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NSR database version of April 11, 2024.

Search: Author = R.Varner

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2022JO01      Phys.Rev. C 105, 024602 (2022)

K.L.Jones, A.Bey, S.Burcher, J.M.Allmond, A.Galindo-Uribarri, D.C.Radford, S.Ahn, A.Ayres, D.W.Bardayan, J.A.Cizewski, R.F.Garcia Ruiz, M.E.Howard, R.L.Kozub, J.F.Liang, B.Manning, M.Matos, C.D.Nesaraja, P.D.O'Malley, E.Padilla-Rodal, S.D.Pain, S.T.Pittman, A.Ratkiewicz, K.T.Schmitt, M.S.Smith, D.W.Stracener, R.L.Varner

Neutron transfer reactions on the ground state and isomeric state of a 130Sn beam

NUCLEAR REACTIONS 9Be, 13C(130Sn, 131Sn), E=520 MeV [secondary 130Sn and 130mSn beams from U(p, F)]; measured reaction products, Eγ, Iγ, Eα, αα-coin, αγ-coin, ααγ-coin. 131Sn; deduced levels, J, π, improved energy values for 1p-2h states. Discussed the probability of one-neutron transfer from the 7- isomeric state in 130Sn. CLARION array of 11 Compton-suppressed HPGe clover detectors combined with BareBall CsI(Tl) array at HRIBF.

doi: 10.1103/PhysRevC.105.024602
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2020GR01      Phys.Rev.Lett. 124, 032502 (2020)

T.J.Gray, J.M.Allmond, A.E.Stuchbery, C.-H.Yu, C.Baktash, A.Gargano, A.Galindo-Uribarri, D.C.Radford, J.C.Batchelder, J.R.Beene, C.R.Bingham, L.Coraggio, A.Covello, M.Danchev, C.J.Gross, P.A.Hausladen, N.Itaco, W.Krolas, J.F.Liang, E.Padilla-Rodal, J.Pavan, D.W.Stracener, R.L.Varner

Early Signal of Emerging Nuclear Collectivity in Neutron-Rich 129Sb

NUCLEAR REACTIONS 50Ti(129Sb, 129Sb'), E=400 MeV; measured reaction products, Eγ, Iγ. 129Sb; deduced γ-ray energies, J, π, B(E2). Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.124.032502
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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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2019AK14      Phys.Rev. D 100, 115020 (2019)

D.Akimov, J.B.Albert, P.An, C.Awe, P.S.Barbeau, B.Becker, V.Belov, M.A.Blackston, A.Bolozdynya, B.Cabrera-Palmer, M.Cervantes, J.I.Collar, R.L.Cooper, J.Daughhetee, M.del Valle Coello, J.A.Detwiler, M.D'Onofrio, Y.Efremenko, E.M.Erkela, S.R.Elliott, L.Fabris, M.Febbraro, W.Fox, A.Galindo-Uribarri, M.P.Green, K.S.Hansen, M.R.Heath, S.Hedges, T.Johnson, M.Kaemingk, L.J.Kaufman, A.Khromov, A.Konovalov, E.Kozlova, A.Kumpan, L.Li, J.T.Librande, J.M.Link, J.Liu, K.Mann, D.M.Markoff, H.Moreno, P.E.Mueller, J.Newby, D.S.Parno, S.Penttila, D.Pershey, D.Radford, R.Rapp, H.Ray, J.Raybern, O.Razuvaeva, D.Reyna, G.C.Rich, D.Rudik, J.Runge, D.J.Salvat, K.Scholberg, A.Shakirov, G.Simakov, G.Sinev, W.M.Snow, V.Sosnovtsev, B.Suh, R.Tayloe, K.Tellez-Giron-Flores, R.T.Thornton, I.Tolstukhin, J.Vanderwerp, R.L.Varner, C.J.Virtue, G.Visser, C.Wiseman, T.Wongjirad, J.Yang, Y.-R.Yen, J.Yoo, C.-H.Yu, J.Zettlemoyer

First constraint on coherent elastic neutrino-nucleus scattering in argon

NUCLEAR REACTIONS Ar, 133Cs, 127I, Ge, 23Na(ν, ν), E, 100 MeV; measured reaction products, nuclear recoils; deduced a limit on coherent elastic neutrino-nucleus scattering.

doi: 10.1103/PhysRevD.100.115020
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2019AS01      Nucl.Instrum.Methods Phys.Res. A922, 287 (2019)

J.Ashenfelter, A.B.Balantekin, C.Baldenegro, H.R.Band, C.D.Bass, D.E.Bergeron, D.Berish, L.J.Bignell, N.S.Bowden, J.Boyle, J.Bricco, J.P.Brodsky, C.D.Bryan, A.B.Telles, J.J.Cherwinka, T.Classen, K.Commeford, A.J.Conant, A.A.Cox, D.Davee, D.Dean, G.Deichert, M.V.Diwan, M.J.Dolinski, A.Erickson, M.Febbraro, B.T.Foust, J.K.Gaison, A.Galindo-Uribarri, C.E.Gilbert, K.E.Gilje, A.Glenn, B.W.Goddard, B.T.Hackett, K.Han, S.Hans, A.B.Hansell, K.M.Heeger, B.Heffron, J.Insler, D.E.Jaffe, X.Ji, D.C.Jones, K.Koehler, O.Kyzylova, C.E.Lane, T.J.Langford, J.LaRosa, B.R.Littlejohn, F.Lopez, X.Lu, D.A.Martinez Caicedo, J.T.Matta, R.D.McKeown, M.P.Mendenhall, H.J.Miller, J.M.Minock, P.E.Mueller, H.P.Mumm, J.Napolitano, R.Neilson, J.A.Nikkel, D.Norcini, S.Nour, D.A.Pushin, X.Qian, E.Romero-Romero, R.Rosero, D.Sarenac, B.S.Seilhan, R.Sharma, P.T.Surukuchi, C.Trinh, M.A.Tyra, R.L.Varner, B.Viren, J.M.Wagner, W.Wang, B.White, C.White, J.Wilhelmi, T.Wise, H.Yao, M.Yeh, Y.-R.Yen, A.Zhang, C.Zhang, X.Zhang, M.Zhao

The PROSPECT reactor antineutrino experiment

doi: 10.1016/j.nima.2018.12.079
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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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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.


2017AL06      Phys.Rev.Lett. 118, 092503 (2017)

J.M.Allmond, A.E.Stuchbery, C.Baktash, A.Gargano, A.Galindo-Uribarri, D.C.Radford, C.R.Bingham, B.A.Brown, L.Coraggio, A.Covello, M.Danchev, C.J.Gross, P.A.Hausladen, N.Itaco, K.Lagergren, E.Padilla-Rodal, J.Pavan, M.A.Riley, N.J.Stone, D.W.Stracener, R.L.Varner, C.-H.Yu

Electromagnetic Moments of Radioactive 136Te and the Emergence of Collectivity 2p (+) 2n Outside of Double-Magic 132Sn

NUCLEAR REACTIONS Ti(136Te, 136Te'), E=410 MeV; measured reaction products, Eγ, Iγ. 136Te; deduced energy levels, J, π, B(E2) values. Comparison with experimental data and theoretical calculations.

doi: 10.1103/PhysRevLett.118.092503
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2017DO01      Phys.Lett. B 766, 334 (2017)

D.T.Doherty, J.M.Allmond, R.V.F.Janssens, W.Korten, S.Zhu, M.Zielinska, D.C.Radford, A.D.Ayangeakaa, B.Bucher, J.C.Batchelder, C.W.Beausang, C.Campbell, M.P.Carpenter, D.Cline, H.L.Crawford, H.M.David, J.P.Delaroche, C.Dickerson, P.Fallon, A.Galindo-Uribarri, F.G.Kondev, J.L.Harker, A.B.Hayes, M.Hendricks, P.Humby, M.Girod, C.J.Gross, M.Klintefjord, K.Kolos, G.J.Lane, T.Lauritsen, J.Libert, A.O.Macchiavelli, P.J.Napiorkowski, E.Padilla-Rodal, R.C.Pardo, W.Reviol, D.G.Sarantites, G.Savard, D.Seweryniak, J.Srebrny, R.Varner, R.Vondrasek, A.Wiens, E.Wilson, J.L.Wood, C.Y.Wu

Triaxiality near the 110Ru ground state from Coulomb excitation

NUCLEAR REACTIONS 208Pb(110Ru, 110Ru'), E=430 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energy spectrum, B(E2) using GOSIA fit of the experimental data, level scheme, J, π, triaxial deformation. Comparison with available data.

doi: 10.1016/j.physletb.2017.01.031
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2016LI42      Phys.Rev. C 94, 024616 (2016)

J.F.Liang, J.M.Allmond, C.J.Gross, P.E.Mueller, D.Shapira, R.L.Varner, M.Dasgupta, D.J.Hinde, C.Simenel, E.Williams, K.Vo-Phuoc, M.L.Brown, I.P.Carter, M.Evers, D.H.Luong, T.Ebadi, A.Wakhle

Examining the role of transfer coupling in sub-barrier fusion of 46, 50Ti + 124Sn

NUCLEAR REACTIONS 46,50Ti(124Sn, X), E(cm)=120-154 MeV; 124Sn(46Ti, X), (50Ti, X), E(cm)=116-140 MeV; measured evaporation residues (ERs), fusion σ(E) for the 124Sn beam at HRIBF-ORNL facility, and 46,50Ti beams at ANU 14UD tandem accelerator facility. Comparison of experimental reduced σ(E) values and reduced barrier distributions for 40,48Ca+96Zr, 40,48Ca+124Sn, 40,48Ca+132Sn, 46,50Ti+124Sn, 58,64Ni+124Sn 58,64Ni+132Sn and 64Ni+118Sn reactions. Comparison with coupled-channel calculations using CCFULL code.

doi: 10.1103/PhysRevC.94.024616
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2240.


