NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = F.Becchetti Found 148 matches. Showing 1 to 100. [Next]2022LO14 Phys.Rev. C 106, 045501 (2022) J.Long, C.R.Nicoloff, D.W.Bardayan, F.D.Becchetti, D.Blankstein, C.Boomershine, D.P.Burdette, M.A.Caprio, L.Caves, P.J.Fasano, B.Frentz, S.L.Henderson, J.M.Kelly, J.J.Kolata, B.Liu, P.D.O'Malley, S.Y.Strauss, R.Zite, M.Brodeur Precision half-life determination for the β+ emitter 13N RADIOACTIVITY 13N(β+)[from 2H(12C, n), E=34 MeV]; measured β+; deduced T1/2, ft value. Comparison to previous experimental results; calculated B(GT). Calculations using ab initio no-core configuration interaction (NCCI) with the Daejeon16 interaction. TwinSol twin-solenoid facility at NSL coupled to NSL β-counting station (University of Notre Dame).
doi: 10.1103/PhysRevC.106.045501
2020BU02 Phys.Rev. C 101, 055504 (2020) D.P.Burdette, M.Brodeur, D.W.Bardayan, F.D.Becchetti, D.Blankstein, C.Boomershine, L.Caves, S.L.Henderson, J.J.Kolata, B.Liu, J.Long, P.D.O'Malley, S.Y.Strauss Precise half-life determination of the mixed-mirror β-decaying 15O RADIOACTIVITY 15O(β+)[from 2H(14N, n), E=39 MeV]; measured Eβ, Iβ, T1/2 of 15O decay using a plastic scintillator at the β-Counting Station of the Nuclear Science Laboratory of University Notre Dame. Comparison with previous experimental results. Relevance to future determinations of Cabibbo-Kobayashi-Maskawa (CKM) matrix Vud for superallowed mirror transitions of 1/2 isospin. NUCLEAR REACTIONS 2H(14N, n)1H/4He/6Li/12C/13C/14N/15N/15O, E=39 MeV; measured reaction products, particle identification plot.
doi: 10.1103/PhysRevC.101.055504
2020FE06 Phys.Rev.Lett. 125, 062501 (2020) M.Febbraro, R.J.deBoer, S.D.Pain, R.Toomey, F.D.Becchetti, A.Boeltzig, Y.Chen, K.A.Chipps, M.Couder, K.L.Jones, E.Lamere, Q.Liu, S.Lyons, K.T.Macon, L.Morales, W.A.Peters, D.Robertson, B.C.Rasco, K.Smith, C.Seymour, G.Seymour, M.S.Smith, E.Stech, B.Vande Kolk, M.Wiescher New 13C(α, n)16O Cross Section with Implications for Neutrino Mixing and Geoneutrino Measurements NUCLEAR REACTIONS 13C(α, n), E=5.2-6.4 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with experimental data, JENDL and ENDF/B evaluated libraries.
doi: 10.1103/PhysRevLett.125.062501
2020LO01 Phys.Rev. C 101, 015501 (2020) J.Long, M.Brodeur, M.Baines, D.W.Bardayan, F.D.Becchetti, D.Blankstein, C.Boomershine, D.P.Burdette, A.M.Clark, B.Frentz, S.L.Henderson, J.M.Kelly, J.J.Kolata, B.Liu, K.T.Macon, P.D.O'Malley, A.Pardo, C.Seymour, S.Y.Strauss, B.Vande Kolk Precision half-life measurement of 29P RADIOACTIVITY 29P(β+)[from 2H(28Si, X), E=9 MeV, followed by separation of 29P using the TwinSol facility at the FN tandem accelerator of the University of Notre Dame, and implantation of 29P beam in the NSL β-decay counting station]; measured β spectra, precise half-life of the decay of 29P; deduced ft value for the β transition to the ground state of 29Si, Cabibbo-Kobayashi-Maskawa matrix element Vud, Fermi to Gamow-Teller mixing ratio; evaluated half-life using present and previous experimental values. Discussed in detail corrections and uncertainties. Comparison with previous half-life measurements.
doi: 10.1103/PhysRevC.101.015501
2020MU07 Phys.Rev. C 101, 055801 (2020) M.Munch, C.Matei, S.D.Pain, M.T.Febbraro, K.A.Chipps, H.J.Karwowski, C.Aa.Diget, A.Pappalardo, S.Chesnevskaya, G.L.Guardo, D.Walter, D.L.Balabanski, F.D.Becchetti, C.R.Brune, K.Y.Chae, J.Frost-Schenk, M.J.Kim, M.S.Kwag, M.La Cognata, D.Lattuada, R.G.Pizzone, G.G.Rapisarda, G.V.Turturica, C.A.Ur, Y.Xu Measurement of the 7Li(γ, t)4He ground-state cross section between Eγ = 4.4. and 10 MeV NUCLEAR REACTIONS 7Li(γ, t), E=4.4-10 MeV from High Intensity Gamma-ray Source (HIγS) at TUNL; measured E(t), I(t), Eα, Iα, Eγ and Iγ, αt-coin, ground state σ(E) using the SIDAR silicon detector array. 3H(α, γ), E(cm)=0-7 MeV; deduced astrophysical S-factor from R-matrix analysis. Comparison with model predictions, and with previous experimental results. Relevance to primordial Li problem and the mirror α-capture reactions.
doi: 10.1103/PhysRevC.101.055801
2020PA31 Phys.Rev. C 102, 031601 (2020) A.Pakou, L.Acosta, P.D.O'Malley, S.Aguilar, E.F.Aguilera, M.Baines, D.Bardayan, F.D.Becchetti, Ch.Boomershine, M.Brodeur, F.Cappuzzello, S.Carmichael, L.Caves, E.Chavez, C.Flores-Vazquez, A.Gula, J.J.Kolata, B.Liu, D.J.Marin-Lambarri, F.F.Morales, K.Rusek, A.M.Sanchez-Benitez, O.Sgouros, V.R.Sharma, V.Soukeras, G.Souliotis Dominance of direct reaction channels at deep sub-barrier energies for weakly bound nuclei on heavy targets: The case 8B + 208Pb NUCLEAR REACTIONS 208Pb(8B, 7Be), E=30 MeV, [secondary 8B beam from 3He(6Li, X)7Li/7Be/8B reaction using TwinSol facility at the University of Notre Dame FM tandem accelerator]; measured reaction products and elastically scattered particles, differential σ(θ) using Si telescopes, time-of-flight ΔE-E spectra; deduced direct to total reaction cross section, and compared with previous experimental σ ratios for 209Bi+6He, 58Ni+8B, and 28Si+7Be reactions, breakup cross section for the 208Pb+8B system at deep sub-barrier energies. Comparison with CDCC calculations, with Coulomb plus nuclear potentials, and Coulomb potentials only.
doi: 10.1103/PhysRevC.102.031601
2019BU01 Phys.Rev. C 99, 015501 (2019) D.P.Burdette, M.Brodeur, T.Ahn, J.Allen, D.W.Bardayan, F.D.Becchetti, D.Blankstein, G.Brown, B.Frentz, M.R.Hall, S.King, J.J.Kolata, J.Long, K.T.Macon, A.Nelson, P.D.O'Malley, C.Seymour, M.Skulski, S.Y.Strauss, A.A.Valverde Resolving the discrepancy in the half-life of 20F RADIOACTIVITY 20F(β-)[from 2H(19F, p), E=46.0 MeV followed by separation of the radioactive beam using TwinSol]; measured T1/2 of 20F g.s. from β-decay curves using plastic scintillator for β- detection at the University of Notre Dame Nuclear Science Laboratory; deduced recommended average half-life by considering a selection from compiled previous experimental values.
doi: 10.1103/PhysRevC.99.015501
2018VA04 Phys.Rev. C 97, 035503 (2018) A.A.Valverde, M.Brodeur, T.Ahn, J.Allen, D.W.Bardayan, F.D.Becchetti, D.Blankstein, G.Brown, D.P.Burdette, B.Frentz, G.Gilardy, M.R.Hall, S.King, J.J.Kolata, J.Long, K.T.Macon, A.Nelson, P.D.O'Malley, M.Skulski, S.Y.Strauss, B.Vande Kolk Precision half-life measurement of 11C: The most precise mirror transition Ft value RADIOACTIVITY 11C(β+), (EC)[from 2H(10B, n), E=32.5 MeV at the Nuclear Science Laboratory of University of Notre Dame, followed by mass separation of 11C ions by TwinSol mass separator and implanted in a thick tantalum foil in NSL β-counting station]; measured Eβ, Iβ, half-life of 11C decay; deduced Ftmirror, Gamow-Teller-to-Fermi mixing ratio ρ, β asymmetry parameter Ab, β-neutrino angular correlation parameter aβν, neutrino asymmetry parameter Bn. Comparison with literature values. NUCLEAR REACTIONS 2H(10B, n)4He/9Be/10B/11C, E=32.5 MeV; measured yields for ions using TwinSol mass separator at University of Notre Dame.
doi: 10.1103/PhysRevC.97.035503
2017AG09 Phys.Rev. C 96, 024616 (2017) E.F.Aguilera, E.Martinez-Quiroz, P.Amador-Valenzuela, D.Lizcano, A.Garcia-Flores, J.J.Kolata, A.Roberts, G.V.Rogachev, G.F.Peaslee, V.Guimaraes, F.D.Becchetti, A.Villano, M.Ojaruega, Y.Chen, H.Jiang, M.Febbraro, P.A.DeYoung, T.L.Belyaeva Sub-barrier fusion of weakly bound 6Li with 58Ni NUCLEAR REACTIONS 58Ni(6Li, X), E=10.8, 11.5, 12.7, 13.2, 13.7, 14.4 MeV, [secondary pure 6Li beam from 3He(6Li, 6Li), E=31-38 MeV reaction]; measured σ(θ, E) for evaporated protons at the University of Notre Dame FN tandem accelerator facility; deduced proton multiplicities, fusion σ(E) and total reaction σ(E). Proton angular distributions compared with statistical model calculations using PACE2 code. Comparison of fusion σ(E) data with previous experimental data for this reaction and for the 6Li+59Co, 6Li+64Zn, and 6Li+64Ni systems. Comparison with theoretical calculations using one-dimensional barrier penetration model (BPM) and coupled-channel (CC) method using optical model potentials.
