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NSR database version of April 11, 2024.

Search: Author = J.C.Blackmon

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2023KI10      Eur.Phys.J. A 59, 112 (2023)

S.H.Kim, K.Y.Chae, D.W.Bardayan, J.C.Blackmon, K.A.Chipps, R.Hatarik, K.L.Jones, M.J.Kim, R.L.Kozub, J.F.Liang, C.Matei, B.H.Moazen, C.D.Nesaraja, P.D.O'Malley, S.D.Pain, M.S.Smith

Proton branching ratios in 22Mg or X-ray bursts

NUCLEAR REACTIONS 24Mg(p, t), E=41 MeV; measured reaction products; deduced triton energy spectra. The Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratory (ORNL).

RADIOACTIVITY 22Mg(p) [from 24Mg(p, t), E=41 MeV]; analyzed decay products, p-t coin.; deduced coincident proton energy versus triton energy spectra, 21Na excitation energy spectrum, isotropic and anisotropic proton decay, resonance parameters, reaction rates for 21Na(p, γ) reaction.

doi: 10.1140/epja/s10050-023-01029-0
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2023WO01      Phys.Rev. C 107, 034303 (2023)

M.Wolinska-Cichocka, B.C.Rasco, K.P.Rykaczewski, N.T.Brewer, A.Fijalkowska, M.Karny, R.K.Grzywacz, K.C.Goetz, C.J.Gross, D.W.Stracener, E.F.Zganjar, J.C.Batchelder, J.C.Blackmon, S.Go, B.Heffron, J.Johnson, T.T.King, J.T.Matta, K.Miernik, M.Madurga, E.A.McCutchan, D.Miller, C.D.Nesaraja, S.V.Paulauskas, M.M.Rajabali, S.Taylor, A.A.Sonzogni, E.H.Wang, J.A.Winger, Y.Xiao, C.J.Zachary

Complete β-decay patterns of 142Cs, 142Ba, and 142La determined using total absorption spectroscopy

RADIOACTIVITY 142La, 142Ba, 142Cs(β-)[from 238U(p, F), E=40 MeV]; measured Eγ, Iγ, Eβ, Iβ, γβ-coin, total absorption spectra; deduced T1/2, average gamma energy per decay, β-feeding intensities, decay patterns, σ for the detection of reactor antineutrinos. 142Cs(β-n); deduced β-delayed neutron branching ratio. Comparison with other experimental values and ENSDF evaluation. Modular Total Absorption Spectrometer (MTAS) array of 19 NaI(Tl) coupled with auxiliary Si-strip detectors at the mass separator and Tandem accelerator at Oak Ridge National Laboratory.

doi: 10.1103/PhysRevC.107.034303
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Data from this article have been entered in the XUNDL database. For more information, click here.


2022AN10      Phys.Rev. C 105, 055806 (2022)

M.Anastasiou, I.Wiedenhover, J.C.Blackmon, L.T.Baby, D.D.Caussyn, A.A.Hood, E.Koshchiy, J.C.Lighthall, K.T.Macon, J.J.Parker, T.Rauscher, N.Rijal

Measurement of the 18Ne(α, p)21Na reaction with the ANASEN active-target detector system at Ec.m. = 2.5-4 MeV

NUCLEAR REACTIONS 4He(18Ne, p), E=2.5-4 MeV; measured reaction products, Ep, Ip, (particle)p-coin; deduced σ(E) to ground state, bound states, unbound sates and total σ(E), astrophysical reaction rates. Comparison to other experimental data and Hauser-Feschbach calculations. Active-target (filled with 4He) detector Array for Nuclear Astrophysics and Structure with Exotic Nuclei (ANASEN) at the John D. Fox Superconducting Accelerator Laboratory of Florida State University.

doi: 10.1103/PhysRevC.105.055806
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2770.


2022LA09      Phys.Rev. C 106, 025802 (2022)

A.Laminack, J.C.Blackmon, A.Couture, J.P.Greene, M.Krticka, K.T.Macon, S.Mosby, C.Prokop, J.L.Ullmann, S.Valenta

Measurement of neutron-capture cross sections of 70, 72Ge using the DANCE facility

NUCLEAR REACTIONS 70,72Ge(n, γ), E=0.000001-1 MeV; measured Eγ, Iγ, γ sum energy; deduced neutron capture σ(E), Maxwellian averaged σ(E). Comparison to other experimental results and evaluated data from ENDF/B-VIII.0, KADoNiS-v1.0. Presented analysis of the impact of measured σ on stellar nucleosynthesis abundances.Detector for Advanced Neutron Capture Experiments (DANCE) consisting of 160 BaF2 detectors combined into calorimeter at Los Alamos Neutron Science Center (LANSCE, LANL).

doi: 10.1103/PhysRevC.106.025802
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14791.


2022RA11      Phys.Rev. C 105, 064301 (2022)

B.C.Rasco, K.P.Rykaczewski, A.Fijalkowska, M.Karny, M.Wolinska-Cichocka, R.K.Grzywacz, D.W.Stracener, E.F.Zganjar, J.C.Batchelder, J.C.Blackmon, N.T.Brewer, M.P.Cooper, K.C.Goetz, J.W.Johnson, T.King, A.Laminack, J.T.Matta, K.Miernik, M.Madurga, D.Miller, M.M.Rajabali, T.Ruland, P.Shuai, M.Stepaniuk, J.Winger

Deciphering 98Nb β decay with the Modular Total Absorption Spectrometer at ORNL

RADIOACTIVITY 98Nb(β-)[from decay chains of 98Rb and 98Sr produced in 238U(p, F) at HRIBF-ORNL facility]; measured Eγ, Iγ, total absorption γ-ray spectrum using NaI(Tl)-based Modular Total Absorption Spectrometer (MTAS); deduced average γ energy per β decay, and average ν-bar; discussed impact of measured β-feeding pattern on reactor decay heat calculations and predicted detection rates of reactor ν-bar. 98Zr; measured T1/2 with 98Zr and 98Nb in equilibrium, and compared with value in the ENSDF database. 98Mo; deduced levels, β feedings to the g.s. and excited states, logft, conversion electron per β decay from the E0 transition from the first excited 0+ state in 98Mo. Comparison with β feedings and average γ energy in the ENSDF and ENDF/B-VIII.0 databases, and with previous experimental results. Relevance to the study of β- decays of abundantly produced fission products in nuclear reactors.

doi: 10.1103/PhysRevC.105.064301
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2022SH20      Phys.Rev. C 105, 054312 (2022)

P.Shuai, B.C.Rasco, K.P.Rykaczewski, A.Fijalkowska, M.Karny, M.Wolinska-Cichocka, R.K.Grzywacz, C.J.Gross, D.W.Stracener, E.F.Zganjar, J.C.Batchelder, J.C.Blackmon, N.T.Brewer, S.Go, M.Cooper, K.C.Goetz, J.W.Johnson, C.U.Jost, T.T.King, J.T.Matta, J.H.Hamilton, A.Laminack, K.Miernik, M.Madurga, D.Miller, C.D.Nesaraja, S.Padgett, S.V.Paulauskas, M.M.Rajabali, T.Ruland, M.Stepaniuk, E.H.Wang, J.A.Winger

Determination of β-decay feeding patterns of 88Rb and 88Kr using the Modular Total Absorption Spectrometer at ORNL HRIBF

RADIOACTIVITY 88Rb(β-), 88Kr(β-)[from 238U(p, F), E=40 MeV]; measured Eγ, Iγ, Eβ, Iβ; deduced β-intensities, ground state feedings in β-decay. 88Rb; deduced T1/2. Pandemonium effect free measurements. Comparison to other experimental data. Modular Total Absorption Spectrometer (MTAS) NaI(Tl) detector array at Holifield Radioactive Ion Beam Facility (HRIBF) at the Oak Ridge National Laboratory.

doi: 10.1103/PhysRevC.105.054312
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Data from this article have been entered in the XUNDL database. For more information, click here.


2021KU26      Phys.Rev. C 104, 044601 (2021)

K.Kuhn, F.Sarazin, F.M.Nunes, M.A.G.Alvarez, C.Andreoiu, D.W.Bardayan, P.C.Bender, J.C.Blackmon, M.J.G.Borge, R.Braid, B.A.Brown, W.N.Catford, C.Aa.Diget, A.DiPietro, T.E.Drake, P.Figuera, A.B.Garnsworthy, J.Gomez-Camacho, G.Hackman, U.Hager, S.V.Ilyushkin, E.Nacher, P.D.O'Malley, A.Perea, V.Pesudo, S.T.Pittman, D.Smalley, C.E.Svensson, O.Tengblad, P.Thompson, C.Unsworth, Z.M.Wang

Experimental study of the nature of the 1- and 2- excited states in 10Be using the 11Be(p, d) reaction in inverse kinematics

NUCLEAR REACTIONS 1H(11Be, d)10Be, (11Be, p), (11Be, p'), E=9.93 MeV/nucleon, [secondary 11Be beam from Ta(p, X), E=479 MeV primary reaction at TRIUMF cyclotron, followed by extraction of 11Be using Resonant Ionization Laser Ion Source (TRILIS) and accelerated through the ISAC-I and ISAC-II accelerators]; measured E(d), I(d), E(p), I(p), elastic and inelastic σ(θ) of outgoing protons, σ(θ) for deuterons using silicon telescopes, Eγ, Iγ, dγ-coin using TIGRESS array of 12 HPGe detectors for γ detection. 10Be; deduced levels, spectroscopic factors for 5960, 1- and 6263, 2- levels, mixed configurations with halo and cluster structures. Comparison of spectroscopic factors with predictions of shell model. Reaction kinematics and angular distributions analyzed using two versions of transfer reaction model considering one-step and two-step processes. Comparison with previous experimental results from RCNP and ISOLDE-CERN.

doi: 10.1103/PhysRevC.104.044601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2682.


2020HA03      Phys.Rev. C 101, 015804 (2020)

M.R.Hall, D.W.Bardayan, T.Baugher, A.Lepailleur, S.D.Pain, A.Ratkiewicz, S.Ahn, J.M.Allen, J.T.Anderson, A.D.Ayangeakaa, J.C.Blackmon, S.Burcher, M.P.Carpenter, S.M.Cha, K.Y.Chae, K.A.Chipps, J.A.Cizewski, M.Febbraro, O.Hall, J.Hu, C.L.Jiang, K.L.Jones, E.J.Lee, P.D.O'Malley, S.Ota, B.C.Rasco, D.Santiago-Gonzalez, D.Seweryniak, H.Sims, K.Smith, W.P.Tan, P.Thompson, C.Thornsberry, R.L.Varner, D.Walter, G.L.Wilson, S.Zhu

γ-ray spectroscopy of astrophysically important states in 39Ca

NUCLEAR REACTIONS 40Ca(3He, αγ)39Ca, E=30 MeV; Measured Eγ, Iγ, Eα, Iα, αγ-coin, reaction products using the GODDESS array (Gammasphere for γ detection and ORRUBA for particle detection) at the ATLAS-ANL facility. 39Ca; deduced levels, J, π, γ-branching ratios. 38K(p, γ)39Ca, T=0.1-0.4 GK; deduced resonance parameters, astrophysical reaction rates. Discussed impact on abundances of isotopes created at the endpoint of nova nucleosynthesis.

doi: 10.1103/PhysRevC.101.015804
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2454. Data from this article have been entered in the XUNDL database. For more information, click here.


