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2020JI12      Nature(London) 588, 57 (2020)

S.Jin, L.F.Roberts, S.M.Austin, H.Schatz

Enhanced triple-α reaction reduces proton-rich nucleosynthesis in supernovae

NUCLEAR REACTIONS 8Be(α, X)12C, 4He(α, X)8Be, E<0.5 MeV; analyzed available data; deduced rate of the triple-α reaction, impact on the synthesis of heavy elements in the Ga-Cd range in proton-rich neutrino-driven outflows of core-collapse supernovae.

doi: 10.1038/s41586-020-2948-7
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2019AU01      Phys.Rev. C 99, 024320 (2019)

S.M.Austin, P.Paul, B.A.Brown, V.Zelevinsky

Reactions leading to the first excited states of 7Li and 7Be and isospin-mixed states in 8Be

NUCLEAR REACTIONS 6Li(d, p), (d, n), E=0.15-7.2 MeV; 7Li(p, p'), (p, n), E=3.0-10.0 MeV; measured Eγ and Iγ from the decays of 7Li (478-keV γ) and 7Be (429-keV γ) at the Stanford 3-MeV Van de Graaff and FN Tandem accelerator; deduced ratios of σ(d, p')/σ(d, n') and σ(p, p')/σ(p, n') as function of incident deuteron and proton energies, effects of isospin mixed states in the compound nucleus. 8Be; calculated levels, J, π using shell model with PJT interaction, and compared with experimental data.

doi: 10.1103/PhysRevC.99.024320
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Data from this article have been entered in the XUNDL database. For more information, click here.


2019ZA07      Phys.Rev. C 100, 032801(R) (2019)

J.C.Zamora, R.G.T.Zegers, SamM.Austin, D.Bazin, B.A.Brown, P.C.Bender, H.L.Crawford, J.Engel, A.Falduto, A.Gade, P.Gastis, B.Gao, T.Ginter, C.J.Guess, S.Lipschutz, B.Longfellow, A.O.Macchiavelli, K.Miki, E.Ney, S.Noji, J.Pereira, J.Schmitt, C.Sullivan, R.Titus, D.Weisshaar

Experimental constraint on stellar electron-capture rates from the 88Sr(t, 3He + γ) 88Rb reaction at 115 MeV/u

NUCLEAR REACTIONS 88Sr(t, 3He)88Rb, E=115 MeV/nucleon, [secondary triton beam from 9Be(16O, X), E=150 MeV/nucleon using Coupled Cyclotron Facility and A1900 fragment separator at NSCL-MSU]; measured 3He ejectiles, angular distributions using S800 spectrograph, and Eγ, Iγ using GRETINA array; deduced double-differential cross sections, L-transfers from fitting of the σ(θ) distributions in the multipole decomposition analysis (MDA), two-dimensional histogram of γ-ray energy versus excitation energy of 88Rb. 88Sr; deduced B(GT) strength distributions, electron capture (EC) rates on 88Sr as a function of stellar density at a temperature of 10 GK. 86,87,88Rb; deduced transitions. 12C(t, 3He)12B, E=115 MeV/nucleon; measured 3He ejectiles, reaction used for calibration and for absolute measurement of the triton beam intensity. Comparison of experimental EC rates on 88Sr with shell model and QRPA calculations. Relevance to the late evolution of core-collapse supernovae.

doi: 10.1103/PhysRevC.100.032801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2412. Data from this article have been entered in the XUNDL database. For more information, click here.


2018SU14      Phys.Rev. C 98, 015804 (2018)

C.Sullivan, R.G.T.Zegers, S.Noji, SamM.Austin, J.Schmitt, N.Aoi, D.Bazin, M.Carpenter, J.J.Carroll, H.Fujita, U.Garg, G.Gey, C.J.Guess, T.H.Hoang, M.N.Harakeh, E.Hudson, N.Ichige, E.Ideguchi, A.Inoue, J.Isaak, C.Iwamoto, C.Kacir, T.Koike, N.Kobayashi, S.Lipschutz, M.Liu, P.von Neumann-Cosel, H.J.Ong, J.Pereira, M.Kumar Raju, A.Tamii, R.Titus, V.Werner, Y.Yamamoto, Y.D.Fang, J.C.Zamora, S.Zhu, X.Zhou

The (6Li, 6Li* [3.56 MeV]) reaction at 100 MeV/u as a probe of Gamow-Teller transition strengths in the inelastic scattering channel

NUCLEAR REACTIONS 12C(6Li, 6Li'), E=100 MeV/nucleon; measured Eγ, Iγ, 6Li scattered particles, (6Li)γ-coin, double differential σ(θ, Eex) using CAGRA detector array for γ detection, and Grand Raiden magnetic spectrometer for analysis of charged particles at RCNP-Osaka; deduced Doppler-corrected (6Li)γ-coin spectrum, Gamow-Teller strengths, and isovector spin-transfer response in inelastic reaction channel by tagging the reaction with the 3.56-MeV γ-ray from the excited state of 6Li. 24Mg, 93Nb(6Li, 6Li'), E=100 MeV/nucleon; reactions used for calibration, also it was not possible to isolate the isovector spin transfer excitations in the inelastic channel.

doi: 10.1103/PhysRevC.98.015804
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2637. Data from this article have been entered in the XUNDL database. For more information, click here.


2017AU04      Astrophys.J. 839, L9 (2017)

S.M.Austin, C.West, A.Heger

Reducing Uncertainties in the Production of the Gamma-emitting Nuclei 26Al, 44Ti, and 60Fe in Core-collapse Supernovae by Using Effective Helium Burning Rates

doi: 10.3847/2041-8213/aa68e7
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2017BE18      Phys.Rev.Lett. 119, 1127501 (2017)

M.Beard, S.M.Austin, R.Cyburt

Enhancement of the Triple Alpha Rate in a Hot Dense Medium

NUCLEAR REACTIONS 4He(α, X)8Be, 8Be(α, X)12C, E<30 MeV; calculated 3α σ, reaction rates; deduced that in hot and dense astrophysical environment the rate of the triple-alpha reaction can increase greatly over the value appropriate for helium burning stars owing to hadronically induced deexcitation of the Hoyle state.

doi: 10.1103/PhysRevLett.119.112701
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2017MI06      Phys.Lett. B 769, 339 (2017)

K.Miki, R.G.T.Zegers, Sam M.Austin, D.Bazin, B.A.Brown, A.C.Dombos, R.K.Grzywacz, M.N.Harakeh, E.Kwan, S.N.Liddick, S.Lipschutz, E.Litvinova, M.Madurga, M.T.Mustonen, W.J.Ong, S.V.Paulauskas, G.Perdikakis, J.Pereira, W.A.Peters, C.Robin, M.Scott, A.Spyrou, C.Sullivan, R.Titus

Isovector excitations in 100Nb and their decays by neutron emission studied via the 100Mo(t, 3He + n) reaction at 115 MeV/ u

NUCLEAR REACTIONS 100Mo(t, 3He), E=115 MeV/nucleon; measured reaction products; deduced σ(θ, E), Gamow-Teller transition strength. Comparison with the single-particle estimate and spherical pn-(R)QRPA and pn-RQTBA calculations.

doi: 10.1016/j.physletb.2017.04.004
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2266.


2017SC07      Phys.Rev.Lett. 118, 172501 (2017)

M.Scott, R.G.Zegers, R.Almus, S.M.Austin, D.Bazin, B.A.Brown, C.Campbell, A.Gade, M.Bowry, S.Galies, U.Garg, M.N.Harakeh, E.Kwan, C.Langer, C.Loelius, S.Lipschutz, E.Litvinova, E.Lunderberg, C.Morse, S.Noji, G.Perdikakis, T.Redpath, C.Robin, H.Sakai, Y.Sasamoto, M.Sasano, C.Sullivan, J.A.ostevin, T.Uesaka, D.Weisshaar

Observation of the Isovector Giant Monopole Resonance via the 28Si(10Be, 10B*[1.74 MeV]) Reaction at 100 A MeV

NUCLEAR REACTIONS 28Si(10Be, 10B'), E=100 MeV/nucleon; measured reaction products, Eγ, Iγ. 28Al, 10B; deduced σ(θ, E), σ(θ), isobaric analog state in 10B, excitation-energy spectrum in 28Al, monopole and dipole contributions and the isovector giant dipole resonance and isovector giant monopole resonance (IVGMR). Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.118.172501
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2016SU01      Astrophys.J. 816, 44 (2016)

C.Sullivan, E.O'Connor, R.G.T.Zegers, T.Grubb, S.M.Austin

The sensitivity of core-collapse supernovae to nuclear electron capture

COMPILATION A<65; compiled experimental and theoretical values of electron-capture rates in medium-heavy nuclei.

doi: 10.3847/0004-637X/816/1/44
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2015NO04      Phys.Rev. C 92, 024312 (2015)

S.Noji, R.G.T.Zegers, SamM.Austin, T.Baugher, D.Bazin, B.A.Brown, C.M.Campbell, A.L.Cole, H.J.Doster, A.Gade, C.J.Guess, S.Gupta, G.W.Hitt, C.Langer, S.Lipschutz, E.Lunderberg, R.Meharchand, Z.Meisel, G.Perdikakis, J.Pereira, F.Recchia, H.Schatz, M.Scott, S.R.Stroberg, C.Sullivan, L.Valdez, C.Walz, D.Weisshaar, S.J.Williams, K.Wimmer

Gamow-Teller transitions to 45Ca via the 45Sc (t, 3He+γ) reaction at 115 MeV/u and its application to stellar electron-capture rates

NUCLEAR REACTIONS 45Sc(t, 3He), E=115 MeV/nucleon, [triton beam from 9Be(16O, X), E=150 MeV/nucleon reaction]; measured 3He spectra, double-differential σ(θ), Eγ, Iγ, (particle)γ-coin using S800 spectrometer, cathode-readout drift chambers (CRDCs) and Gretina array at NSCL-MSU Coupled-Cyclotron facility. 45Ca; deduced levels, J, π, B(GT) strength functions, electron capture rates on 45Ca as function of stellar temperatures T9=8.5-10.5, poor agreement with shell-model calculations in the pf space and using GXPF1A, KB3G, and FPD6 interactions. Comparison of B(GT) with that from 45Ca g.s. to 45Sc g.s. β transition.

doi: 10.1103/PhysRevC.92.024312
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2179. Data from this article have been entered in the XUNDL database. For more information, click here.