2015AL24      Phys.Rev. C 92, 041303 (2015)

J.M.Allmond, A.E.Stuchbery, A.Galindo-Uribarri, E.Padilla-Rodal, D.C.Radford, J.C.Batchelder, C.R.Bingham, M.E.Howard, J.F.Liang, B.Manning, S.D.Pain, N.J.Stone, R.L.Varner, C.-H.Yu

Investigation into the semimagic nature of the tin isotopes through electromagnetic moments

NUCLEAR REACTIONS C, Ti(112Sn, 112Sn'), (114Sn, 114Sn'), (116Sn, 116Sn'), (118Sn, 118Sn'), (120Sn, 120Sn'), (122Sn, 122Sn'), (124Sn, 124Sn'), E=2.9 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin, (particle)γ(θ), absolute cross sections using CLARION Ge array, BareBall CsI array, and a Bragg curve detector at HRIBF-ORNL. 112,114,116,118,120,122,124Sn; deduced E2 matrix elements, B(E2), quadrupole moments, g-factors for the first 2+ states. Coulomb excitation and GOSIA analysis. Comparison with shell model calculations, and several previous experimental measurements. Systematic differences found between results from the present experiment and a recent experiment using DSAM technique.

doi: 10.1103/PhysRevC.92.041303
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Data from this article have been entered in the XUNDL database. For more information, click here.


2015JO03      Acta Phys.Pol. B46, 537 (2015)

K.L.Jones, S.Ahn, J.M.Allmond, A.Ayres, D.W.Bardayan, T.Baugher, D.Bazin, J.S.Berryman, A.Bey, C.Bingham, L.Cartegni, G.Cerizza, K.Y.Chae, J.A.Cizewski, A.Gade, A.Galindo-Uribarri, R.F.Garcia Ruiz, R.Grzywacz, M.E.Howard, R.L.Kozub, J.F.Liang, B.Manning, M.MatoS, S.McDaniel, D.Miller, C.D.Nesaraja, P.D.O'Malley, S.Padgett, E.Padilla-Rodal, S.D.Pain, S.T.Pittman, D.C.Radford, A.Ratkiewicz, K.T.Schmitt, A.Shore, M.S.Smith, D.W.Stracener, S.R.Stroberg, J.Tostevin, R.L.Varner, D.Weisshaar, K.Wimmer, R.Winkler

Recent Direct Reaction Experimental Studies with Radioactive Tin Beams

doi: 10.5506/APhysPolB.46.537
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2014AL07      Phys.Rev.Lett. 112, 172701 (2014)

J.M.Allmond, E.S.Stuchbery, J.R.Beene, A.Galindo-Uribarri, J.F.Liang, E.Padilla-Rodal, D.C.Radford, R.L.Varner, A.Ayres, J.C.Batchelder, A.Bey, C.R.Bingham, M.E.Howard, K.L.Jones, B.Manning, P.E.Mueller, C.D.Nesaraja, S.D.Pain, W.A.Peters, A.Ratkiewicz, K.T.Schmitt, D.Shapira, M.S.Smith, N.J.Stone, D.W.Stracener, C.-H.Yu

Double-Magic Nature of 132Sn and 208Pb through Lifetime and Cross-Section Measurements

NUCLEAR REACTIONS 9Be(132Sn, 8Be), (208Pb, 8Be), E=3 MeV/nucleon; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced energy levels, J, π, σ, level T1/2, B(M1), spectroscopic factors. Comparison with available data, DWBA calculations.

doi: 10.1103/PhysRevLett.112.172701
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2115. Data from this article have been entered in the XUNDL database. For more information, click here.


2014AL14      Phys.Rev. C 90, 014322 (2014)

J.M.Allmond, A.E.Stuchbery, B.A.Brown, J.R.Beene, A.Galindo-Uribarri, C.J.Gross, J.F.Liang, E.Padilla-Rodal, D.C.Radford, R.L.Varner, A.Ayres, J.C.Batchelder, A.Bey, C.R.Bingham, M.E.Howard, K.L.Jones, B.Manning, P.E.Mueller, C.D.Nesaraja, S.D.Pain, W.A.Peters, A.Ratkiewicz, K.T.Schmitt, D.Shapira, M.S.Smith, N.J.Stone, D.W.Stracener, C.-H.Yu

2π1ν states populated in 135Te from 9Be-induced reactions with a 132Sn beam

NUCLEAR REACTIONS 9Be(132Sn, nα), (132Sn, 2nα), (132Sn, 3nα), E=3 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin using HyBall and CLARION arrays at HRIBF-ORNL facility. 134,135,136Te; deduced levels, J, π. 135Te; deduced σ, spectroscopic factors, DWBA calculations, configurations. Comparison with shell model calculations for 134,135,136Te.

NUCLEAR STRUCTURE 134,135,136Te; calculated levels, J, π, wavefunctions, spectroscopic factors using shell model. Comparison with experimental data.

doi: 10.1103/PhysRevC.90.014322
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2014AL20      Phys.Rev. C 90, 034309 (2014)

J.M.Allmond, B.A.Brown, A.E.Stuchbery, A.Galindo-Uribarri, E.Padilla-Rodal, D.C.Radford, J.C.Batchelder, M.E.Howard, J.F.Liang, B.Manning, R.L.Varner, C.-H.Yu

High-precision B(E2) measurements of semi-magic 58, 60, 62, 64Ni by Coulomb excitation

NUCLEAR REACTIONS C(58Ni, 58Ni'), (60Ni, 60Ni'), (62Ni, 62Ni'), (64Ni, 64Ni'), E=1.8 MeV/nucleon; measured Eγ, Iγ, γγ-, (scattered Ni particle)γ-coin, (carbon recoils)γ(θ) using CLARION array for γ rays and CsI crystals for particles at HRIBF-ORNL facility. Coulomb excitation. 58,60,62,64Ni; deduced E2 matrix elements for first 2+ to 0+ transitions, B(E2). Comparison with large-basis shell-model calculations, and with other experimental results. Systematics of B(E2) values for first 2+ states in N=28 even-A isotones.

doi: 10.1103/PhysRevC.90.034309
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2013KO17      Phys.Rev. C 87, 064612 (2013)

Z.Kohley, J.F.Liang, D.Shapira, C.J.Gross, R.L.Varner, J.M.Allmond, J.J.Kolata, P.E.Mueller, A.Roberts

Sub-barrier fusion enhancement with radioactive 134Te

NUCLEAR REACTIONS 40Ca(134Te, X), [134Te secondary beam from U(p, X) primary reaction], E=535-619 MeV; measured evaporation residue spectra using CSSER system at HRIBF facility, σ(E), time-of-flight, ΔE1-ΔE2 contour plots. Comparison with statistical model using PACE2 computer code. Comparison of σ(E) with those in 40Ca+132Te, 48Ca+132Te, 40Ca+124Te, 48Ca+124Te, 64Ni+130Te, 58Ni+130Te reactions. Positive Q-value neutron transfer (PQNT) channels. Coupled-channel analyses.

doi: 10.1103/PhysRevC.87.064612
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2039.


2012AL13      Phys.Rev. C 86, 031307 (2012)

J.M.Allmond, D.C.Radford, J.Pavan, K.Lagergren, C.Baktash, J.R.Beene, C.R.Bingham, L.Chaturvedi, M.Danchev, D.Fong, A.Galindo-Uribarri, P.A.Hausladen, J.K.Hwang, W.Krolas, J.F.Liang, E.Padilla-Rodal, W.Reviol, D.G.Sarantites, D.Seweryniak, D.Shapira, A.E.Stuchbery, J.P.Urrego-Blanco, R.L.Varner, X.Wang, C.-H.Yu, S.Zhu

One-neutron transfer study of 135Te and 137Xe by particle-γ coincidence spectroscopy: The ν1i13/2 state at N=83

NUCLEAR REACTIONS 13C(134Te, 12C), (134Te, 13C'), (134Te, 14C), E=565 MeV; 9Be(134Te, 8Be), E=565 MeV; 13C(136Xe, 12C), E=560 MeV; 9Be(136Xe, 8Be), E=560 MeV; measured Eγ, Iγ, particle spectra, (particle)γ-, (particle)γγ-coin, (12C)γ(θ) using HyBall and Clarion arrays as HRIBF facility in ORNL for 134Te beam, and Gammasphere + Microball arrays at ATLAS facility in ANL for 136Xe beam. 134,135Te, 137Xe; deduced levels, J, π, σ, multipolarity. Comparison of measured σ with DWBA predictions, i13/2 states. Z=50-70, N=82, 83; systematics of energies of first 3-, 7/2- and 13/2+ states for even Z nuclei.

doi: 10.1103/PhysRevC.86.031307
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2012GR03      Phys.Rev. C 85, 024319 (2012)

C.J.Gross, K.P.Rykaczewski, D.W.Stracener, M.Wolinska-Cichocka, R.L.Varner, D.Miller, C.U.Jost, M.Karny, A.Korgul, S.Liu, M.Madurga

Measuring the absolute decay probability of 82Sr by ion implantation

RADIOACTIVITY 82Sr(EC)[82Sr beam at 215 MeV from a purchased source]; 82Rb(β+), (EC)[from 82Sr(EC)]; measured absolute Iγ for 776.5-keV γ ray in 82Kr using accelerated radioactive beam technique. Comparison with previous evaluated data. Relevance of 82Sr-82Rb generator in PET imaging.

doi: 10.1103/PhysRevC.85.024319
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2012KO18      Phys.Rev. C 85, 054603 (2012)

J.J.Kolata, A.Roberts, A.M.Howard, D.Shapira, J.F.Liang, C.J.Gross, R.L.Varner, Z.Kohley, A.N.Villano, H.Amro, W.Loveland, E.Chavez

Fusion of 124, 132Sn with 40, 48Ca

NUCLEAR REACTIONS 40,48Ca(124Sn, X), (132Sn, X), E(cm)=105-165 MeV; measured evaporation residue spectra, fusion σ(E); deduced reduced fusion σ(E), fusion barriers. Inverse kinematics. Wong model and PACE2 fits. Comparison with time-dependent Hartree-Fock (TDHF) and coupled-channels Born approximation (CCBA) calculations.

doi: 10.1103/PhysRevC.85.054603
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1922.