2020HA31      Phys.Rev. C 102, 045802 (2020)

M.R.Hall, D.W.Bardayan, T.Baugher, A.Lepailleur, S.D.Pain, A.Ratkiewicz, S.Ahn, J.M.Allen, J.T.Anderson, A.D.Ayangeakaa, J.C.Blackmon, S.Burcher, M.P.Carpenter, S.M.Cha, K.Y.Chae, K.A.Chipps, J.A.Cizewski, M.Febbraro, O.Hall, J.Hu, C.L.Jiang, K.L.Jones, E.J.Lee, P.D.O'Malley, S.Ota, B.C.Rasco, D.Santiago-Gonzalez, D.Seweryniak, H.Sims, K.Smith, W.P.Tan, P.Thompson, C.Thornsberry, R.L.Varner, D.Walter, G.L.Wilson, S.Zhu

19Ne level structure for explosive nucleosynthesis

NUCLEAR REACTIONS 19F(3He, t)19Ne, E=30 MeV; measured reaction products, E(t), I(t), Eγ, Iγ, (triton)γ-, and (triton)γγ-coin using ORRUBA array with Micron QQQ5 telescopes for tritons and Gammasphere array for γ rays at ATLAS-ANL facility. 19Ne; deduced levels, J, π, γ-branching ratios. Comparison with earlier experimental results and with evaluated data. 18F(p, α)15O, E(cm)<0.9 MeV; calculated astrophysical S factors, and reaction rates at temperature of 0.06 to 0.4 GK.

doi: 10.1103/PhysRevC.102.045802
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Data from this article have been entered in the XUNDL database. For more information, click here.


2019AH05      Phys.Rev. C 100, 044613 (2019)

S.Ahn, D.W.Bardayan, K.L.Jones, A.S.Adekola, G.Arbanas, J.C.Blackmon, K.Y.Chae, K.A.Chipps, J.A.Cizewski, S.Hardy, M.E.Howard, R.L.Kozub, B.Manning, M.Matos, C.D.Nesaraja, P.D.O'Malley, S.D.Pain, W.A.Peters, S.T.Pittman, B.C.Rasco, M.S.Smith, I.Spassova

Direct neutron capture cross section on 80Ge and probing shape coexistence in neutron-rich nuclei

NUCLEAR REACTIONS 2H(80Ge, p), (80Ge, d), E=310 MeV; measured energies and angles of light-ion ejectiles, Ep, Ip, E(d), I(d), (80Ge)p- and (80Ge)d-coin, angular distributions of ejected proton using various silicon detectors at the Holifield Radioactive Ion Beam Facility at ORNL. Proton angular distributions analyzed using adiabatic wave approximation including finite range effects (ADWAFR) using FRESCO code, and by DWBA. 81Ge; deduced levels, J, π, spectroscopic factors, configurations, region of shape coexistence around N≈50. Systematics of low-lying levels in N=49 isotones 81Ge, 83Se, 85Kr and 87Sr. Discussed implications for the magic nature of 78Ni. 80Ge(n, γ), E=0.01-3 MeV; calculated σ(E) for r-process simulations using direct-semidirect (DSD) model and the CUPIDO code.

doi: 10.1103/PhysRevC.100.044613
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2441. Data from this article have been entered in the XUNDL database. For more information, click here.


2019HA08      Phys.Rev.Lett. 122, 052701 (2019)

M.R.Hall, D.W.Bardayan, T.Baugher, A.Lepailleur, S.D.Pain, A.Ratkiewicz, S.Ahn, J.M.Allen, J.T.Anderson, A.D.Ayangeakaa, J.C.Blackmon, S.Burcher, M.P.Carpenter, S.M.Cha, K.Y.Chae, K.A.Chipps, J.A.Cizewski, M.Febbraro, O.Hall, J.Hu, C.L.Jiang, K.L.Jones, E.J.Lee, P.D.O'Malley, S.Ota, B.C.Rasco, D.Santiago-Gonzalez, D.Seweryniak, H.Sims, K.Smith, W.P.Tan, P.Thompson, C.Thornsberry, R.L.Varner, D.Walter, G.L.Wilson, S.Zhu

Key 19Ne States Identified Affecting γ-Ray Emission from 18F in Novae

NUCLEAR REACTIONS 19F(3He, t)19Ne, E=30 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, S-factor, reaction rates, resonance energies. Comparison with available data.

doi: 10.1103/PhysRevLett.122.052701
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Data from this article have been entered in the XUNDL database. For more information, click here.


2019HA14      Phys.Rev. C 99, 035805 (2019)

M.R.Hall, D.W.Bardayan, T.Baugher, A.Lepailleur, S.D.Pain, A.Ratkiewicz, S.Ahn, J.M.Allen, J.T.Anderson, A.D.Ayangeakaa, J.C.Blackmon, S.Burcher, M.P.Carpenter, S.M.Cha, K.Y.Chae, K.A.Chipps, J.A.Cizewski, M.Febbraro, O.Hall, J.Hu, C.L.Jiang, K.L.Jones, E.J.Lee, P.D.O'Malley, S.Ota, B.C.Rasco, D.Santiago-Gonzalez, D.Seweryniak, H.Sims, K.Smith, W.P.Tan, P.Thompson, C.Thornsberry, R.L.Varner, D.Walter, G.L.Wilson, S.Zhu

New γ-ray transitions observed in 19Ne with implications for the 15O(α, γ)19Ne reaction rate

NUCLEAR REACTIONS 19F(3He, t), E=30 MeV; measured triton spectra, Eγ, Iγ, tγ- and γγ-coin using Gammasphere array for γ detection with the silicon detector array ORRUBA Dual Detectors for Experimental Structure Studies (GODDESS) at ATLAS-ANL facility. 19Ne; deduced levels, J, π, and γ-branching ratios for the decay of 4.14- and 4.20-MeV states. 15O(α, γ)19Ne, E≈18-180 keV; calculated fractional contribution of the corrected branching ratios for the 4.14 MeV, 7/2- and 4.20 MeV, 9/2- states in 19Ne to astrophysical reaction rate, which is of significance in breakout from the hot CNO cycle in type I x-ray bursts. Comparison with previous experimental values.

doi: 10.1103/PhysRevC.99.035805
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Data from this article have been entered in the XUNDL database. For more information, click here.


2019PA21      Phys.Rev. C 99, 045807 (2019)

S.N.Paneru, C.R.Brune, R.Giri, R.J.Livesay, U.Greife, J.C.Blackmon, D.W.Bardayan, K.A.Chipps, B.Davids, D.S.Connolly, K.Y.Chae, A.E.Champagne, C.Deibel, K.L.Jones, M.S.Johnson, R.L.Kozub, Z.Ma, C.D.Nesaraja, S.D.Pain, F.Sarazin, J.F.Shriner, D.W.Stracener, M.S.Smith, J.S.Thomas, D.W.Visser, C.Wrede

s-wave scattering lengths for the 7Be + p system from an R-matrix analysis

NUCLEAR REACTIONS 1H(7Be, 7Be), (7Be, 7Be'), E=4-27 MeV; 12C(7Be, 7Be), E=7, 14 meV; measured scattered ions, differential σ(θ) using (CH2)n target and segmented Silicon Detector Array (SIDAR) for scattered ion detection at ORNL-HRIBF; deduced s-wave scattering lengths, R-matrix analysis of elastic and inelastic scattering data; analyzed cross-section data from Louvain-la-Neuve reported in 2003An06 reference. Comparison with previous experimental values, and optical model calculations. Relevance to astrophysical S factor for 7Be(p, γ) reaction. 8B; verified levels at 1.9, 2.21 and 9.0 MeV.

doi: 10.1103/PhysRevC.99.045807
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2695. Data from this article have been entered in the XUNDL database. For more information, click here.


2019RI01      Phys.Rev.Lett. 122, 182701 (2019)

N.Rijal, I.Wiedenhover, J.C.Blackmon, M.Anastasiou, L.T.Baby, D.D.Caussyn, P.Hoflich, K.W.Kemper, E.Koshchiy, G.V.Rogachev

Measurement of d + 7Be Cross Sections for Big-Bang Nucleosynthesis

NUCLEAR REACTIONS 2H(7Be, p), E=19.7 MeV; measured reaction products, Ep, Ip, Eα, Iα. 9B; deduced σ, resonance energies and widths, S-factor, reaction rates.

doi: 10.1103/PhysRevLett.122.182701
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2459. Data from this article have been entered in the XUNDL database. For more information, click here.


2017AF02      Phys.Rev. C 96, 035801 (2017)

L.Afanasieva, J.C.Blackmon, C.M.Deibel, J.Lai, L.E.Linhardt, B.C.Rasco, D.Seweryniak, M.Alcorta, M.P.Carpenter, J.A.Clark, C.R.Hoffman, R.V.F.Janssens, S.Zhu

γ spectroscopy of states in 32Cl relevant for the 31S(p, γ)32Cl reaction rate

NUCLEAR REACTIONS 10B(24Mg, 2n)32Cl, E=75 MeV; measured Eγ, Iγ, γγ-, (32Cl recoils)γ-, and (32Cl recoils)γγ-coin using Fragment Mass Analyzer (FMA) and Gammasphere array at ATLAS-ANL facility. 32Cl; deduced levels, J, π, energies, strengths, σ, Γγ and Γp of resonances. 31S(p, γ)32Cl, T=0.1-1.0 GK; deduced astrophysical reaction rates.

doi: 10.1103/PhysRevC.96.035801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2269. Data from this article have been entered in the XUNDL database. For more information, click here.