2014NO05      Phys.Rev.Lett. 112, 252501 (2014)

S.Noji, R.G.T.Zegers, S.M.Austin, T.Baugher, D.Bazin, B.A.Brown, C.M.Campbell, A.L.Cole, H.J.Doster, A.Gade, C.J.Guess, S.Gupta, G.W.Hitt, C.Langer, S.Lipschutz, E.Lunderberg, R.Meharchand, Z.Meisel, G.Perdikakis, J.Pereira, F.Recchia, H.Schatz, M.Scott, S.R.Stroberg, C.Sullivan, L.Valdez, C.Walz, D.Weisshaar, S.Williams, K.Wimmer

β+ Gamow-Teller Transition Strengths from 46Ti and Stellar Electron-Capture Rates

RADIOACTIVITY 46Ti(β+), (EC) [from 46Ti(t, 3He), E=115 MeV/nucleon]; measured reaction and decay products, Eγ, Iγ; deduced σ(θ, E), Gamow-Teller transition strength, energy levels, J, π, electron capture decay rates. Comparison with shell model calculations using GXPF1A, KB3G, FPD6 interactions, QRPA calculations.

doi: 10.1103/PhysRevLett.112.252501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2120. Data from this article have been entered in the XUNDL database. For more information, click here.


2014SC17      Phys.Rev. C 90, 025801 (2014)

M.Scott, Y.Shimbara, SamM.Austin, D.Bazin, B.A.Brown, J.M.Deaven, Y.Fujita, C.J.Guess, S.Gupta, G.W.Hitt, D.Koeppe, R.Meharchand, M.Nagashima, G.Perdikakis, A.Prinke, M.Sasano, C.Sullivan, L.Valdez, R.G.T.Zegers

Gamow-Teller transition strengths from 56Fe extracted from the 56Fe (t, 3He) reaction

NUCLEAR REACTIONS 56Fe(t, 3He), E=115 MeV/nucleon, [secondary triton beam from 9Be(16O, X), E=150 MeV/nucleon primary reaction]; measured 3He spectra, differential σ(θ) as function of excitation energy using S800 magnetic spectrograph at NSCL-MSU facility; deduced L-transfer, Gamow-Teller (GT) strength distribution, electron capture rates in 56Fe at astrophysical temperatures T9=2-10. DWBA analysis. Comparison with data from 56Fe(p, n), and with shell-model calculations in the pf-shell model space using the KB3G and GXPF1a interactions, and with calculations in the quasi-particle random-phase approximation (QRPA).

doi: 10.1103/PhysRevC.90.025801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2130.


2012CO16      Phys.Rev. C 86, 015809 (2012)

A.L.Cole, T.S.Anderson, R.G.T.Zegers, S.M.Austin, B.A.Brown, L.Valdez, S.Gupta, G.W.Hitt, O.Fawwaz

Gamow-Teller strengths and electron-capture rates for pf-shell nuclei of relevance for late stellar evolution

NUCLEAR REACTIONS 45Sc, 48Ti, 51V, 54,56Fe, 55Mn, 59Co, 58,60,62,64Ni(n, p), E GE 100 MeV/nucleon; 48Ti, 50,51V, 58,64Ni, 64Zn(d, 2He), E GE 100 MeV/nucleon; 58Ni, 64Zn(t, 3He), E GE 100 MeV/nucleon; 60,62Ni(p, n), E GE 100 MeV/nucleon; calculated B(GT) distributions, and electron capture (EC) rates at relevant stellar temperatures and densities using shell-model with GXPF1a and KB3G effective interactions, and QRPA using ground-state deformation parameters and masses from the finite-range droplet model. Comparison with experimental data. Relevance to late stellar evolution.

RADIOACTIVITY 45Ca, 55Cr, 64Co, 64Cu(β-); calculated B(GT) strength distribution, EC rates using shell-model and QRPA. Comparison with experimental data.

doi: 10.1103/PhysRevC.86.015809
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2012DE03      Phys.Rev. C 85, 024619 (2012)

R.P.DeVito, D.T.Khoa, S.M.Austin, U.E.P.Berg, B.M.Loc

Neutron scattering from 208Pb at 30.4 and 40.0 MeV and isospin dependence of the nucleon optical potential

NUCLEAR REACTIONS 208Pb(n, n), E=30.4, 40.0 MeV; measured neutron spectra using time-of-flight system at NSCL, MSU, σ(E, θ); comparison with σ(E, θ) data for 208Pb(p, p), E=45.0, 47.3, 49.4, 54.2 MeV, and optical model calculations; deduced optical model parameters using the Woods-Saxon geometry given by the CH89 systematics. Diffractive structure in σ(θ) distributions. 208Pb(p, n), E=45 MeV; analyzed σ(θ); deduced isovector term (isospin impurity) of the optical potential. Relevance to data for IAS.

doi: 10.1103/PhysRevC.85.024619
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14317.


2012ME05      Phys.Rev.Lett. 108, 122501 (2012)

R.Meharchand, R.G.T.Zegers, B.A.Brown, Sam M.Austin, T.Baugher, D.Bazin, J.Deaven, A.Gade, G.F.Grinyer, C.J.Guess, M.E.Howard, H.Iwasaki, S.McDaniel, K.Meierbachtol, G.Perdikakis, J.Pereira, A.M.Prinke, A.Ratkiewicz, A.Signoracci, S.Stroberg, L.Valdez, P.Voss, K.A.Walsh, D.Weisshaar, and R.Winkler

Probing Configuration Mixing in 12Be with Gamow-Teller Transition Strengths

NUCLEAR REACTIONS Li(12B, 7Be)12Be, E=80 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ(θ), B(GT) transition strength, level energies, J, π. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.108.122501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1910. Data from this article have been entered in the XUNDL database. For more information, click here.


2012SA37      Phys.Rev. C 86, 034324 (2012)

M.Sasano, G.Perdikakis, R.G.T.Zegers, SamM.Austin, D.Bazin, B.A.Brown, C.Caesar, A.L.Cole, J.M.Deaven, N.Ferrante, C.J.Guess, G.W.Hitt, M.Honma, R.Meharchand, F.Montes, J.Palardy, A.Prinke, L.A.Riley, H.Sakai, M.Scott, A.Stolz, T.Suzuki, L.Valdez, K.Yako

Extraction of Gamow-Teller strength distributions from 56Ni and 55Co via the (p, n) reaction in inverse kinematics

NUCLEAR REACTIONS 1H(55Co, n), E=106 MeV/nucleon; 1H(56Ni, n), E=110 MeV/nucleon, [55Co and 56Ni secondary beams from Be(58Ni, X), E=160 MeV/nucleon primary reaction]; measured E(n), I(n), neutron time of flight, differential σ(θ), excitation spectra using LENDA neutron detector array at NSCL facility. 55Co, 56Ni; deduced Gamow-Teller strengths in (p, n) reactions. Comparison with shell-model calculations in pf shell with KB3G and GXPF1J interactions. Be(58Ni, X)52Fe/53Fe/53Co/54Co/55Ni/55Co/56Ni/56Cu, E=160 MeV/nucleon; measured particle spectra, yields.

doi: 10.1103/PhysRevC.86.034324
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2011AU01      Phys.Rev.Lett. 106, 152501 (2011)

S.M.Austin, A.Heger, C.Tur

11B and Constraints on Neutrino Oscillations and Spectra from Neutrino Nucleosynthesis

NUCLEAR REACTIONS 4He(α, X)8Be, 8Be(α, X)12C, 12C(α, γ)16O, E not given; analyzed σ, uncertainties, reaction rates, yields. 7Li, 11B, 19F, 138La, 180Ta; deduced constraints on supernova neutrino spectra.

doi: 10.1103/PhysRevLett.106.152501
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2011GU14      Phys.Rev. C 83, 064318 (2011)

C.J.Guess, T.Adachi, H.Akimune, A.Algora, S.M.Austin, D.Bazin, B.A.Brown, C.Caesar, J.M.Deaven, H.Ejiri, E.Estevez, D.Fang, A.Faessler, D.Frekers, H.Fujita, Y.Fujita, M.Fujiwara, G.F.Grinyer, M.N.Harakeh, K.Hatanaka, C.Herlitzius, K.Hirota, G.W.Hitt, D.Ishikawa, H.Matsubara, R.Meharchand, F.Molina, H.Okamura, H.J.Ong, G.Perdikakis, V.Rodin, B.Rubio, Y.Shimbara, G.Susoy, T.Suzuki, A.Tamii, J.H.Thies, C.Tur, N.Verhanovitz, M.Yosoi, J.Yurkon, R.G.T.Zegers, J.Zenihiro

The 150Nd(3He, t) and 150Sm(t, 3He) reactions with applications to ββ decay of 150Nd

NUCLEAR REACTIONS 150Nd(3He, t), E=140 MeV/nucleon; 150Sm(t, 3He), E=115 MeV/nucleon; measured triton and 3He spectra, excitation energy spectra, differential cross sections, σ(θ) 150Pm; deduced B(GT) strengths; isovector spin-flip giant monopole resonance (IVSGMR). Grand Raiden Spectrometer for (3He, t) and S-800 spectrometer for (t, 3He). Comparison with Quasi-Particle Random Phase Approximation (QRPA) calculations. Application to double β decay of 150Nd.