doi: 10.1103/PhysRevC.96.024616
2017FE07 Phys.Rev. C 96, 024613 (2017) M.Febbraro, F.D.Becchetti, R.O.Torres-Isea, J.Riggins, C.C.Lawrence, J.J.Kolata, A.M.Howard (d, n) proton-transfer reactions on 9Be, 11B, 13C, 14, 15N, and 19F and spectroscopic factors at Ed = 16 MeV NUCLEAR REACTIONS 9Be, 11B, 13C, 14,15N, 19F(d, n), E=16 MeV; measured neutron spectra, time-of-flight spectra, σ(θ) using deuterated liquid-scintillator array (UM-DSA) at the Tandem accelerator facility of University of Notre Dame. Solid and gaseous targets. Finite-range distorted-wave Born approximation (FR-DWBA) analysis with common bound-state, global, and local optical-model parameter sets. 10B, 12C, 14N, 15,16O, 20Ne; deduced levels, L-transfer, J, π, configuration, spectroscopic factors. Comparison with previous measurements and theoretical calculations.
doi: 10.1103/PhysRevC.96.024613
2017LO09 Phys.Rev. C 96, 015502 (2017) J.Long, T.Ahn, J.Allen, D.W.Bardayan, F.D.Becchetti, D.Blankstein, M.Brodeur, D.Burdette, B.Frentz, M.R.Hall, J.M.Kelly, J.J.Kolata, P.D.O'Malley, B.E.Schultz, S.Y.Strauss, A.A.Valverde Precision half-life measurement of 25Al RADIOACTIVITY 25Al(EC), (β+)[from 2H(24Mg, n) at the NSL tandem accelerator facility of the University of Notre Dame]; measured Eβ, Iβ, half-life of 25Al decay; deduced world-averaged half-life, Fermi to Gamow-Teller mixing ratio ρ and correlation parameters, and values for various parameters of relevance for determining the Vud term from the 25Al mirror transition. Comparison with previous measurements.
doi: 10.1103/PhysRevC.96.015502
2017MO04 Phys.Rev. C 95, 014615 (2017) V.Morcelle, R.Lichtenthaler, A.Lepine-Szily, V.Guimaraes, K.C.C.Pires, J.Lubian, D.R.Mendes, Jr, P.N.de Faria, J.J.Kolata, F.D.Becchetti, H.Jiang, E.F.Aguilera, D.Lizcano, E.Martinez-Quiroz, H.Garcia 8B + 27Al scattering at low energies NUCLEAR REACTIONS 27Al(8B, 8B), (8B, X), E=15.3, 21.7 MeV, [8B secondary beam from 3He(6Li, X), E=26.5, 32.5 MeV primary reaction]; measured scattered particle spectra, σ(θ, E) at Radioactive Ion Beams in Brasil facility (RIBRAS), and at TwinSol facility at the University of Notre Dame; deduced total reaction cross sections and compared with reduced cross sections for 7,9Be, 6,7Li, 6He and 16O projectiles on 27Al target, effect of breakup plus transfer channels on the total reaction cross sections. Optical model analysis using standard double-folding Sao Paulo potential and Woods-Saxon shape, and continuum discretized coupled channels (CDCC) calculations.
doi: 10.1103/PhysRevC.95.014615
2016BR01 Phys.Rev. C 93, 025503 (2016) M.Brodeur, C.Nicoloff, T.Ahn, J.Allen, D.W.Bardayan, F.D.Becchetti, Y.K.Gupta, M.R.Hall, O.Hall, J.Hu, J.M.Kelly, J.J.Kolata, J.Long, P.O'Malley, B.E.Schultz Precision half-life measurement of 17F RADIOACTIVITY 17F(β+)[from 2H(16O, X), E not given]; measured β radiation, half-life of 17F decay at the University of Notre Dame β-decay counting station; deduced mixing ratio ρ for the mixed transition between mirror nuclei and the correlation parameters based on Standard Model validity. Discussed uncertainty estimates. Comparison with previous experimental measurements. NUCLEAR REACTIONS 2H(16O, X)12C/13C/14N/15O/16O/17O/17F, E not given; measured yields of reaction products at Notre Dame TwinSol facility.
doi: 10.1103/PhysRevC.93.025503
2016FR01 Phys.Rev. C 93, 014321 (2016) A.Fritsch, S.Beceiro Novo, D.Suzuki, W.Mittig, J.J.Kolata, T.Ahn, D.Bazin, F.D.Becchetti, B.Bucher, Z.Chajecki, X.Fang, M.Febbraro, A.M.Howard, Y.Kanada-En'yo, W.G.Lynch, A.J.Mitchell, M.Ojaruega, A.M.Rogers, A.Shore, T.Suhara, X.D.Tang, R.Torres-Isea, H.Wang One-dimensionality in atomic nuclei: A candidate for linear-chain α clustering in 14C NUCLEAR REACTIONS 4He(10Be, α), E=39.7 MeV, [secondary 10Be beam from 13C(11B, 10B), E=46 MeV primary reaction]; measured particle spectra, differential cross sections for elastic and inelastic scattering, angular distributions using the prototype active target-time projection chamber (PAT-TPC) at Notre Dame TwinSol facility. 14C; deduced levels, α-resonances, J, π, band, α-widths, L-transfers, spectroscopic factors. R-matrix analysis. Comparison with predictions of antisymmetrized molecular dynamics (AMD) theory, and evidence for a 3α-linear chain structure in 14C.
doi: 10.1103/PhysRevC.93.014321
2016GU09 Phys.Rev. C 93, 064607 (2016) V.Guimaraes, J.J.Kolata, E.F.Aguilera, A.Howard, A.Roberts, F.D.Becchetti, R.O.Torres-Isea, A.Riggins, M.Febrarro, V.Scarduelli, P.N.de Faria, D.S.Monteiro, J.F.P.Huiza, A.Arazi, J.Hinnefeld, A.M.Moro, E.S.Rossi, V.Morcelle, A.Barioni, AlanJ.Mitchell Backscattering measurement of 6He on 209Bi: Critical interaction distance NUCLEAR REACTIONS 209Bi(6He, 6He), E=12, 14, 16 MeV, [secondary 6He beam from 2H(7Li, 6He), E=32 MeV]; measured 6He spectra using silicon ΔE-E telescope, σ(θ, E) at the TwinSol facility of Notre Dame Nuclear Structure Laboratory; deduced ratio of elastic to Rutherford cross sections. Comparison with a three-body CDCC calculation, and with experimental data for 209Bi(α, α), (6Li, 6Li), (9Be, 9Be), (12C, 12C), (16O, 16O), and 208Pb(6He, 6He) reactions.
doi: 10.1103/PhysRevC.93.064607
2014MA28 Acta Phys.Pol. B45, 279 (2014) Z.Majka, M.Barbui, F.Becchetti, G.Chubaryan, M.Cinausero, D.Fabris, G.Giuliani, H.Griffin, K.Hagel, J.Kallunkathariyil, E-J.Kim, S.Kowalski, P.Lasko, M.Lunardon, T.Materna, S.Moretto, R.Murthy, J.Natowitz, G.Nebbia, T.O'Donnel, S.Pesente, R.Planeta, G.Prete, L.Quin, V.Rizzi, P.Sahu, K.Schmidt, G.Souliotis, Z.Sosin, G.Viesti, R.Wada, J.Wang, A.Wieloch, S.Wuenschel, H.Zheng Experimental Search for Super and Hyper Heavy Nuclei at Cyclotron Institute Texas A and M University
doi: 10.5506/APhysPolB.45.279
2014MA49 Phys.Rev. C 90, 014616 (2014) E.Martinez-Quiroz, E.F.Aguilera, D.Lizcano, P.Amador-Valenzuela, H.Garcia-Martinez, J.J.Kolata, A.Roberts, L.O.Lamm, G.Rogachev, V.Guimaraes, F.D.Becchetti, A.Villano, M.Ojaruega, M.Febbraro, Y.Chen, H.Jiang, P.A.DeYoung, G.F.Peaslee Near- and sub-barrier fusion of the 7Be + 58Ni system NUCLEAR REACTIONS 58Ni(7Be, X), E=16.4, 17.5, 19.4, 20.1, 20.9, 21.9 MeV; measured evaporated proton spectra, σ(E) for protons at Notre Dame TwinSol Radioactive Nuclear Beam facility and FM tandem accelerator; deduced total fusion σ(E) using proton multiplicities. Comparison with predictions of Wong's one-dimensional barrier-penetration model (BPM), and optical model potential (OMP). Comparison with previous experimental results for fusion σ(E) in 27Al(7Be, X), and fission σ(E) in 238U(7Be, F).
doi: 10.1103/PhysRevC.90.014616
2014MO07 Phys.Rev. C 89, 044611 (2014) V.Morcelle, R.Lichtenthaler, R.Linares, M.C.Morais, V.Guimaraes, A.Lepine-Szily, P.R.S.Gomes, J.Lubian, D.R.Mendes, Jr., P.N.De Faria, A.Barioni, L.R.Gasques, J.M.B.Shorto, K.C.C.Pires, J.C.Zamora, R.P.Condori, V.Scarduelli, J.J.Kolata, H.Amro, F.D.Becchetti, H.Jiang, E.F.Aguilera, D.Lizcano, E.Martinez-Quiroz, H.Garcia Elastic scattering and total reaction cross section for the 7Be + 27Al system at near-barrier energies NUCLEAR REACTIONS 27Al(7Be, 7Be), [secondary 7Be produced in 3He(6Li, 7Be) primary reaction], E=10.0, 13.8, 15.2, 15.4 MeV; measured particle spectra, elastic σ(E, θ) using RIBRAS system at Sao Paulo, and TwinSol at NSL-Notre Dame facilities; deduced mean radii of sensitivity, energy dependence of the interacting optical potential, total reaction σ(E). Optical model analysis using the double-folding Sao Paulo and phenomenological Woods-Saxon and Sao Paulo potentials. Analysis of data obtained for 27Al, 197Au(8B, 8B) reactions in progress.
doi: 10.1103/PhysRevC.89.044611
2013AG01 Phys.Rev. C 87, 014613 (2013) E.F.Aguilera, E.Martinez-Quiroz, R.Chavez-Gonzalez, P.Amador-Valenzuela, D.Lizcano, A.Gomez-Camacho, J.J.Kolata, L.O.Lamm, A.Roberts, T.Spencer, F.D.Becchetti, H.Jiang, M.Ojaruega, P.A.DeYoung, G.F.Peaslee, J.Brown Near-barrier fusion and total reaction of a proton-rich projectile: 3He+58Ni NUCLEAR REACTIONS 58Ni(3He, X), (3He, 3He), E=10.2, 11.5, 12.7 MeV; measured proton and 3He spectra, σ(θ) at Notre Dame TwinSol facility; deduced integrated proton production σ, reduced fusion σ. Comparison with 58Ni+8Be and 58Ni+16O systems, and with PACE calculations.