2017AR04      Prog.Part.Nucl.Phys. 94, 1 (2017)

A.Arcones, D.W.Bardayan, T.C.Beers, L.A.Bernstein, J.C.Blackmon, B.Messer, B.A.Brown, E.F.Brown, C.R.Brune, A.E.Champagne, A.Chieffi, A.J.Couture, P.Danielewicz, R.Diehl, M.El Eid, J.E.Escher, B.D.Fields, C.Frohlich, F.Herwig, W.R.Hix, C.Iliadis, W.G.Lynch, G.C.McLaughlin, B.S.Meyer, A.Mezzacappa, F.Nunes, B.W.O'Shea, M.Prakash, B.Pritychenko, S.Reddy, E.Rehm, G.Rogachev, R.E.Rutledge, H.Schatz, M.S.Smith, I.H.Stairs, A.W.Steiner, T.E.Strohmayer, F.X.Timmes, D.M.Townsley, M.Wiescher, R.G.T.Zegers, M.Zingale

White paper on nuclear astrophysics and low energy nuclear physics Part 1: Nuclear astrophysics

doi: 10.1016/j.ppnp.2016.12.003
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2017BA42      Phys.Rev. C 96, 055806 (2017)

D.W.Bardayan, K.A.Chipps, S.Ahn, J.C.Blackmon, S.Carmichael, U.Greife, K.L.Jones, J.Jose, A.Kontos, R.L.Kozub, L.Linhardt, B.Manning, M.Matos, P.D.O'Malley, S.Ota, S.D.Pain, W.A.Peters, S.T.Pittman, A.Sachs, K.T.Schmitt, M.S.Smith, P.Thompson

Spectroscopic study of 20Ne+p reactions using the JENSA gas-jet target to constrain the astrophysical 18F (p, α)15O rate

NUCLEAR REACTIONS 20Ne(p, d), (p, 3He), E=30 MeV; measured E(d), I(d), 3He spectrum, particle identification spectrum, σ(θ) using SIDAR silicon detector array, and JENSA natural Ne gas target at Holifield Radioactive Ion Beam Facility (HRIBF). DWBA analysis using optical model parameters. 19Ne, 18F; deduced levels, and compared with previous experimental results. 18F(p, α)15O; deduced coefficients to parametrize the astrophysical reaction rates.

doi: 10.1103/PhysRevC.96.055806
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2282. 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
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2017KU27      Phys.Rev. C 96, 045812 (2017)

S.A.Kuvin, J.Belarge, L.T.Baby, J.Baker, I.Wiedenhover, P.Hoflich, A.Volya, J.C.Blackmon, C.M.Deibel, H.E.Gardiner, J.Lai, L.E.Linhardt, K.T.Macon, B.C.Rasco, N.Quails, K.Colbert, D.L.Gay, N.Keeley

Measurement of 17F (d, n) 18Ne and the impact on the 17F (p, γ) 18Ne reaction rate for astrophysics

NUCLEAR REACTIONS 2H(17F, n)18Ne, E=95.5 MeV, [secondary 17F beam from 2H(16O, n) primary reaction using RESOLUT RIB facility at the accelerator Laboratory of Florida State University]; measured reaction products, time-of-flight, E(n), I(n), E(p), I(p), Eγ, γγ-, (particle)γ-, and (17F)p-coin using RESONEUT detector system. 18Ne; deduced center-of-mass resonance-energy spectrum from invariant-mass analysis, levels, proton resonances, J, π, σ, spectroscopic factors, Γp, configurations, asymptotic normalization coefficients (ANCs). Coupled reaction-channel (CRC) calculation. 17F(p, γ), T9=0.04-0.9; deduced direct-capture reaction rates for astrophysical hot CNO cycles in novas. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.96.045812
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2277. Data from this article have been entered in the XUNDL database. For more information, click here.


2017RA06      Acta Phys.Pol. B48, 507 (2017)

B.C.Rasco, A.Fijalkowska, K.P.Rykaczewski, M.Wolinska-Cichocka, M.Karny, R.K.Grzywacz, K.C.Goetz, C.J.Gross, D.W.Stracener, E.F.Zganjar, J.C.Batchelder, J.C.Blackmon, N.T.Brewer, T.King, K.Miernik, S.V.Paulauskas, M.M.Rajabali, J.A.Winger

β Decays of 92Rb, 96gsY, and 142Cs Measured with the Modular Total Absorption Spectrometer and the Influence of γ Multiplicity on Total Absorption Spectrometry Measurements

RADIOACTIVITY 92Rb, 96Y, 142Cs(β-); measured Eγ, Iγ, Eβ, Iβ, En, In using MTAS (Modular Total Absorption Spectrometer); deduced γ multiplicity, ν-bar energy spectrum corrections, β-feeding intensities of individual level decays to the total MTAS data. Results for ν-bar vs energy compared with 2007 ENSDF data.

doi: 10.5506/APhysPolB.48.507
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2017RA10      Phys.Rev. C 95, 054328 (2017)

B.C.Rasco, K.P.Rykaczewski, A.Fijalkowska, M.Karny, M.Wolinska-Cichocka, R.K.Grzywacz, C.J.Gross, D.W.Stracener, E.F.Zganjar, J.C.Blackmon, N.T.Brewer, K.C.Goetz, J.W.Johnson, C.U.Jost, J.H.Hamilton, K.Miernik, M.Madurga, D.Miller, S.Padgett, S.V.Paulauskas, A.V.Ramayya, E.H.Spejewski

Complete β-decay pattern for the high-priority decay-heat isotopes 137I and 137Xe determined using total absorption spectroscopy

RADIOACTIVITY 137I, 137Xe(β-)[from U(p, F), E=50 MeV]; 137I(β-n); measured Eγ, Iγ, total absorption gamma-ray spectra using Modular Total Absorption Spectrometer (MTAS) at ORNL; deduced beta-delayed neutron spectrum, beta-delayed neutron emission probability for 137I decay, Iβ feedings, ratio of MTAS measured γ decay heat to calculated γ decay heat for thermal neutrons+235U. Comparison with the evaluated data in the ENSDF database at NNDC.

doi: 10.1103/PhysRevC.95.054328
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2016BE32      Phys.Rev.Lett. 117, 182701 (2016)

J.Belarge, S.A.Kuvin, L.T.Baby, J.Baker, I.Wiedenhover, P.Hoflich, A.Volya, J.C.Blackmon, C.M.Deibel, H.E.Gardiner, J.Lai, L.E.Linhardt, K.T.Macon, E.Need, B.C.Rasco, N.Quails, K.Colbert, D.L.Gay, N.Keeley

Experimental Investigation of the 19Ne(p, γ)20Na Reaction Rate and Implications for Breakout from the Hot CNO Cycle

NUCLEAR REACTIONS 2H(19Ne, n), E=86 MeV; measured reaction products, Ep, Ip; deduced energy levels, J, π, properties of low-lying resonances, astrophysical reaction rates. Comparison with available data.

doi: 10.1103/PhysRevLett.117.182701
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2016RA25      Phys.Rev.Lett. 117, 092501 (2016)

B.C.Rasco, M.Wolinska-Cichocka, A.Fijalkowska, K.P.Rykaczewski, M.Karny, R.K.Grzywacz, K.C.Goetz, C.J.Gross, D.W.Stracener, E.F.Zganjar, J.C.Batchelder, J.C.Blackmon, N.T.Brewer, S.Go, B.Heffron, T.King, J.T.Matta, K.Miernik, C.D.Nesaraja, S.V.Paulauskas, M.M.Rajabali, E.H.Wang, J.A.Winger, Y.Xiao, C.J.Zachary

Decays of the Three Top Contributors to the Reactor ν(bar)e High-Energy Spectrum, 92Rb, 96gsY, and 142Cs, Studied with Total Absorption Spectroscopy

RADIOACTIVITY 92Rb, 96Y, 142Cs(β-), (β-n) [from 238U(p, X), E=40 MeV]; measured decay products, Eγ, Iγ; deduced β-feeding intensity, impact on a reactor anti-neutrino spectrum. Comparison with available data.

doi: 10.1103/PhysRevLett.117.092501
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2016WI03      Phys.Lett. B 759, 417 (2016)

G.L.Wilson, W.N.Catford, N.A.Orr, C.Aa.Diget, A.Matta, G.Hackman, S.J.Williams, I.C.Celik, N.L.Achouri, H.Al Falou, R.Ashley, R.A.E.Austin, G.C.Ball, J.C.Blackmon, A.J.Boston, H.C.Boston, S.M.Brown, D.S.Cross, M.Djongolov, T.E.Drake, U.Hager, S.P.Fox, B.R.Fulton, N.Galinski, A.B.Garnsworthy, D.Jamieson, R.Kanungo, K.G.Leach, J.N.Orce, C.J.Pearson, M.Porter-Peden, F.Sarazin, E.C.Simpson, S.Sjue, D.Smalley, C.Sumithrarachchi, S.Triambak, C.Unsworth, R.Wadsworth

Shell evolution approaching the N = 20 island of inversion: Structure of 26Na

NUCLEAR REACTIONS 2H(25Na, pγ)26Na, E=5 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ(θ), energy levels, J, π, level scheme. Comparison with available data.

doi: 10.1016/j.physletb.2016.05.093
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2015BA51      Phys.Lett. B 751, 311 (2015)

D.W.Bardayan, K.A.Chipps, S.Ahn, J.C.Blackmon, R.J.deBoer, U.Greife, K.L.Jones, A.Kontos, R.L.Kozub, L.Linhardt, B.Manning, M.Matos, P.D.O'Malley, S.Ota, S.D.Pain, W.A.Peters, S.T.Pittman, A.Sachs, K.T.Schmitt, M.S.Smith, P.Thompson

The first science result with the JENSA gas-jet target: Confirmation and study of a strong subthreshold 18F(p, α)15O resonance

NUCLEAR REACTIONS 20Ne(p, d), E=30 MeV; measured reaction products; deduced deuteron σ(θ), excitation energies, resonance J. Distorted-wave Born approximation (DWBA) calculations using the computer code TWOFNR7.

NUCLEAR REACTIONS 18F(p, α), E(cm)<1 MeV; calculated astrophysical reaction rate, S-factor with the R-matrix code AZURE2.

doi: 10.1016/j.physletb.2015.10.073
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2015CA03      Acta Phys.Pol. B46, 527 (2015)

W.N.Catford, I.C.Celik, G.L.Wilson, A.Matta, N.A.Orr, C.Aa.Diget, P.Adsley, H.Al Falou, R.Ashley, R.A.E.Austin, G.C.Ball, J.C.Blackmon, A.J.Boston, H.C.Boston, S.M.Brown, D.S.Cross, M.Djongolov, T.E.Drake, U.Hager, S.P.Fox, B.R.Fulton, N.Galinski, A.B.Garnsworthy, G.Hackman, D.Jamieson, R.Kanungo, K.Leach, J-P.Martin, J.N.Orce, C.J.Pearson, M.Porter-Peden, F.Sarazin, S.Sjue, C.Sumithrarachchi, C.E.Svensson, S.Triambak, C.Unsworth, R.Wadsworth, S.J.Williams

Structure of 26Na via a Novel Technique Using (d, pγ) with a Radioactive 25Na Beam

NUCLEAR REACTIONS 2H(25Na, X)26Na, E not given; measured reaction products, Eγ, Iγ; deduced excited states, J, π.

doi: 10.5506/APhysPolB.46.527
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2015CH50      Phys.Rev. C 92, 034325 (2015)

K.A.Chipps, S.D.Pain, U.Greife, R.L.Kozub, D.W.Bardayan, J.C.Blackmon, A.Kontos, L.E.Linhardt, M.Matos, S.T.Pittman, A.Sachs, H.Schatz, K.T.Schmitt, M.S.Smith, P.Thompson, for the JENSA Collaboration

Levels in 12N via the 14N(p, t) reaction using the JENSA gas-jet target

NUCLEAR REACTIONS 14N(p, t), E=38 MeV; measured E(t), I(t), σ(θ) using JENSA (Jet Experiments in Nuclear Structure and Astrophysics) gas-target system and SIDAR array at HRIBF-ORNL accelerator facility. 12N; deduced levels, L-transfers, J, π. DWBA calculations. Comparison with previous experimental data.