2012LI16      Phys.Rev. C 85, 031601 (2012)

J.F.Liang, C.J.Gross, Z.Kohley, D.Shapira, R.L.Varner, J.M.Allmond, A.L.Caraley, K.Lagergren, P.E.Mueller

Fusion probability for neutron-rich radioactive-Sn-induced reactions

NUCLEAR REACTIONS 64Ni(124Sn, X), (126Sn, X), (127Sn, X), (128Sn, X), E=560 MeV; 58Ni(132Sn, X), E=670 MeV; measured time of flight, energy loss, evaporation residue cross sections as function of the compound nucleus excitation energy; deduced fusion probability. Comparison with Statistical model calculations.

doi: 10.1103/PhysRevC.85.031601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1908.


2012YA04      Phys.Rev. C 85, 044620 (2012)

R.Yanez, W.Loveland, J.Beckerman, M.Leonard, C.J.Gross, D.Shapira, J.F.Liang, Z.Kohley, R.L.Varner

Search for inverse fission of uranium

NUCLEAR REACTIONS 100Mo(124Sn, X)222U, E=595, 650 MeV; 100Mo (132Sn, X)230U, E=560 MeV; measured Eα, Iα, (ER)α-coin, cross section upper limits; calculated σ(E). 96Zr(124Sn, X), E=200-280 MeV; comparison between measured and predicted σ(E). Statistical model calculations. No evidence for inverse fission.

doi: 10.1103/PhysRevC.85.044620
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1924.


2011KO44      Phys.Rev.Lett. 107, 202701 (2011)

Z.Kohley, J.F.Liang, D.Shapira, R.L.Varner, C.J.Gross, J.M.Allmond, A.L.Caraley, E.A.Coello, F.Favela, K.Lagergren, P.E.Mueller

Near-Barrier Fusion of Sn + Ni and Te + Ni Systems: Examining the Correlation between Nucleon Transfer and Fusion Enhancement

NUCLEAR REACTIONS 58Ni(132Sn, X), E=515 MeV; 58,64Ni(130Te, X), E=670 MeV; measured reaction products; deduced evaporation residue, fission and fusion σ. Comparison with couple channel calculations.

doi: 10.1103/PhysRevLett.107.202701
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1879.


2009LI45      Phys.Lett. B 681, 22 (2009)

J.F.Liang, J.R.Beene, A.L.Caraley, H.Esbensen, A.Galindo-Uribarri, C.J.Gross, P.E.Mueller, K.T.Schmitt, D.Shapira, D.W.Stracener, R.L.Varner

Dynamic polarization in the Coulomb breakup of loosely bound 17F

NUCLEAR REACTIONS 58Ni, 208Pb(17F, p), E=10 MeV/nucleon; measured Ep, Ip, (fragment)p-coin, σ(θ) using silicon strip detectors. Comparison with first-order perturbation and dynamical calculations and effect of dynamic polarization discussed.

doi: 10.1016/j.physletb.2009.09.055
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1803.


2009PA07      Phys.Rev. C 79, 024615 (2009); Erratum Phys.Rev. C 81, 019902 (2010)

D.Y.Pang, P.Roussel-Chomaz, H.Savajols, R.L.Varner, R.Wolski

Global optical model potential for A = 3 projectiles

NUCLEAR REACTIONS 6Li, 27Al, 28Si, 32S, 46Ti, 48Ti, 56Fe, 68Zn(t, t), E=17 MeV; 9Be, 60Ni, 140Ce(t, t), E=15, 17 MeV; 12C(t, t), E=15, 17, 20, 33, 36, 38 MeV; 13C(t, t), E=38 MeV; 14C(t, t), E=71.7 MeV; 16O(t, t), E=33, 36 MeV; 19F, 48Ca, 51V, 89Y(t, t), E=33 MeV; 20Ne, 22Ne(t, t), E=33.4 MeV; 24Mg(t, t), E=15, 33.4 MeV; 26Mg, 30Si(t, t), E=17, 36 MeV; 40Ca(t, t), E=17, 20, 33 MeV; 52Cr, 62Ni(t, t), E=15, 20 MeV; 58Ni, 232Th(t, t), E=17, 33 MeV; 64Ni(t, t), E=20 MeV; 82Se, 86Sr, 87Rb(t, t), E=15 MeV; 90Zr(t, t), E=15, 17, 20 MeV; 94Zr, 116Sn(t, t), E=17, 20 MeV; 96Zr, 118Sn, 122Sn, 124Sn, 182W, 207Pb(t, t), E=20 MeV; 208Pb(t, t), E=20, 33 MeV; 6Li(3He, 3He), E=8-217 MeV; 9Be(3He, 3He), E=4-217 MeV; 12C(3He, 3He), E=11-217 MeV; 13C(3He, 3He), E=450 MeV; 24Mg(3He, 3He), E=12-130 MeV; 27Al(3He, 3He), E=5.5-118.5 MeV; 28Si(3He, 3He), E=450 MeV; 40Ca(3He, 3He), E=8.5-130, 31.0-217, 450 MeV; 58Ni(3He, 3He), E=12-217, 450 MeV; 64Ni(3He, 3He), E=21-118.5 MeV; 90Zr(3He, 3He), E=12-217, 450 MeV; 116Sn(3He, 3He), E=18-109.2 MeV; 120Sn(3He, 3He), E=130 MeV; 208Pb(3He, 3He), E=33.3-217, 450 MeV; analyzed σ(θ) using global optical model potential GDP08; deduced set of global optical potential parameters.

doi: 10.1103/PhysRevC.79.024615
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2008LI48      Phys.Rev. C 78, 047601 (2008)

J.F.Liang, D.Shapira, C.J.Gross, R.L.Varner, J.R.Beene, P.E.Mueller, D.W.Stracener

Fusion of radioactive 132Sn with 64Ni at sub-barrier energies

NUCLEAR REACTIONS 64Ni(132Sn, x), E=465 MeV; measured particle spectra, evaporation residues, σ. Comparison with coupled-channel and time-dependent Hartree-Fock calculations. Reanalyzed data at E=453 MeV.

doi: 10.1103/PhysRevC.78.047601
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2008VI08      Phys.Rev. C 78, 054608 (2008)

A.M.Vinodkumar, W.Loveland, J.J.Neeway, L.Prisbrey, P.H.Sprunger, D.Peterson, J.F.Liang, D.Shapira, C.J.Gross, R.L.Varner, J.J.Kolata, A.Roberts, A.L.Caraley

132Sn+96Zr reaction: A study of fusion enhancement/hindrance

NUCLEAR REACTIONS 96Zr(124Sn, X), E(cm)=600 MeV; 96Zr(132Sn, X), E(cm)=192.8-249.1 MeV; calculated σ. Comparison with coupled channels calculations.

doi: 10.1103/PhysRevC.78.054608
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1795.


2007LI27      Phys.Rev. C 75, 054607 (2007)

J.F.Liang, D.Shapira, J.R.Beene, C.J.Gross, R.L.Varner, A.Galindo-Uribarri, J.Gomez del Campo, P.A.Hausladen, P.E.Mueller, D.W.Stracener, H.Amro, J.J.Kolata, J.D.Bierman, A.L.Caraley, K.L.Jones, Y.Larochelle, W.Loveland, D.Peterson

Fusion of radioactive 132Sn with 64Ni

NUCLEAR REACTIONS 64Ni(132Sn, X), E=453-620 MeV; measured cross sections and angular distributions. Compared results to statistical model calculations.

doi: 10.1103/PhysRevC.75.054607
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1572.


2007LI82      Eur.Phys.J. Special Topics 150, 35 (2007)

J.F.Liang, D.Shapira, C.J.Gross, R.L.Varner, H.Amro, J.R.Beene, J.D.Bierman, A.L.Caraley, A.Galindo-Uribarri, J.Gomez del Campo, P.A.Hausladen, K.L.Jones, J.J.Kolata, Y.Larochelle, W.Loveland, P.E.Mueller, D.Peterson, D.C.Radford, D.W.Stracener

Measurements of fusion reactions induced by radioactive 132Sn on 64Ni

NUCLEAR REACTIONS 132Sn(64Ni, X), E(cm) < 220 MeV; measured evaporation residue and fission cross sections. Compared results to model calculations.

doi: 10.1140/epjst/e2007-00259-7
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2006HA62      Int.J. Mass Spectrom. 251, 119 (2006)

P.A.Hausladen, J.R.Beene, A.Galindo-Uribarri, Y.Larochelle, J.F.Liang, P.E.Mueller, D.Shapira, D.W.Stracener, J.Thomas, R.L.Varner, H.Wollnik

Opportunistic mass measurements at the Holifield Radioactive Ion Beam Facility

ATOMIC MASSES 77,78,79Cu, 83,84,85,86Ge; measured mass excesses. Isotopes produced from 238U(p, F) reaction at beam energy 42 MeV using ISOL method. Proposed technique for measuring mass differences developed at the Holifield Radioactive Ion Beam Facility (HRIBF).

doi: 10.1016/j.ijms.2006.01.020
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2006VI10      Phys.Rev.C 74, 064612 (2006)

A.M.Vinodkumar, W.Loveland, P.H.Sprunger, D.Peterson, J.F.Liang, D.Shapira, R.L.Varner, C.J.Gross, J.J.Kolata

Capture cross sections for the near symmetric 124Sn+96Zr reaction

NUCLEAR REACTIONS 96Zr(124Sn, X), E(cm)=195-265 MeV; measured capture-fission σ. Comparison with model predictions.

doi: 10.1103/PhysRevC.74.064612
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1795.


