(p, p), E=30.4 MeV; 116Sn(p, p), E=16.0-61.4 MeV; 118,122,124Sn(p, p), E=16.0-49.35 MeV; 120Sn(p, p), E=9.8-156.0 MeV; 208Pb(p, p), E=9.0-200.0 MeV; analyzed total cross sections, σ(E, θ), single-particle levels, spectroscopic factors, occupation probabilities, mass dependence on cross section. Dispersal optical model (DOM) analysis.

doi: 10.1103/PhysRevC.83.064605
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14303.


2011RA08      Phys.Rev. C 83, 044621 (2011)

R.Raut, A.S.Crowell, B.Fallin, C.R.Howell, C.Huibregtse, J.H.Kelley, T.Kawano, E.Kwan, G.Rusev, A.P.Tonchev, W.Tornow, D.J.Vieira, J.B.Wilhelmy

Cross-section measurements of neutron-induced reactions on GaAs using monoenergetic beams from 7.5 to 15 MeV

NUCLEAR REACTIONS 69Ga(n, 2n)68Ga, 69Ga(n, p)69mZn, 71Ga(n, p)71mZn, 75As(n, 2n)74As, 75As(n, p)75Ge, E=7.5, 8.0, 8.5, 9.5, 10.2, 11.0, 11.5, 12.5, 13.25, 14.0, 14.5, 15.0 MeV; measured Eγ, Iγ; deduced half-lives and σ. 27Al(n, α)24Na, 197Au(n, 2n)196Au, E=7.5-14.5 MeV; measured σ and used as monitor reactions. Comparison of measured cross sections with previous data and statistical model calculations based on the Hauser-Feshbach formalism, using the TALYS and the COH3 codes.

doi: 10.1103/PhysRevC.83.044621
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14291.


2010WE01      Phys.Rev. C 81, 024003 (2010)

G.J.Weisel, W.Tornow, B.J.Crowe III, A.S.Crowell, J.H.Esterline, C.R.Howell, J.H.Kelley, R.A.Macri, R.S.Pedroni, R.L.Walter, H.Witala

Neutron-deuteron analyzing power data at 19.0 MeV

NUCLEAR REACTIONS 2H(polarized n, n), E(n)=19.0 MeV; measured analyzing powers; Monte Carlo simulation. Polarized neutrons produced in 2H(polarized d, n)3He reaction and neutron polarization measured in 4He(polarized n, n) reaction. Comparison with a three-body Faddeev calculation.

doi: 10.1103/PhysRevC.81.024003
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14265.


2009HU09      Phys.Rev. C 80, 014603 (2009)

A.Hutcheson, C.Angell, J.A.Becker, A.S.Crowell, D.Dashdorj, B.Fallin, N.Fotiades, C.R.Howell, H.J.Karwowski, T.Kawano, J.H.Kelley, E.Kwan, R.A.Macri, R.O.Nelson, R.S.Pedroni, A.P.Tonchev, W.Tornow

Cross sections for 238U(n, n'γ) and 238U(n, 2nγ) reactions at incident neutron energies between 5 and 14 MeV

NUCLEAR REACTIONS 238U(n, n'γ), (n, 2nγ), E=5-14 MeV; measured Eγ, yields, σ and excitation functions. Comparison with existing data and calculations using the GNASH and TALYS Hauser-Feshbach statistical-model codes.

doi: 10.1103/PhysRevC.80.014603
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14240.


2008ST10      Phys.Rev. C 77, 054607 (2008)

S.Stave, M.W.Ahmed, A.J.Antolak, M.A.Blackston, A.S.Crowell, B.L.Doyle, S.S.Henshaw, C.R.Howell, P.Kingsberry, B.A.Perdue, P.Rossi, R.M.Prior, M.C.Spraker, H.R.Weller

Cross section measurements of the 10B(d, n0)11C reaction below 160 keV

NUCLEAR REACTIONS 10B(d, n)11C, E<160 keV; measured σ, astrophysical S factors, neutron spectra, angular distributions. Comparison with DWBA and Hauser-Feshbach calculations.

doi: 10.1103/PhysRevC.77.054607
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1626.


2008TO06      Phys.Rev. C 77, 054610 (2008)

A.P.Tonchev, C.T.Angell, M.Boswell, A.S.Crowell, B.Fallin, S.Hammond, C.R.Howell, A.Hutcheson, H.J.Karwowski, J.H.Kelley, R.S.Pedroni, W.Tornow, J.A.Becker, D.Dashdorj, J.Kenneally, R.A.Macri, M.A.Stoyer, C.Y.Wu, E.Bond, M.B.Chadwick, J.Fitzpatrick, T.Kawano, R.S.Rundberg, A.Slemmons, D.J.Vieira, J.B.Wilhelmy

Measurement of the 241Am(n, 2n) reaction cross section from 7.6 MeV to 14.5 MeV

NUCLEAR REACTIONS 241Am(n, 2n), E=7.6-14.5 MeV; measured Eγ, Iγ, neutron time-of-flight spectra, σ, excitation functions. Comparison with evaluated data in ENDF/B-VII and JENDL-3.3.

doi: 10.1103/PhysRevC.77.054610
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14172.