doi: 10.1103/PhysRevC.92.034325
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2015PA23      Phys.Rev.Lett. 114, 212501 (2015)

S.D.Pain, D.W.Bardayan, J.C.Blackmon, S.M.Brown, K.Y.Chae, K.A.Chipps, J.A.Cizewski, K.L.Jones, R.L.Kozub, J.F.Liang, C.Matei, M.Matos, B.H.Moazen, C.D.Nesaraja, J.Okolowicz, P.D.O'Malley, W.A.Peters, S.T.Pittman, M.Ploszajczak, K.T.Schmitt, J.F.Shriner, Jr., D.Shapira, M.S.Smith, D.W.Stracener, G.L.Wilson

Constraint of the Astrophysical 26gAl(p, γ)27Si Destruction Rate at Stellar Temperatures

NUCLEAR REACTIONS 2H(26Al, p), E=117 MeV; measured reaction products, Ep, Ip; deduced σ(θ), spectroscopic factors, astrophysical reaction rates.

doi: 10.1103/PhysRevLett.114.212501
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2014CH56      Nucl.Instrum.Methods Phys.Res. A763, 553 (2014)

K.Chipps, U.Greife, D.W.Bardayan, J.C.Blackmon, A.Kontos, L.E.Linhardt, M.Matos, S.D.Pain, S.T.Pittman, A.Sachs, H.Schatz, K.T.Schmitt, M.S.Smith, P.Thompson, for the JENSA Collaboration

The Jet Experiments in Nuclear Structure and Astrophysics (JENSA) gas jet target

NUCLEAR REACTIONS N(120Sn, 120Sn), E=40 MeV; 15N(α, α), E not given; measured reaction products, Eα, Iα; deduced arbitrary units σ(θ), the capability of JENSA to detect scattered recoils at all angles.

doi: 10.1016/j.nima.2014.06.042
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2014SM01      Phys.Rev. C 89, 024602 (2014)

D.Smalley, F.Sarazin, F.M.Nunes, B.A.Brown, P.Adsley, H.Al Falou, C.Andreoiu, B.Baartman, G.C.Ball, J.C.Blackmon, H.C.Boston, W.N.Catford, S.Chagnon-Lessard, A.Chester, R.M.Churchman, D.S.Cross, C.Aa.Diget, D.Di Valentino, S.P.Fox, B.R.Fulton, A.Garnsworthy, G.Hackman, U.Hager, R.Kshetri, J.N.Orce, N.A.Orr, E.Paul, M.Pearson, E.T.Rand, J.Rees, S.Sjue, C.E.Svensson, E.Tardiff, A.Diaz Varela, S.J.Williams, S.Yates

Two-neutron transfer reaction mechanisms in 12C(6He, 4He)14C using a realistic three-body 6He model

NUCLEAR REACTIONS 12C(6He, 6He), (6He, 6He'), E=30 MeV; measured 6He spectra, σ(θ); deduced optical potential parameters. 12C(6He, α)14C, E=30 MeV; measured Eα, Iα, σ(θ) using SHARC charged-particle detector and TIGRESS γ-detection arrays at ISAC-II-TRIUMF facility. 14C; deduced levels, J, π. Low energy elastic and inelastic scattering, and transfer reactions. Comparison with DWBA calculations including realistic three-body model, and shell-model calculations. Discussed higher-order effects in the reaction mechanism.

doi: 10.1103/PhysRevC.89.024602
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2013SC25      Phys.Rev. C 88, 064612 (2013)

K.T.Schmitt, K.L.Jones, S.Ahn, D.W.Bardayan, A.Bey, J.C.Blackmon, S.M.Brown, K.Y.Chae, K.A.Chipps, J.A.Cizewski, K.I.Hahn, J.J.Kolata, R.L.Kozub, J.F.Liang, C.Matei, M.Matos, D.Matyas, B.Moazen, C.D.Nesaraja, F.M.Nunes, P.D.O'Malley, S.D.Pain, W.A.Peters, S.T.Pittman, A.Roberts, D.Shapira, J.F.Shriner, M.S.Smith, I.Spassova, D.W.Stracener, N.J.Upadhyay, A.N.Villano, G.L.Wilson

Reactions of a 10Be beam on proton and deuteron targets

NUCLEAR REACTIONS 2H(10Be, p), (10Be, d), 1H(10Be, p), E=60, 75, 90, 107 MeV; measured Ep, Ip, E(d), I(d), elastic and inelastic σ(θ, E) using SIDAR, ORRUBA, and SuperORRUBA arrays of particle detectors at HRIBF-ORNL facility. 11Be; deduced levels, and spectroscopic factors for halo nucleus. Finite-range adiabatic wave approximation (FR-ADWA) analysis.

doi: 10.1103/PhysRevC.88.064612
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2012AD05      Phys.Rev. C 85, 037601 (2012)

A.S.Adekola, C.R.Brune, D.W.Bardayan, J.C.Blackmon, K.Y.Chae, J.A.Cizewski, K.L.Jones, R.L.Kozub, T.N.Massey, C.D.Nesaraja, S.D.Pain, J.F.Shriner, M.S.Smith, J.S.Thomas

19Ne levels studied with the 18F(d, n)19Ne*(18F+p) reaction

NUCLEAR REACTIONS 2H(18F, n), E=150 MeV; measured α and proton spectra from 19Ne breakup, p(18F)-, α(15O)-coin, angular distributions. 19Ne; deduced resonances, levels, proton widths, α widths, spectroscopic factors, decay branching ratios. DWBA analysis. Comparison with earlier studies. Relevance to destruction of long-lived 18F in novae.

doi: 10.1103/PhysRevC.85.037601
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2012BA28      Phys.Rev. C 85, 065805 (2012)

D.W.Bardayan, J.C.Blackmon, R.L.Kozub, M.Matos, M.S.Smith

Proton decay branching ratio for the 6.15-MeV 18Ne level

NUCLEAR REACTIONS 17F(p, p'), E(cm)=2.0-2.6; analyzed σ(E, θ) data data. 18Ne; deduced proton decay branching ratios from 6.15-MeV level to ground and first excited state in 17F, proton widths; discussed J, π of 6.15-MeV level. Interpretation of 1H(17F, α)14O reaction measurements and extrapolation to the astrophysically important 14O(α, p)17F reaction in αp process in x-ray bursts.

doi: 10.1103/PhysRevC.85.065805
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2012KO36      Phys.Rev.Lett. 109, 172501 (2012)

R.L.Kozub, G.Arbanas, A.S.Adekola, D.W.Bardayan, J.C.Blackmon, K.Y.Chae, K.A.Chipps, J.A.Cizewski, L.Erikson, R.Hatarik, W.R.Hix, K.L.Jones, W.Krolas, J.F.Liang, Z.Ma, C.Matei, B.H.Moazen, C.D.Nesaraja, S.D.Pain, D.Shapira, J.F.Shriner, Jr., M.S.Smith, T.P.Swan

Neutron Single Particle Structure in 131Sn and Direct Neutron Capture Cross Sections

NUCLEAR REACTIONS 2H(130Sn, p), E=630 MeV; 130Sn(n, γ), E<5 MeV;measured reaction products, Ep, Ip; deduced σ(θ), energy levels, J, π, properties of single-particle states, direct-semidirect σ. Comparison with available data.

doi: 10.1103/PhysRevLett.109.172501
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2012LI60      J.Phys.:Conf.Ser. 403, 012036 (2012)

L.E.Linhardt, L.Baby, D.W.Bardayan, J.C.Blackmon, H.Gardiner, E.Johnson, E.Koschiy, M.T.Macon, M.Matos, B.C.Rasco, G.Rogachev, D.Santiago-Gonzalez, I.Wiedenhoever

Measurement of 17F + p reactions with ANASEN

NUCLEAR REACTIONS 1H(17O, α), E(cm)=1.8-3 MeV; 1H(17F, α), (17F, p), E=55 MeV; measured reaction products, Ep, Ip, Eα, Iα. 14N, 14O, 17F; deduced yields, resonances. R-matrix fit. The Array for Nuclear Astrophysics Studies with Exotic Nuclei (ANASEN), RESOLUT facility at FSU.

doi: 10.1088/1742-6596/403/1/012036
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2012SC08      Phys.Rev.Lett. 108, 192701 (2012)

K.T.Schmitt, K.L.Jones, A.Bey, S.H.Ahn, D.W.Bardayan, J.C.Blackmon, S.M.Brown, K.Y.Chae, K.A.Chipps, J.A.Cizewski, K.I.Hahn, J.J.Kolata, R.L.Kozub, J.F.Liang, C.Matei, M.Matos, D.Matyas, B.Moazen, C.Nesaraja, F.M.Nunes, P.D.O'Malley, S.D.Pain, W.A.Peters, S.T.Pittman, A.Roberts, D.Shapira, J.F.Shriner, Jr., M.S.Smith, I.Spassova, D.W.Stracener, A.N.Villano, G.L.Wilson

Halo Nucleus 11Be: A Spectroscopic Study via Neutron Transfer

NUCLEAR REACTIONS 2H(10Be, p)11Be, E=60, 75, 90, 107 MeV; measured reaction products, light ejectiles, Ep, Ip; deduced σ(θ), spectroscopic factors for the first excited and halo neutron states. Comparison with available data.

doi: 10.1103/PhysRevLett.108.192701
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2011AD05      Phys.Rev. C 83, 052801 (2011)

A.S.Adekola, D.W.Bardayan, J.C.Blackmon, C.R.Brune, K.Y.Chae, C.Domizioli, U.Greife, Z.Heinen, M.J.Hornish, K.L.Jones, R.L.Kozub, R.J.Livesay, Z.Ma, T.N.Massey, B.Moazen, C.D.Nesaraja, S.D.Pain, J.F.Shriner Jr, N.D.Smith, M.S.Smith, J.S.Thomas, D.W.Visser, A.V.Voinov

First proton-transfer study of 18F + p resonances relevant for novae

NUCLEAR REACTIONS 2H(18F, n), E=150 MeV; measured α- and 15O-particle spectra. α(15O)-coin, σ(θ), DWBA analysis. 19Ne; deduced levels, J, π, L-transfers, resonances, proton and α-widths. 19Ne-19F mirror symmetry. 18F(p, α)15O; deduced reaction rates. Relevance to nova nucleosynthesis of 18F.

doi: 10.1103/PhysRevC.83.052801
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2011AD24      Phys.Rev. C 84, 054611 (2011)

A.S.Adekola, C.R.Brune, D.W.Bardayan, J.C.Blackmon, K.Y.Chae, C.Domizioli, U.Greife, Z.Heinen, M.J.Hornish, K.L.Jones, R.L.Kozub, R.J.Livesay, Z.Ma, T.N.Massey, B.Moazen, C.D.Nesaraja, S.D.Pain, J.F.Shriner, Jr., N.D.Smith, M.S.Smith, J.S.Thomas, D.W.Visser, A.V.Voinov