2005HE08      Nucl.Phys. A750, 175 (2005)

P.Heckman, B.B.Back, T.Baumann, M.P.Carpenter, I.Dioszegi, D.J.Hofman, T.L.Khoo, S.Mitsuoka, V.Nanal, T.Pennington, J.P.Seitz, M.Thoennessen, E.Tryggestad, R.L.Varner

Temperature and spin dependence of the giant dipole resonance width

NUCLEAR REACTIONS 100Mo(17O, xnyp), E=78.8 MeV; 100Mo(18O, xnyp), E=95.0 MeV; measured Eγ, Iγ, (evaporation residue)γ-coin. 117,118Sn deduced GDR widths, temperature and spin dependence features. Comparison with model predictions.

doi: 10.1016/j.nuclphysa.2004.12.065
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2005LI55      Eur.Phys.J. A 25, Supplement 1, 239 (2005)

J.F.Liang, D.Shapira, C.J.Gross, R.L.Varner, H.Amro, J.R.Beene, J.D.Bierman, A.L.Caraley, A.Galindo-Uribarri, J.Gomez del Campo, P.A.Hausladen, K.L.Jones, J.J.Kolata, Y.Larochelle, W.Loveland, P.E.Mueller, D.Peterson, D.C.Radford, D.W.Stracener

Sub-barrier fusion induced by neutron-rich radioactive 132Sn

NUCLEAR REACTIONS 64Ni(132Sn, X), E=560 MeV; measured fission fragments and evaporation residues spectra, yields.

doi: 10.1140/epjad/i2005-06-117-x
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2005PA23      Phys.Rev.Lett. 94, 122501 (2005)

E.Padilla-Rodal, A.Galindo-Uribarri, C.Baktash, J.C.Batchelder, J.R.Beene, R.Bijker, B.A.Brown, O.Castanos, B.Fuentes, J.Gomez del Campo, P.A.Hausladen, Y.Larochelle, A.F.Lisetskiy, P.E.Mueller, D.C.Radford, D.W.Stracener, J.P.Urrego, R.L.Varner, C.-H.Yu

B(E2)↑ Measurements for Radioactive Neutron-Rich Ge Isotopes: Reaching the N=50 Closed Shell

NUCLEAR REACTIONS C(78Ge, 78Ge'), (80Ge, 80Ge'), E=2.24 MeV/nucleon; 48Ti(82Ge, 82Ge'), E=220 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 78,80,82Ge deduced excitation B(E2). Systematic trends in B(E2) values discussed.

doi: 10.1103/PhysRevLett.94.122501
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2005RA09      Nucl.Phys. A752, 264c (2005)

D.C.Radford, C.Baktash, C.J.Barton, J.Batchelder, J.R.Beene, C.R.Bingham, M.A.Caprio, M.Danchev, B.Fuentes, A.Galindo-Uribarri, J.Gomez del Campo, C.J.Gross, M.L.Halbert, D.J.Hartley, P.Hausladen, J.K.Hwang, W.Krolas, Y.Larochelle, J.F.Liang, P.E.Mueller, E.Padilla, J.Pavan, A.Piechaczek, D.Shapira, D.W.Stracener, R.L.Varner, A.Woehr, C.-H.Yu, N.V.Zamfir

Coulomb excitation and transfer reactions with rare neutron-rich isotopes

NUCLEAR REACTIONS C(126Sn, 126Sn'), (128Sn, 128Sn'), (130Sn, 130Sn'), (132Sn, 132Sn'), (134Sn, 134Sn'), (132Te, 132Te'), (134Te, 134Te'), (136Te, 136Te'), E not given; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 126,128,130,132,134Sn, 132,134,136Te deduced transitions B(E2). 9Be(134Te, 8Be), 13C(134Te, 12C), E not given; measured Eγ, Iγ, γγ-, (particle)γ-coin. 135Te deduced level. Clarion, Hyball arrays.

doi: 10.1016/j.nuclphysa.2005.02.040
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2005RA32      Eur.Phys.J. A 25, Supplement 1, 383 (2005)

D.C.Radford, C.Baktash, C.J.Barton, J.Batchelder, J.R.Beene, C.R.Bingham, M.A.Caprio, M.Danchev, B.Fuentes, A.Galindo-Uribarri, J.Gomez del Campo, C.J.Gross, M.L.Halbert, D.J.Hartley, P.Hausladen, J.K.Hwang, W.Krolas, Y.Larochelle, J.F.Liang, P.E.Mueller, E.Padilla, J.Pavan, A.Piechaczek, D.Shapira, D.W.Stracener, R.L.Varner, A.Woehr, C.-H.Yu, N.V.Zamfir

Coulomb excitation and transfer reactions with neutron-rich radioactive beams

NUCLEAR REACTIONS C(126Sn, 126Sn'), (128Sn, 128Sn'), (130Sn, 130Sn'), (132Te, 132Te'), (134Te, 134Te'), (136Te, 136Te'), E not given; measured Eγ, Iγ, γγ-, (particle)γ-coin following projectile Coulomb excitation. 132,134,136Te, 126,128,130Sn deduced excitation B(E2). 9Be(134Te, 8Be), 13C(134Te, 12C), E=4.3 MeV/nucleon; measured Eγ, Iγ, γγ-coin, (particle)γ-coin; deduced single-neutron transfer σ(E). 135Te deduced levels J, π.

doi: 10.1140/epjad/i2005-06-205-y
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2005SE03      Nucl.Phys. A750, 245 (2005)

J.P.Seitz, B.B.Back, M.P.Carpenter, I.Dioszegi, K.Eisenman, P.Heckman, D.J.Hofman, M.P.Kelly, T.L.Khoo, S.Mitsuoka, V.Nanal, T.Pennington, R.H.Siemssen, M.Thoennessen, R.L.Varner

Observation of the hot GDR in neutron-deficient thorium evaporation residues

NUCLEAR REACTIONS 176Yb(48Ca, X), E=206, 219, 256, 259 MeV; measured Eγ, Iγ, (evaporation residue)γ-coin, γ-ray multiplicity and sum energy, fusion and evaporation residue σ. 224Th deduced GDR parameters. Comparison with model predictions.

doi: 10.1016/j.nuclphysa.2005.01.015
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2005SH44      Nucl.Instrum.Methods Phys.Res. A551, 330 (2005)

D.Shapira, J.F.Liang, C.J.Gross, R.L.Varner, H.Amro, C.Harlin, J.J.Kolata, S.Novotny

A high-efficiency compact setup to study evaporation residues formed in reactions induced by low-intensity radioactive ion beams

NUCLEAR REACTIONS 64Ni(134Sn, X), E(cm) ≈ 150-163 MeV; measured evaporation residue σ.

doi: 10.1016/j.nima.2005.05.079
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2005SH54      Eur.Phys.J. A 25, Supplement 1, 241 (2005)

D.Shapira, J.F.Liang, C.J.Gross, R.L.Varner, J.R.Beene, A.Galindo-Uribarri, J.Gomez Del Campo, P.E.Mueller, D.W.Stracener, P.A.Hausladen, C.Harlin, J.J.Kolata, H.Amro, W.Loveland, K.L.Jones, J.D.Bierman, A.L.Caraley

Measurement of evaporation residue cross sections from reactions with radioactive neutron-rich beams

NUCLEAR REACTIONS 64Ni(132Sn, X), (124Sn, X), (134Te, X), E not given; measured evaporation residue σ.

doi: 10.1140/epjad/i2005-06-190-1
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2005VA31      Eur.Phys.J. A 25, Supplement 1, 391 (2005)

R.L.Varner, J.R.Beene, C.Baktash, A.Galindo-Uribarri, C.J.Gross, J.Gomez del Campo, M.L.Halbert, P.A.Hausladen, Y.Larochelle, J.F.Liang, J.Mas, P.E.Mueller, E.Padilla-Rodal, D.C.Radford, D.Shapira, D.W.Stracener, J.-P.Urrego-Blanco, C.-H.Yu

Coulomb excitation measurements of transition strengths in the isotopes 132, 134Sn

NUCLEAR REACTIONS 48Ti(132Sn, 132Sn'), E=470-495 MeV; 90Zr(134Sn, 134Sn'), E=400 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 132,134Sn deduced transitions B(E2).

doi: 10.1140/epjad/i2005-06-128-7
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2004BE56      Nucl.Phys. A746, 471c (2004)

J.R.Beene, R.L.Varner, C.Baktash, A.Galindo-Uribarri, C.J.Gross, J.Gomez del Campo, M.L.Halbert, P.A.Hausladen, Y.Larochelle, J.F.Liang, J.Mas, P.E.Mueller, E.Padilla-Rodal, D.C.Radford, D.Shapira, D.W.Stracener, J.-P.Urrego-Blanco, C.-H.Yu

Coulomb excitation studies of 132, 134Sn

NUCLEAR REACTIONS 48Ti(132Sn, 132Sn'), E=470, 495 MeV; 90Zr(134Sn, 134Sn'), E=400 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 132,134Sn levels deduced excitation B(E2).