RADIOACTIVITY 150Nd(2β-); calculated matrix elements for 0νββ and 2νββ decay modes using QRPA calculations. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.064318
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2347. Data from this article have been entered in the XUNDL database. For more information, click here.


2011PE12      Phys.Rev. C 83, 054614 (2011)

G.Perdikakis, R.G.T.Zegers, S.M.Austin, D.Bazin, C.Caesar, J.M.Deaven, A.Gade, D.Galaviz, G.F.Grinyer, C.J.Guess, C.Herlitzius, G.W.Hitt, M.E.Howard, R.Meharchand, S.Noji, H.Sakai, Y.Shimbara, E.E.Smith, C.Tur

Gamow-Teller unit cross sections for (t, 3He) and (3He, t) reactions

NUCLEAR REACTIONS 1,2H, 12C(t, 3He), E=115 MeV/nucleon; measured σ(θ), B(GT), excitation-energy spectrum. 6Li, 13C, 26Mg(t, 3He), E=115 MeV/nucleon; 12,13C, 18O, 26Mg, 58,62,64Ni, 68Zn, 118,120Sn(3He, t), E=140 MeV/nucleon; A=1-120 targets; analyzed cross section, B(GT), unit cross sections, distortion factors, volume integrals, kinematic factors. Plane and distorted-wave Born calculations.

doi: 10.1103/PhysRevC.83.054614
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1842.


2011SA52      Phys.Rev.Lett. 107, 202501 (2011)

M.Sasano, G.Perdikakis, R.G.T.Zegers, Sam M.Austin, D.Bazin, B.A.Brown, C.Caesar, A.L.Cole, J.M.Deaven, N.Ferrante, C.J.Guess, G.W.Hitt, R.Meharchand, F.Montes, J.Palardy, A.Prinke, L.A.Riley, H.Sakai, M.Scott, A.Stolz, L.Valdez, K.Yako

Gamow-Teller Transition Strengths from 56Ni

NUCLEAR REACTIONS 1H(56Ni, n), E=110 MeV/nucleon; measured reaction products, En, In; deduced σ(θ, E), σ, Gamow-Teller strength distribution. Comparison with shell model calculations using KB3G and GXPF1A interactions.

RADIOACTIVITY 56Cu(p); measured decay products.

doi: 10.1103/PhysRevLett.107.202501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1878. Data from this article have been entered in the XUNDL database. For more information, click here.


2010TU03      Astrophys.J. 718, 357 (2010)

C.Tur, A.Heger, S.M.Austin

Production of 26Al, 44Ti, and 60Fe in Core-collapse Supernovae: Sensitivity to the Rates of the Triple Alpha and 12C(α, γ)16O Reactions

doi: 10.1088/0004-637X/718/1/357
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2010ZE03      Phys.Rev.Lett. 104, 212504 (2010)

R.G.T.Zegers, R.Meharchand, Y.Shimbara, S.M.Austin, D.Bazin, B.A.Brown, C.Aa.Diget, A.Gade, C.J.Guess, M.Hausmann, G.W.Hitt, M.E.Howard, M.King, D.Miller, S.Noji, A.Signoracci, K.Starosta, C.Tur, C.Vaman, P.Voss, D.Weisshaar, J.Yurkon

34P(7Li, 7Be+γ) Reaction at 100A MeV in Inverse Kinematics

NUCLEAR REACTIONS 34P(7Li, γ7Be)34Si, E=100 MeV/nucleon; measured Eγ, Iγ, γ-particle coin.; deduced σ(θ), β+ Gamow-Teller transition strength distribution. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.104.212504
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Data from this article have been entered in the XUNDL database. For more information, click here.


2009GU23      Phys.Rev. C 80, 024305 (2009)

C.J.Guess, R.G.T.Zegers, B.A.Brown, S.M.Austin, D.Bazin, C.Caesar, J.M.Deaven, G.F.Grinyer, C.Herlitzius, G.W.Hitt, S.Noji, R.Meharchand, G.Perdikakis, H.Sakai, Y.Shimbara, C.Tur

Spectroscopy of 13B via the 13C(t, 3He) reaction at 115A MeV

NUCLEAR REACTIONS 13C(t, 3He), E=115 MeV/nucleon; measured 3He spectra, σ(θ); deduced Gamow-Teller strengths for dipole transitions. 13B; deduced levels, J, π. Comparison with shell-model calculations using WBT and WBP interactions.

doi: 10.1103/PhysRevC.80.024305
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1731. Data from this article have been entered in the XUNDL database. For more information, click here.


2009HI08      Phys.Rev. C 80, 014313 (2009)

G.W.Hitt, R.G.T.Zegers, Sam M.Austin, D.Bazin, A.Gade, D.Galaviz, C.J.Guess, M.Horoi, M.E.Howard, W.D.M.Rae, Y.Shimbara, E.E.Smith, C.Tur

Gamow-Teller transitions to 64Cu measured with the 64Zn(t, 3He) reaction

NUCLEAR REACTIONS 64Zn(t, 3He), E=115 MeV/nucleon; measured particle spectra, σ(θ) and Gamow-Teller strength distributions; deduced electron capture rate on 64Zn as a function of stellar temperature. Comparison with shell model calculations and experimental data from 64Zn(d, 2He) reaction.

doi: 10.1103/PhysRevC.80.014313
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1721. Data from this article have been entered in the XUNDL database. For more information, click here.


2008AN15      Phys.Rev. C 78, 065803 (2008)

N.Anantaraman, S.M.Austin, B.A.Brown, G.M.Crawley, A.Galonsky, R.G.T.Zegers, B.D.Anderson, A.R.Baldwin, B.S.Flanders, R.Madey, J.W.Watson, C.C.Foster

Electron capture strength for 60, 62Ni and 58, 60, 62, 64Ni(p, n)58, 60, 62, 64Cu reactions at 134.3 MeV

NUCLEAR REACTIONS 58,60,62,64Ni(p, n), E=134.3 MeV; measured neutron spectra, angular distributions, σ; calculated B(GT), reaction rates. 58,60,62,64Cu; deduced levels. Comparison with (n, p) reactions, shell model calculations.

doi: 10.1103/PhysRevC.78.065803
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1743.


2008HO10      Phys.Rev. C 78, 047302 (2008)

M.E.Howard, R.G.T.Zegers, Sam M.Austin, D.Bazin, B.A.Brown, A.L.Cole, B.Davids, M.Famiano, Y.Fujita, A.Gade, D.Galaviz, G.W.Hitt, M.Matos, S.D.Reitzner, C.Samanta, L.J.Schradin, Y.Shimbara, E.E.Smith, C.Simenel

Gamow-Teller strengths in 24Na using the 24Mg(t, 3He) reaction at 115A MeV

NUCLEAR REACTIONS 24Mg(t, 3He), E=115 MeV/nucleon; measured particle spectra, σ(θ); deduced levels, B(GT). Comparisons of GT values with 24Mg(3He, t), (d, 2He) reactions and USDA, USDB calculations.

doi: 10.1103/PhysRevC.78.047302
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2008ZE01      Phys.Rev. C 77, 024307 (2008)

R.G.T.Zegers, E.F.Brown, H.Akimune, Sam M.Austin, A.M.van den Berg, B.A.Brown, D.A.Chamulak, Y.Fujita, M.Fujiwara, S.Gales, M.N.Harakeh, H.Hashimoto, R.Hayami, G.W.Hitt, M.Itoh, T.Kawabata, K.Kawase, M.Kinoshita, K.Nakanishi, S.Nakayama, S.Okumura, Y.Shimbara, M.Uchida, H.Ueno, T.Yamagata, M.Yosoi

Gamow-Teller strength for the analog transitions to the first T = 1/2, Jπ = 3/2- states in 13C and 13N and the implications for type Ia supernovae

NUCLEAR REACTIONS 13C(3He, t), E=420 MeV; measured charged particles, σ(θ); deduced B(GT), levels, J, π. 13C(p, n); deduced electron capture rates in stellar environments as a function of temperature.

doi: 10.1103/PhysRevC.77.024307
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2008ZE05      Phys.Rev. C 78, 014314 (2008)

R.G.T.Zegers, R.Meharchand, T.Adachi, Sam M.Austin, B.A.Brown, Y.Fujita, M.Fujiwara, C.J.Guess, H.Hashimoto, K.Hatanaka, M.E.Howard, H.Matsubara, K.Nakanishi, T.Ohta, H.Okamura, Y.Sakemi, Y.Shimbara, Y.Shimizu, C.Scholl, A.Signoracci, Y.Tameshige, A.Tamii, M.Yosoi

Spectroscopy of 24Al and extraction of Gamow-Teller strengths with the 24Mg(3He, t) reaction at 420 MeV

NUCLEAR REACTIONS 24Mg(3He, t), E=420 MeV; measured triton spectra, σ(θ). 24Al; deduced levels, J, π, angular momenta, GT strengths. Comparison with model calculations and 24Mg(p, n) data.

doi: 10.1103/PhysRevC.78.014314
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2007ZE06      Phys.Rev.Lett. 99, 202501 (2007)