2006GO11      Phys.Rev. C 73, 034001 (2006)

D.E.Gonzalez Trotter, F.Salinas Meneses, W.Tornow, C.R.Howell, Q.Chen, A.S.Crowell, C.D.Roper, R.L.Walter, D.Schmidt, H.Witala, W.Glockle, H.Tang, Z.Zhou, I.Slaus

Neutron-deuteron breakup experiment at En = 13 MeV: Determination of the 1S0 neutron-neutron scattering length ann

NUCLEAR REACTIONS 2H(n, 2n), E=13 MeV; measured En, nn-coin, σ(θ(1), θ(2)); deduced neutron-neutron scattering length, no significant three-nucleon force effects. Comparison with model predictions and previous measurements.

doi: 10.1103/PhysRevC.73.034001
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14106.


2006SA03      Phys.Rev. C 73, 015801 (2006)

A.Sabourov, M.W.Ahmed, M.A.Blackston, A.S.Crowell, C.R.Howell, B.A.Perdue, K.Sabourov, A.Tonchev, H.R.Weller, R.M.Prior, M.C.Spraker

Astrophysical S factor for the 7Li(d, n0)8Be and 7Li(d, n1)8Be reactions

NUCLEAR REACTIONS 7Li(d, n), E=45, 60, 80 keV; measured neutron spectra, σ(E); deduced integrated yields, astrophysical S-factor.

doi: 10.1103/PhysRevC.73.015801
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1408.


2006SA49      Phys.Rev.C 74, 064611 (2006)

A.Sabourov, M.W.Ahmed, M.A.Blackston, A.S.Crowell, C.R.Howell, K.Joshi, S.O.Nelson, B.A.Perdue, K.Sabourov, A.Tonchev, H.R.Weller, R.M.Prior, M.C.Spraker, B.Braizinha, N.Kalantar-Nayestanaki

The 7Li(d(pol), n0)8Be and 7Li(d(pol), n1)8Be reactions below 160 keV

NUCLEAR REACTIONS 7Li(polarized d, n), E=80, 130, 160 keV; measured σ(E, θ), analyzing powers; deduced transition matrix elements. Finite-range DWBA calculations, coupled reaction channels calculations.

doi: 10.1103/PhysRevC.74.064611
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1529.


2003NE01      Phys.Lett. 552B, 29 (2003)

E.M.Neidel, W.Tornow, D.E.Gonzalez Trotter, C.R.Howell, A.S.Crowell, R.A.Macri, R.L.Walter, G.J.Weisel, J.Esterline, H.Witala, B.J.Crowe III, R.S.Pedroni, D.M.Markoff

A new twist to the long-standing three-nucleon analyzing power puzzle

NUCLEAR REACTIONS 2H(polarized n, n), E=1.2, 1.9 MeV; measured Ay(θ); deduced possible electromagnetic effect. Comparison with theory, proton scattering data.

doi: 10.1016/S0370-2693(02)03106-4
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13863.


2003TO32      Mod.Phys.Lett. A 18, 258 (2003)

W.Tornow, E.M.Neidel, D.E.Gonzalez Trotter, C.R.Howell, A.S.Crowell, R.A.Macri, R.L.Walter, G.J.Weisel, J.Esterline, H.Witala, B.J.Crowe III, R.S.Pedroni, D.M.Markoff

Electromagnetic effects and the long-standing three-nucleon analyzing power puzzle

NUCLEAR REACTIONS 2H(polarized n, n), E=1.2, 1.9 MeV; measured Ay(θ); deduced electromagnetic effects.

doi: 10.1142/S0217732303010314
Citations: PlumX Metrics


2001ZH09      Nucl.Phys. A684, 545c (2001)

Z.Zhou, A.S.Crowell, J.Deng, W.Glockle, C.R.Howell, H.Kamada, B.Qi, R.A.Macri, X.Ruan, H.Tang, R.L.Walter, H.Witala

The Space-Star Anomaly in nd Breakup at 25 MeV

NUCLEAR REACTIONS 2H(n, np), E=25 MeV; measured nn-coin, σ(θ). Comparison with model predictions.

doi: 10.1016/S0375-9474(01)00389-X
Citations: PlumX Metrics


1999GO22      Phys.Rev.Lett. 83, 3788 (1999)

D.E.Gonzalez Trotter, F.Salinas, Q.Chen, A.S.Crowell, W.Glockle, C.R.Howell, C.D.Roper, D.Schmidt, I.Slaus, H.Tang, W.Tornow, R.L.Walter, H.Witala, Z.Zhou

New Measurement of the 1S0 Neutron-Neutron Scattering Length using the Neutron-Proton Scattering Length as a Standard

NUCLEAR REACTIONS 2H(n, np), E ≈ 13 MeV; measured neutron spectra, proton spectra, σ(θ(n), θ(p)); deduced nn and np scattering lengths.

doi: 10.1103/PhysRevLett.83.3788
Citations: PlumX Metrics


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