doi: 10.1016/j.nuclphysa.2004.09.143
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2004LI55      Prog.Theor.Phys.(Kyoto), Suppl. 154, 106 (2004)

J.F.Liang, D.Shapira, C.J.Gross, J.R.Beene, J.D.Bierman, A.Galindo-Uribarri, J.Gomez del Campo, P.A.Hausladen, Y.Larochelle, W.Loveland, P.E.Mueller, D.Peterson, D.C.Radford, D.W.Stracener, R.L.Varner

Sub-Barrier Fusion Enhancement in Neutron-Rich Radioactive 132Sn on 64Ni

NUCLEAR REACTIONS 64Ni(132Sn, X), E(cm)=140-200 MeV; measured evaporation residue excitation function; deduced sub-barrier fusion enhancement.

doi: 10.1143/PTPS.154.106
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2004LI71      Nucl.Phys. A746, 103c (2004)

J.F.Liang, D.Shapira, C.J.Gross, J.R.Beene, J.D.Bierman, A.Galindo-Uribarri, J.Gomez del Campo, P.A.Hausladen, Y.Larochelle, W.Loveland, P.E.Mueller, D.Peterson, D.C.Radford, D.W.Stracener, R.L.Varner

Enhanced evaporation residue cross sections in neutron-rich radioactive 132Sn on 64Ni

NUCLEAR REACTIONS 64Ni(132Sn, X), (124Sn, X), E(cm) ≈ 150-200 MeV; measured evaporation residue σ; deduced sub-barrier fusion enhancement for heavier beam. Comparison with previous results, model predictions.

doi: 10.1016/j.nuclphysa.2004.09.057
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1481.


2004NA03      Nucl.Phys. A731, 153 (2004)

V.Nanal, T.L.Khoo, D.J.Hofman, B.B.Back, M.P.Carpenter, I.Dioszegi, K.Eisenman, M.L.Halbert, P.Heckman, A.M.Heinz, D.Henderson, D.Jenkins, M.P.Kelly, F.G.Kondev, T.Lauritsen, C.J.Lister, B.McClintock, S.Mitsuoka, T.Pennington, J.Seitz, R.H.Siemssen, M.Thoennessen, R.J.van Swol, R.L.Varner, P.Wilt, Y.Alhassid

Highly Selective Studies of GDR in 164Er

NUCLEAR REACTIONS 124Sn(40Ar, xn), E=163, 187 MeV; measured Eγ, Iγ, (recoil)γ-coin. 164Er deduced GDR parameters, angular momentum dependence of strength function.

doi: 10.1016/j.nuclphysa.2003.11.028
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2004RA27      Nucl.Phys. A746, 83c (2004)

D.C.Radford, C.Baktash, J.R.Beene, B.Fuentes, A.Galindo-Uribarri, J.Gomez del Campo, C.J.Gross, M.L.Halbert, Y.Larochelle, T.A.Lewis, J.F.Liang, J.Mas, P.E.Mueller, E.Padilla, D.Shapira, D.W.Stracener, R.L.Varner, C.-H.Yu, C.J.Barton, M.A.Caprio, D.J.Hartley, N.V.Zamfir

Nuclear structure studies with heavy neutron-rich RIBS at the HRIBF

NUCLEAR REACTIONS C(126Sn, 126Sn'), (128Sn, 128Sn'), (130Sn, 130Sn'), (132Sn, 132Sn'), (134Sn, 134Sn'), (132Te, 132Te'), (134Te, 134Te'), (136Te, 136Te'), E < 3 MeV/nucleon; measured Eγ, Iγ, (recoil)γ-coin following projectile Coulomb excitation. 126,128,130,132,134Sn, 132,134,136Te deduced excitation B(E2). 9Be(134Te, 8Be), 13C(134Te, 12C), E ≈ 4 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin.

doi: 10.1016/j.nuclphysa.2004.09.056
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2004SH28      Phys.Lett. B 596, 54 (2004)

A.Shrivastava, Y.Blumenfeld, N.Keeley, T.Zerguerras, T.Aumann, D.Bazin, M.Chromik, G.M.Crawley, T.Glasmacher, K.W.Kemper, F.Marechal, D.J.Morrissey, T.Nakamura, A.Navin, E.C.Pollacco, D.Santonocito, B.M.Sherrill, T.Suomijarvi, M.Thoennessen, E.Tryggestad, R.L.Varner

11Be continuum studied through proton scattering

NUCLEAR REACTIONS 1H(11Be, 11Be), (11Be, 11Be'), E=63.7 MeV/nucleon; measured excitation energy spectra, σ(θ). 11Be deduced levels, J, π, configurations.

doi: 10.1016/j.physletb.2004.06.070
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1172.


2003CA14      Phys.Lett. B 560, 155 (2003)

F.Camera, A.Bracco, V.Nanal, M.P.Carpenter, F.Della Vedova, S.Leoni, B.Million, S.Mantovani, M.Pignanelli, O.Wieland, B.B.Back, A.M.Heinz, R.V.F.Janssens, D.Jenkins, T.L.Khoo, F.G.Kondev, T.Lauritsen, C.J.Lister, B.McClintock, S.Mitsuoka, E.F.Moore, D.Seweryniak, R.H.Siemssen, R.J.Van Swol, D.Hofman, M.Thoennessen, K.Eisenman, P.Heckman, J.Seitz, R.Varner, M.Halbert, I.Dioszegi, A.Lopez-Martens

Radiative fusion from very symmetric reactions: the giant dipole resonance in the 179Au nucleus

NUCLEAR REACTIONS 89Y(90Zr, γ), (90Zr, xnyp), E=352 MeV; measured Eγ, Iγ, (recoil)γ-coin for 0-, 1-, and 2-nucleon evaporation; deduced statistical emission. 179Au deduced excited GDR width. BaF2 detectors, recoil separator.

doi: 10.1016/S0370-2693(03)00403-9
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2003HE03      Phys.Lett. B 555, 43 (2003)

P.Heckman, D.Bazin, J.R.Beene, Y.Blumenfeld, M.J.Chromik, M.L.Halbert, J.F.Liang, E.Mohrmann, T.Nakamura, A.Navin, B.M.Sherrill, K.A.Snover, M.Thoennessen, E.Tryggestad, R.L.Varner

Low-temperature measurement of the giant dipole resonance width

NUCLEAR REACTIONS 120Sn(17O, 17O'), E=80 MeV/nucleon; measured particle spectra, Eγ, Iγ, (particle)γ-coin. 120Sn deduced width of GDR built on excited states, influence of thermal shape fluctuations. Comparison with model predictions.

doi: 10.1016/S0370-2693(03)00017-0
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2003LI14      Phys.Rev. C 67, 044603 (2003)

J.F.Liang, J.R.Beene, A.Galindo-Uribarri, J.Gomez del Campo, C.J.Gross, P.A.Hausladen, P.E.Mueller, D.Shapira, D.W.Stracener, R.L.Varner, J.D.Bierman, H.Esbensen, Y.Larochelle

Breakup of 17F on 208Pb near the Coulomb barrier

NUCLEAR REACTIONS 208Pb(17F, 16OX), E=98, 120 MeV; measured oxygen particles σ(θ); deduced reaction mechanism features. 208Pb(17F, 17F), E=98, 120 MeV; measured σ(θ). 208Pb(17F, X), E(cm) ≈ 70-120 MeV; calculated fusion σ.

doi: 10.1103/PhysRevC.67.044603
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2003LI41      Phys.Rev.Lett. 91, 152701 (2003); Erratum Phys.Rev.Lett. 96, 029903 (2006)

J.F.Liang, D.Shapira, C.J.Gross, J.R.Beene, J.D.Bierman, A.Galindo-Uribarri, J.Gomez del Campo, P.A.Hausladen, Y.Larochelle, W.Loveland, P.E.Mueller, D.Peterson, D.C.Radford, D.W.Stracener, R.L.Varner

Enhanced Fusion-Evaporation Cross Sections in Neutron-Rich 132Sn on 64Ni

NUCLEAR REACTIONS 64Ni(132Sn, X), E=453-560 MeV; measured fusion-evaporation excitation function; deduced sub-barrier enhancement, role of multinucleon transfer. Coupled channels calculation.

doi: 10.1103/PhysRevLett.91.152701
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2003SC18      Yad.Fiz. 66, 1199 (2003); Phys.Atomic Nuclei 66, 1163 (2003)

R.P.Schmitt, T.Botting, G.G.Chubarian, K.L.Wolf, B.J.Hurst, H.Jabs, M.Hamelin, A.Bacak, Yu.Ts.Oganessian, M.G.Itkis, E.M.Kozulin, N.A.Kondratiev, V.S.Salamatin, I.V.Pokrovsky, F.Hanappe, E.de Goes Brennand, A.Huck, L.Stuttge, E.Liatard, J.Beene, R.Varner, M.Halbert, N.Gan

Probing Fission Time Scales with Neutrons and GDR Gamma Rays

NUCLEAR REACTIONS 176Yb, 208Pb(16O, F), E=133 MeV; 188Os, 209Bi(α, F), E=104 MeV; measured En, pre-fission neutron multiplicities, GDR associated Eγ, Ig; deduced friction coefficients, fission time scales.

doi: 10.1134/1.1586431
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2003TR05      Phys.Rev. C 67, 064309 (2003)

E.Tryggestad, T.Baumann, P.Heckman, M.Thoennessen, T.Aumann, D.Bazin, Y.Blumenfeld, J.R.Beene, T.A.Lewis, D.C.Radford, D.Shapira, R.L.Varner, M.Chartier, M.L.Halbert, J.F.Liang

Low-lying E1 strength in 20O

NUCLEAR REACTIONS 208Pb(18O, 18O'), (20O, 20O'), E=100 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 18,20O deduced levels, J, π, B(E1). Comparison with model predictions.