R.G.Zegers, T.Adachi, H.Akimune, S.M.Austin, A.M.van den Berg, B.A.Brown, Y.Fujita, M.Fujiwara, S.Gales, C.J.Guess, M.N.Harakeh, H.Hashimoto, K.Hatanaka, R.Hayami, G.W.Hitt, M.E.Howard, M.Itoh, T.Kawabata, K.Kawase, M.Kinoshita, M.Matsubara, K.Nakanishi, S.Nakayama, S.Okumura, T.Ohta, Y.Sakemi, Y.Shimbara, Y.Shimizu, C.Scholl, C.Simenel, Y.Tameshige, A.Tamii, M.Uchida, T.Yamagata, M.Yosoi

Extraction of Weak Transition Strengths via the (3He, t) Reaction at 420 MeV

NUCLEAR REACTIONS 12,13C, 18O, 26Mg, 58Ni, 60Ni, 90Zr, 118Sn, 208Pb(3He, t), E=420 MeV; measured triton spectra and cross sections. Deduced B(GT).

doi: 10.1103/PhysRevLett.99.202501
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2006CO14      Phys.Rev. C 74, 034333 (2006)

A.L.Cole, H.Akimune, S.M.Austin, D.Bazin, A.M.van den Berg, G.P.A.Berg, J.Brown, I.Daito, Y.Fujita, M.Fujiwara, S.Gupta, K.Hara, M.N.Harakeh, J.Janecke, T.Kawabata, T.Nakamura, D.A.Roberts, B.M.Sherrill, M.Steiner, H.Ueno, R.G.T.Zegers

Measurement of the Gamow-Teller strength distribution in 58Co via the 58Ni(t, 3He) reaction at 115 MeV/nucleon

NUCLEAR REACTIONS 12C, 58Ni(t, 3He), E=115 MeV/nucleon; measured particle spectra, σ(θ). 58Co deduced Gamow-Teller strength distribution. Comparison with previous results, model predictions.

doi: 10.1103/PhysRevC.74.034333
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2006HE09      Phys.Rev. C 73, 025802 (2006)

F.Herwig, S.M.Austin, J.C.Lattanzio

Nuclear reaction rate uncertainties and astrophysical modeling: Carbon yields from low-mass giants

NUCLEAR REACTIONS 14N(p, γ), 12C(α, γ), E=low; analyzed astrophysical reaction rates, uncertainties.

doi: 10.1103/PhysRevC.73.025802
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2006HI08      Nucl.Instrum.Methods Phys.Res. A566, 264 (2006)

G.W.Hitt, S.M.Austin, D.Bazin, A.L.Cole, J.Dietrich, A.Gade, M.E.Howard, S.D.Reitzner, B.M.Sherrill, C.Simenel, E.E.Smith, J.Stetson, A.Stolz, R.G.T.Zegers

Development of a secondary triton beam from primary 16, 18O beams for (t, 3He) experiments at intermediate energies

NUCLEAR REACTIONS Be(18O, tX), E=120 MeV/nucleon; Be(16O, tX), E=150 MeV/nucleon; measured triton yields vs energy, target thickness. 24Mg(t, 3He), E=115 MeV/nucleon; measured excitation energy spectra.

doi: 10.1016/j.nima.2006.07.045
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2006ZE01      Phys.Rev. C 74, 024309 (2006)

R.G.T.Zegers, H.Akimune, S.M.Austin, D.Bazin, A.M.van den Berg, G.P.A.Berg, B.A.Brown, J.Brown, A.L.Cole, I.Daito, Y.Fujita, M.Fujiwara, S.Gales, M.N.Harakeh, H.Hashimoto, R.Hayami, G.W.Hitt, M.E.Howard, M.Itoh, J.Janecke, T.Kawabata, K.Kawase, M.Kinoshita, T.Nakamura, K.Nakanishi, S.Nakayama, S.Okumura, W.A.Richter, D.A.Roberts, B.M.Sherrill, Y.Shimbara, M.Steiner, M.Uchida, H.Ueno, T.Yamagata, M.Yosoi

The (t, 3He) and (3He, t) reactions as probes of Gamow-Teller strength

NUCLEAR REACTIONS 26Mg(t, 3He), E=115 MeV/nucleon; 26Mg(3He, t), E=140 MeV/nucleon; measured σ(E, θ); deduced Gamow-Teller transition strengths. Comparison with model predictions.

doi: 10.1103/PhysRevC.74.024309
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2005AU08      Nucl.Phys. A758, 375c (2005)

S.M.Austin

Making carbon in stars

doi: 10.1016/j.nuclphysa.2005.05.178
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2005ZE04      Nucl.Phys. A758, 67c (2005)

R.G.T.Zegers, A.L.Cole, H.Akimune, S.M.Austin, D.Bazin, A.M.van den Berg, G.P.A.Berg, J.Brown, I.Daito, Y.Fujita, M.Fujiwara, K.Hara, M.N.Harakeh, G.W.Hitt, M.E.Howard, J.Janecke, T.Kawabataj T.Nakamura, H.Ueno, H.Schatz, B.M.Sherrill, M.Steiner

Weak interaction strengths for supernovae calculations via the (t, 3He) reaction on medium-heavy nuclei

NUCLEAR REACTIONS 58Ni(t, 3He), E=112 MeV/nucleon; measured σ(E, θ); deduced Gamow-Teller strength distribution.

doi: 10.1016/j.nuclphysa.2005.05.018
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2004HE33      Astrophys.J. 613, L73 (2004)

F.Herwig, S.M.Austin

Nuclear reaction rates and carbon star formation

NUCLEAR REACTIONS 14N(p, γ), E=low; analyzed reaction rates, uncertainties. Astrophysical implications discussed.

doi: 10.1086/424872
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2003AU01      Nucl.Phys. A719, 233c (2003)

S.M.Austin

Determining forbidden (L = 1) weak interaction strength using hadronic reactions

doi: 10.1016/S0375-9474(03)00925-4
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2002DA15      Nucl.Phys. A701, 14c (2002)

B.Davids, D.W.Anthony, T.Aumann, S.M.Austin, T.Baumann, D.Bazin, R.R.C.Clement, P.A.Lofy, T.Nakamura, B.M.Sherrill, J.Yurkon, C.N.Davids, H.Esbensen

A Kinematically Complete Measurement of the Coulomb Dissociation of 8B

NUCLEAR REACTIONS Pb(8B, p7Be), E=83 MeV/nucleon; measured particle spectra; deduced Coulomb dissociation σ. 7Be(p, γ), E=low; deduced astrophysical S-factor. Kinematically complete measurement.

doi: 10.1016/S0375-9474(01)01538-X
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2002DA26      Eur.Phys.J. A 15, 65 (2002)

B.Davids, S.M.Austin, D.Bazin, H.Esbensen, B.M.Sherrill, I.J.Thompson, J.A.Tostevin

Coulomb breakup of 8B and the flux of 8B neutrinos from the Sun

NUCLEAR REACTIONS Pb(8B, p7Be), E=83 MeV/nucleon; measured σ. 7Be(p, γ), E=low; deduced astrophysical S-factor. Continuum-discretized coupled-channels analysis.

doi: 10.1140/epja/i2001-10227-7
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2002DM01      Phys.Rev. C65, 015803 (2002)

V.F.Dmitriev, V.Zelevinsky, S.M.Austin

Do Hadronic Charge Exchange Reactions Measure Electroweak L = 1 Strength ?

NUCLEAR REACTIONS 12C(p, n), E=135 MeV; calculated σ(E, θ); deduced relationship with β-decay strengths. Eikonal model.

doi: 10.1103/PhysRevC.65.015803
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2001AU02      Phys.Rev. C63, 034322 (2001)

S.M.Austin, E.Adamides, A.Galonsky, T.Nees, W.A.Sterrenburg, D.E.Bainum, J.Rapaport, E.Sugarbaker, C.C.Foster, C.D.Goodman, D.J.Horen, C.A.Goulding, M.B.Greenfield

Splitting of the Dipole and Spin-Dipole Resonances

NUCLEAR REACTIONS 90,92,94Zr(p, n), E=79.2, 119.4 MeV; measured σ(E, θ); deduced splitting between GDR and spin-dipole resonance.