Single-nucleon transfer reactions on 18F

NUCLEAR REACTIONS 2H(18F, n)19Ne, (18F, p)19F, [secondary 18F beam from 16O(α, np)18F, E=85 MeV primary reaction], E=150 MeV; measured particle spectra, (15O)α-, (15N)α-coin, σ(θ), proton. 19F, 19Ne; deduced levels, J, π, l-values, spectroscopic factors, proton widths, asymptotic normalization coefficients, isospin mirror levels. DWBA analysis of σ(θ) data. Monte-Carlo simulations. Comparison with previous studies.

doi: 10.1103/PhysRevC.84.054611
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2011BL08      J.Phys.:Conf.Ser. 312, 042001 (2011)

J.C.Blackmon

What do (and don't) we understand about explosive nucleosynthesis?

doi: 10.1088/1742-6596/312/4/042001
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2011JO08      Phys.Rev. C 84, 034601 (2011)

K.L.Jones, F.M.Nunes, A.S.Adekola, D.W.Bardayan, J.C.Blackmon, K.Y.Chae, K.A.Chipps, J.A.Cizewski, L.Erikson, C.Harlin, R.Hatarik, R.Kapler, R.L.Kozub, J.F.Liang, R.Livesay, Z.Ma, B.Moazen, C.D.Nesaraja, S.D.Pain, N.P.Patterson, D.Shapira, J.F.Shriner Jr, M.S.Smith, T.P.Swan, J.S.Thomas

Direct reaction measurements with a 132Sn radioactive ion beam

NUCLEAR REACTIONS 2H(132Sn, p), (132Sn, d), E=630 MeV; measured Ep, Ip, Ed, Id, elastic σ, σ(θ), DWBA analysis. 133Sn; deduced levels, J, π, l values, spectroscopic factors, configurations, asymptotic normalization coefficients. 132Sn; deduced ground-state configuration and structure. Level systematics of N=83 nuclei 133Sn, 135Te, 137Xe, 139Ba, 141Ce, 143Nd and 145Sm.

doi: 10.1103/PhysRevC.84.034601
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2011MA69      Phys.Rev. C 84, 055806 (2011)

M.Matos, J.C.Blackmon, L.E.Linhardt, D.W.Bardayan, C.D.Nesaraja, J.A.Clark, C.M.Deibel, P.D.O'Malley, P.D.Parker

Unbound states of 32Cl and the 31S(p, γ)32Cl reaction rate

NUCLEAR REACTIONS 32S(3He, t), E=30 MeV; measured E(t), I(t), σ(θ), pt(θ). 32Cl; deduced levels, J, π, branching ratios for proton decay to 31S. 28Si(3He, t)28P, E=30 MeV; measured E(t), I(t); deduced levels. 31S(p, γ)32Cl; deduced reaction rates.

doi: 10.1103/PhysRevC.84.055806
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2011MO12      Eur.Phys.J. A 47, 66 (2011)

B.H.Moazen, C.Matei, D.W.Bardayan, J.C.Blackmon, K.Y.Chae, K.A.Chipps, R.Hatarik, K.L.Jones, R.L.Kozub, M.Matos, C.D.Nesaraja, P.D.O'Malley, S.D.Pain, T.Pelham, W.A.Peters, S.T.Pittman, J.F.Shriner, Jr, M.S.Smith

Direct studies of low-energy resonances in 31P(p, α)28Si and 35Cl(p, α)32S

NUCLEAR REACTIONS 31P, 35Cl(p, α), (p, γ), E=low; measured E(particle), I(particle), Eα, Iα(t, θ); deduced resonance energies, strengths.

doi: 10.1140/epja/i2011-11066-7
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2010BA21      Phys.Rev. C 81, 065802 (2010)

D.W.Bardayan, J.C.Blackmon, K.Y.Chae, M.E.Howard, C.Matei, W.Martin, M.Matos, B.H.Moazen, C.D.Nesaraja, W.A.Peters, S.T.Pittman, M.S.Smith, I.Spassova

Inelastic 17F(p, p)17F scattering at Ec.m.=3 MeV and the 14O(α, p)17F reaction rate

NUCLEAR REACTIONS 1H(17F, X), E=52-58 MeV; measured Q-value spectra

doi: 10.1103/PhysRevC.81.065802
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2010CH46      Phys.Rev. C 82, 047302 (2010)

K.Y.Chae, D.W.Bardayan, J.C.Blackmon, K.A.Chipps, R.Hatarik, K.L.Jones, R.L.Kozub, J.F.Liang, C.Matei, B.H.Moazen, C.D.Nesaraja, P.D.O'Malley, S.D.Pain, S.T.Pittman, M.S.Smith

Spin assignments to excited states in 22Na through a 24Mg(p, 3He)22Na reaction measurement

NUCLEAR REACTIONS 24Mg(p, 3He), E=41, 41.5 MeV; measured E(3He), I(3He), σ(θ), differential σ 22Na; deduced levels, J, π, l-transfers. Distorted-wave Born approximation (DWBA) analysis of s(θ) data.

doi: 10.1103/PhysRevC.82.047302
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2010JO03      Nature(London) 465, 454 (2010)

K.L.Jones, A.S.Adekola, D.W.Bardayan, J.C.Blackmon, K.Y.Chae, K.A.Chipps, J.A.Cizewski, L.Erikson, C.Harlin, R.Hatarik, R.Kapler, R.L.Kozub, J.F.Liang, R.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, F.M.Nunes, S.D.Pain, N.P.Patterson, D.Shapira, J.F.Shriner Jr, M.S.Smith, T.P.Swan, J.S.Thomas

The magic nature of 132Sn explored through the single-particle states of 133Sn

NUCLEAR REACTIONS 2H(132Sn, p)133Sn, E=630 MeV; measured Ep, Ip;132Sn; deduced proton σ(θ), Q-value spectrum, properties of single-particle states in 133Sn, magic nature of 132Sn, spectroscopic factors and configurations . DWBA and FRESCO calculations, U(p, F) fission secondary beams.

doi: 10.1038/nature09048
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2010SH06      Phys.Rev. C 81, 039801 (2010)

J.F.Shriner, Jr., D.W.Bardayan, J.C.Blackmon, K.Y.Chae, R.L.Kozub, M.S.Smith

Comment on "Low-energy 18F(p, α)15O cross section measurements relevant to nova γ-ray emission"

NUCLEAR REACTIONS 18F(p, α)15O, E(cm)=0-1 MeV; analyzed and discussed interference effects in resonance reactions.

doi: 10.1103/PhysRevC.81.039801
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2009BA59      Eur.Phys.J. A 42, 457 (2009)

D.W.Bardayan, K.A.Chipps, R.P.Fitzgerald, J.C.Blackmon, K.Y.Chae, A.E.Champagne, U.Greife, R.Hatarik, R.L.Kozub, C.Matei, B.H.Moazen, C.D.Nesaraja, S.D.Pain, W.A.Peters, S.T.Pittman, J.F.Shriner, M.S.Smith

Direct measurements of (p, γ) cross-sections at astrophysical energies using radioactive beams and the Daresbury Recoil Separator

NUCLEAR REACTIONS 1H(7Be, γ), (17F, γ), (24Mg, γ), E=12 MeV;7Be, 17F, 24Mg; measured reaction products; deduced yields, σ for (p, γ) reactions.

doi: 10.1140/epja/i2008-10737-8
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2009BE01      J.Phys.(London) G36, 025201 (2009)

J.Beun, J.C.Blackmon, W.R.Hix, G.C.McLaughlin, M.S.Smith, R.Surman

Neutron capture on 130Sn during r-process freeze-out

doi: 10.1088/0954-3899/36/2/025201
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2009CH17      Phys.Rev.Lett. 102, 152502 (2009)

K.A.Chipps, D.W.Bardayan, J.C.Blackmon, K.Y.Chae, U.Greife, R.Hatarik, R.L.Kozub, C.Matei, B.H.Moazen, C.D.Nesaraja, S.D.Pain, W.A.Peters, S.T.Pittman, J.F.Shriner, Jr., M.S.Smith

First Direct Measurement of the 17F(p, γ)18Ne Cross Section

NUCLEAR REACTIONS 1H(17F, γ), E < 14.3 MeV; measured recoil spectra, cross sections. 17F(p, γ); deduced resonance strengths and reaction rates.

doi: 10.1103/PhysRevLett.102.152502
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2009CH28      Phys.Rev. C 79, 055804 (2009)

K.Y.Chae, D.W.Bardayan, J.C.Blackmon, K.A.Chipps, R.Hatarik, K.L.Jones, R.L.Kozub, J.F.Liang, C.Matei, B.H.Moazen, C.D.Nesaraja, P.D.O'Malley, S.D.Pain, S.T.Pittman, M.S.Smith

Constraint on the astrophysical 18Ne(α, p)21Na reaction rate through a 24Mg(p, t)22Mg measurement

NUCLEAR REACTIONS 24Mg(p, t), E=41, 41.5 MeV; measured triton spectra, σ(θ). 22Mg; deduced levels, J, π. DWBA analysis of σ(θ) data. 18Ne(α, p)21Na; deduced reaction rates versus temperature.

doi: 10.1103/PhysRevC.79.055804
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2009CH64      Phys.Rev. C 80, 065810 (2009)

K.A.Chipps, D.W.Bardayan, C.D.Nesaraja, M.S.Smith, J.C.Blackmon, K.Y.Chae, B.H.Moazen, S.T.Pittman, U.Greife, R.Hatarik, W.A.Peters, R.L.Kozub, J.F.Shriner, Jr., C.Matei, S.D.Pain

The 17F(p, γ)18Ne resonant cross section

NUCLEAR REACTIONS 1H(17F, γ)18Ne, E=14.3 MeV; 1H(17O, γ)18F, E=18.65 MeV; 20Ne(17O, 20Ne), E=18.65 MeV; measured recoils, σ at HRIBF facility; deduced widths of resonances, abundances of 17,18F and 17O in novae and x-ray bursts, and reaction rates for 17F(π, γ)18Ne reaction; discussed astrophysical implications.

doi: 10.1103/PhysRevC.80.065810
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2009MO16      Acta Phys.Pol. B40, 699 (2009)

B.H.Moazen, J.C.Blackmon, D.W.Bardayan, K.Y.Chae, K.Chipps, K.L.Grzywacz, R.L.Kozub, C.Matei, C.D.Nesaraja, S.D.Pain, J.F.Shriner, Jr., M.S.Smith

Measurement of the 330 keV Resonance in 18F(p, α)15O

NUCLEAR REACTIONS 18F, 17O(p, α), E=3.27 MeV; measured Eα, Iα;deduced resonance energy and strength.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1567.