doi: 10.1103/PhysRevC.67.064309
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2002LI34      Phys.Rev. C65, 051603 (2002)

J.F.Liang, J.R.Beene, H.Esbensen, A.Galindo-Uribarri, J.Gomez del Campo, C.J.Gross, M.L.Halbert, P.E.Mueller, D.Shapira, D.W.Stracener, I.J.Thompson, R.L.Varner

Elastic Scattering and Breakup of 17F at 10 MeV/nucleon

NUCLEAR REACTIONS 208Pb(17F, 17F), (17F, 16O), E=170 MeV; measured σ(θ); deduced reaction mechanism features. Comparison with optical model predictions.

doi: 10.1103/PhysRevC.65.051603
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2002TR11      Phys.Lett. 541B, 52 (2002)

E.Tryggestad, T.Aumann, T.Baumann, D.Bazin, J.R.Beene, Y.Blumenfeld, B.A.Brown, M.Chartier, M.L.Halbert, P.Heckman, J.F.Liang, D.C.Radford, D.Shapira, M.Thoennessen, R.L.Varner

Low-Lying Dipole Strength in 20O

NUCLEAR REACTIONS 208Pb(18O, 18O'), (20O, 20O'), E=100 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 18,20O deduced levels, J, π, excitation B(E1), B(E2). Comparison with shell model predictions.

doi: 10.1016/S0370-2693(02)02224-4
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2001BR17      Nucl.Phys. A688, 659 (2001)

M.E.Brandan, A.Menchaca-Rocha, L.Trache, H.L.Clark, A.Azhari, C.A.Gagliardi, Y.-W.Lui, R.E.Tribble, R.L.Varner, J.R.Beene, G.R.Satchler

Refractive Elastic Scattering of 16O by 12C at 300 MeV

NUCLEAR REACTIONS 12C(16O, 16O), (16O, 12C), E=300 MeV; measured σ(θ); deduced optical model parameters, potential characteristics. Airy structure, nuclear rainbow.

doi: 10.1016/S0375-9474(00)00588-1
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2001CH46      Phys.Lett. 510B, 24 (2001)

M.Chartier, J.R.Beene, B.Blank, L.Chen, A.Galonsky, N.Gan, K.Govaert, P.G.Hansen, J.Kruse, V.Maddalena, M.Thoennessen, R.L.Varner

Identification of the 10Li Ground State

NUCLEAR REACTIONS 9Be(11Be, X)8Li/9Li/10Be, E=46 MeV/nucleon; measured Eγ, Iγ, (fragment)γ-coin. 10Li deduced ground-state configuration.

doi: 10.1016/S0370-2693(01)00602-5
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2001GA18      Nucl.Phys. A682, 363c (2001)

A.Galindo-Uribarri, J.Gomez del Campo, J.R.Beene, C.J.Gross, M.L.Halbert, J.F.Liang, S.D.Paul, D.Shapira, D.W.Stracener, R.L.Varner, E.Chavez, M.E.Ortiz

Study of Resonant Reactions with Radioactive Ion Beams and Observation of Simultaneous 2p Emission

NUCLEAR REACTIONS 1H(17F, pX), E=44 MeV; measured proton spectra, pp-coin, angular correlations, excitation functions. 18Ne deduced two-proton emitting state.

doi: 10.1016/S0375-9474(00)00661-8
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2001GO01      Phys.Rev.Lett. 86, 43 (2001)

J.Gomez del Campo, A.Galindo-Uribarri, J.R.Beene, C.J.Gross, J.F.Liang, M.L.Halbert, D.W.Stracener, D.Shapira, R.L.Varner, E.Chavez-Lomeli, M.E.Oritz

Decay of a Resonance in 18Ne by the Simultaneous Emission of Two Protons

NUCLEAR REACTIONS 1H(17F, p), (17F, 2p), E=33, 44 MeV; measured proton spectra, pp-coin, angular correlations, excitation functions. 18Ne level deduced simultaneous two proton decay, resonance partial and total widths. Various decay mechanisms discussed.

doi: 10.1103/PhysRevLett.86.43
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2001HE17      Nucl.Phys. A687, 225c (2001)

P.Heckman, D.Bazin, J.R.Beene, Y.Blumenfeld, M.J.Chromik, M.L.Halbert, J.F.Liang, E.Mohrmann, T.Nakamura, A.Navin, B.M.Sherrill, K.A.Snover, M.Thoennessen, E.Tryggestad, R.L.Varner

Temperature Dependence of the GDR Width in 120Sn

NUCLEAR REACTIONS 120Sn(17O, 17O'), E=80 MeV/nucleon; measured Eγ, (recoil)γ-coin, excitation energy spectra, preliminary GDR parameters. Comparison with α-induced reaction data.

doi: 10.1016/S0375-9474(01)00625-X
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2001TR10      Nucl.Phys. A687, 231c (2001)

E.Tryggestad, T.Aumann, D.Bazin, J.R.Beene, Y.Blumenfeld, M.Chartier, M.L.Halbert, P.Heckman, J.F.Liang, D.C.Radford, D.Shapira, B.M.Sherrill, M.Thoennessen, R.L.Varner

Dipole Strength Function in 20O

NUCLEAR REACTIONS 208Pb(20O, 20O'), E=100 MeV/nucleon; measured Eγ, (recoil)γ-coin following projectile Coulomb excitation. 20O deduced transitions.

doi: 10.1016/S0375-9474(01)00626-1
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2001VA18      Nucl.Phys. A687, 140c (2001)

R.L.Varner, J.R.Beene, M.Chartier, J.F.Liang, D.Shapira, D.Bazin, B.Blank, B.Sherrill, M.Thoennessen, P.A.DeYoung, G.F.Peaslee

Excitation of the Isovector Giant Quadrupole Resonance in 208Pb by Coulomb Inelastic Scattering

NUCLEAR REACTIONS 90Zr, 208Pb(17O, 17O'), (36Ar, 36Ar'), E=150 MeV/nucleon; measured inelastic scattering σ, inelastic excitation yield, isovector giant quadrupole resonance, GDR features.

doi: 10.1016/S0375-9474(01)00613-3
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2000GA50      Nucl.Instrum.Methods Phys.Res. B172, 647 (2000)

A.Galindo-Uribarri, J.Gomez del Campo, J.R.Beene, C.J.Gross, J.F.Liang, S.D.Paul, D.Shapira, D.W.Stracener, R.L.Varner, E.Chavez, A.Huerta, M.E.Oritz, E.Padilla, S.Pascual

Study of Resonant Reactions with Radioactive Ion Beams

NUCLEAR REACTIONS 1H(17O, p), E=14, 20, 33 MeV; 1H(17F, p), E=33 MeV; measured recoil proton spectra, σ(E, θ); deduced resonance features. Thick targets.

doi: 10.1016/S0168-583X(00)00220-2
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2000LI38      Phys.Lett. 491B, 23 (2000)

J.F.Liang, J.R.Beene, H.Esbensen, A.Galindo-Uribarri, J.Gomez del Campo, C.J.Gross, M.L.Halbert, P.E.Mueller, D.Shapira, D.W.Stracener, R.L.Varner

Breakup of Weakly Bound 17F Well Above the Coulomb Barrier

NUCLEAR REACTIONS 208Pb(17F, p16O), E=170 MeV; measured σ, fragments angular correlations, proton spectra; deduced breakup mechanism. Comparison with model predictions.

doi: 10.1016/S0370-2693(00)01016-9
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2000SH11      Phys.Rev. C61, 044612 (2000)

N.P.Shaw, I.Dioszegi, I.Mazumdar, A.Buda, C.R.Morton, J.Velkovska, J.R.Beene, D.W.Stracener, R.L.Varner, M.Thoennessen, P.Paul

Nuclear Viscosity of Hot Rotating 240Cf

NUCLEAR REACTIONS 208Pb(32S, X), E=180-285 MeV; measured total fusion σ, Eγ, Iγ, fragment mass distributions following compound nucleus fission. 240Cf deduced dissipation coefficient, temperature and deformation effects. Statistical model calculations.

doi: 10.1103/PhysRevC.61.044612
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1999LI32      Nucl.Instrum.Methods Phys.Res. A435, 393 (1999)

J.F.Liang, D.Shapira, J.R.Beene, J.D.Bierman, A.Galindo-Uribarri, J.Gomez del Campo, C.J.Gross, M.L.Halbert, T.J.Harding, A.I.D.Macnab, S.P.McNeal, R.L.Varner, K.Zhao

Detection of Fusion Residues Produced by Inverse Kinematic Reactions using a Gas-Filled Split-Pole Spectrograph

NUCLEAR REACTIONS 197Au(70Ge, 70Ge), E=250 MeV; measured charge state distribution. 50Ti(75As, X), E=242, 265 MeV; measured evaporation residues energy, σ(θ). Gas-filled spectrograph, position sensitive detector.

doi: 10.1016/S0168-9002(99)00660-9
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1998BA37      Nucl.Phys. A635, 428 (1998)

T.Baumann, E.Ramakrishnan, A.Azhari, J.R.Beene, R.J.Charity, J.F.Dempsey, M.L.Halbert, P.-F.Hua, R.A.Kryger, P.E.Mueller, R.Pfaff, D.G.Sarantites, L.G.Sobotka, D.W.Stracener, M.Thoennessen, G.Van Buren, R.L.Varner, S.Yokoyama

Evolution of the Giant Dipole Resonance in Excited 120Sn and 208Pb Nuclei Populated by Inelastic Alpha Scattering