doi: 10.1103/PhysRevC.87.014613
2013RO10 Phys.Rev. C 87, 051305 (2013) A.Roberts, A.M.Howard, J.J.Kolata, A.N.Villano, F.D.Becchetti, P.A.DeYoung, M.Febbraro, S.J.Freeman, B.P.Kay, S.A.McAllister, A.J.Mitchell, J.P.Schiffer, J.S.Thomas, R.O.Torres-Isea Proton pair correlations and the neutrinoless double-β decay of 76Ge NUCLEAR REACTIONS 74,76Ge(3He, n), E=16 MeV; measured E(n), I(n), time-of-flight, σ(θ) for g.s. and first 2+ state using the Neutron Wall at Notre Dame. 76,78Se; deduced levels, proton pair correlations. DWBA analysis. Comparison with quasiparticle random phase approximation (QRPA) model calculations. Relevance to matrix elements for 0νββ decay of 76Ge. Systematics of ground-state cross sections on fpg-shell nuclei of A=60-90, and comparison with theoretical models. No evidence for the breaking of the BCS approximation for paired protons.
doi: 10.1103/PhysRevC.87.051305
2013SU10 Phys.Rev. C 87, 054301 (2013) D.Suzuki, A.Shore, W.Mittig, J.J.Kolata, D.Bazin, M.Ford, T.Ahn, F.D.Becchetti, S.Beceiro Novo, D.Ben Ali, B.Bucher, J.Browne, X.Fang, M.Febbraro, A.Fritsch, E.Galyaev, A.M.Howard, N.Keeley, W.G.Lynch, M.Ojaruega, A.L.Roberts, X.D.Tang Resonant α scattering of 6He: Limits of clustering in 10Be NUCLEAR REACTIONS 4He(6He, 6He), (6He, 6He'), (6He, 2n)8Be, [secondary 6He beam from 7Li(d, 3He), E=29.2 MeV primary reaction], E=15 MeV; measured reactions products, 6He spectra, elastic and inelastic σ(E, θ) using PAT-TPC system at Notre Dame TwinSol facility. 4,6He, 8Be; deduced levels, cross sections for g.s. and first 2+ states. 10Be; deduced level, resonance, J, π, α width. Discussed α clustering in high-spin states. Comparison with antisymmetric molecular dynamics calculations.
doi: 10.1103/PhysRevC.87.054301
2011AG15 Phys.Rev.Lett. 107, 092701 (2011) E.F.Aguilera, P.Amador-Valenzuela, E.Martinez-Quiroz, D.Lizcano, P.Rosales, H.Garcia-Martinez, A.Gomez-Camacho, J.J.Kolata, A.Roberts, L.O.Lamm, G.Rogachev, V.Guimaraes, F.D.Becchetti, A.Villano, M.Ojaruega, M.Febbraro, Y.Chen, H.Jiang, P.A.DeYoung, G.F.Peaslee, C.Guess, U.Khadka, J.Brown, J.D.Hinnefeld, L.Acosta, E.S.Rossi, Jr., J.F.P.Huiza, T.L.Belyaeva Near-Barrier Fusion of the 8B+58Ni Proton-Halo System NUCLEAR REACTIONS 58Ni(8B, X)66As, E=22.4-26.9 MeV; measured reaction products, proton spectra; deduced fusion σ, fusion and breakup yields.
doi: 10.1103/PhysRevLett.107.092701
2011BA25 Phys.Rev. C 84, 014603 (2011) A.Barioni, J.C.Zamora, V.Guimaraes, B.Paes, J.Lubian, E.F.Aguilera, J.J.Kolata, A.L.Roberts, F.D.Becchetti, A.Villano, M.Ojaruega, H.Jiang Elastic scattering and total reaction cross sections for the 8B, 7Be, and 6Li +12C systems NUCLEAR REACTIONS 12C(8B, 8B), E=25.8 MeV; 12C(7Be, 7Be), E=18.8 MeV; 12C(6Li, 6Li), E=12.3 MeV; measured particle spectra, tof, σ(θ). Optical model analysis of σ(θ) data using Woods-Saxon and double-folding type potentials. 12C(8B, 8B); deduced effect of breakup by coupled-channels calculations using continuum discretized coupled-channel method and cluster-model folding potentials. Experimental data for 12C(α, α), (6He, 6He), (7Li, 7Li), (9Be, 9Be), (11B, 11B), (16O, 16O), E(cm)=2.8-22.8 MeV used to extract reduced reaction σ.
doi: 10.1103/PhysRevC.84.014603
2011BA51 J.Phys.:Conf.Ser. 312, 082012 (2011) M.Barbui, K.Hagel, J.B.Natowitz, A.Bonasera, R.Wada, P.K.Sahu, T.Materna, Z.Chen, L.Quin, G.A.Souliotis, G.Chubaryan, D.Fabris, M.Lunardon, M.Morando, S.Moretto, G.Nebbia, S.Pesente, G.Viesti, F.Bocci, M.Cinausero, V.Rizzi, G.Prete, S.Kowalski, Z.Majka, A.Wieloch, F.D.Becchetti, T.W.O'Donnel, H.Griffin Search for Heavy and Superheavy systems in 197Au + 232Th Collisions near the Coulomb Barrier NUCLEAR REACTIONS 232Th(197Au, X), E=7.5 MeV/nucleon; measured yields; calculated yields at 6, 6.75, 7.5 MeV/nucleon using constrained molecular dynamics.
doi: 10.1088/1742-6596/312/4/082012
2009AG02 Phys.Rev. C 79, 021601 (2009) E.F.Aguilera, E.Martinez-Quiroz, D.Lizcano, A.Gomez-Camacho, J.J.Kolata, L.O.Lamm, V.Guimaraes, R.Lichtenthaler, O.Camargo, F.D.Becchetti, H.Jiang, P.A.DeYoung, P.J.Mears, T.L.Belyaeva Reaction cross sections for 8B, 7Be, and 6Li+58Ni near the Coulomb barrier: Proton-halo effects NUCLEAR REACTIONS 58Ni(6Li, 6Li), E=9.9, 11.2, 12.1, 13.0, 14.0 MeV; 58Ni(7Be, 7Be), E=15.1, 17.1, 18.5, 19.9, 21.4 MeV; 58Ni(8B, 8B), E=20.7, 23.4, 25.3, 27.2, 29.3 MeV; measured σ, angular distributions; deduced total reaction and breakup cross section for (8B, 8B) reaction, and proton halo effects for 8B. Comparison with optical-model calculations.
doi: 10.1103/PhysRevC.79.021601
2009AG10 Phys.Rev. C 80, 044605 (2009) E.F.Aguilera, E.Martinez-Quiroz, P.Rosales, J.J.Kolata, P.A.DeYoung, G.F.Peaslee, P.Mears, C.Guess, F.D.Becchetti, J.H.Lupton, Y.Chen Hindrance of complete fusion in the 8Li+208Pb system at above-barrier energies NUCLEAR REACTIONS 208Pb(8Li, 4n), (8Li, 5n), E(cm)=32.1, 33.0, 33.9, 34.8, 35.7, 36.6, 37.5 MeV; 212At, 211At; measured α spectra, fusion-evaporation σ, and excitation functions. Pulsed beam. Comparison with barrier-potential model (BPM) calculations.
doi: 10.1103/PhysRevC.80.044605
2009AG14 Phys.Rev. C 79, 021601(R) (2009) E.F.Aguilera, E.Martinez-Quiroz, D.Lizcano, A.Gomez-Camacho, J.J.Kolata, L.O.Lamm, V.Guimaraes, R.Lichtenthaler, O.Camargo, F.D.Becchetti, H.Jiang, P.A.Deyoung, P.J.Mears, T.L.Belyaeva Reaction cross sections for 8B, 7Be, and 6Li + 58Ni near the Coulomb barrier: Proton-halo effects NUCLEAR REACTIONS 58Ni(8B, 8B), 58Ni(7Be, 7Be), 58Ni(6Li, 6Li), E=9.8-29.2 MeV; measured products, 58Ni; deduced σ(θ). Data were imported from EXFOR entry C1671.
doi: 10.1103/physrevc.79.021601
2009BA34 Int.J.Mod.Phys. E18, 1036 (2009) M.Barbui, T.Materna, P.Sahu, A.Wieloch, F.D.Becchetti, G.Chubaryan, M.Cinausero, T.W.O'Donnell, D.Fabris, H.Griffin, K.Hagel, S.Kowalski, M.Lunardon, Z.Majka, S.Moretto, R.Murthy, J.B.Natowitz, G.Nebbia, S.Pesente, G.Prete, L.Qin, V.Rizzi, Z.Sosin, G.Souliotis, G.Viesti, R.Wada, J.Wang New experimental approach for heavy and superheavy element production NUCLEAR REACTIONS 232Th(197Au, X), E=7.5 MeV/nucleon; measured TOF-coin. Found candidates for superheavies. Very preliminary.
doi: 10.1142/S0218301309013208
2008CA17 Phys.Rev. C 78, 034605 (2008) O.Camargo, V.Guimaraes, R.Lichtenthaler, V.Scarduelli, J.J.Kolata, C.A.Bertulani, H.Amro, F.D.Becchetti, H.Jiang, E.F.Aguilera, D.Lizcano, E.Martinez-Quiroz, H.Garcia The 9Be(8Li, 9Be)8Li elastic-transfer reaction NUCLEAR REACTIONS 9Be(8Li, 9Be), E=27 MeV; measured angular distributions, σ(θ); deduced spectroscopic factors. 6,8Li(p, γ); deduced σ, reaction rates. Comparisons with DWBA and shell model calculations.
doi: 10.1103/PhysRevC.78.034605
2007AM10 Eur.Phys.J. Special Topics 150, 1 (2007) H.Amro, F.D.Becchetti, Y.Chen, H.Jiang, M.Ojaruega, M.J.Golobish, H.C.Griffin, J.J.Kolata, B.Skorodumov, G.Peaslee, P.A.DeYoung, P.Mears, D.Denby, J.Brown, J.D.Hinnefeld, A.M.Moro 7Be-induced α -transfer reaction on 12C NUCLEAR REACTIONS 12C(7Be, 3He), E=34 MeV; measured σ and angular distributions.