NUCLEAR STRUCTURE 90,92,94Zr, 112,116,124Sn, 208Pb; calculated resonance energies, dipole-spin-dipole splitting.

doi: 10.1103/PhysRevC.63.034322
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2001AU06      Nucl.Phys. A688, 70c (2001)

S.M.Austin, D.J.Mercer

Cosmic-Ray Production of 6, 7Li by the α + α Reaction

NUCLEAR REACTIONS 4He(α, 2p), (α, pn), (α, p), (α, n), E=159-620 MeV; measured σ. Comparison with previous results and with systematics. Astrophysical significance discussed.

doi: 10.1016/S0375-9474(01)00671-6
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2001DA03      Phys.Rev.Lett. 86, 2750 (2001)

B.Davids, D.W.Anthony, T.Aumann, S.M.Austin, T.Baumann, D.Bazin, R.R.C.Clement, C.N.Davids, H.Esbensen, P.A.Lofy, T.Nakamura, B.M.Sherrill, J.Yurkon

S17(0) Determined from the Coulomb Breakup of 83 MeV/Nucleon 8B

NUCLEAR REACTIONS Pb(8B, p7Be), E=83 MeV/nucleon; measured particle spectra, σ(E, θ). 7Be(p, γ), E=low; deduced astrophysical S-factor. Kinematically complete measurement, first-order perturbation theory analysis.

doi: 10.1103/PhysRevLett.86.2750
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2001DA11      Phys.Rev. C63, 065806 (2001)

B.Davids, S.M.Austin, D.Bazin, H.Esbensen, B.M.Sherrill, I.J.Thompson, J.A.Tostevin

Electromagnetic Dissociation of 8B and the Rate of the 7Be(p, γ)8B Reaction in the Sun

NUCLEAR REACTIONS Ag, Pb(8B, p7Be), E=44, 81, 83 MeV/nucleon; measured fragment spectra, longitudinal momentum distributions; deduced Coulomb dissociation σ. 7Be(p, γ), E=low; deduced astrophysical S-factor. Exclusive and inclusive measurements.

doi: 10.1103/PhysRevC.63.065806
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2001HA12      Nucl.Phys. A682, 356c (2001)

G.Hackman, S.M.Austin, T.Glasmacher, T.Aumann, B.A.Brown, R.W.Ibbotson, K.Miller, B.Pritychenko, L.A.Riley, B.Roeder, E.Spears

Intermediate-Energy Coulomb Excitation of 19Ne

NUCLEAR REACTIONS 197Au(19Ne, 19Ne'), E=55 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 19Ne deduced levels, J, π, widths, excitation B(E2), B(M1), B(E1). Secondary beam from 20Ne fragmentation. Shell model calculations.

doi: 10.1016/S0375-9474(00)00660-6
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2001ME13      Phys.Rev. C63, 065805 (2001)

D.J.Mercer, S.M.Austin, J.A.Brown, S.A.Danczyk, S.E.Hirzebruch, J.H.Kelley, T.Suomijarvi, D.A.Roberts, T.P.Walker

Production of A = 6, 7 Nuclides in the α + α Reaction and Cosmic Ray Nucleosynthesis

NUCLEAR REACTIONS 4He(α, 2p), (α, np), (α, d), (α, p), (α, n), E=160, 280, 620 MeV; measured σ(θ), σ. Astrophysical implications discussed.

doi: 10.1103/PhysRevC.63.065805
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2000HA26      Phys.Rev. C61, 052801 (2000)

G.Hackman, S.M.Austin, T.Glasmacher, T.Aumann, B.A.Brown, R.W.Ibbotson, K.Miller, B.Pritychenko, L.A.Riley, B.Roeder, E.Spears

Intermediate-Energy Coulomb Excitation of 19Ne

NUCLEAR REACTIONS 197Au(19Ne, 19Ne'), E=55 MeV/nucleon; measured Eγ, Iγ following projectile Coulomb excitation. 19Ne transitions deduced B(λ). Secondary beam from 20Ne fragmentation. Comparison with mirror nucleus, shell model calculations.

doi: 10.1103/PhysRevC.61.052801
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2000RA17      Phys.Rev. C62, 014607 (2000)

K.A.G.Rao, A.Nadasen, D.Sisan, W.Yuhasz, D.Mercer, S.M.Austin, P.G.Roos, R.E.Warner

4He + 4He Elastic Scattering at 280 and 620 MeV

NUCLEAR REACTIONS 4He(α, α), E=280, 620 MeV; measured σ(θ); deduced α-α interaction features. Optical model analysis, Woods-Saxon potential.

doi: 10.1103/PhysRevC.62.014607
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1999AH07      Phys.Rev. C60, 064601 (1999)

I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, C.M.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, A.L.Hallin, Th.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.M.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, A.R.Young, J.E.Yurkon

Positron-Electron Pairs Produced in Heavy-Ion Collisions

NUCLEAR REACTIONS 232Th(238U, X), E=5.95 MeV/nucleon; 181Ta(238U, X), E=5.95, 6.1, 6.3 MeV/nucleon; measured positron, electron spectra, multiplicities, e-e+-coin, angular correlation; deduced no sharp structure in sum-energy spectra. APEX spectrometer.

doi: 10.1103/PhysRevC.60.064601
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1999AU02      Nucl.Phys. A649, 279c (1999)

S.M.Austin

Nuclear Physics and Supernovae

doi: 10.1016/S0375-9474(99)00073-1
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1999SH30      Nucl.Instrum.Methods Phys.Res. A432, 299 (1999)

B.M.Sherrill, H.Akimune, S.M.Austin, D.Bazin, A.M.van den Berg, G.P.A.Berg, J.Caggiano, I.Daito, H.Fujimura, Y.Fujita, M.Fujiwara, K.Hara, M.N.Harakeh, J.Janecke, T.Kawabata, A.Navin, D.A.Roberts, M.Steiner

Charge-Exchange Reactions with a Secondary Triton Beam

NUCLEAR REACTIONS 12C(t, 3He), E ≈ 350 MeV; measured particle spectra, σ(E, α). Secondary beam from α-particle fragmentation.

doi: 10.1016/S0168-9002(99)00518-5
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1998AD12      Rev.Mod.Phys. 70, 1265 (1998)

E.G.Adelberger, S.M.Austin, J.B.Bahcall, A.B.Balantekin, G.Bogaert, L.S.Brown, L.Buchmann, F.E.Cecil, A.E.Champagne, L.de Braeckeleer, C.A.Duba, S.R.Elliott, S.J.Freedom, M.Gai, G.Goldring, C.R.Gould, A.Gruzinov, W.C.Haxton, K.M.Heeger, E.Henley, C.W.Johnson, M.Kamionkowski, R.W.Kavanagh, S.E.Koonin, K.Kubodera, K.Langanke, T.Motobayashi, V.Pandharipande, P.Parker, R.G.H.Robertson, C.Rolfs, R.F.Sawyer, N.Shaviv, T.D.Shoppa, K.A.Snover, E.Swanson, R.E.Tribble, S.Turck-Chieze, J.F.Wilkerson

Solar Fusion Cross Sections

NUCLEAR REACTIONS 7Be, 12,13C, 15N, 16,17,18O(p, γ), 14,15N, 17,18O(p, α), 7Li(d, p), 3He(p, e+), (α, γ), (3He, 2p), 1H(p, e+), E=low; compiled, analyzed S-factor data, calculations; deduced implications for solar neutrino flux calculations.

doi: 10.1103/RevModPhys.70.1265
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1998DA05      Phys.Lett. 418B, 27 (1998)

I.Daito, H.Akimune, S.M.Austin, D.Bazin, G.P.A.Berg, J.A.Brown, B.S.Davids, Y.Fujita, H.Fujimura, M.Fujiwara, R.Hazama, T.Inomata, K.Ishibashi, J.Janecke, S.Nakayama, K.Pham, D.A.Roberts, B.M.Sherrill, M.Steiner, A.Tamii, M.Tanaka, H.Toyokawa, M.Yosoi

Gamow-Teller Strengths from (t, 3He) Charge-Exchange Reactions on Light Nuclei

NUCLEAR REACTIONS 9Be, 10,11B, 12,13C(t, 3He), E=127 MeV/nucleon; measured zero degree 3He spectra. 9Li, 10,11Be, 12,13B deduced Gamow-Teller strengths. Radioactive beam, dispersion matching.

doi: 10.1016/S0370-2693(97)01393-2
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1998DA14      Phys.Rev.Lett. 81, 2209 (1998)

B.Davids, D.W.Anthony, S.M.Austin, D.Bazin, B.Blank, J.A.Caggiano, M.Chartier, H.Esbensen, P.Hui, C.F.Powell, H.Scheit, B.M.Sherrill, M.Steiner, P.Thirolf, J.Yurkon, A.Zeller

Measurement of E2 Transitions in the Coulomb Dissociation of 8B

NUCLEAR REACTIONS 208Pb(8B, p7Be), E=44, 81 MeV/nucleon; measured fragments longitudinal momentum distributions; deduced relative E2 transition strength.

doi: 10.1103/PhysRevLett.81.2209
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1998WU01      Phys.Rev.Lett. 80, 2085 (1998)

A.H.Wuosmaa, I.Ahmad, S.M.Fischer, J.P.Greene, G.Hackman, V.Nanal, G.Savard, J.P.Schiffer, P.Wilt, S.M.Austin, B.A.Brown, S.J.Freedman, J.J.Connell

β+ Decay Partial Half-Life of 54Mn and Cosmic Ray Chronometry

RADIOACTIVITY 54Mn(β+); measured β+ spectra, β+-decay branching ratio, partial T1/2. Astrophysical implications.

doi: 10.1103/PhysRevLett.80.2085
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1997AH01      Phys.Rev.Lett. 78, 618 (1997)

I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, A.L.Hallin, T.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.R.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, G.Xu, A.Young, J.E.Yurkon, and the APEX Collaboration

Search for Monoenergetic Positron Emission from Heavy-Ion Collisions at Coulomb-Barrier Energies

NUCLEAR REACTIONS 181Ta(238U, X), E=5.95-6.3 MeV/nucleon; 232Th(238U, X), E=5.95 MeV/nucleon; measured positron energy spectra; deduced no structure.

doi: 10.1103/PhysRevLett.78.618
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1997AH04      Phys.Rev. C55, R2755 (1997)

I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.A.Chishti, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, J.S.Greenberg, S.B.Gazes, A.L.Hallin, T.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, G.Xu, A.Young, J.E.Yurkon, and the APEX Collaboration

Internal Pair Conversion in Heavy Nuclei

NUCLEAR REACTIONS 206Pb(206Pb, X), E=5.90 MeV/nucleon; measured e+e--sum energy spectra, Doppler corrected Eγ; deduced internal pair conversion to gamma branching ratio. 232Th(208Pb, X), E=5.80 MeV/nucleon; 238U(208Pb, X), E=5.80 MeV/nucleon; 181Ta(238U, X), E=5.95 MeV/nucleon; 232Th(238U, X), E=5.90 MeV/nucleon; measured e+e--sum energy, Doppler corrected Eγ; deduced no discrete lines evidence in e+e- spectra. 238U deduced new levels evidence.