NUCLEAR REACTIONS 120Sn(α, α'), E=40, 50 MeV/nucleon; 208Pb(α, α'), E=40 MeV/nucleon; measured Eγ, Iγ, Eα, Iα, αγ-coin. 120Sn, 208Pb deduced GDR width vs temperature, shape effects. Adiabatic coupling model.

doi: 10.1016/S0375-9474(98)00197-3
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1997MO30      J.Phys.(London) G23, 1383 (1997)

C.R.Morton, A.Buda, P.Paul, N.P.Shaw, J.R.Beene, N.Gan, M.L.Halbert, D.W.Stracener, R.L.Varner, M.Thoennessen, P.Thirolf, I.Dioszegi

Fission Dynamics using the Decay of the Giant Dipole Resonance

NUCLEAR REACTIONS W, 208Pb(32S, F), E=180-245 MeV; measured Eγ, Iγ, fission(fragment)γ(θ); deduced GDR channel effects. Modified CASCADE calculations.

doi: 10.1088/0954-3899/23/10/028
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1996RA15      Nucl.Phys. A599, 49c (1996)

E.Ramakrishnan, T.Baumann, A.Azhari, R.A.Kryger, R.Pfaff, M.Thoennessen, S.Yokoyama, J.R.Beene, M.L.Halbert, P.E.Mueller, D.W.Stracener, R.L.Varner, G.Van Buren, R.J.Charity, J.F.Dempsey, P.-F.Hua, D.G.Sarantites, L.G.Sobotka

Giant Dipole Resonance in Excited 120Sn and 208Pb Nuclei Populated by Inelastic Alpha Scattering

NUCLEAR REACTIONS 120Sn(α, α'), (α, X), E=40, 50 MeV/nucleon; 208Pb(α, α'), (α, X), E=40 MeV/nucleon; measured αγ-coin. 120Sn, 208Pb deduced GDR width vs excitation.

doi: 10.1016/0375-9474(96)00046-2
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1996RA20      Phys.Rev.Lett. 76, 2025 (1996)

E.Ramakrishnan, T.Baumann, A.Azhari, R.A.Kryger, R.Pfaff, M.Thoennessen, S.Yokoyama, J.R.Beene, M.L.Halbert, P.E.Mueller, D.W.Stracener, R.L.Varner, R.J.Charity, J.F.Dempsey, D.G.Sarantites, L.G.Sobotka

Giant Dipole Resonance Built on Highly Excited States of 120Sn Nuclei Populated by Inelastic α Scattering

NUCLEAR REACTIONS 120Sn(α, α'), E=40, 50 MeV/nucleon; measured γα-coin. 120Sn deduced GDR built on highly excited states, width.

doi: 10.1103/PhysRevLett.76.2025
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1996RA36      Phys.Lett. 383B, 252 (1996)

E.Ramakrishnan, A.Azhari, J.R.Beene, R.J.Charity, M.L.Halbert, P.-F.Hua, R.A.Kryger, P.E.Mueller, R.Pfaff, D.G.Sarantites, L.G.Sobotka, M.Thoennessen, G.Van Buren, R.L.Varner, S.Yokoyama

Temperature Dependence of the Giant Dipole Resonance Width in 208Pb

NUCLEAR REACTIONS 208Pb(α, α'), E=40 MeV/nucleon; measured α-spectra, γγ-coin. 208Pb deduced GDR width temperature dependence.

doi: 10.1016/0370-2693(96)00746-0
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1995TH03      Phys.Rev. C51, 3148 (1995)

M.Thoennessen, E.Ramakrishnan, J.R.Beene, F.E.Bertrand, M.L.Halbert, D.J.Horen, P.E.Mueller, R.L.Varner

Dynamical Effects in Fusion Reactions Forming 110Sn

NUCLEAR REACTIONS 92Mo(18O, X), E=72 MeV; 60Ni(50Ti, X), E=163 MeV; measured Eγ, Iγ; deduced entrance channel effects, fusion reactions dissipation timescale. 110Sn deduced GDR decay features, Γ, time dependence of deformation, shape. Dissipative dynamics calculations.

doi: 10.1103/PhysRevC.51.3148
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1995WE10      Phys.Rev. C52, 2559 (1995)

S.P.Wells, S.W.Wissink, A.D.Bacher, G.P.A.Berg, S.M.Bowyer, S.Chang, W.A.Franklin, J.Liu, E.J.Stephenson, J.R.Beene, F.E.Bertrand, M.L.Halbert, P.E.Mueller, D.H.Olive, D.W.Stracener, R.L.Varner, J.Lisantti, K.H.Hicks

Simultaneous Measurements of (p(pol), p(pol)') and (p(pol), p'γ) Observables for the 15.11 MeV, 1+, T = 1 State in 12C at 200 MeV

NUCLEAR REACTIONS 12C(polarized p, p'), (polarized p, p'γ), E=200 MeV; measured protons yields, p(γ)(θ), spin-dependent yields, proton polarization, other observables; deduced polarization transfer coefficients, p-gamma spin asymmetries, other polarization observables.

doi: 10.1103/PhysRevC.52.2559
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1994GA02      Phys.Rev. C49, R584 (1994)

L.Gallamore, D.G.Sarantites, R.J.Charity, N.G.Nicolis, L.G.Sobotka, J.R.Beene, M.L.Halbert, R.L.Varner

Estimation of the Time Scale of Last Chance Alpha Emission using an ' Atomic Clock '

NUCLEAR REACTIONS 100Mo(60Ni, X), E=250 MeV; measured γ(X-ray)-coin, E X-ray, I X-ray, Eα, Iα; deduced K-vacancy filling before α-emission from 160Yb. 160Yb deduced last chance α-emission time scale. Atomic clock technique.

doi: 10.1103/PhysRevC.49.R584
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1994MU03      Nucl.Phys. A569, 123c (1994)

P.E.Mueller, J.R.Beene, F.E.Bertrand, M.L.Halbert, D.H.Olive, R.L.Varner, B.Sherrill, M.Thoennessen, P.Lautridou, F.Lefevre, M.Marques, T.Matulewicz, W.Mittig, R.Ostendorf, P.Roussel-Chomaz, Y.Schutz, J.van Pol, H.W.Wilschut, J.Diaz, J.L.Ferrero, A.Marin

Heavy Ion Coulomb Excitation and Gamma Decay Studies of the One and Two Phonon Giant Dipole Resonances in 208Pb and 208Bi

NUCLEAR REACTIONS 208Pb, 209Bi(64Zn, 64Zn'), E=80 MeV/nucleon; measured γ(64Zn)-coin following Coulomb excitation; deduced target, projectile GDR excitation features.

doi: 10.1016/0375-9474(94)90102-3
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1994VA36      Phys.Lett. 341B, 123 (1994)

R.L.Varner, Jr., G.R.Satchler

Where are Pion Inelastic Interactions with Nuclei Localized ( Question )

NUCLEAR REACTIONS 208Pb(π+, π+'), (π-, π-'), E=162 MeV; calculated σ(θ); deduced transition density dependence, localization features.

doi: 10.1016/0370-2693(94)90299-2
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1993HO02      Phys.Rev. C47, 629 (1993)

D.J.Horen, R.L.Auble, J.Gomez del Campo, G.R.Satchler, R.L.Varner, J.R.Beene, B.Lund, V.R.Brown, P.L.Anthony, V.A.Madsen

Systematics of Isospin Character of Transitions to the 2+1 and 3-1 States in 90,92,94,96Zr

NUCLEAR REACTIONS 90,92,94,96Zr(6Li, 6Li), (6Li, 6Li'), E=70 MeV; measured σ(θ); deduced model parameters. 90,92,94,96Zr levels deduced B(λ), neutron, proton matrix element ratio. Deformed optical model, folding model analyses.

doi: 10.1103/PhysRevC.47.629
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1992CH33      Phys.Rev. C46, 1951 (1992)

R.J.Charity, J.Barreto, L.G.Sobotka, D.G.Sarantites, D.W.Stracener, A.Chbihi, N.G.Nicolis, R.Auble, C.Baktash, J.R.Beene, F.Bertrand, M.Halbert, D.C.Hensley, D.J.Horen, C.Ludemann, M.Thoennessen, R.Varner

Mechanism for the Disassembly of Excited 16O Projectiles into Four Alpha Particles

NUCLEAR REACTIONS 159Tb(16O, 16O'X), E=25 MeV/nucleon; measured α-, light charged particle spectra; deduced projectile 4α-decay mechanism. 4π counter.

doi: 10.1103/PhysRevC.46.1951
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1992HO12      Phys.Lett. 296B, 18 (1992)

D.J.Horen, R.L.Auble, J.Gomez del Campo, R.L.Varner, J.R.Beene, G.R.Satchler, B.Lund, V.R.Brown, P.L.Anthony, V.A.Madsen

Different Effects of Valence Neutrons on the Isospin Character of Transitions to the First 2+ and 3- States of 90,92,94,96Zr

NUCLEAR REACTIONS 90,92,94,96Zr(6Li, 6Li'), E=70 MeV; measured σ(θ). 90,92,94,96Zr levels deduced neutron, proton matrix element ratio.

doi: 10.1016/0370-2693(92)90797-8
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1992TH05      Phys.Lett. 282B, 288 (1992)

M.Thoennessen, J.R.Beene, F.E.Bertrand, C.Baktash, M.L.Halbert, D.J.Horen, D.C.Hensley, D.G.Sarantites, W.Spang, D.W.Stracener, R.L.Varner

Large Deformation in A ≈ 170 Nuclei at High Excitation Energies

NUCLEAR REACTIONS 159Tb(16O, X), (16O, F), E=160 MeV; measured γ(evaporation residue)-, fission(fragment)γ-coin. 175Ta deduced GDR splitting, deformation.

doi: 10.1016/0370-2693(92)90640-P
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1991HO13      Phys.Rev. C44, 128 (1991)

D.J.Horen, R.L.Auble, J.R.Beene, F.E.Bertrand, M.L.Halbert, G.R.Satchler, M.Thoennessen, R.L.Varner, V.R.Brown, P.L.Anthony, V.A.Madsen

Isospin Character of Transitions to Bound States in 204,206,208Pb using Inelastic Scattering of 17O Ions

NUCLEAR REACTIONS 204,206,208Pb(17O, 17O'), E=375 MeV; measured σ(θ); deduced optical model parameters. 204,206,208Pb levels deduced B(λ), neutron, proton matrix element ratio. Enriched targets. DWBA analysis.