doi: 10.1140/epjst/e2007-00250-4
2007GU13 Phys.Rev. C 75, 054602 (2007) V.Guimaraes, R.Lichtenthaler, O.Camargo, A.Barioni, M.Assuncao, J.J.Kolata, H.Amro, F.D.Becchetti, H.Jiang, E.F.Aguilera, D.Lizcano, E.Martines-Quiroz, H.Garcia Neutron transfer reactions induced by 8Li on 9Be NUCLEAR REACTIONS 9Be(8Li, 8Li), 9Be(8Li, 7Li), 9Be(8Li, 9Li), E=27 MeV; measured σ and angular distributions. Deduced spectroscopic factors, compared results to optical model calculations.
doi: 10.1103/PhysRevC.75.054602
2007KO23 Phys.Rev. C 75, 031302 (2007) J.J.Kolata, H.Amro, F.D.Becchetti, J.A.Brown, P.A.DeYoung, M.Hencheck, J.D.Hinnefeld, G.F.Peaslee, A.L.Fritsch, C.Hall, U.Khadka, Patrick J.Mears, P.O'Rourke, D.Padilla, J.Rieth, T.Spencer, T.Williams Breakup of 6He incident on 209Bi near the Coulomb barrier NUCLEAR REACTIONS 209Bi(6He, 2nα), E=22.5 MeV; measured En, Eα, nα-coin, σ(θ); deduced reaction mechanism features. 6He level deduced B(E2).
doi: 10.1103/PhysRevC.75.031302
2007RO01 Phys.Rev. C 75, 014603 (2007) G.V.Rogachev, J.J.Kolata, A.S.Volya, F.D.Becchetti, Y.Chen, P.A.DeYoung, J.Lupton Spectroscopy of 9C via resonance scattering of protons on 8B NUCLEAR REACTIONS 1H(8B, p), E(cm)=0.5-3.2 MeV; measured Ep, σ(θ), excitation function. 9C deduced resonance energies, widths, J, π. Thick target, R-matrix analysis, continuum shell model calculations.
doi: 10.1103/PhysRevC.75.014603
2007SK02 Phys.Rev. C 75, 024607 (2007) B.B.Skorodumov, G.V.Rogachev, P.Boutachkov, A.Aprahamian, V.Z.Goldberg, A.Mukhamedzhanov, S.Almaraz, H.Amro, F.D.Becchetti, S.Brown, Y.Chen, H.Jiang, J.J.Kolata, L.O.Lamm, M.Quinn, A.Woehr Lowest excited states of 13O NUCLEAR REACTIONS 1H(12N, p), E(cm)=0.8-2.7 MeV; measured Ep, excitation functions for elastic scattering. 13O deduced resonance energies, J, π, widths. 12N(p, γ), E=low; calculated astrophysical reaction rates. R-matrix calculations.
doi: 10.1103/PhysRevC.75.024607
2007ZI03 Nucl.Instrum.Methods Phys.Res. A579, 476 (2007) J.A.Zimmerman, F.D.Becchetti, H.C.Griffin, D.A.Roberts, M.Y.Lee, T.W.O'Donnell, J.A.Brown, R.M.Ronningen, T.Glasmacher, R.W.Ibbotson, H.Scheit, B.Pritychenko, D.W.Anthony, P.A.Lofy, M.Steiner Nuclear reactions with radioactive, isomer beams: Coulomb excitation of 18Fg.s and its Jπ = 5+ isomer 18Fm using a large position-sensitive NaI array NUCLEAR REACTIONS 12C(17O, 18F)11B, E=45 MeV/nucleon; measured Eγ, Iγ. 18F deduced B(E1), B(E2).
doi: 10.1016/j.nima.2007.04.124
2006WA18 Phys.Rev. C 74, 014605 (2006) R.E.Warner, F.Carstoiu, J.A.Brown, F.D.Becchetti, D.A.Roberts, B.Davids, A.Galonsky, R.M.Ronningen, M.Steiner, M.Horoi, J.J.Kolata, A.Nadasen, C.Samanta, J.Schwarzenberg, K.Subotic Reaction and proton-removal cross sections of 6Li, 7Be, 10B, 9, 10, 11C, 12N, 13, 15O, and 17Ne on Si at 15 to 53 MeV/nucleon NUCLEAR REACTIONS Si(6Li, X), (7Be, X), (10B, X), (9C, X), (10C, X), (11C, X), (12N, X), (13O, X), (15O, X), (17Ne, X), E=15-53 MeV/nucleon; measured reaction and proton-removal σ. 6Li, 7Be, 10B, 9,10,11C, 12N, 13,15O, 17Ne deduced radii. Comparison with Glauber model predictions.
doi: 10.1103/PhysRevC.74.014605
2005BE38 Phys.Rev. C 71, 054610 (2005) F.D.Becchetti, R.S.Raymond, D.A.Roberts, J.Lucido, P.A.DeYoung, B.Hilldore, J.Bychowski, A.J.Huisman, P.J.VanWylen, J.J.Kolata, G.Rogachev, J.D.Hinnefeld The (8Li, α) reaction at low energy: Direct 4H cluster transfer? NUCLEAR REACTIONS C, 27Al, 208Pb(8Li, α), E=27.7 MeV; measured Eα, σ(θ); deduced reaction mechanism features.
doi: 10.1103/PhysRevC.71.054610
2005BO36 Phys.Rev.Lett. 95, 132502 (2005) P.Boutachkov, G.V.Rogachev, V.Z.Goldberg, A.Aprahamian, F.D.Becchetti, J.P.Bychowski, Y.Chen, G.Chubarian, P.A.DeYoung, J.J.Kolata, L.O.Lamm, G.F.Peaslee, M.Quinn, B.B.Skorodumov, A.Wohr Doppler Shift as a Tool for Studies of Isobaric Analog States of Neutron-Rich Nuclei: Application to 7He NUCLEAR REACTIONS 1H(6He, γ), E < 24 MeV; measured Eγ, Iγ; deduced IAS formation σ, σ(θ). 7Li deduced resonance parameters. Doppler-shift analysis technique.
doi: 10.1103/PhysRevLett.95.132502
2005BO49 Eur.Phys.J. A 25, Supplement 1, 259 (2005) P.Boutachkov, G.V.Rogachev, V.Z.Goldberg, A.Aprahamian, F.D.Becchetti, J.P.Bychowski, Y.Chen, G.Chubarian, P.A.DeYoung, J.J.Kolata, L.O.Lamm, G.F.Peaslee, M.Quinn, B.B.Skorodumov, A.Wohr Isobaric analog states of neutron-rich nuclei. Doppler shift as a measurement tool for resonance excitation functions NUCLEAR REACTIONS 1H(6He, n), E not given; measured Doppler-shifted Eγ, Iγ. 7Li deduced resonance features, IAS.
doi: 10.1140/epjad/i2005-06-014-4
2005DE16 Phys.Rev. C 71, 051601 (2005) P.A.DeYoung, P.J.Mears, J.J.Kolata, E.F.Aguilera, F.D.Becchetti, Y.Chen, M.Cloughesy, H.Griffin, C.Guess, J.D.Hinnefeld, H.Jiang, S.R.Jones, U.Khadka, D.Lizcano, E.Martinez-Quiroz, M.Ojaniega, G.F.Peaslee, A.Pena, J.Rieth, S.VanDenDriessche, J.A.Zimmerman Two-neutron transfer in the 6He + 209Bi reaction near the Coulomb barrier NUCLEAR REACTIONS 209Bi(6He, α), (6He, nα), E=23.1 MeV; measured Eα, Eν, nα-coin, angular distributions following residual nucleus decay; deduced two-neutron transfer σ.
doi: 10.1103/PhysRevC.71.051601
2005RO37 Nucl.Instrum.Methods Phys.Res. B241, 977 (2005) G.V.Rogachev, A.A.Aprahamian, F.D.Becchetti, P.Boutachkov, Y.Chen, G.Chubarian, P.A.DeYoung, A.Fomichev, V.Z.Goldberg, M.S.Golovkov, J.J.Kolata, Yu.Ts.Oganessian, G.F.Peaslee, M.Quinn, A.Rodin, B.B.Skorodumov, R.S.Slepnev, G.Ter-Akopian, W.H.Trzaska, A.Wohr, R.Wolski Isobaric analog states as a tool for spectroscopy of exotic nuclei NUCLEAR REACTIONS 1H(8He, 8He), E not given; measured recoil proton spectrum; deduced excitation function. 1H(6He, 6Li), E not given; measured neutron spectrum, nγ-coin; deduced excitation function. 7,9Li deduced resonance parameters. 7,9He deduced analog states features.
doi: 10.1016/j.nimb.2005.07.157
2004BY03 Phys.Lett. B 596, 26 (2004) J.P.Bychowski, P.A.DeYoung, B.B.Hilldore, J.D.Hinnefeld, A.Vida, F.D.Becchetti, J.Lupton, T.W.O'Donnell, J.J.Kolata, G.Rogachev, M.Hencheck 209Bi(6He, α) reaction mechanisms studied near the Coulomb barrier using n-α coincidence measurements NUCLEAR REACTIONS 209Bi(6He, αX), E=22.9 MeV; measured Eα, En, nα-coin, angular distributions; deduced single-neutron transfer contribution.
doi: 10.1016/j.physletb.2004.05.058
2004KO22 Phys.Rev. C 69, 047601 (2004) J.J.Kolata, E.F.Aguilera, F.D.Becchetti, Y.Chen, P.A.DeYoung, H.Garcia-Martinez, J.D.Hinnefeld, J.H.Lupton, E.Martinez-Quiroz, G.Peaslee Elastic scattering of 10Be on 208Pb near the Coulomb barrier NUCLEAR REACTIONS 208Pb(10Be, 10Be), E=38.4-43.9; measured σ(θ); deduced optical model parameters, total reaction σ. Comparison with previous results.