doi: 10.1103/PhysRevC.55.R2755
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1997AH05      Z.Phys. A358, 235 (1997)

I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, P.Chowdhury, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, A.L.Hallin, T.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, A.Young, J.E.Yurkon, and the APEX Collaboration

The Positron-Electron Peak Puzzle: Results from APEX

NUCLEAR REACTIONS 232Th(238U, X), E=5.78-5.95 MeV/nucleon; 181Ta(238U, X), E=5.79-6.3 MeV/nucleon; measured total (e+)(heavy-ion)-, (e+e-)(heavy-ion)-coin events number; deduced very low light neutral particle production upper limits.

doi: 10.1007/s002180050316
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1997DA28      Nucl.Instrum.Methods Phys.Res. A397, 465 (1997); Erratum Nucl.Instrum.Methods Phys.Res. A402, 177 (1998)

I.Daito, H.Akimune, S.M.Austin, D.Bazin, G.P.A.Berg, J.A.Brown, B.S.Davids, Y.Fujita, H.Fujimura, M.Fujiwara, R.Hazama, T.Inomata, K.Ishibashi, J.Janecke, S.Nakayama, K.Pham, D.A.Roberts, B.M.Sherrill, M.Steiner, A.Tamii, M.Tanaka, H.Toyokawa, M.Yosoi

(t, 3He) Reaction; New tool for studying spin-isospin excitations in neutron rich nuclei

NUCLEAR REACTIONS 12C, 10B(t, 3He), E=381 MeV; measured σ(E(3He), θ). 12B, 10Be deduced levels spin-isospin characteristics.

doi: 10.1016/S0168-9002(97)00825-5
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1997ME02      Phys.Rev. C55, 946 (1997)

D.J.Mercer, S.M.Austin, B.G.Glagola

Suggested Correction to 6He, 6,7Li, and 7Be Production Cross Sections in α + α Reactions between 60 and 160 MeV

NUCLEAR REACTIONS 4He(α, α), (α, X)6Li/7Li/7Be/6He, E=60-160 MeV; analyzed residuals production data; deduced normalization inconsistencies in earlier work, astrophysical implications.

doi: 10.1103/PhysRevC.55.946
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1996AH05      Acta Phys.Pol. B27, 387 (1996)

I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, P.Chowdhury, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.Gazes, A.L.Hallin, T.Happ, N.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, A.Young, J.E.Yurkon, and the APEX Collaboration

The Positron Peak Puzzle - Recent Results from APEX

NUCLEAR REACTIONS 232Th(238U, X), E=5.95 MeV/nucleon; 181Ta(238U, X), E=5.96-6.3 MeV/nucleon; 206Pb(206Pb, X), E not given; analyzed e+e--sum energy spectra. 232Th, 238U(208Pb, X), E=5.8 MeV/nucleon; 232Th, 181Ta(238U, X), E=5.95 MeV/nucleon; 206Pb(206Pb, X), E=5.9 MeV/nucleon; analyzed Doppler reconstructed γ spectra; deduced limits on 1.78 MeV 238U transition possible contribution to (heavy ion)γ-coin.


1996AH07      Nucl.Instrum.Methods Phys.Res. A370, 539 (1996)

I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, P.Chowdhury, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, J.S.Greenberg, J.P.Greene, A.L.Hallin, Th.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.M.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, G.Xu, A.R.Young, J.E.Yurkon

A Solenoidal Spectrometer for Positron-Electron Pairs Produced in Heavy-Ion Collisions

RADIOACTIVITY 85Sr(EC); 113Sn(EC); 203Hg(β-); measured electron spectra; deduced apparatus response, efficiency. New solenoidal spectrometer.

NUCLEAR REACTIONS 181Ta(238U, X), E=6.1 MeV/nucleon; measured γ-, positron energy spectra. New solenoidal spectrometer.

doi: 10.1016/0168-9002(95)00829-2
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1996KE16      Phys.Rev.Lett. 77, 5020 (1996)

J.H.Kelley, S.M.Austin, A.Azhari, D.Bazin, J.A.Brown, H.Esbensen, M.Fauerbach, M.Hellstrom, S.E.Hirzebruch, R.A.Kryger, D.J.Morrissey, R.Pfaff, C.F.Powell, E.Ramakrishnan, B.M.Sherrill, M.Steiner, T.Suomijarvi, M.Thoennessen

Study of the Breakup Reaction 8B → 7Be + p: Absorption effects and E2 strength

NUCLEAR REACTIONS 9Be, 197Au(8B, p7Be), E=41 MeV/nucleon; measured parallel, transverse momenta. Models comparison.

doi: 10.1103/PhysRevLett.77.5020
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1996ST05      Phys.Rev.Lett. 76, 26 (1996)

M.Steiner, S.M.Austin, D.Bazin, W.Benenson, C.A.Bertulani, J.A.Brown, M.Fauerbach, M.Hellstrom, E.Kashy, J.H.Kelley, R.A.Kryger, T.Kubo, N.A.Orr, R.Pfaff, B.M.Sherrill, M.Thoennessen, S.J.Yennello, B.M.Young, P.D.Zecher, D.J.Morrissey, C.F.Powell

First Study of Heavy-Ion Mirror Charge Exchange

NUCLEAR REACTIONS 13C(13N, 13C), E=57, 105 MeV/nucleon; measured σ(θ), spectra; deduced Gamow-Teller to Fermi-transition unit σ(ratio).

doi: 10.1103/PhysRevLett.76.26
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1995AH01      Nucl.Phys. A583, 247c (1995)

I.Ahmad, S.M.Austin, B.B.Back, D.Bazin, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, P.Chowdhury, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, J.S.Greenberg, A.L.Hallin, T.Happ, J.Last, N.Kaloskamis, E.Kashy, W.Kutschera, C.J.Lister, M.Liu, M.R.Maier, D.Mercer, A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, G.Xu, A.Young, J.E.Yurkon

Positron Production in Heavy Ion Collisions: Current status of the problem

NUCLEAR REACTIONS 181Ta(238U, X), E=5.9-6.3 MeV/nucleon; compiled, analyzed, reviewed electron, positron production data.

doi: 10.1016/0375-9474(94)00667-C
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1995AH06      Phys.Rev.Lett. 75, 2658 (1995)

I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, P.Chowdhury, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, A.L.Hallin, T.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, G.Xu, A.Young, J.E.Yurkon, and the APEX Collaboration

Search for Narrow Sum-Energy Lines in Electron-Positron Pair Emission from Heavy-Ion Collisions Near the Coulomb Barrier

NUCLEAR REACTIONS 181Ta(238U, X), E=5.95-6.3 MeV/nucleon; 232Th(238U, X), E=5.95 MeV/nucleon; measured pair emission sum spectra; deduced no sharp lines evidence, neutral particle isolated decay related features.

doi: 10.1103/PhysRevLett.75.2658
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1995BL20      Phys.Lett. 362B, 34 (1995)

J.Blomgren, K.Lindh, N.Anantaraman, S.M.Austin, G.P.A.Berg, B.A.Brown, J.-M.Casandjian, M.Chartier, M.D.Cortina-Gil, S.Fortier, M.Hellstrom, J.R.Jongman, J.H.Kelley, A.Lepine-Szily, I.Lhenry, M.Mac Cormick, W.Mittig, J.Nilsson, N.Olsson, N.A.Orr, E.Ramakrishnan, P.Roussel-Chomaz, B.M.Sherrill, P.-E.Tegner, J.S.Winfield, J.A.Winger

Search for Double Gamow-Teller Strength by Heavy-Ion Double Charge Exchange

NUCLEAR REACTIONS 24Mg(18O, 18Ne), E=76 MeV/nucleon; measured σ(θ, E(cm)); deduced σ(θ), double Gamow-Teller excitation suppression evidence.

doi: 10.1016/0370-2693(95)01190-2
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1995KE02      Phys.Rev.Lett. 74, 30 (1995)

J.H.Kelley, S.M.Austin, R.A.Kryger, D.J.Morrissey, N.A.Orr, B.M.Sherrill, M.Thoennessen, J.S.Winfield, J.A.Winger, B.M.Young

Parallel Momentum Distributions as a Probe of Halo Wave Functions

NUCLEAR REACTIONS 238U, 9Be, 93Nb, 181Ta(11Be, 10Be), E=63 MeV/nucleon; measured 9Be parallel momentum distribution, σ(θ) vs momentum. 11Be deduced one-neutron halo existence. Projectile breakup.

doi: 10.1103/PhysRevLett.74.30
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1995OR02      Phys.Rev. C51, 3116 (1995)

N.A.Orr, N.Anantaraman, S.M.Austin, C.A.Bertulani, K.Hanold, J.H.Kelley, R.A.Kryger, D.J.Morrissey, B.M.Sherrill, G.A.Souliotis, M.Steiner, M.Thoennessen, J.S.Winfield, J.A.Winger, B.M.Young

Momentum Distributions of 9Li Fragments from the Breakup of 11Li and the Neutron Halo

NUCLEAR REACTIONS 9Be, 93Nb, 181Ta, 238U(11Li, 9LiX), E ≈ 66 MeV/nucleon; measured σ(θ(9Li)) vs momentum. 11Li deduced neutron halo characteristics. Energy-loss spectrometer.

doi: 10.1103/PhysRevC.51.3116
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1994AU06      Nucl.Phys. A577, 51c (1994)