2009PI13      Phys.Rev. C 80, 038801 (2009)

S.T.Pittman, D.W.Bardayan, J.C.Blackmon, R.L.Kozub, M.S.Smith

Analysis of 25Al energy levels observed in the 28Si(p, α)25Al reaction

NUCLEAR REACTIONS 28Si(p, α), E=40, 42 MeV; measured Eα, Iα, σ(θ). 25Al; deduced levels, J, π. DWBA analysis of σ(θ).

doi: 10.1103/PhysRevC.80.038801
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2008BA45      Phys.Rev. C 78, 052801 (2008)

D.W.Bardayan, P.D.O'Malley, J.C.Blackmon, K.Y.Chae, K.A.Chipps, J.A.Cizewski, R.Hatarik, K.L.Jones, R.L.Kozub, C.Matei, B.H.Moazen, C.D.Nesaraja, S.D.Pain, S.Paulauskas, W.A.Peters, S.T.Pittman, K.T.Schmitt, J.F.Shriner, Jr., M.S.Smith

Spectroscopic study of low-lying 16N levels

NUCLEAR REACTIONS 2H(15N, p), E=100 MeV; measured particle spectra, σ(θ), spectroscopic factors. 16N; deduced levels, J, π. 15N(n, γ); deduced reaction rate. Comparison with Distorted-Wave Born approximation.

doi: 10.1103/PhysRevC.78.052801
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2007BA69      Phys.Rev. C 76, 045803 (2007)

D.W.Bardayan, J.C.Blackmon, R.P.Fitzgerald, W.R.Hix, K.L.Jones, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, L.F.Roberts, M.S.Smith, J.S.Thomas, D.W.Visser

30S studied with the 32S(p, t)30S reaction and the 29P(p, γ)30S reaction rate

NUCLEAR REACTIONS 32S(p, t), E=37 MeV; measured triton energies, angular distributions. 30S deduced levels, J, π. 29P(p, γ)30S; deduced reaction rates of astrophysical significance.

doi: 10.1103/PhysRevC.76.045803
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2007CI05      Nucl.Instrum.Methods Phys.Res. B261, 938 (2007)

J.A.Cizewski, R.Hatarik, K.L.Jones, S.D.Pain, J.S.Thomas, M.S.Johnson, D.W.Bardayan, J.C.Blackmon, M.S.Smith, R.L.Kozub

(d, pγ) Reactions and the surrogate reaction technique

NUCLEAR REACTIONS 2H(90Zr, pγ), (80Se, pγ), E=4 MeV/nucleon; measured Eγ, Ep, pγ-coinc.

doi: 10.1016/j.nimb.2007.03.028
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2007JO09      Acta Phys.Pol. B38, 1205 (2007)

K.L.Jones, A.S.Adekola, D.W.Bardayan, J.C.Blackmon, K.Y.Chae, K.Chipps, J.A.Cizewski, D.J.Dean, L.Erikson, R.P.Fitzgerald, A.L.Gaddis, U.Greife, C.Harlin, R.Hatarik, J.A.Howard, M.S.Johnson, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, B.H.Moazen, P.D.O'Malley, C.D.Nesaraja, S.D.Pain, N.P.Patterson, S.V.Paulauskas, D.Shapira, J.F.Shriner Jr, D.J.Sissom, M.S.Smith, T.P.Swan, J.S.Thomas

Single Neutron Transfer Experiments Close to the r-Process Path

NUCLEAR REACTIONS 2H(82Ge, p), E=4 MeV/nucleon; 2H(84Se, p), E=4.5 MeV/nucleon; 2H(132Sn, p), E=4.77 MeV/nucleon; measured Ep and angular distributions. 83Ge, 85Se, 133Sn deduced levels, J, π and spectroscopic factors. Compared results to model calculations.


2007MA48      Phys.Rev. C 76, 015803 (2007); Erratum Phys.Rev. C 76, 039901 (2007)

Z.Ma, D.W.Bardayan, J.C.Blackmon, R.P.Fitzgerald, M.W.Guidry, W.R.Hix, K.L.Jones, R.L.Kozub, R.J.Livesay, M.S.Smith, J.S.Thomas, D.W.Visser

Astrophysically important 31S states studied with the 32S(p, d)31S reaction

NUCLEAR REACTIONS 32S(p, d), E=32 MeV; measured Ed, σ and angular distributions. 31S deduced level energies and spectroscopic factors.

doi: 10.1103/PhysRevC.76.015803
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2007MO20      Phys.Rev. C 75, 065801 (2007)

B.H.Moazen, D.W.Bardayan, J.C.Blackmon, K.Y.Chae, K.Chipps, C.P.Domizioli, R.Fitzgerald, U.Greife, W.R.Hix, K.L.Jones, R.L.Kozub, E.J.Lingerfelt, R.J.Livesay, C.D.Nesaraja, S.D.Pain, L.F.Roberts, J.F.Shriner, Jr., M.S.Smith, J.S.Thomas

Measurement of the 183 keV resonance in 17O(p, α)14N using a novel technique

NUCLEAR REACTIONS 1H(17O, α)14N, E=3.3 MeV; measured resonance energy and strength. Discussed astrophysical implications.

doi: 10.1103/PhysRevC.75.065801
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2007NE09      Phys.Rev. C 75, 055809 (2007)

C.D.Nesaraja, N.Shu, D.W.Bardayan, J.C.Blackmon, Y.S.Chen, R.L.Kozub, M.S.Smith

Nuclear structure properties of astrophysical importance for 19Ne above the proton threshold energy

NUCLEAR STRUCTURE 19Ne, 19F; analyzed available structure data; deduced level energies, J, π. Discussed astrophysical implications.

doi: 10.1103/PhysRevC.75.055809
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2007TH15      Phys.Rev. C 76, 044302 (2007)

J.S.Thomas, G.Arbanas, D.W.Bardayan, J.C.Blackmon, J.A.Cizewski, D.J.Dean, R.P.Fitzgerald, U.Greife, C.J.Gross, M.S.Johnson, K.L.Jones, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, D.Shapira, M.S.Smith, D.W.Visser

Single-neutron excitations in neutron-rich 83Ge and 85Se

NUCLEAR REACTIONS 2H(82Ge, p), (84Se, p), E=330, 380 MeV; measured Ep, Ip, recoil-proton-coin, angular distributions; deduced asymptotic normalization coefficients, spectroscopic factors. 83Ge, 85Se; deduced levels, J, π, angular momentum using DWBA analysis. 82Ge, 84Se(n, γ), E=0-1 MeV; calculated cross sections.

doi: 10.1103/PhysRevC.76.044302
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2006BA65      Phys.Rev. C 74, 045804 (2006)

D.W.Bardayan, J.A.Howard, J.C.Blackmon, C.R.Brune, K.Y.Chae, W.R.Hix, M.S.Johnson, K.L.Jones, R.L.Kozub, J.F.Liang, E.J.Lingerfelt, R.J.Livesay, S.D.Pain, J.P.Scott, M.S.Smith, J.S.Thomas, D.W.Visser

Astrophysically important 26Si states studied with the 28Si(p, t)26Si reaction. II. Spin of the 5.914-MeV 26Si level and galactic 26Al production

NUCLEAR REACTIONS 28Si(p, t), (p, d), E=40 MeV; measured particle spectra, angular distributions. 26Si level deduced J, π. 25Al(p, γ), E=low; deduced astrophysical reaction rate.

doi: 10.1103/PhysRevC.74.045804
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2006BL20      Nucl.Phys. A777, 531 (2006)

J.C.Blackmon, C.Angulo, A.C.Shotter

Experimental approaches to nuclear reactions involved in explosive stellar binaries

doi: 10.1016/j.nuclphysa.2005.03.011
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2006CH30      Phys.Rev. C 74, 012801 (2006)

K.Y.Chae, D.W.Bardayan, J.C.Blackmon, D.Gregory, M.W.Guidry, M.S.Johnson, R.L.Kozub, R.J.Livesay, Z.Ma, C.D.Nesaraja, S.D.Pain, S.Paulauskas, M.Porter-Peden, J.F.Shriner, Jr., N.Smith, M.S.Smith, J.S.Thomas

First experimental constraints on the interference of (3/2)+ resonances in the 18F(p, α)15O reaction

NUCLEAR REACTIONS 1H(18F, α), E(cm) ≈ 663-877 keV; measured particle spectra, excitation functions; deduced resonance interference effects. 19Ne deduced upper limits on resonance widths. R-matrix calculations.

doi: 10.1103/PhysRevC.74.012801
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2006KO13      Phys.Rev. C 73, 044307 (2006)

R.L.Kozub, D.W.Bardayan, J.C.Batchelder, J.C.Blackmon, C.R.Brune, A.E.Champagne, J.A.Cizewski, U.Greife, C.J.Gross, C.C.Jewett, R.J.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, L.Sahin, J.P.Scott, D.Shapira, M.S.Smith, J.S.Thomas

Neutron single particle strengths from the (d, p) reaction on 18F

NUCLEAR REACTIONS 2H(18F, p), E=108.5 MeV; measured Ep, σ(E, θ). 19F deduced levels, J, π, neutron spectroscopic factors. Finite-range DWBA analysis. Comparison with shell model predictions. Daresbury recoil separator.

doi: 10.1103/PhysRevC.73.044307
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2005BA82      Nucl.Phys. A758, 737c (2005)

D.W.Bardayan, J.C.Blackmon, J.Gomez del Campo, R.L.Kozub, J.F.Liang, Z.Ma, L.Sahin, D.Shapira, M.S.Smith

New 19Ne Level Observed with a Thick Target 18F(p, p)18F Measurement

NUCLEAR REACTIONS 1H(18F, p), E(cm) ≈ 0.3-1.3 MeV; measured proton spectra, σ(θ), excitation functions. 19Ne deduced resonance parameters, excited state energy, J, π. 18F(p, α), (p, γ), E=low; calculated astrophysical reaction rates.

doi: 10.1016/j.nuclphysa.2005.05.133
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2005BB05      Eur.Phys.J. A 25, Supplement 1, 643 (2005)

D.W.Bardayan, J.C.Blackmon, J.Gomez del Campo, R.L.Kozub, J.F.Liang, Z.Ma, D.Shapira, L.Sahin, M.S.Smith

New 19Ne resonance observed using an exotic 18F beam

NUCLEAR REACTIONS 1H(18F, p), E(cm) ≈ 0.3-1.3 MeV; measured Ep, σ(θ); deduced excitation functions. 19Ne deduced resonance energies, J, π, analog states. 18F(p, α), (p, γ), E=low; calculated astrophysical reaction rates.

doi: 10.1140/epjad/i2005-06-007-3
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2005BL22      Nucl.Phys. A758, 102c (2005)

J.C.Blackmon

Measurements with radioactive ion beams: progress and prospects

doi: 10.1016/j.nuclphysa.2005.05.022
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2005BL23      Phys.Rev. C 72, 034606 (2005)

J.C.Blackmon, F.Carstoiu, L.Trache, D.W.Bardayan, C.R.Brune, C.A.Gagliardi, U.Greife, C.J.Gross, C.C.Jewett, R.L.Kozub, T.A.Lewis, J.F.Liang, B.H.Moazen, A.M.Mukhamedzhanov, C.D.Nesaraja, F.M.Nunes, P.D.Parker, L.Sahin, J.P.Scott, D.Shapira, M.S.Smith, J.S.Thomas, R.E.Tribble