doi: 10.1103/PhysRevC.69.047601
2004RO20 Phys.Rev.Lett. 92, 232502 (2004) G.V.Rogachev, P.Boutachkov, A.Aprahamian, F.D.Becchetti, J.P.Bychowski, Y.Chen, G.Chubarian, P.A.DeYoung, V.Z.Goldberg, J.J.Kolata, L.O.Lamm, G.F.Peaslee, M.Quinn, B.B.Skorodumov, A.Wohr Analog States of 7He Observed via the 6He(p, n) Reaction NUCLEAR REACTIONS 1H(6He, n), E=24 MeV; measured En, Eγ, nγ-coin; deduced excitation function. 7Li deduced levels, J, π, analog states. 7He deduced IAR features.
doi: 10.1103/PhysRevLett.92.232502
2004RO42 Nucl.Phys. A746, 229c (2004) G.V.Rogachev, A.Aprahamian, F.D.Becchetti, P.Boutachkov, Y.Chen, G.Chubarian, P.A.DeYoung, A.Fomichev, V.Z.Goldberg, M.S.Golovkov, J.J.Kolata, Yu.Ts.Oganessian, G.F.Peaslee, M.Quinn, A.Rodin, B.B.Skorodumov, R.S.Slepnev, G.Ter-Akopian, W.H.Trzaska, A.Wohr, R.Wolski Structure of exotic 7He and 9He NUCLEAR REACTIONS 1H(6He, n), E(cm) ≈ 1-3.3 MeV; 1H(8He, 8He), E* ≈ 15-20 MeV; measured σ(θ), excitation functions. 7,9Li, 7,9He deduced IAS features.
doi: 10.1016/j.nuclphysa.2004.09.036
2004WA06 Phys.Rev. C 69, 024612 (2004) R.E.Warner, F.D.Becchetti, J.A.Brown, A.Galonsky, J.H.Kelley, A.Nadasen, R.M.Ronningen, J.A.Tostevin, J.S.Winfield, P.Zecher Proton removal from 8B, 9C, and 12C on Si at 20-70 MeV/nucleon NUCLEAR REACTIONS Si(8B, 7BeX), (9C, 8BX), (9C, 7BeX), (12C, 11BX), E=20-70 MeV/nucleon; measured one- and two-proton removal σ; deduced quenching factors. Shell model calculations, eikonal reaction theory.
doi: 10.1103/PhysRevC.69.024612
2003BE38 Nucl.Instrum.Methods Phys.Res. A505, 377 (2003) F.D.Becchetti, M.Y.Lee, T.W.O'Donnell, D.A.Roberts, J.J.Kolata, L.O.Lamm, G.Rogachev, V.Guimaraes, P.A.DeYoung, S.Vincent The TwinSol low-energy radioactive nuclear beam apparatus: status and recent results NUCLEAR REACTIONS Pb(8Li, 8Li), (8Li, 8Li'), E=20-36 MeV; measured σ(E). 8Li deduced transition B(E2). 1H(7Be, 7Be), E=low; measured excitation function.
doi: 10.1016/S0168-9002(03)01101-X
2003GU22 Nucl.Phys. A722, 341c (2003) V.Guimaraes, R.Kuramoto, R.Lichtenthaler, G.Amadio, E.Benjamin, P.N.de Faria, A.Lepine-Szily, G.F.Lima, J.J.Kolata, G.Rogachev, F.D.Becchetti, T.O'Donnell, Y.Chen, J.Hinnefeld, J.Lapton Searching for resonances in the unbound 6Be and 5Li nuclei NUCLEAR REACTIONS 3He(7Li, α), E=31 MeV; 2H(8B, α), E=28.6 MeV; 2H(7Be, α), E=20.9 MeV; measured Eα, angular distributions. 6Li, 6Be; deduced resonance features.
doi: 10.1016/S0375-9474(03)01387-3
2003RO13 Phys.Rev. C 68, 024602 (2003) G.V.Rogachev, J.J.Kolata, V.Z.Goldberg, L.V.Grigorenko, F.D.Becchetti, P.A.DeYoung, J.D.Hinnefeld, L.O.Lamm, J.Lupton, T.W.O'Donnell, D.A.Roberts, S.Shaheen Final state interaction or a 3H excited state? NUCLEAR REACTIONS 1H(6He, α), E=23.9 MeV; measured Eα, Iα; deduced resonance structure, possible three-body final-state interaction. 3H deduced possible excited state.
doi: 10.1103/PhysRevC.68.024602
2002KO25 Phys.Rev. C65, 054616 (2002) J.J.Kolata, V.Z.Goldberg, L.O.Lamm, M.G.Marino, C.J.O'Keeffe, G.Rogachev, E.F.Aguilera, H.Garcia-Martinez, E.Martinez-Quiroz, P.Rosales, F.D.Becchetti, T.W.O'Donnell, D.A.Roberts, J.A.Brown, P.A.DeYoung, J.D.Hinnefeld, S.A.Shaheen Elastic Scattering and Transfer in the 8Li + 209Pb System Near the Coulomb Barrier NUCLEAR REACTIONS 208Pb(8Li, 8Li), (8Li, 7LiX), (8Li, αX), E(cm)=24-33 MeV; measured particle spectra, σ(θ); deduced total reaction σ, interaction barrier. Comparison with similar reactions.
doi: 10.1103/PhysRevC.65.054616
2002RO14 Phys.Rev. C65, 044605 (2002) D.A.Roberts, F.D.Becchetti, J.Janecke, M.Y.Lee, T.W.O'Donnell, K.Pham, J.A.Brown, R.E.Warner, R.M.Ronningen, H.W.Wilschut Energy Dependence of the Total Reaction Cross Section of Isomeric 18Fm on Silicon below 400 MeV NUCLEAR REACTIONS Si(18F, X), E < 400 MeV; measured reaction σ for metastable beam. Si(18F, X), (16O, X), (14N, X), E < 400 MeV; measured reaction σ. RADIOACTIVITY 18mF(IT) [from 12C(17O, 11B)]; measured Eγ, Iγ.
doi: 10.1103/PhysRevC.65.044605
2002VI08 Nucl.Instrum.Methods Phys.Res. A491, 426 (2002) S.M.Vincent, A.Aprahamian, J.J.Kolata, L.O.Lamm, V.Guimaraes, R.C.deHaan, D.Peterson, P.Santi, A.Teymurazyan, F.D.Becchetti, T.W.O'Donnell, M.Lee, D.A.Roberts, J.A.Zimmerman, J.A.Brown Gamma-ray spectroscopy with a low-energy 6He radioactive ion beam NUCLEAR REACTIONS 63Cu(6He, 2np), E=28 MeV; measured Eγ, Iγ, γγ-coin; deduced σ. 66Zn deduced levels, J, π.
doi: 10.1016/S0168-9002(02)01272-X
2002VO01 Phys.Rev.Lett. 88, 012501 (2002) P.A.Voytas, C.Ternovan, M.Galeazzi, D.McCammon, J.J.Kolata, P.Santi, D.Peterson, V.Guimaraes, F.D.Becchetti, M.Y.Lee, T.W.O'Donnell, D.A.Roberts, S.Shaheen Direct Measurement of the L/K Ratio in 7Be Electron Capture RADIOACTIVITY 7Be(EC) [from 3He(6Li, 7Be)]; measured X-ray spectra; deduced L/K capture ratio, possible in-medium effects. Cryogenic microcalorimeter.
doi: 10.1103/PhysRevLett.88.012501
2001AG06 Phys.Rev. C63, 061603 (2001) E.F.Aguilera, J.J.Kolata, F.D.Becchetti, P.A.DeYoung, J.D.Hinnefeld, A.Horvath, L.O.Lamm, H.-Y.Lee, D.Lizcano, E.Martinez-Quiroz, P.Mohr, T.W.O'Donnell, D.A.Roberts, G.Rogachev Elastic Scattering and Transfer in the 6He + 209Bi System below the Coulomb Barrier NUCLEAR REACTIONS 209Bi(6He, X), E(cm)=14.3-21.4 MeV; measured reaction σ. 209Bi(6He, 6He), (6He, αX), E(cm)=14.3-21.4 MeV; measured σ(θ); deduced optical model parameters.
doi: 10.1103/PhysRevC.63.061603
2001KO02 Phys.Rev. C63, 024616 (2001) J.J.Kolata, V.Guimaraes, D.Peterson, P.Santi, R.H.White-Stevens, S.M.Vincent, F.D.Becchetti, M.Y.Lee, T.W.O'Donnell, D.A.Roberts, J.A.Zimmerman Breakup of 8B at Sub-Coulomb Energies NUCLEAR REACTIONS 58Ni(8B, p7Be), E=25.75 MeV; measured σ(E, θ); deduced reaction mechanism features. Comparison with coupled-channels calculations.
doi: 10.1103/PhysRevC.63.024616
2001RO32 Phys.Rev. C64, 061601 (2001) G.V.Rogachev, J.J.Kolata, F.D.Becchetti, P.A.DeYoung, M.Hencheck, K.Helland, J.D.Hinnefeld, B.Hughey, P.L.Jolivette, L.M.Kiessel, H.-Y.Lee, M.Y.Lee, T.W.O'Donnell, G.F.Peaslee, D.Peterson, D.A.Roberts, P.Santi, S.A.Shaheen Proton Elastic Scattering from 7Be at Low Energies NUCLEAR REACTIONS 1H(7Be, 7Be), E < 25.5 MeV; measured back-angle recoil proton spectra, σ(θ). 7Be(p, p), E=1-3.3 MeV; deduced excitation function. 8B deduced levels, J, π. Predicted 1+ state in 8B not found, astrophysical implication discussed. Thick target technique.
doi: 10.1103/PhysRevC.64.061601
2001WA40 Phys.Rev. C64, 044611 (2001) R.E.Warner, M.H.McKinnon, J.S.Needleman, N.C.Shaner, F.D.Becchetti, D.A.Roberts, A.Galonsky, R.M.Ronningen, M.Steiner, J.A.Brown, J.J.Kolata, A.Nadasen, K.Subotic Total Reaction and Neutron-Removal Cross Sections of (30-60)A MeV Be Isotopes on Si and Pb NUCLEAR REACTIONS Si(7Be, X), (9Be, X), (10Be, X), (11Be, X), (12Be, X), (14Be, X), Pb(10Be, X), (11Be, X), (12Be, X), E=30-60 MeV/nucleon; measured reaction σ, neutron-removal σ. 7,9,10,11,12,14Be deduced radii. Glauber model calculations.
