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NSR database version of April 11, 2024.

Search: Author = E.D.Johnson

Found 14 matches.

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2020HU10      Phys.Rev. C 102, 014615 (2020)

C.Hunt, G.V.Rogachev, S.Almaraz-Calderon, A.Aprahamian, M.Avila, L.T.Baby, B.Bucher, V.Z.Goldberg, E.D.Johnson, K.W.Kemper, A.N.Kuchera, W.P.Tan, I.Wiedenhover

Observation of T = 3/2 isobaric analog states in 9Be using p + 8Li resonance scattering

NUCLEAR REACTIONS 1H(8Li, 8Li), E(cm)=1.46-2.3 MeV, [secondary 8Li radioactive beam from 2H(7Li, 8Li), E=23.5, 27 MeV primary reaction]; measured energies of light and heavy recoils, (light recoils)(heavy recoils)-coin, differential σ(θ, E) using two annular Silicon strip detectors at RESOLUT radioactive nuclear beam facility of the FSU John D. Fox Superconducting Accelerator Laboratory. 9Be; deduced resonances J, π, width, T=3/2 IAS, spectroscopic factors from R-matrix analysis using MINRMATRIX code. Discussed isomirror properties for the T=3/2 A=9 isoquartet. Relevance to study of the structure of neutron-rich exotic nuclei through IAS.

doi: 10.1103/PhysRevC.102.014615
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2600. Data from this article have been entered in the XUNDL database. For more information, click here.


2017KO31      Nucl.Instrum.Methods Phys.Res. A870, 1 (2017)

E.Koshchiy, J.C.Blackmon, G.V.Rogachev, I.Wiedenhover, L.Baby, P.Barber, D.W.Bardayan, J.Belarge, D.Caussyn, E.D.Johnson, K.Kemper, A.N.Kuchera, L.E.Linhardt, K.T.Macon, M.Matos, B.S.Rasco, D.Santiago-Gonzalez

ANASEN: The array for nuclear astrophysics and structure with exotic nuclei

NUCLEAR REACTIONS 4He(6He, 6He), E=7-29 MeV; 4He(14N, p), E=35.6 MeV; measured reaction products, Eα, Iα; deduced σ(θ).

doi: 10.1016/j.nima.2017.07.030
Citations: PlumX Metrics


2014AV04      Phys.Rev. C 90, 024327 (2014)

M.L.Avila, G.V.Rogachev, V.Z.Goldberg, E.D.Johnson, K.W.Kemper, Yu.M.Tchuvil'sky, A.S.Volya

α-cluster structure of 18O

NUCLEAR REACTIONS 4He(14C, α), E=14.9 MeV; measured Eα, Iα, differential σ(E), partial α- and neutron-decay widths at FSU Superconducting linear accelerator facility. 18O; deduced levels, resonances, J, π, widths, reduced α widths. Multilevel, multichannel R-matrix analysis. Discussed rotational bands, and α-cluster structure with reference to those in 16O and 20Ne. Comparison with cluster-nucleon configuration interaction model calculations, and with earlier experimental results.

doi: 10.1103/PhysRevC.90.024327
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2131. Data from this article have been entered in the XUNDL database. For more information, click here.


2013MI05      Phys.Rev. C 87, 054617 (2013)

J.P.Mitchell, G.V.Rogachev, E.D.Johnson, L.T.Baby, K.W.Kemper, A.M.Moro, P.Peplowski, A.S.Volya, I.Wiedenhover

Structure of 8B from elastic and inelastic 7Be+p scattering

NUCLEAR REACTIONS 1H(7Be, 7Be), (7Be, 7Be'), [secondary 7Be from 1H(7Li, 7Bi), E=9 MeV primary reaction], E=18.5, 22, 27.2 MeV; measured particle spectra, (7Be)p-coin, differential σ(E) at FSU accelerator facility. 8B; deduced levels, resonances, J, π, proton and total widths, spectroscopic factors, phase shifts. 7Be(p, p), (p, p'); analysis of excitation function by R-matrix method. 7Li(n, γ); calculated σ as function of excitation energy using TDCSM model. 7Li(n, n), (n, n'), E(cm)=0.1-1.4 MeV; analyzed σ by R-matrix theory. Comparison of σ and phase shifts with predictions of TDCSM model and ab initio no-core shell model coupled with the resonating group method (NCSM/RGM) calculations.

doi: 10.1103/PhysRevC.87.054617
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2028. Data from this article have been entered in the XUNDL database. For more information, click here.