Elastic scattering of the proton drip-line nucleus 17F

NUCLEAR REACTIONS 12C, 14N(17F, 17F), E=10 MeV/nucleon; measured σ(θ); deduced parameters, reaction mechanism features. Double-folding procedure.

doi: 10.1103/PhysRevC.72.034606
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2005BL26      J.Phys.(London) G31, S1405 (2005)

J.C.Blackmon, for the RIBENS Collaboration

Spectroscopy with radioactive ion beams at the HRIBF for nuclear astrophysics

doi: 10.1088/0954-3899/31/10/004
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2005CI07      Nucl.Instrum.Methods Phys.Res. B241, 200 (2005)

J.A.Cizewski, K.L.Jones, S.D.Pain, J.S.Thomas, C.Baktash, D.W.Bardayan, J.C.Blackmon, C.Gross, J.F.Liang, D.Shapira, M.S.Smith, R.L.Kozub, B.H.Moazen, C.D.Nesaraja, H.K.Carter, M.S.Johnson, R.P.Fitzgerald, D.W.Visser, U.Greife, R.J.Livesay, W.Catford, Z.Ma

Neutron transfer reactions with neutron-rich radioactive ion beams

NUCLEAR REACTIONS 2H(82Ge, p), (84Se, p), E=4 MeV/nucleon; measured Ep, σ(θ). 83Ge, 85Se deduced ground and excited states energies, J, π.

doi: 10.1016/j.nimb.2005.07.025
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2005FI01      Nucl.Phys. A748, 351 (2005)

R.Fitzgerald, E.Abbotoy, D.W.Bardayan, J.C.Blackmon, A.E.Champagne, A.A.Chen, U.Greife, D.W.Hill, A.N.James, R.L.Kozub, T.A.Lewis, R.Livesay, Z.Ma, S.L.Mahan, J.W.McConnell, W.T.Milner, B.H.Moazen, P.D.Parker, D.E.Pierce, M.E.Roettger, L.Sahin, D.Shapira, M.S.Smith, F.Strieder, K.B.Swartz, J.S.Thomas, D.W.Visser

Studies of (p, γ) reactions with the Daresbury Recoil Separator at ORNL'S HRIBF

NUCLEAR REACTIONS 1H(17O, γ), E=12.5 MeV; measured particle spectra; deduced resonance strength. Recoil separator, other reactions discussed.

doi: 10.1016/j.nuclphysa.2004.09.155
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2005JO23      Eur.Phys.J. A 25, Supplement 1, 283 (2005)

K.L.Jones, C.Baktash, D.W.Bardayan, J.C.Blackmon, W.N.Catford, J.A.Cizewski, R.P.Fitzgerald, U.Greife, M.S.Johnson, R.L.Kozub, R.J.Livesay, Z.Ma, C.D.Nesaraja, D.Shapira, M.S.Smith, J.S.Thomas, D.Visser

Developing techniques to study A ∼ 132 nuclei with (d, p) reactions in inverse kinematics

NUCLEAR REACTIONS 2H(124Sn, p), E=4.5 MeV/nucleon; measured σ(θ). 125Sn levels deduced spectroscopic factors. DWBA analysis.

doi: 10.1140/epjad/i2005-06-112-3
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2005KO09      Phys.Rev. C 71, 032801 (2005)

R.L.Kozub, D.W.Bardayan, J.C.Batchelder, J.C.Blackmon, C.R.Brune, A.E.Champagne, J.A.Cizewski, T.Davinson, U.Greife, C.J.Gross, C.C.Jewett, R.J.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, L.Sahin, J.P.Scott, D.Shapira, M.S.Smith, J.S.Thomas, P.J.Woods

New constraints on the 18F(p, α)15O rate in novae from the (d, p) reaction

NUCLEAR REACTIONS 2H(18F, p), E=108.5 MeV; measured Ep, σ(θ). 19F levels deduced spectroscopic factors. 19Ne calculated proton resonance widths. 18F(p, γ), (p, α), E=low; deduced astrophysical reaction rates.

doi: 10.1103/PhysRevC.71.032801
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2005KO31      Nucl.Phys. A758, 753c (2005)

R.L.Kozub, D.W.Bardayan, J.C.Batchelder, J.C.Blackmon, C.R.Brune, A.E.Champagne, J.A.Cizewski, T.Davinson, U.Greife, C.J.Gross, C.C.Jewet, R.J.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, J.P.Scott, L.Sahin, D.Shapira, M.S.Smith, J.S.Thomas, P.J.Woods

New Limits for the 18F(p, α)15O Rate in Novae

NUCLEAR REACTIONS 2H(18F, p), E=108.49 MeV; measured particle spectra, σ(θ). 19F levels deduced spectroscopic factors. 18F(p, α), E=low; calculated astrophysical reaction rates.

doi: 10.1016/j.nuclphysa.2005.05.135
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2005NE12      Nucl.Phys. A758, 174c (2005)

C.D.Nesaraja, E.L.Lingerfelt, J.P.Scott, M.S.Smith, W.R.Hix, D.W.Bardayan, J.C.Blackmon, K.Chae, M.W.Guidry, R.A.Meyer

A New Computational Infrastructure For Nuclear Astrophysics

doi: 10.1016/j.nuclphysa.2005.05.173
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2005TH03      Phys.Rev. C 71, 021302 (2005)

J.S.Thomas, D.W.Bardayan, J.C.Blackmon, J.A.Cizewski, U.Greife, C.J.Gross, M.S.Johnson, K.L.Jones, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, D.Shapira, M.S.Smith

First study of the level structure of the r-process nucleus 83Ge

NUCLEAR REACTIONS 2H(82Ge, p), E=330 MeV; measured proton spectra, σ(θ), Q value. 83Ge deduced levels, J, π, spectroscopic factors, mass excess.

doi: 10.1103/PhysRevC.71.021302
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2005TH09      Nucl.Phys. A758, 663c (2005)

J.S.Thomas, D.W.Bardayan, J.C.Blackmon, J.A.Cizewski, R.P.Fitzgerald, U.Greife, C.J.Gross, M.S.Johnson, K.L.Jones, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, D.Shapira, M.S.Smith, D.W.Visser

Neutron Single-Particle States in r-Process Nuclei Near Closed Shells

NUCLEAR REACTIONS 2H(84Se, p), (124Sn, p), E=4.5 MeV/nucleon; measured recoil proton spectra, σ(E, θ). 85Se, 125Sn deduced levels, J, π.

doi: 10.1016/j.nuclphysa.2005.05.119
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2005TH12      Eur.Phys.J. A 25, Supplement 1, 371 (2005)

J.S.Thomas, D.W.Bardayan, J.C.Blackmon, J.A.Cizewski, R.P.Fitzgerald, U.Greife, C.J.Gross, M.S.Johnson, K.L.Jones, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, D.Shapira, M.S.Smith, D.W.Visser

Single-neutron excitations in neutron-rich N = 51 nuclei

NUCLEAR REACTIONS 2H(82Ge, p), E=4 MeV/nucleon; 2H(84Se, p), E=4.5 MeV/nucleon; measured Ep, recoil particle spectrum, proton angular distribution. 83Ge, 85Se deduced levels J, π, spectroscopic factors. DWBA analysis.

doi: 10.1140/epjad/i2005-06-127-8
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2004BA63      Phys.Rev. C 70, 015804 (2004)

D.W.Bardayan, J.C.Blackmon, J.Gomez del Campo, R.L.Kozub, J.F.Liang, Z.Ma, L.Sahin, D.Shapira, M.S.Smith

Search for astrophysically important 19Ne levels with a thick-target 18F(p, p)18F measurement

NUCLEAR REACTIONS 1H(18F, p), E(cm) ≈ 0.3-1.3 MeV; measured Ep; deduced excitation function. 19Ne deduced levels, J, π, widths. Astrophysical implications discussed.

doi: 10.1103/PhysRevC.70.015804
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2004BB08      Nucl.Phys. A746, 557c (2004)

D.W.Bardayan, J.C.Blackmon, J.Gomez del Campo, R.L.Kozub, J.F.Liang, Z.Ma, D.Shapira, M.S.Smith

Studies of the 18F(p, α)15O reaction rate with a 18F beam at the HRIBF

NUCLEAR REACTIONS 1H(18F, p), E=0-24 MeV; measured Ep, σ(θ), excitation function. 19Ne deduced resonance width upper limit.

doi: 10.1016/j.nuclphysa.2004.09.089
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2004BB10      Nucl.Phys. A746, 593c (2004)

D.W.Bardayan, J.C.Blackmon, J.Gomez del Campo, R.L.Kozub, J.F.Liang, Z.Ma, D.Shapira, M.S.Smith

Studies of the 18F(p, α) 15O reaction rate with a 18F beam at the HRIBF

NUCLEAR REACTIONS 1H(18F, p), E=0-24 MeV; measured Ep, σ(θ), excitation function. 19Ne deduced resonance width upper limit.

doi: 10.1016/j.nuclphysa.2004.09.095
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2004BL21      Nucl.Phys. A746, 365c (2004)

J.C.Blackmon, D.W.Bardayan, C.R.Brune, F.Carstoiu, A.E.Champagne, R.Crespo, T.Davinson, J.C.Fernandes, C.A.Gagliardi, U.Greife, C.J.Gross, P.A.Hausladen, C.Iliadis, C.C.Jewett, R.L.Kozub, T.A.Lewis, F.Liang, B.H.Moazen, A.M.Mukhamedzhanov, C.D.Nesaraja, F.M.Nunes, P.D.Parker, D.C.Radford, L.Sahin, J.P.Scott, D.Shapira, M.S.Smith, J.S.Thomas, L.Trache, R.E.Tribble, P.J.Woods, C.-H.Yu

The 17F(p, γ)18Ne direct capture cross section

NUCLEAR REACTIONS 12C, 14N(17F, 17F), E=170 MeV; 14N(17F, 18Ne), E=170 MeV; measured σ(θ).

doi: 10.1016/j.nuclphysa.2004.09.054
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2004HA50      Phys.Rev. C 70, 045802 (2004)

S.E.Hale, A.E.Champagne, C.Iliadis, V.Y.Hansper, D.C.Powell, J.C.Blackmon

Investigation of the 23Na(p, γ)24Mg and 23Na(p, α)20Ne reactions via (3He, d) spectroscopy

NUCLEAR REACTIONS 23Na(3He, d), E=20 MeV; measured deuteron spectra, σ(E, θ). 24Mg deduced levels, J, π, spectroscopic factors. 23Na(p, γ), (p, α), E=low; deduced resonance features, reaction rates. Astrophysical implications discussed.

doi: 10.1103/PhysRevC.70.045802
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2004JO19      Phys.Rev. C 70, 067602 (2004)

K.L.Jones, R.L.Kozub, C.Baktash, D.W.Bardayan, J.C.Blackmon, W.N.Catford, J.A.Cizewski, R.P.Fitzgerald, M.S.Johnson, R.J.Livesay, Z.Ma, C.D.Nesaraja, D.Shapira, M.S.Smith, J.S.Thomas, D.W.Visser