doi: 10.1103/PhysRevC.64.044611
2000AG03 Phys.Rev.Lett. 84, 5058 (2000) E.F.Aguilera, J.J.Kolata, F.M.Nunes, F.D.Becchetti, P.A.DeYoung, M.Goupell, V.Guimaraes, B.Hughey, M.Y.Lee, D.Lizcano, E.Martinez-Quiroz, A.Nowlin, T.W.O'Donnell, G.F.Peaslee, D.Peterson, P.Santi, R.White-Stevens Transfer and/or Breakup Modes in the 6He + 209Bi Reaction Near the Coulomb Barrier NUCLEAR REACTIONS 209Bi(6He, X), E=19.0, 22.5 MeV; measured light fragments energy spectra, σ(θ); deduced reaction mechanism features, mechanism for sub-barrier fusion enhancement.
doi: 10.1103/PhysRevLett.84.5058
2000DE48 Phys.Rev. C62, 047601 (2000) P.A.DeYoung, B.Atallah, B.Hughey, P.L.Jolivette, M.Kern, G.F.Peaslee, V.Guimaraes, J.J.Kolata, D.Peterson, P.Santi, R.White-Stevens, E.F.Aguilera, E.Martinez-Quiroz, F.D.Becchetti, M.Y.Lee, J.A.Zimmerman, J.D.Hinnefeld, O.A.Capurro Angular Momentum in the 6He + 209Bi Reaction Deduced from Isomer Ratio Measurements NUCLEAR REACTIONS 209Bi(6He, 3n), E(cm)=18-27 MeV; measured isomer production ratio; deduced compound nucleus spin distribution features.
doi: 10.1103/PhysRevC.62.047601
2000GU05 Phys.Rev.Lett. 84, 1862 (2000) V.Guimaraes, J.J.Kolata, D.Peterson, P.Santi, R.H.White-Stevens, S.M.Vincent, F.D.Becchetti, M.Y.Lee, T.W.O'Donnell, D.A.Roberts, J.A.Zimmerman Nuclear and Coulomb Interaction in 8B Breakup at Sub-Coulomb Energies NUCLEAR REACTIONS 58Ni(8B, p7Be), E=25.75 MeV; measured σ(θ); deduced continuum coupling effects. 8B deduced exotic proton halo structure. Several theoretical models considered.
doi: 10.1103/PhysRevLett.84.1862
2000WA23 Phys.Rev. C62, 024608 (2000) R.E.Warner, M.H.McKinnon, N.C.Shaner, F.D.Becchetti, A.Nadasen, D.A.Roberts, J.A.Brown, A.Galonsky, J.J.Kolata, R.M.Ronningen, M.Steiner, K.Subotic Total Reaction and Neutron-Removal Cross Sections of (30-60)A MeV He and Li Isotopes on Pb NUCLEAR REACTIONS Pb(α, X), (6He, X), (8He, X), (6Li, X), (7Li, X), (8Li, X), (9Li, X), (11Li, X), E=30-60 MeV/nucleon; measured total σ. Pb(11Li, 9Li), (6He, α), (8He, α), (8He, 6He), E=30-60 MeV/nucleon; measured neutron-removal σ; deduced role of electromagnetic dissociation. Microscopic model calculations. Secondary beams from 18O fragmentation.
doi: 10.1103/PhysRevC.62.024608
1999OD02 Nucl.Instrum.Methods Phys.Res. A422, 513 (1999) T.W.O'Donnell, F.D.Becchetti, J.Brown, J.W.Janecke, M.Y.Lee, R.S.Raymond, D.A.Roberts, R.S.Tickle, H.C.Griffin, R.M.Ronningen Isotope Yields with a Solenoid-Based Fragment Mass Analysis System - Prospects for Exotic Isotope Studies in the 10 ≤ Z ≤ 30 Range NUCLEAR REACTIONS C(136Xe, X), E=30 MeV/nucleon; measured Z=24-29 fragments isotopic yields. Production of neutron-rich nuclides for structure studies.
doi: 10.1016/S0168-9002(98)01077-8
1998KO01 Phys.Rev. C57, R6 (1998) J.J.Kolata, V.Guimaraes, D.Peterson, P.Santi, R.White-Stevens, J.von Schwarzenberg, J.D.Hinnefeld, E.F.Aguilera, E.Martinez-Quiroz, D.A.Roberts, F.D.Becchetti, M.Y.Lee, R.A.Kryger 6He + 209Bi Fusion-Fission Reaction NUCLEAR REACTIONS 209Bi(6He, F), E≈32 MeV; measured fission σ; deduced no evidence for transfer fission contribution.
doi: 10.1103/PhysRevC.57.R6
1998KO57 Phys.Rev.Lett. 81, 4580 (1998) J.J.Kolata, V.Guimaraes, D.Peterson, P.Santi, R.White-Stevens, P.A.DeYoung, G.F.Peaslee, B.Hughey, B.Atalla, M.Kern, P.L.Jolivette, J.A.Zimmerman, M.Y.Lee, F.D.Becchetti, E.F.Aguilera, E.Martinez-Quiroz, J.D.Hinnefeld Sub-Barrier Fusion of 6He with 209Bi NUCLEAR REACTIONS 209Bi(6He, 3n), E(cm) ≈ 19-27 MeV; measured σ; deduced fusion σ, sub-barrier enhancement.
doi: 10.1103/PhysRevLett.81.4580
1998WA16 Nucl.Phys. A635, 292 (1998) R.E.Warner, H.Thirumurthy, J.Woodroffe, F.D.Becchetti, J.A.Brown, B.S.Davids, A.Galonsky, J.J.Kolata, J.J.Kruse, M.Y.Lee, A.Nadasen, T.W.O'Donnell, D.A.Roberts, R.M.Ronningen, C.Samanta, P.Schwandt, J.von Schwarzenberg, M.Steiner, K.Subotic, J.Wang, J.A.Zimmerman Reaction Cross Sections in Si of Light Proton-Halo Candidates 12N and 17Ne NUCLEAR REACTIONS Si(12N, X), (15O, X), (17Ne, X), E=29-53 MeV/nucleon; measured total reaction σ, charge-removal σ; deduced dependence on proton separation energy. Radioactive beams, Glauber model, proton-halo nuclei.
doi: 10.1016/S0375-9474(98)00163-8
1996WA27 Phys.Rev. C54, 1700 (1996) R.E.Warner, R.A.Patty, P.M.Voyles, A.Nadasen, F.D.Becchetti, J.A.Brown, H.Esbensen, A.Galonsky, J.J.Kolata, J.Kruse, M.Y.Lee, R.M.Ronningen, P.Schwandt, J.von Schwarzenberg, B.M.Sherrill, K.Subotic, J.Wang, P.Zecher Total Reaction and 2n-Removal Cross Sections of 20-60A MeV 4,6,8He, 6-9,11Li, and 10Be on Si NUCLEAR REACTIONS, ICPND Si(6Li, X), (7Li, X), (8Li, X), (9Li, X), (11Li, X), (10Be, X), (α, X), (6He, X), (8He, X), E=20-60 MeV/nucleon; measured reaction σ, 2n-removal σ for some projectiles. 4,6,8He, 6,7,8,9,11Li, 10Be deduced matter distributions. Microscopic, strong absorption optical models.
doi: 10.1103/PhysRevC.54.1700
1995BA06 Nucl.Phys. A584, 315 (1995) M.J.Balbes, M.M.Farrell, R.N.Boyd, X.Gu, M.Hencheck, J.D.Kalen, C.A.Mitchell, J.J.Kolata, K.Lamkin, R.Smith, R.Tighe, K.Ashktorab, F.D.Becchetti, J.Brown, D.Roberts, T.-F.Wang, D.Humphrey, G.Vourvopoulos, M.S.Islam Cross Sections and Reaction Rates of d + 8Li Reactions Involved in Big Bang Nucleosynthesis NUCLEAR REACTIONS 2H(8Li, 7Li), (8Li, 9Be), (8Li, 9Li), E=8-14 MeV; measured σ(E, θ); deduced reaction rates.
doi: 10.1016/0375-9474(94)00484-5
1995BE32 Phys.Rev. C52, 1142 (1995) Reply to ' Comment on ' 4H Clustering in Lithium Nuclei ' ' NUCLEAR REACTIONS 12C(8Li, α), E=14 MeV; analyzed data analyses; deduced 4H clustering related features.
doi: 10.1103/PhysRevC.52.1142
1995BR05 Phys.Rev. C51, 1312 (1995) J.A.Brown, F.D.Becchetti, J.Janecke, D.A.Roberts, D.W.Litzenberg, T.W.O'Donnell, R.E.Warner, N.A.Orr, R.M.Ronningen Proton Scattering from an Excited Nucleus (18mF, J(π) = 5+, E(α) = 1.1 MeV) Using a γ-Ray-Tagged Secondary Isomeric Nuclear Beam NUCLEAR REACTIONS 18F(p, p), E(cm) ≈ 20 MeV; measured Eγ, Iγ, target in isomeric state, σ(θ). Secondary isomeric beam, γ-ray tagging.
doi: 10.1103/PhysRevC.51.1312
1995GU02 Phys.Lett. 343B, 31 (1995) X.Gu, R.N.Boyd, M.M.Farrell, J.D.Kalen, C.A.Mitchell, J.J.Kolata, M.Belbot, K.Lamkin, K.Ashktorab, F.D.Becchetti, J.Brown, D.Roberts, K.Kimura, I.Tanihata, K.Yoshida, M.S.Islam The 8Li(α, n)11B Reaction and Primordial Nucleosynthesis NUCLEAR REACTIONS, ICPND 4He(8Li, n), E(cm)=0.64-2.2 MeV; measured σ(E), astrophysical factor vs E.
doi: 10.1016/0370-2693(94)01480-Z
1995NA16 Phys.Rev. C52, 1894 (1995) A.Nadasen, J.Brusoe, J.Farhat, T.Stevens, J.Williams, L.Nieman, J.S.Winfield, R.E.Warner, F.D.Becchetti, J.W.Janecke, T.Annakkage, J.Bajema, D.Roberts, H.S.Govinden Unique Potentials for the Elastic Scattering of 350 MeV 7Li from 12C and 28Si NUCLEAR REACTIONS 12C, 28Si(7Li, 7Li), E=350 MeV; measured σ(θ); deduced optical model parameters. Double-folding calculations.