NUCLEAR STRUCTURE 204,206,208Pb; calculated B(λ), neutron, proton matrix element ratio. RPA method.

doi: 10.1103/PhysRevC.44.128
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1991VA14      Phys.Rep. 201, 57 (1991)

R.L.Varner, W.J.Thompson, T.L.McAbee, E.J.Ludwig, T.B.Clegg

A Global Nucleon Optical Model Potenital

doi: 10.1016/0370-1573(91)90039-O
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1990AU02      Phys.Rev. C41, 2620 (1990)

R.L.Auble, J.R.Beene, F.E.Bertrand, J.L.Blankenship, D.J.Horen, J.Lisantti, R.L.Varner, A.D'Onofrio

Excitation and Fission Decay of 238U Using the (17O, 17O') Reaction

NUCLEAR REACTIONS 238U(17O, 17O'F), E=375 MeV; measured σ(θ), fission (fragment)17O'(θ). 238U deduced GQR resonance parameters, fission probability.

doi: 10.1103/PhysRevC.41.2620
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1990MO09      Phys.Rev.Lett. 64, 1999 (1990)

H.P.Morsch, W.Spang, J.R.Beene, F.E.Bertrand, R.L.Auble, J.L.Charvet, M.L.Halbert, D.C.Hensley, I.Y.Lee, R.L.Varner, D.G.Sarantites, D.W.Stracener

Thermal and Angular Momentum Effects in the Giant-Dipole-Resonance Decay of Hot Rare-Earth Nuclei

NUCLEAR REACTIONS 159Tb(16O, X), E=300, 400 MeV; measured γ(fragment recoil)-coin; deduced GDR decay. Hot rare-earth nuclei.

doi: 10.1103/PhysRevLett.64.1999
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1988BE15      Nucl.Phys. A482, 407c (1988)

J.R.Beene, R.L.Varner, F.E.Bertrand

Gamma Decay of Isoscalar and Isovector Giant Resonances following Heavy-Ion Inelastic Scattering

NUCLEAR REACTIONS 208Pb(17O, 17O'), E=84 MeV/nucleon; 90Zr(17O, 17O'), E=22 MeV/nucleon; measured σ(θγ, θ(17O')) vs excitation energy. 208Pb levels deduced γ-branching, isovector quadrupole transition strength.

doi: 10.1016/0375-9474(88)90600-8
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1987BE03      Phys.Rev.Lett. 58, 455 (1987)

M.Beckerman, R.L.Auble, F.E.Bertrand, J.L.Blankenship, B.L.Burks, C.W.Glover, R.O.Sayer, G.R.Satchler, D.Shapira, R.L.Varner

Quasielastic Transfer of a Neutron between 58Ni and 208Pb at Bombarding Energies of 598 and 1011 MeV

NUCLEAR REACTIONS 208Pb(58Ni, 59Ni), (58Ni, 57Ni), E=598, 1011 MeV; measured σ(E(59Ni)), σ(E(57Ni)), σ(θ). Enriched targets, tof. DWBA analyses.

doi: 10.1103/PhysRevLett.58.455
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1987BE23      Phys.Rev. C36, 657 (1987)

M.Beckerman, R.L.Auble, F.E.Bertrand, J.L.Blankenship, B.L.Burks, M.A.G.Fernandes, C.W.Glover, E.E.Gross, D.J.Horen, R.O.Sayer, G.R.Satchler, D.Shapira, Y.Sugiyama, R.L.Varner

Elastic and Inelastic Scattering of 58Ni + 208Pb at Bombarding Energies from 598 to 1011 MeV

NUCLEAR REACTIONS 208Pb(58Ni, 58Ni), (58Ni, 58Ni'), E=598-1011 MeV; measured σ(E), σ(θ). 208Pb, 58Ni levels deduced B(E2), Coulomb deformation constants. Optical model, DWBA, coupled-channels calculations.

doi: 10.1103/PhysRevC.36.657
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1987VA01      Phys.Lett. 185B, 6 (1987)

R.L.Varner, T.B.Clegg, T.L.McAbee, W.J.Thompson

Global Parameterization of the Nucleon-Nucleus Scattering Potential

NUCLEAR REACTIONS 40Ca, 54Fe, 58,60Ni, 65Cu, 116,120Sn, 208Pb(n, n), (polarized n, n), E=10-26 MeV; 114,112Cd, 116,118,120,122Sn(p, p), (polarized p, p), E=16-65 MeV; 60,62,64Ni, 89Y, 90Zr(p, p), (polarized p, p), E=65 MeV; analyzed σ(θ), analyzing power data; deduced new optical potential parameters.

doi: 10.1016/0370-2693(87)91518-8
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1987VA31      Phys.Rev. C36, 1865 (1987)

S.P.Van Verst, D.P.Sanderson, K.W.Kemper, D.Shapira, R.L.Varner, B.Shivakumar

Sequential Breakup Cross Section of 6Li by 40Ca

NUCLEAR REACTIONS, MECPD 6Li(40Ca, 40Ca'), E=227 MeV; 40Ca(6Li, 6Li), (6Li, 6Li'), E=34 MeV; measured σ(θ); deduced projectile excitation, breakup characteristics, channel coupling effects, model parameters. DWBA, coupled-channels analyses.

doi: 10.1103/PhysRevC.36.1865
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1986BU18      Phys.Rev. C34, 2316 (1986)

B.L.Burks, R.L.Varner, E.J.Ludwig

Q-Value Determination for the 80Kr(d, p)81Kr Reaction

NUCLEAR REACTIONS 80Kr(d, p), E=11 MeV; measured σ(Ep); deduced Q. 80Kr deduced mass excess. Ion implanted foil target.

doi: 10.1103/PhysRevC.34.2316
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1985BU14      Nucl.Phys. A442, 300 (1985)

B.L.Burks, R.E.Anderson, T.B.Clegg, E.J.Ludwig, R.L.Varner

Spins and Parities of Low-Lying States in 81Kr from the 80Kr(d(pol), p)81Kr Reaction and Implications for a 81Br Solar Neutrino Detector

NUCLEAR REACTIONS 80Kr(polarized d, p), (polarized d, d), E=11 MeV; 80Kr(polarized p, p), E=16 MeV; measured σ(θ), A(θ). 81Kr levels deduced J, π, S. Enriched gas, ion-implanted foil target. Optical model, DWBA analyses.

doi: 10.1016/0375-9474(85)90147-2
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1984BU23      Phys.Rev. C30, 742 (1984)

B.L.Burks, R.E.Anderson, Y.Aoki, B.C.Karp, E.J.Ludwig, W.J.Thompson, R.L.Varner

81Kr-81Br Ground-State Mass Difference and Implications for Calibration of a 81Br Solar Neutrino Detector

NUCLEAR REACTIONS 82Kr(d, t), (d, 3He), E=17 MeV; measured σ(Et), σ(E(3He)); deduced Q-value difference. 81Kr, 81Br deduced mass difference.

doi: 10.1103/PhysRevC.30.742
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1984DE01      Nucl.Phys. A414, 113 (1984)

J.P.Delaroche, R.L.Varner, T.B.Clegg, R.E.Anderson, B.L.Burks, E.J.Ludwig, J.F.Wilkerson

Structure of Low-Lying States of 76,78,80,82Se Deduced from (p(pol), p') Scattering at 16 MeV

NUCLEAR REACTIONS 76,78,80,82Se(polarized p, p), (polarized p, p'), E=16 MeV; measured σ(θ), A(θ). 76,78,80,82Se deduced deformation parameters. Coupled-channels calculations.

doi: 10.1016/0375-9474(84)90500-1
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0781.


1984HA22      Nucl.Phys. A419, 45 (1984)

M.Haller, W.Kretschmer, R.E.Anderson, B.L.Burks, T.B.Clegg, E.J.Ludwig, R.L.Varner, J.F.Wilkerson

Investigation of the Reactions 58Ni(d, α)56Co and 50Ti(d, α)48Sc with Vector and Tensor Polarized Deuterons

NUCLEAR REACTIONS 58Ni, 50Ti(d, α), E=16 MeV; measured σ(θ), relative vector, tensor analyzing power vs θ. 56Co, 48Sc levels deduced L-transfer, J, π. DWBA analysis.

doi: 10.1016/0375-9474(84)90284-7
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1640.


1982BU03      Phys.Rev. C25, 1168 (1982)

B.L.Burks, R.E.Anderson, T.B.Clegg, H.Paetz gen.Schieck, E.J.Ludwig, R.L.Varner, J.F.Wilkerson

Test of the Polarization-Analyzing Power Equality in Two (p(pol), d) Reactions and Their Inverses

NUCLEAR REACTIONS 11B(polarized p, d), E=11.34-11.94 MeV; 13C(polarized p, d), E=13.79-14.39 MeV; measured analyzing power vs E, θ; deduced no definitive time-reversal invariance violation.

doi: 10.1103/PhysRevC.25.1168
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Note: The following list of authors and aliases matches the search parameter R.Varner: , R.I.VARNER, R.L.VARNER