Study of the 124Sn(d, p) reaction in inverse kinematics close to the Coulomb barrier

NUCLEAR REACTIONS 2H(124Sn, p), E=562 MeV; measured Ep, σ(θ). 125Sn deduced levels, spectroscopic factors. DWBA analysis. Comparison with previous results.

doi: 10.1103/PhysRevC.70.067602
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2004SM08      Nucl.Phys. A746, 565c (2004)

M.S.Smith, W.R.Hix, S.Parete-Koon, L.Dessieux, Z.Ma, S.Starrfield, D.W.Bardayan, M.W.Guidry, D.L.Smith, J.C.Blackmon, A.Mezzacappa

Element synthesis calculations for stellar explosions: robust uncertainties, sensitivities, and radioactive ion beam measurements

doi: 10.1016/j.nuclphysa.2004.09.091
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2004SM09      Nucl.Phys. A746, 569c (2004)

M.S.Smith, R.A.Meyer, D.W.Bardayan, J.C.Blackmon, K.Chae, M.W.Guidry, W.R.Hix, R.L.Kozub, E.J.Lingerfelt, Z.Ma, J.P.Scott

Nuclear data on unstable nuclei for astrophysics

doi: 10.1016/j.nuclphysa.2004.09.092
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2004TH12      Nucl.Phys. A746, 178c (2004)

J.S.Thomas, D.W.Bardayan, J.C.Blackmon, J.A.Cizewski, U.Greife, C.J.Gross, M.S.Johnson, K.L.Jones, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, D.Shapira, M.S.Smith

Studies of the neutron single-particle structure of exotic nuclei at the HRIBF

NUCLEAR REACTIONS 2H(82Ge, p), E=4 MeV/nucleon; measured Ep, σ(θ). 83Ge deduced levels.

doi: 10.1016/j.nuclphysa.2004.09.032
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2003BA85      Nucl.Phys. A718, 505c (2003)

D.W.Bardayan, J.C.Blackmon, A.E.Champagne, A.K.Dummer, T.Davinson, U.Greife, D.Hill, C.Iliadis, B.A.Johnson, R.L.Kozub, C.S.Lee, M.S.Smith, P.J.Woods

Study of 26Si States Important for 26Al Nucleosynthesis in Novae

NUCLEAR REACTIONS 28Si(p, t), E=40, 42 MeV; measured σ(E, θ). 26Si deduced levels, J, π. Astrophysical implications discussed.

doi: 10.1016/S0375-9474(03)00825-X
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2003BA86      Nucl.Phys. A718, 590c (2003)

D.W.Bardayan, J.C.Batchelder, J.C.Blackmon, A.E.Champagne, T.Davinson, R.Fitzgerald, W.R.Hix, C.Iliadis, R.L.Kozub, Z.Ma, S.Parete-Koon, P.D.Parker, N.Shu, M.S.Smith, P.J.Woods

Measurement of the 18F(p, α)15O Cross Section at Nova Energies

NUCLEAR REACTIONS 1H(18F, α), E(cm) ≈ 0.3-0.8 MeV; measured σ; deduced resonance parameters. 18F(p, α), E(cm) ≈ 0.2-1.0 MeV; deduced σ.

doi: 10.1016/S0375-9474(03)00873-X
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2003BL11      Nucl.Phys. A718, 127c (2003)

J.C.Blackmon, D.W.Bardayan, W.Bradfield-Smith, R.Brummitt, A.E.Champagne, A.A.Chen, T.Davinson, L.Dessieux, M.W.Guidry, K.I.Hahn, G.M.Hale, W.R.Hix, R.L.Kozub, Z.Ma, P.D.Parker, G.Rajbaidya, R.C.Runkle, C.M.Rowland, A.C.Shotter, M.S.Smith, L.A.Van Wormer, D.W.Visser, P.J.Woods

The 14O(α, p)17F Reaction Rate

NUCLEAR REACTIONS 1H(17F, 17F), (17F, 17F'), (17F, 14O), E(cm) ≈ 1-4 MeV; measured particle spectra. 17F(p, p'), E(cm)=2-2.5 MeV; deduced σ. 14O(α, p), E=low; deduced astrophysical reaction rate. R-matrix analysis.

doi: 10.1016/S0375-9474(03)00689-4
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2003BL12      Nucl.Phys. A718, 587c (2003)

J.C.Blackmon, D.W.Bardayan, C.R.Brune, A.E.Champagne, R.Crespo, T.Davinson, J.C.Fernandes, C.A.Gagliardi, U.Greife, C.J.Gross, P.A.Hausladen, C.Iliadis, C.C.Jewett, R.L.Kozub, T.A.Lewis, F.Liang, B.H.Moazen, A.M.Mukhamedzhanov, C.D.Nesaraja, F.M.Nunes, P.D.Parker, D.C.Radford, L.Sahin, J.P.Scott, D.Shapira, M.S.Smith, J.S.Thomas, L.Trache, R.E.Tribble, P.J.Woods, C.-H.Yu

The 17F(p, γ)18Ne Direct Capture Cross Section

NUCLEAR REACTIONS 14N(17F, 18Ne), E=170 MeV; measured Eγ, Iγ, particle spectra, (particle)γ-coin, σ(θ).

doi: 10.1016/S0375-9474(03)00872-8
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2003SH25      Chin.Phys.Lett. 20, 1470 (2003)

N.-C.Shu, D.W.Bardayan, J.C.Blackmon, Y.-S.Chen, R.L.Kozub, P.D.Parker, M.S.Smith

New Astrophysical Reaction Rates for 18F(p, α)15O and 18F(p, γ)19Ne

NUCLEAR REACTIONS 18F(p, α), (p, γ), E=low; analyzed data; calculated astrophysical reaction rates.

doi: 10.1088/0256-307X/20/9/317
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2002BA25      Phys.Rev. C65, 032801 (2002)

D.W.Bardayan, J.C.Blackmon, A.E.Champagne, A.K.Dummer, T.Davinson, U.Greife, D.Hill, C.Iliadis, B.A.Johnson, R.L.Kozub, C.S.Lee, M.S.Smith, P.J.Woods

Astrophysically Important 26Si States Studied with the 28Si(p, t)26Si Reaction

NUCLEAR REACTIONS 28Si(p, t), E=40, 42 MeV; measured triton spectra, σ(θ). 26Si deduced levels, J, π. Astrophysical implications discussed.

doi: 10.1103/PhysRevC.65.032801
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2002BB02      Phys.Rev.Lett. 89, 262501 (2002)

D.W.Bardayan, J.C.Batchelder, J.C.Blackmon, A.E.Champagne, T.Davinson, R.Fitzgerald, W.R.Hix, C.Iliadis, R.L.Kozub, Z.Ma, S.Parete-Koon, P.D.Parker, N.Shu, M.S.Smith, P.J.Woods

Strength of the 18F(p, α)15O Resonance at Ec.m.=330 keV

NUCLEAR REACTIONS 1H(18F, α), E(cm)=330 keV; measured Eα, Iα(θ), σ; deduced resonance parameters. 18F(p, α), E=astrophysical; calculated reaction rates.

doi: 10.1103/PhysRevLett.89.262501
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2002BL08      Phys.Rev. C65, 045801 (2002)

J.C.Blackmon, S.Raman, J.K.Dickens, R.M.Lindstrom, R.L.Paul, J.E.Lynn

Thermal-Neutron Capture by 208Pb

NUCLEAR REACTIONS 206,207,208Pb(n, γ), E=subthermal; measured Eγ, Iγ, σ. 209Pb deduced levels, J, π, neutron separation energy. Direct capture model, astrophysical s process.

doi: 10.1103/PhysRevC.65.045801
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2002HA03      Phys.Rev. C65, 015801 (2002)

S.E.Hale, A.E.Champagne, C.Iliadis, V.Y.Hansper, D.C.Powell, J.C.Blackmon

Investigation of the 22Ne(p, γ)23Na Reaction via (3He, d) Spectroscopy

NUCLEAR REACTIONS 22Ne(3He, d), E=20 MeV; measured deuteron spectra, σ(θ). 23Na levels deduced spectroscopic factors. 22Ne(p, γ), E=spectrum; deduced astrophysical reaction rates. 22Ne(3He, 3He), E=20 MeV; measured σ(θ).

doi: 10.1103/PhysRevC.65.015801
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2002HA15      Phys.Rev. C65, 035803 (2002)

B.Harss, C.L.Jiang, K.E.Rehm, J.P.Schiffer, J.Caggiano, P.Collon, J.P.Greene, D.Henderson, A.Heinz, R.V.F.Janssens, J.Nolen, R.C.Pardo, T.Pennington, R.H.Siemssen, A.A.Sonzogni, J.Uusitalo, I.Wiedenhover, M.Paul, T.F.Wang, F.Borasi, R.E.Segel, J.C.Blackmon, M.Smith, A.Chen, P.Parker

Widths of Astrophysically Important Resonances in 18Ne

NUCLEAR REACTIONS 1H(17F, p), (17F, α), E(cm)=3.07-3.94 MeV; measured σ, σ(E, θ). 17F(p, p'), E(cm) ≈ 3.5 MeV; deduced σ(θ). 14O(α, p), E=low; deduced astrophysical reaction rates. 18Ne deduced resonance parameters.

doi: 10.1103/PhysRevC.65.035803
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2001BA49      Phys.Rev. C63, 065802 (2001)

D.W.Bardayan, J.C.Blackmon, W.Bradfield-Smith, C.R.Brune, A.E.Champagne, T.Davinson, B.A.Johnson, R.L.Kozub, C.S.Lee, R.Lewis, P.D.Parker, A.C.Shotter, M.S.Smith, D.W.Visser, P.J.Woods

Destruction of 18F via 18F(p, α)15O Burning Through the Ec.m. = 665 keV Resonance

NUCLEAR REACTIONS 1H(18F, p), (18F, α), E=10-14 MeV; measured particle spectra, σ(θ), σ. 18F(p, α), E(cm)=663 keV; deduced σ. 19Ne deduced resonance energy, width, proton branching ratio. Astrophysical implications discussed.

doi: 10.1103/PhysRevC.63.065802
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2001BA59      Nucl.Phys. A688, 475c (2001)

D.W.Bardayan, J.C.Blackmon, W.Bradfield-Smith, C.R.Brune, A.E.Champagne, T.Davinson, B.A.Johnson, R.L.Kozub, C.S.Lee, R.Lewis, P.D.Parker, A.C.Shotter, M.S.Smith, D.W.Visser, P.J.Woods

Determination of the Properties of the 7.08 MeV State in 19Ne by Measurement of the 1H(18F, p)18F and 1H(18F, α)15O Cross Sections with a Radioactive 18F Beam

NUCLEAR REACTIONS 1H(18F, p), (18F, α), E(cm)=500-800 keV; measured σ(θ). 19Ne deduced resonance parameters. Comparison with earlier data.

doi: 10.1016/S0375-9474(01)00760-6
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0868.


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