doi: 10.1103/PhysRevC.52.1894
1995RO14 Nucl.Phys. A588, 247c (1995) D.A.Roberts, F.D.Becchetti, J.A.Brown, J.Janecke, K.Pham, T.W.O'Donnell, R.E.Warner, R.M.Ronningen, H.W.Wilschut Unusual Energy Dependence of the Total Nuclear Reaction Cross Section for a Secondary Isomeric Nuclear Beam (18mF, Jπ = 5+, E(x) = 1.1 MeV) NUCLEAR REACTIONS Si(18F, X), E=22.3 MeV/nucleon; measured total reaction σ, projectile in ground, isomeric states; deduced unusual features for σ obtained from 18mF beam. Secondary 18,18mF beam from 12C(17O, 18F) reaction.
doi: 10.1016/0375-9474(95)00147-S
1995RO20 Phys.Rev. C52, 1361 (1995) D.A.Roberts, K.Ashktorab, F.D.Becchetti, J.Janecke, M.N.Harakeh, S.Y.van der Werf, G.P.A.Berg, C.C.Foster, J.E.Lisantti, T.Rinckel, E.J.Stephenson, S.P.Wells, A.Nadasen, S.Shaheen Neutron Decay from the Isobaric Analog State in 120Sb Populated in 120Sn(3He, t)120Sb at E(3He) = 200 MeV, θ = 0° NUCLEAR REACTIONS 120Sn(3He, t), (3He, nt), E=200 MeV; measured σ(Et, θ=0°), nt-coin. 120Sb deduced IAS spreading width.
doi: 10.1103/PhysRevC.52.1361
1995WA01 Phys.Rev. C51, 178 (1995) R.E.Warner, F.D.Becchetti, J.W.Janecke, D.A.Roberts, D.Butts, C.L.Carpenter, J.M.Fetter, A.Muthukrishnan, J.J.Kolata, K.Lamkin, M.Belbot, M.Zahar, A.Galonsky, K.Ieki, P.Zecher Elastic Scattering of 10 MeV 6He from 12C, (nat)Ni, and 197Au NUCLEAR REACTIONS 12C, Ni, 197Au(6He, 6He), E=10 MeV; measured σ(θ). Optical model analysis.
doi: 10.1103/PhysRevC.51.178
1995WA19 Phys.Rev. C52, R1166 (1995) R.E.Warner, J.H.Kelley, P.Zecher, F.D.Becchetti, J.A.Brown, C.L.Carpenter, A.Galonsky, J.Kruse, A.Muthukrishnan, A.Nadasen, R.M.Ronningen, P.Schwandt, B.M.Sherrill, J.Wang, J.S.Winfield Evidence for a Proton Halo in 8B: Enhanced total reaction cross sections at 20 to 60 MeV/nucleon NUCLEAR REACTIONS, ICPND Si(8B, X), (12C, X), (14N, X), E=20-60 MeV/nucleon; measured total reaction σ. 8B deduced proton halo. Si is both target and detector.
doi: 10.1103/PhysRevC.52.R1166
1994NA03 Phys.Rev. C49, 2258 (1994) A.Nadasen, J.Winfield, P.Schwandt, J.Farhat, L.Nieman, R.E.Warner, F.D.Becchetti, J.W.Janecke, N.Anantaraman Reply to ' Comment on ' Elastic Scattering of 318 MeV 6Li from 12C and 28Si: Unique phenomenological and folding-model potentials ' and the validity of the M3Y effective interaction ' NUCLEAR REACTIONS 12C(6Li, 6Li), E=35, 53 MeV/nucleon; analyzed σ(θ) analyses; deduced renormalization related features in folding model with M3Y interaction.
doi: 10.1103/PhysRevC.49.2258
1994OD04 Nucl.Instrum.Methods Phys.Res. A353, 215 (1994) T.W.O'Donnell, E.Aldredge, F.D.Becchetti, J.A.Brown, P.Conlan, J.Janecke, R.S.Raymond, D.A.Roberts, R.S.Tickle, H.C.Griffin, R.M.Ronningen A Mass Separator using a Large Solenoid ' Lens ' with Time-of-Flight and Position Sensitive Detectors NUCLEAR REACTIONS C(136Xe, X), E=30 MeV/nucleon; measured projectile fragmentation associated σ(θ), mass, charge distributions. Mass separator with large solenoid lens with tof, position sensitive detectors.
doi: 10.1016/0168-9002(94)91641-1
1993AS02 Phys.Rev. C47, 2954 (1993) K.Ashktorab, J.W.Janecke, F.D.Becchetti, D.A.Roberts Beta Decay of 187Re and Cosmochronology RADIOACTIVITY 187Re(β-); measured β-spectrum, end-point energy, continuum decay partial T1/2; deduced branching ratio for decay to 187Os bound states. Cosmochronology implications.
doi: 10.1103/PhysRevC.47.2954
1993BA57 Phys.Rev.Lett. 71, 3931 (1993) M.J.Balbes, M.M.Farrell, R.N.Boyd, X.Gu, M.Hencheck, J.D.Kalen, C.A.Mitchell, J.J.Kolata, K.Lamkin, R.Smith, R.Tighe, K.Ashktorab, F.D.Becchetti, J.Brown, D.Roberts, T.-F.Wang, D.Humphrey, G.Vourvopoulos, M.S.Islam 2H Induced Reactions on 8Li and Primordial Nucleosynthesis NUCLEAR REACTIONS, ICPND 2H(8Li, 7Li), (8Li, 8Be), E(cm)=2.4 MeV; 8Li(d, t), (d, n), E(cm)=1.5-2.75 MeV; measured σ(E); deduced primordial nucleosynthesis yields.
doi: 10.1103/PhysRevLett.71.3931
1993BE22 Phys.Rev. C48, 308 (1993) F.D.Becchetti, W.Z.Liu, K.Ashktorab, J.F.Bajema, J.A.Brown, J.W.Janecke, D.A.Roberts, J.J.Kolata, K.L.Lamkin, A.Morsad, R.J.Smith, X.J.Kong, R.E.Warner Systematics of 8Li-Induced Radioactive Beam Reactions: E = 13-20 MeV NUCLEAR REACTIONS 2H, 9Be, 13,12C, 14N, 27Al, 58Ni(8Li, 7Li), (8Li, 8Li), E ≈ 13-20 MeV; 9Be, 12C(8Li, α), E ≈ 13-20 MeV; measured σ(θ).
doi: 10.1103/PhysRevC.48.308
1993CA04 Phys.Rev. C47, 387 (1993) D.D.Caussyn, N.R.Fletcher, K.W.Kemper, E.E.Towers, J.J.Kolata, K.Lamkin, R.J.Smith, F.D.Becchetti, J.A.Brown, J.W.Janecke, D.A.Roberts, D.L.Gay Cross Section for the Primordial Reaction 8Li(p, n)8Be(g.s.) at E(cm) = 1.5 MeV NUCLEAR REACTIONS 8Li(p, n), E(cm)=1.5 MeV; measured σ(θ); deduced σ. Hauser-Feshbach calculation.
doi: 10.1103/PhysRevC.47.387
1993NA01 Phys.Rev. C47, 674 (1993) A.Nadasen, T.Stevens, J.Farhat, J.Brusoe, P.Schwandt, J.S.Winfield, G.Yoo, N.Anantaraman, F.D.Becchetti, D.Brown, D.Hotz, J.W.Janecke, D.Roberts, R.E.Warner Elastic Scattering of 318 MeV 6Li from 12C and 28Si: Unique phenomenological and folding-model potentials NUCLEAR REACTIONS 12C, 28Si(6Li, 6Li), E=318 MeV; measured σ(θ). Phenomenological, folding model potentials interpretation.
doi: 10.1103/PhysRevC.47.674
1992BE46 Nucl.Phys. A550, 507 (1992) F.D.Becchetti, J.A.Brown, W.Z.Liu, J.W.Janecke, D.A.Roberts, J.J.Kolata, R.J.Smith, K.Lamkin, A.Morsad, R.E.Warner, R.N.Boyd, J.D.Kalen Reaction Rates for 8Li(p, α) and 8Li(p, n, α) and Their Effect on Primordial Nucleosynthesis NUCLEAR REACTIONS 1H(8Li, α), E(cm)=1.5 MeV; measured σ(Eα), σ(θ); deduced 8Li destruction thermonuclear reaction rate, p+8Li total reaction rate. Radioactive beam.
doi: 10.1016/0375-9474(92)90020-K
1992RO04 Phys.Rev. C45, 726 (1992) D.A.Roberts, F.D.Becchetti, J.A.Brown, J.W.Janecke, D.Shen, Z.W.Yin, A.Nadasen Light Particle Emission Near 0° in the Reaction 20Ne + 181Ta at E/A = 85 MeV NUCLEAR REACTIONS 181Ta(20Ne, X), E=85 MeV/nucleon; measured σ(fragment θ, E) for X=p, d, t, α and higher Z; deduced projectile saturation effect, reaction mechanism.
doi: 10.1103/PhysRevC.45.726
1992WA13 Nucl.Instrum.Methods Phys.Res. A314, 113 (1992) R.E.Warner, R.J.Orr, W.F.Waite, C.P.Browne, S.E.Darden, A.Rollefson, J.J.Kolata, L.Van Wormer, A.Galonsky, D.Sackett, F.D.Becchetti Measurement of the 6Li + (nat)Si Reaction Cross Section at 18 to 28 MeV with a Magnetic Spectrograph and Position-Sensitive Si Detector NUCLEAR REACTIONS, ICPND Si(6Li, X), E=18-28 MeV; measured average reaction σ. Two-dimensional position-sensitive Si detector in magnetic spectrograph focal plane.
doi: 10.1016/0168-9002(92)90503-V
1991BE49 Nucl.Instrum.Methods Phys.Res. B56/57, 554 (1991) F.D.Becchetti, J.A.Brown, K.Ashktorab, J.W.Janecke, W.Z.Liu, D.A.Roberts, R.J.Smith, J.J.Kolata, K.Lamkin, A.Morsad, R.E.Warner Production and Use of 6He, 7Be, 8Li, 12B and Metastable Nuclear Beams NUCLEAR REACTIONS 9Be(7Li, 8Li), (7Li, α), (7Li, 6He), E=17 MeV; 1H(10B, 7Be), E=23.5 MeV; 9Be(7Li, 6He), E=14.63 MeV; 1H(10B, 7Be), E=23.5 MeV; 12C(3He, 7Be), E=22.5 MeV; 10B(6Li, 7Be), E=23 MeV; 12C(17O, 18F), E=70 MeV; measured secondary beam production yields. 197Au, C, Ni(8Li, 8Li), (8Li, 8Li'), E=13.8-14.9 MeV; measured σ(E(8Li)). 197Au, Ti, 2H, 27Al, C, 9Be(6He, 6He), E=8.8-9.3 MeV; measured σ(θ). Other reactions discussed.