S.M.Austin

Spin Isospin Strength from Heavy Ions- Stable and Radioactive Beams

NUCLEAR REACTIONS 26Mg(12C, 12N), E=70 MeV/nucleon; 14N(6Li, 6He), E ≤ 35 MeV/nucleon; compiled, reviewed data, analyses; deduced spin-strength investigation related features.

doi: 10.1016/0375-9474(94)90833-8
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1994AU08      Phys.Rev.Lett. 73, 30 (1994)

S.M.Austin, N.Anantaraman, W.G.Love

Charge Exchange Reactions and the Efficiency of Solar Neutrino Detectors

NUCLEAR REACTIONS 37Cl(p, n), E not given; calculated σ(q ≈ 0)/B(GT); deduced implications for solar ν problem.

doi: 10.1103/PhysRevLett.73.30
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1994ME24      Nucl.Instrum.Methods Phys.Res. A350, 491 (1994)

D.J.Mercer, D.Mikolas, J.Yurkon, S.M.Austin, D.Bazin, S.Gaff, E.Kashy, D.Kataria, J.S.Winfield, R.R.Betts, D.J.Henderson, A.L.Hallin, M.Liu, F.L.H.Wolfs

A Large Solid-Angle Array for Heavy Ions from APEX

NUCLEAR REACTIONS 58Ni(58Ni, 58Ni), E=200 MeV; measured σ(θ). 181Ta(238U, X), E=1.45 GeV; measured fragment tof, mass spectra. Large solid-angle array of low pressure multi-wire proportional counters. Other reactions studied.

doi: 10.1016/0168-9002(94)91249-1
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1992OR03      Phys.Rev.Lett. 69, 2050 (1992)

N.A.Orr, N.Anantaraman, S.M.Austin, C.A.Bertulani, K.Hanold, J.H.Kelley, D.J.Morrissey, B.M.Sherrill, G.A.Souliotis, M.Thoennessen, J.S.Winfield, J.A.Winger

Momentum Distributions of 9Li Fragment Following the Breakup of 11Li

NUCLEAR REACTIONS 9Be, 93Nb, 181Ta(11Li, 9Li), E=66 MeV/nucleon; measured ejectile momentum distributions; deduced projectile extended neutron distribution role.

doi: 10.1103/PhysRevLett.69.2050
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1992OS03      Phys.Rev. C45, 2854 (1992)

F.Osterfeld, N.Anantaraman, S.M.Austin, J.A.Carr, J.S.Winfield

Heavy-Ion Charge-Exchange Reactions and the Measurement of Gamow-Teller Strength

NUCLEAR REACTIONS 26Mg(12C, 12B), E=70 MeV/nucleon; analyzed σ(θ). 26Al deduced Gamow-Teller strength. Strong absorption model, heavy-ion induced charge-exchange reactions.

doi: 10.1103/PhysRevC.45.2854
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1992WI04      Phys.Rev. C45, 2300 (1992)

J.L.Wile, D.E.Fields, K.Kwiatkowski, S.J.Yennello, K.B.Morley, E.Renshaw, V.E.Viola, C.K.Gelbke, W.G.Lynch, N.Carlin, H.M.Xu, W.G.Gong, M.B.Tsang, J.Pochodzalla, R.T.deSouza, D.J.Fields, S.M.Austin

Excitation Functions for Complex Fragment Emission in the E/A = 20-100 MeV 14N + (nag)Ag, 197Au Reactions

NUCLEAR REACTIONS Ag, 197Au(14N, X), E=20-100 MeV/nucleon; measured σ(fragment θ, E); deduced fragment emission mechanism. Three-source model.

doi: 10.1103/PhysRevC.45.2300
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1991AN12      Phys.Rev. C44, 398 (1991)

N.Anantaraman, J.S.Winfield, S.M.Austin, J.A.Carr, C.Djalali, A.Gillibert, W.Mittig, J.A.Nolen, Jr., Z.E.Long

(12C, 12B) and (12C, 12N) Reactions at E/A = 70 MeV as Spin Probes: Calibration and application to 1+ states in 56Mn

NUCLEAR REACTIONS 12C, 26Mg, 54Fe, 58Ni, 90Zr(12C, 12B), 12C, 56Fe(12C, 12N), E=840 MeV; measured σ(θ). 56Mn deduced 1+ level Gamow-Teller strengths. DWBA, shell model.

doi: 10.1103/PhysRevC.44.398
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1990FO04      Phys.Rev. C41, 2689 (1990)

S.Fortier, S.Gales, S.M.Austin, W.Benenson, G.M.Crawley, C.Djalali, J.S.Winfield, G.Yoo

One-Nucleon-Transfer Reactions Induced by 20Ne at 500 and 600 MeV

NUCLEAR REACTIONS 90Zr, 208Pb(20Ne, 19Ne), (20Ne, 21Ne), (20Ne, 21Na), E=500, 600 MeV; measured σ(fragment E, θ) vs excitation. 91Zr, 209Pb deduced structure characteristics. DWBA analysis. Enriched targets.

doi: 10.1103/PhysRevC.41.2689
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1989FI05      Phys.Lett. 220B, 356 (1989)

D.E.Fields, K.Kwiatkowski, D.Bonser, R.W.Viola, V.E.Viola, W.G.Lynch, J.Pochodzalla, M.B.Tsang, C.K.Gelbke, D.J.Fields, S.M.Austin

Non-Equilibrium versus Equilibrium Emission of Complex Fragments Emitted in 14N Induced Reactions on Ag and Au at E/A = 20-50 MeV

NUCLEAR REACTIONS 197Au, Ag(14N, X), E=20-50 MeV/nucleon; measured σ(fragment θ, E) for fragment Z=3-12; deduced reaction mechanism.

doi: 10.1016/0370-2693(89)90887-3
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1989MA35      Phys.Rev. C40, 540 (1989)

R.Madey, B.S.Flanders, B.D.Anderson, A.R.Baldwin, J.W.Watson, S.M.Austin, C.C.Foster, H.V.Klapdor, K.Grotz

Low-Lying Structures in the Gamow-Teller Strength Functions for the Double-Beta-Decaying Nuclei 76Ge, 82Se, 128Te, and 130Te

NUCLEAR REACTIONS 76Ge, 82Se, 128,130Te(p, n), E=134.4 MeV; measured neutron spectra at θ ≤ 8°. 76As, 82Br, 128,130I deduced Gamow-Teller transition strengths. Shell model comparison.

doi: 10.1103/PhysRevC.40.540
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1989WI07      Phys.Rev. C39, 1395 (1989)

J.S.Winfield, E.Adamides, S.M.Austin, G.M.Crawley, M.F.Mohar, C.A.Ogilvie, B.Sherrill, M.Torres, G.Yoo, A.Nadasen

12C-Induced Single Particle Transfer Reactions at E/A = 50 MeV

NUCLEAR REACTIONS 90Zr, 12C(12C, 13C), 208Pb, 27Al(12C, 11B), 40Ca(12C, 11C), E=600 MeV; measured σ(θ). 11C, 28Si, 41Ca, 89Y, 209Bi level deduced spectroscopic factors.

doi: 10.1103/PhysRevC.39.1395
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1988AN06      Nucl.Phys. A482, 331c (1988)

N.Anantaraman, S.M.Austin, J.S.Winfield

Heavy Ion Reactions as Probes for Spin Strength

NUCLEAR REACTIONS 56Fe(12C, 12N), E=840 MeV; measured σ(E(12N)). 56Mn deduced levels, possible J, π.

doi: 10.1016/0375-9474(88)90594-5
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1988WI09      Phys.Lett. 203B, 345 (1988)

J.S.Winfield, S.M.Austin, G.M.Crawley, C.Djalali, C.A.Ogilvie, R.J.Smith, Z.Chen, M.Torres

Energy Dependence of 12C + 12C Single-Neutron Transfer Cross Sections

NUCLEAR REACTIONS 12C(12C, 13C), E=25, 35, 50 MeV/nucleon; measured σ(θ); deduced σ(E), model parameters.

doi: 10.1016/0370-2693(88)90180-3
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1987AU04      Can.J.Phys. 65, 609 (1987)

S.M.Austin, N.Anantaraman, J.S.Winfield

Heavy-Ion Reactions as Spin Probes

NUCLEAR REACTIONS 7Li, 12,14C(6Li, 6He), E=14, 25, 35 MeV/nucleon; 26Mg, 90Zr(6Li, 6He), E=25, 35 MeV/nucleon; measured particle spectra, σ(θ); deduced effective interaction parameters, reaction mechanism.

doi: 10.1139/p87-086
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1987FO16      Phys.Rev. C36, 1830 (1987)

S.Fortier, S.Gales, S.M.Austin, W.Benenson, G.M.Crawley, C.Djalali, J.H.Lee, J.van der Plicht, J.S.Winfield

Search for High Excitation Energy Structures in 90Zr and 208Pb, via 20Ne Inelastic Scattering

NUCLEAR REACTIONS 90Zr, 208Pb(20Ne, 20Ne'), E=500, 600 MeV; measured σ(E(20Ne')); deduced structure, excitation mechanism.

doi: 10.1103/PhysRevC.36.1830
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1987MA19      Phys.Rev. C35, 2011 (1987); Erratum Phys.Rev. C36, 1647 (1987)

R.Madey, B.S.Flanders, B.D.Anderson, A.R.Baldwin, C.Lebo, J.W.Watson, S.M.Austin, A.Galonsky, B.H.Wildenthal, C.C.Foster

Gamow-Teller Strength in the 26Mg(p, n)26Al Reaction at 135 MeV and Its Fractionation into T=0, 1, and 2 Isospin Channels