2012GO11      J.Phys.:Conf.Ser. 337, 012008 (2012)

V.Z.Goldberg, B.T.Roeder, G.V.Rogachev, G.G.Chubarian, E.D.Johnson, C.Fu, A.A.Alharbi, M.L.Avila, A.Banu, M.McCleskey, J.P.Mitchell, E.Simmons, G.Tabacaru, L.Trache, R.E.Tribble

Resonance Scattering to Study Exotic Nuclei at the Limits of Stability

NUCLEAR REACTIONS 1H(13O, 13O), E≈11 MeV/nucleon;measured thick target charged reaction products. 14F deduced levels, widths, J, π, σ(θ); calculated 14F resonance levels, widths, J, π, σ(θ) using R-matrix, 14F levels, J, π using shell model and ab initio calculations. 1H(8He, 8He), E=cyclotron; calculated, re-analyzed published results considering virtual 2s resonance in 9He.

doi: 10.1088/1742-6596/337/1/012008
Citations: PlumX Metrics


2012RO32      Prog.Theor.Phys.(Kyoto), Suppl. 196, 184 (2012)

G.V.Rogachev, M.Avila, S.Cherubini, V.Z.Goldberg, M.Gulino, E.D.Johnson, A.N.Kuchera, M.La Cognata, L.Lamia, S.Romano, L.E.Miller, R.G.Pizzone, G.G.Rapisarda, M.L.Sergi, C.Spitaleri, R.E.Tribble, W.H.Trzaska, A.Tumino

Clustering in Non-Self-Conjugate Nuclei

NUCLEAR REACTIONS 9Be(p, α), E(cm)=2-5.5 MeV; 4He(14C, X)18O, E(cm)=2-7 MeV; measured reaction products, Eα, Iα; deduced σ(θ), resonance parameters. Comparison with available data, R-matrix fit.

doi: 10.1143/PTPS.196.184
Citations: PlumX Metrics


2011KU24      Phys.Rev. C 84, 054615 (2011); Erratum Phys.Rev. C 85, 069902 (2012); Erratum Phys.Rev. C 88, 039901 (2013)

A.N.Kuchera, G.V.Rogachev, V.Z.Goldberg, E.D.Johnson, S.Cherubini, M.Gulino, M.La Cognata, L.Lamia, S.Romano, L.E.Miller, R.G.Pizzone, G.G.Rapisarda, M.L.Sergi, C.Spitaleri, R.E.Tribble, W.H.Trzaska, A.Tumino

Molecular structures in T=1 states of 10B

NUCLEAR REACTIONS 1H(9Be, α)6Li*, E=22.3-55.6 MeV; measure Eα, Iα, particle spectra, σ(E, θ). 10B; deduced levels, J, π, isospin, widths, cluster state, highly deformed molecular type rotational band. R-matrix analysis of excitation functions and angular distributions. Comparison with level structure in 10Be.

doi: 10.1103/PhysRevC.84.054615
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1961. Data from this article have been entered in the XUNDL database. For more information, click here.


2010GO16      Phys.Lett. B 692, 307 (2010)

V.Z.Goldberg, B.T.Roeder, G.V.Rogachev, G.G.Chubarian, E.D.Johnson, C.Fu, A.A.Alharbi, M.L.Avila, A.Banu, M.McCleskey, J.P.Mitchell, E.Simmons, G.Tabacaru, L.Trache, R.E.Tribble

First observation of 14F

NUCLEAR REACTIONS 1H(13O, X)14F, E=31 MeV/nucleon; 1H(14O, 14O), E=154 MeV; measured reaction products, proton spectra; deduced σ(θ), J, π, level scheme, resonances. Comparison with shell model calculations.

doi: 10.1016/j.physletb.2010.07.054
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1815. Data from this article have been entered in the XUNDL database. For more information, click here.