doi: 10.1016/0168-583X(91)96094-2
1991BR14 Phys.Rev.Lett. 66, 2452 (1991) J.A.Brown, F.D.Becchetti, J.W.Janecke, K.Ashktorab, D.A.Roberts, J.J.Kolata, R.J.Smith, K.Lamkin, R.E.Warner Coulomb Excitation of 8Li NUCLEAR REACTIONS Ni(8Li, 8Li'), (8Li, 8Li), E ≈ 14.6 MeV; measured σ(θ) following Coulomb excittion. 8Li deduced level excitation probability, B(E2).
doi: 10.1103/PhysRevLett.66.2452
1991JA04 Nucl.Phys. A526, 1 (1991) J.Janecke, F.D.Becchetti, A.M.van den Berg, G.P.A.Berg, G.Brouwer, M.B.Greenfield, M.N.Harakeh, M.A.Hofstee, A.Nadasen, D.A.Roberts, R.Sawafta, J.M.Schippers, E.J.Stephenson, D.P.Stewart, S.Y.van der Werf Non-Spin-Flip (3He, t) Charge-Exchange and Isobaric Analog States of Actinide Nuclei Studied at θ = 0°, E(3He) = 76 MeV and 200 MeV NUCLEAR REACTIONS 12C, 16O, 27Al, 28Si, Ta, 230,232Th, 234,236,238U(3He, t), E=76.5 MeV; 12,13C, 16O, 19F, 28,29Si, 90Zr, 117,120Sn, Ta, W, 197Au, 208Pb, 230,232Th, 234,238U, 244Pu(3He, t), E=200 MeV; measured σ(Et); 120Sn(3He, t), E=200 MeV; measured σ(θt) for IAS; 230,232Th, 234,236,238U(3He, tp), E=76.5 MeV; measured proton decay from IAS, σ(Et, Ep, θt, θp); deduced Q-values for transitions to IAS. 90Nb, 117Sb, 120Sn, 181W, 184Re, 197Hg, 208Pb, 230,232Pa, 234,236,238Np, 244Am deduced Coulomb displacement energies, total widths Γ, escape widths, spreading widths of IAS. Non-spin-flip charge exchange effective interaction. Enriched and long-lived radioactive targets, magnetic spectrometers.
doi: 10.1016/0375-9474(91)90295-H
1991SM01 Phys.Rev. C43, 761 (1991) R.J.Smith, J.J.Kolata, K.Lamkin, A.Morsad, K.Ashktorab, F.D.Becchetti, J.A.Brown, J.W.Janecke, W.Z.Liu, D.A.Roberts Scattering of 6He from 197Au, (nat)Ti, 27Al, (nat)C, and 9Be at E = 8-9 MeV NUCLEAR REACTIONS 197Au, Ti, 27Al, C(6He, 6He), E=8.8-9.3 MeV; measured σ(θ); deduced model parameters. Beam from 9Be(7Li, 6He) reaction.
doi: 10.1103/PhysRevC.43.761
1991SM02 Phys.Rev. C43, 2346 (1991) R.J.Smith, J.J.Kolata, K.Lamkin, A.Morsad, F.D.Becchetti, J.A.Brown, W.Z.Liu, J.W.Janecke, D.A.Roberts, R.E.Warner Elastic and Inelastic Scattering of 8Li from 12C NUCLEAR REACTIONS C, 197Au(8Li, 8Li), (8Li, 8Li'), E=14 MeV; measured σ(θ); deduced model parameters. 8Li level deduced B(E2).
doi: 10.1103/PhysRevC.43.2346
1990BE31 Phys.Rev. C42, R801 (1990) F.D.Becchetti, K.Ashktorab, J.A.Brown, J.W.Janecke, D.A.Roberts, J.van Klinken, W.Z.Liu, J.J.Kolata, K.Lamkin, R.J.Smith, R.E.Warner Production of an Isomeric, Excited Radioactive Nuclear Beam NUCLEAR REACTIONS 12C(17O, 18F), E=50-80 MeV; measured σ, production rate of 18mF.
doi: 10.1103/PhysRevC.42.R801
1990RO14 Phys.Rev. C42, R1809 (1990) D.A.Roberts, F.D.Becchetti, E.Ben-Jacob, P.Garik, J.Musser, B.Orr, G.Tarle, A.Tomasch, J.S.Holder, D.Redina, B.Heuser, G.Wicker Energy and Flux Limits of Cold-Fusion Neutrons using a Deuterated Liquid Scintillator NUCLEAR REACTIONS 2H(d, d), E=low; measured neutron spectra; deduced fusion upper limit. Deuterated liquid scintillator detectors, annealed Pd wire, Pd casting samples, n/γ discriminations.
doi: 10.1103/PhysRevC.42.R1809
1990SH25 Phys.Rev. C42, 1519 (1990) S.Shaheen, F.D.Becchetti, D.A.Roberts, J.W.Janecke, R.L.Stern, A.Nadasen Very-High-Energy Light Charged-Particle Production Near 0° in Heavy-Ion Collisions, 9 ≤ E/A ≤ 40 MeV NUCLEAR REACTIONS Ta(40Ar, X), (16O, X), E=20, 30 MeV/nucleon; measured σ(fragment θ, E); deduced reaction mechanism, model parameter dependences. Moving source model.
doi: 10.1103/PhysRevC.42.1519
1990SM04 Nucl.Instrum.Methods Phys.Res. A294, 26 (1990) R.J.Smith, J.J.Kolata, K.Lamkin, A.Morsad, K.Ashktorab, F.D.Becchetti, J.Brown, J.W.Janecke, W.Z.Liu, D.A.Roberts Production and Use of Radioactive 7Be Beams NUCLEAR REACTIONS 1H(10B, 7Be), E=23.5 MeV; 12C(3He, 7Be), E=22.5 MeV; measured σ(E(7Be)), yields. Radioactive beam production. 12C, 197Au(7Be, 7Be), E=8.5-22.4 MeV; measured σ(θ), ratio to Rutherford scattering. Radioactive beam.
doi: 10.1016/0168-9002(90)91824-U
1990WA12 Nucl.Phys. A516, 416 (1990) R.E.Warner, K.M.Berland, W.F.Rulla, D.A.Francis, J.J.Kolata, Z.Ayer, S.E.Darden, X.J.Kong, G.Liu, A.Morsad, S.McGimpsey, A.A.Rollefson, A.Galonsky, A.Nadasen, J.S.Winfield, F.D.Becchetti Total Nuclear Reaction Probabilities and Average Cross Sections for 16 to 23 MeV 6Li in Silicon NUCLEAR REACTIONS, ICPND Si(6Li, X), E=15.6, 20.3, 23 MeV; measured reaction probabilities, energy averaged total reaction σ.
doi: 10.1016/0375-9474(90)90316-E
1990WA17 Phys.Rev. C42, 2143 (1990) R.E.Warner, E.Cheung, C.F.Perdrisat, V.Punjabi, C.A.Davis, R.Helmer, A.Galonsky, L.Heilbronn, D.Krofcheck, S.E.Darden, J.J.Kolata, F.D.Becchetti, P.Schwandt Spectral Function of p-n Pairs in 6Li, from the 6Li(p, pα)pn Reaction at 200 MeV NUCLEAR REACTIONS 6Li(polarized p, pα), E=200 MeV; measured σ(θp, θα, Ep, Eα) vs (pn)-internal momentum. 6Li deduced dα-cluster probability.
doi: 10.1103/PhysRevC.42.2143
1989BE28 Phys.Rev. C40, R1104 (1989) F.D.Becchetti, W.Z.Liu, D.A.Roberts, J.W.Janecke, J.J.Kolata, A.Morsad, X.J.Kong, R.E.Warner Measurements of Discrete Nuclear Reactions Induced by a Radioactive 8Li Beam NUCLEAR REACTIONS 12C, 9Be(8Li, 7Li), E=13 MeV; measured σ(θ), σ(E(7Li)); deduced astrophysical abundance implications.
doi: 10.1103/PhysRevC.40.R1104
1989KO17 Nucl.Instrum.Methods Phys.Res. B40/41, 503 (1989) J.J.Kolata, A.Morsad, X.J.Kong, R.E.Warner, F.D.Becchetti, W.Z.Liu, D.A.Roberts, J.W.Janecke A Radioactive Beam Facility Using a Large Superconducting Solenoid NUCLEAR REACTIONS 9Be(8Li, 7Li), E=11 MeV; measured residuals spectra, σ(θ). 9Be, 197Au(8Li, 8Li), E=not given; measured σ(θ).
doi: 10.1016/0168-583X(89)91032-X
1989NA02 Phys.Rev. C39, 536 (1989) A.Nadasen, M.McMaster, M.Fingal, J.Tavormina, P.Schwandt, J.S.Winfield, M.F.Mohar, F.D.Becchetti, J.W.Janecke, R.E.Warner Unique 6Li-Nucleus Optical Potentials from Elastic Scattering of 210 MeV 6Li Ions by 28Si, 40Ca, 90Zr, and 208Pb NUCLEAR REACTIONS 28Si, 40Ca, 90Zr, 208Pb(6Li, 6Li), E=210 MeV; measured σ(θ); deduced optical model parameters, target mass and energy dependence.
doi: 10.1103/PhysRevC.39.536
1989NA11 Phys.Rev. C40, 1237 (1989) A.Nadasen, M.McMaster, M.Fingal, J.Tavormina, J.S.Winfield, R.M.Ronningen, P.Schwandt, F.D.Becchetti, J.W.Janecke, R.E.Warner Inelastic Scattering of 210 MeV 6Li Ions from 12C, 28Si, and 58Ni: Test of unique 6Li potentials NUCLEAR REACTIONS 12C, 28Si, 58Ni(6Li, 6Li'), E=210 MeV; measured σ(θ). 12C, 28Si, 58Ni level deduced deformation length, quadrupole moments. DWBA, coupled-channels analyses.
doi: 10.1103/PhysRevC.40.1237
Back to query form [Next] Note: The following list of authors and aliases matches the search parameter F.Becchetti: , F.D.BECCHETTI |