NUCLEAR REACTIONS, MECPD 26Mg(p, n), E=134.4 MeV; measured σ(En); deduced σ(θ). 26Al deduced levels, J, π, T, Gamow-Teller transition strength distribution. Tof. DWIA.

doi: 10.1103/PhysRevC.35.2011
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1987WI09      Phys.Rev. C35, 1734 (1987)

J.S.Winfield, N.Anantaraman, S.M.Austin, Ziping Chen, A.Galonsky, J.van der Plicht, H.-L.Wu, C.C.Chang, G.Ciangaru

Mechanism of the (6Li, 6He) Reaction at Intermediate Energies and Its Suitability as a Spin Probe

NUCLEAR REACTIONS 7Li, 12,14C, 26Mg, 90Zr(6Li, 6He), E=14, 25, 35 MeV/nucleon; measured σ(E(6He)), σ(θ); deduced reaction mechanism. 7Be, 12,14C, 27Al, 90Zr deduced Gamow-Teller transition strengths, level excitation mechanism. Magnetic spectrometer. DWBA analyses.

doi: 10.1103/PhysRevC.35.1734
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1987WI16      Phys.Lett. 196B, 311 (1987)

J.S.Winfield, S.M.Austin, B.A.Brown

Core Polarization and the Coulomb Correction for Nucleon Scattering

NUCLEAR REACTIONS 12C, 28Si, 32S, 40Ca(n, n), (p, p), E not given; calculated model potential, neutron, proton Hartree-Fock potential differences. Core polarization, Coulomb correction, coupled-channels.

doi: 10.1016/0370-2693(87)90738-6
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1986AN29      Phys.Rev.Lett. 57, 2375 (1986)

N.Anantaraman, J.S.Winfield, S.M.Austin, A.Galonsky, J.van der Plicht, C.C.Chang, G.Ciangaru, S.Gales

(6Li, 6He) Reaction as a Probe of Spin-Transfer Strength

NUCLEAR REACTIONS 7Li, 12,14C, 26Mg, 90Zr(6Li, 6He), E=210 MeV; measured σ(E(6He)), σ(θ). 7Be, 12,14N, 26Al, 90Nb levels deduced σ, Gamow-Teller transition strength correlation. Spectrograph, focal plane detector. DWBA calculations.

doi: 10.1103/PhysRevLett.57.2375
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1986WI01      Phys.Rev. C33, 1 (1986)

J.S.Winfield, S.M.Austin, R.P.DeVito, U.E.P.Berg, Ziping Chen, W.Sterrenburg

Measurements of Elastic Neutron Scattering from 12C and 32S at 30.3 and 40.3 MeV: Limits on charge symmetry breaking in the nuclear mean field

NUCLEAR REACTIONS 12C, 32S(n, n), E=30.3, 40.3 MeV; measured σ(θ); 12C, 28Si, 32S, 40Ca(n, n), (p, p), E not given; analyzed σ(θ); deduced optical model parameters, real volume integrals. CCBA analysis.

doi: 10.1103/PhysRevC.33.1
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1986WI05      Phys.Rev. C33, 1333 (1986)

J.S.Winfield, N.Anantaraman, S.M.Austin, L.H.Harwood, J.van der Plicht, H.-L.Wu, A.F.Zeller

Mechanism of the Heavy-Ion Charge Exchange Reaction 12C(12C, 12N)12B at 35 MeV/Nucleon

NUCLEAR REACTIONS 12C(12C, 12N), E=420 MeV; measured σ(θ); deduced reaction mechanism, spin-flip residual interaction component strength. 12B deduced possible resonance. DWBA analysis.

doi: 10.1103/PhysRevC.33.1333
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1984TA02      Phys.Rev. C29, 764 (1984)

T.N.Taddeucci, R.R.Doering, A.Galonsky, S.M.Austin

(p, n) Reactions on 14C and 14N and the Effective Nucleon-Nucleon Interaction

NUCLEAR REACTIONS 14N(p, n), E=35.2 MeV; 14C(p, n), E=25.7, 35, 45 MeV; measured σ(θ); deduced optical potential isovector component energy dependence. 14N levels deduced spectroscopic coefficients, Gamow-Teller transition strengths. DWBA, Lane model analyses.

doi: 10.1103/PhysRevC.29.764
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1983DE44      Phys.Rev. C28, 2530 (1983)

R.P.DeVito, S.M.Austin, U.E.P.Berg, R.De Leo, W.A.Sterrenburg

Imaginary Part of the Coulomb Correction in Nucleon Scattering from 28Si

NUCLEAR REACTIONS 28Si(p, p), (n, n), E=14-40 MeV; measured σ(θ); deduced optical model parameters.

doi: 10.1103/PhysRevC.28.2530
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1983DE45      Nucl.Instrum.Methods 215, 423 (1983)

R.P.Devito, S.M.Austin, U.E.P.Berg, W.Sterrenburg, L.E.Young

Techniques for Measuring Neutron Scattering Cross Sections with a Beam Swinger

NUCLEAR REACTIONS Si(n, n), E=40 MeV; measured σ(En). 208Pb(n, n), E=30.3 MeV; measured σ(θ). Beam swinger based tof system.

doi: 10.1016/0167-5087(83)90473-8
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1983RO01      Phys.Rev. C27, 11 (1983)

R.G.H.Roberston, P.Dyer, T.J.Bowles, R.E.Brown, N.Jarmie, C.J.Maggiore, S.M.Austin

Cross Section of the Capture Reaction 3He(α, γ)7Be

NUCLEAR REACTIONS, ICPND 3He(α, γ), 4He(3He, γ), E(cm)=897 keV; measured σ; deduced astrophysical capture σ. Activation technique.

doi: 10.1103/PhysRevC.27.11
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1982GL01      Phys.Rev. C25, 34 (1982)

B.G.Glagola, V.E.Viola, Jr., H.Breuer, N.S.Chant, A.Nadasen, P.G.Roos, S.M.Austin, G.J.Mathews

Production of 6H, 6Li, 7Li, and 7Be in the α + α Reaction between 60-160 MeV

NUCLEAR REACTIONS 4He(α, X), E=60-160 MeV; measured σ(fragment θ, E), production σ(E) for 6He, 6,7Li, 7Be.

doi: 10.1103/PhysRevC.25.34
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1982PE06      Nucl.Phys. A383, 355 (1982)

F.Petrovich, R.H.Howell, C.H.Poppe, S.M.Austin, G.M.Crawley

Nucleon Scattering from Light Nuclei (I). The Targets 6Li and 7Li

NUCLEAR REACTIONS 6,7Li(p, p), (p, p'), E=24.4 MeV; measured σ(Ep'), σ(θ); 6,7Li(p, p), (p, p'), (p, n), E=24-50 MeV; analyzed data. Distorted wave approximation, microscopic folding model.

doi: 10.1016/0375-9474(82)90083-5
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1981DE21      Phys.Rev.Lett. 47, 628 (1981)

R.P.DeVito, S.M.Austin, W.Sterrenburg, U.E.P.Berg

Limit on Charge Symmetry Breaking in the Optical Model and the Coulomb-Energy Anomaly

NUCLEAR REACTIONS 40Ca(n, n), E=30.3, 40 MeV; measured σ(θ); deduced optical potentials, charge symmetry breaking limit.

doi: 10.1103/PhysRevLett.47.628
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset12724.


1981ES04      Phys.Rev. C24, 792 (1981)

J.-L.Escudie, S.M.Austin, A.Boudard, G.Bruge, A.Chaumeaux, L.Farvacque, D.Legrand, J.C.Lugol, B.Mayer, P.Belery, P.T.Debevec, T.Delbar, J.Deutsch, G.Gregoire, R.Prieels, J.M.Cameron, C.Glashausser, C.A.Whitten

Search for Enhancements due to Pion Condensation Precursors in (p, p') Reactions on 12C

NUCLEAR REACTIONS 12C(p, p'), E=402 MeV; measured σ(θ, Ep); deduced negligible pion condensation precursor effects.

doi: 10.1103/PhysRevC.24.792
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1981HO03      Phys.Lett. 99B, 383 (1981)

D.J.Horen, C.D.Goodman, D.E.Bainum, C.C.Foster, C.Gaarde, C.A.Goulding, M.B.Greenfield, J.Rapaport, T.N.Taddeucci, E.Sugarbaker, T.Masterson, S.M.Austin, A.Galonsky, W.Sterrenburg

Energy Systematics of the Giant Gamow-Teller Resonance and a Charge-Exchange Dipole Spin-Flip Resonance

NUCLEAR REACTIONS 90,92,94Zr, 112,116,124Sn, 169Tm, 208Pb(p, n), E=120, 160, 200 MeV; measured σ(En, θ). 90,92,94Nb, 112,116,124Sb, 169Yb, 208Bi deduced giant Gamow-Teller, charge exchange dipole spin-flip resonance energy systematics. Tof.

doi: 10.1016/0370-2693(81)90553-0
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1981NA14      Phys.Rev. C24, 2727 (1981)

J.Narayanaswamy, P.Dyer, S.R.Faber, S.M.Austin

Production of 6.13-MeV Gamma Rays from the 16O(p, p'γ)16O Reaction at 23.7 and 44.6 MeV

NUCLEAR REACTIONS 16O(p, p'γ), E=23.7, 44.6 MeV; measured γ(θ), σ(total). Legendre polynomial analysis.

doi: 10.1103/PhysRevC.24.2727
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Note: The following list of authors and aliases matches the search parameter S.Austin: , S.A.AUSTIN, S.M.AUSTIN