2010JO08      J.Phys.:Conf.Ser. 205, 012011 (2010)

E.D.Johnson, G.V.Rogachev, V.Z.Goldberg, S.Brown, D.Robson, A.M.Crisp, P.D.Cottle, C.Fu, J.Giles, B.W.Green, K.W.Kemper, K.Lee, B.T.Roeder, R.E.Tribble

Clustering in N ≠ Z nuclei

NUCLEAR REACTIONS 4He(14C, 14C), E=25 MeV; measured resonance elastic scattering, Eα, Iα(θ); deduced σ, σ(θ); calculated σ, σ(θ) using R-matrix; deduced resonance parameters, α-widths, n-widths. 4He(14C, 18O), E≈1-100 keV; calculated, analyzed reaction data using DWBA σ and Coulomb modified ANC; deduced reaction rates, asymptotic normalization coefficients, influence of cluster resonant and nonresonant capture.

doi: 10.1088/1742-6596/205/1/012011
Citations: PlumX Metrics


2010MI12      Phys.Rev. C 82, 011601 (2010)

J.P.Mitchell, G.V.Rogachev, E.D.Johnson, L.T.Baby, K.W.Kemper, A.M.Moro, P.N.Peplowski, A.Volya, I.Wiedenhover

Low-lying states in 8B

NUCLEAR REACTIONS 1H(7Be, 7Be), (7Be, 7Be'), E=18.5, 22.0 MeV, [secondary 7Be beam from primary 1H(7Li, 7Be) reaction]; measured recoil proton and 7Be spectra, (proton)(7Be)-coin, excitation functions and angular distributions. 8B; deduced levels, J, π, partial proton widths and total widths. R-matrix and time-dependent continuum shell model (TDCSM) analysis. Comparison with low-lying level structure of mirror nucleus 8Li.

doi: 10.1103/PhysRevC.82.011601
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1809. Data from this article have been entered in the XUNDL database. For more information, click here.


2009JO07      Phys.Rev. C 80, 045805 (2009)

E.D.Johnson, G.V.Rogachev, J.Mitchell, L.Miller, K.W.Kemper

14C(α, γ) reaction rate

NUCLEAR REACTIONS 6Li(14C, d), E=8.8 MeV; 7Li(14C, t), E=11.5 MeV; measured Ed, Id, Et, It, σ, σ(θ). 18O; deduced levels, J, π. 14C(α, γ)18O; deduced astrophysical S factors, reaction rates, and asymptotic normalization coefficients (ANCs).

doi: 10.1103/PhysRevC.80.045805
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1761. Data from this article have been entered in the XUNDL database. For more information, click here.


2009JO08      Eur.Phys.J. A 42, 135 (2009)

E.D.Johnson, G.V.Rogachev, V.Z.Goldberg, S.Brown, D.Robson, A.M.Crisp, P.D.Cottle, C.Fu, J.Giles, B.W.Green, K.W.Kemper, K.Lee, B.T.Roeder, R.E.Tribble

Extreme α-clustering in the 18O nucleus

NUCLEAR REACTIONS 4He(14C, 14C), E=25 MeV; measured σ(E, θ). 18O; deduced levels, widths, J, π using R-matrix analysis.

doi: 10.1140/epja/i2009-10887-1
Citations: PlumX Metrics

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


2008SK06      Phys.Rev. C 78, 044603 (2008)

B.B.Skorodumov, G.V.Rogachev, A.Aprahamian, V.Z.Goldberg, J.J.Kolata, S.Almaraz, H.Amro, E.D.Johnson, L.O.Lamm, M.Quinn, A.Teymurazyan, A.Woehr

T = 3/2 states in 13C

NUCLEAR REACTIONS 1H, C(11B, 11B), (12B, 12B), E=44.6 MeV; measured σ(θ). 13C; deduced levels, J, π, resonance widths. Comparisons with 13B, 13N, 13O, shell model calculations.

doi: 10.1103/PhysRevC.78.044603
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1658. Data from this article have been entered in the XUNDL database. For more information, click here.


2006JO11      Phys.Rev.Lett. 97, 192701 (2006)

E.D.Johnson, G.V.Rogachev, A.M.Mukhamedzhanov, L.T.Baby, S.Brown, W.T.Cluff, A.M.Crisp, E.Diffenderfer, V.Z.Goldberg, B.W.Green, T.Hinners, C.R.Hoffman, K.W.Kemper, O.Momotyuk, P.Peplowski, A.Pipidis, R.Reynolds, B.T.Roeder

Astrophysical Reaction Rate for the Neutron-Generator Reaction 13C(α, n)16O in Asymptotic Giant Branch Stars

NUCLEAR REACTIONS 6Li(13C, d), E=8.0, 8.5 MeV; measured deuteron spectra, σ(E, θ); deduced asymptotic normalization coefficient for subthreshold resonance. 13C(α, n), E ≈ 0-1 MeV; deduced astrophysical S-factor, reaction rates.

doi: 10.1103/PhysRevLett.97.192701
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1470.


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