NSR Query Results
Output year order : Descending NSR database version of March 18, 2024. Search: Author = D.Frekers Found 148 matches. Showing 1 to 100. [Next]2022BA17 Phys.Rev.Lett. 128, 232501 (2022) V.V.Barinov, B.T.Cleveland, S.N.Danshin, H.Ejiri, S.R.Elliott, D.Frekers, V.N.Gavrin, V.V.Gorbachev, D.S.Gorbunov, W.C.Haxton, T.V.Ibragimova, I.Kim, Y.P.Kozlova, L.V.Kravchuk, V.V.Kuzminov, B.K.Lubsandorzhiev, Y.M.Malyshkin, R.Massarczyk, V.A.Matveev, I.N.Mirmov, J.S.Nico, A.L.Petelin, R.G.H.Robertson, D.Sinclair, A.A.Shikhin, V.A.Tarasov, G.V.Trubnikov, E.P.Veretenkin, J.F.Wilkerson, A.I.Zvir Results from the Baksan Experiment on Sterile Transitions (BEST) NUCLEAR REACTIONS 71Ga(ν, e-), E<1 MeV; measured reaction products, Eβ, Iβ; deduced the deficit of electron neutrinos observed in gallium-based radiochemical measurements with high-intensity neutrino sources, commonly referred to as the gallium anomaly. The Baksan Experiment on Sterile Transitions (BEST).
doi: 10.1103/PhysRevLett.128.232501
2022BA21 Phys.Rev. C 105, 065502 (2022) V.V.Barinov, S.N.Danshin, V.N.Gavrin, V.V.Gorbachev, D.S.Gorbunov, T.V.Ibragimova, Yu.P.Kozlova, L.V.Kravchuk, V.V.Kuzminov, B.K.Lubsandorzhiev, Yu.M.Malyshkin, I.N.Mirmov, A.A.Shikhin, E.P.Veretenkin, B.T.Cleveland, H.Ejiri, S.R.Elliott, I.Kim, R.Massarczyk, D.Frekers, W.C.Haxton, V.A.Matveev, G.V.Trubnikov, J.S.Nico, A.L.Petelin, V.A.Tarasov, A.I.Zvir, R.G.H.Robertson, D.Sinclair, J.F.Wilkerson Search for electron-neutrino transitions to sterile states in the BEST experiment NUCLEAR REACTIONS 71Ga(ν, e-), E<1 MeV; measured reaction products, Eb, Iβ; deduced 71Ge yields, deficit of electron neutrinos observed in gallium-based radiochemical measurements with high-intensity neutrino sources, commonly referred as "the gallium anomaly". The Baksan Experiment on Sterile Transitions (BEST). Neutrinos from decay of the 51Cr decay. RADIOACTIVITY 51Cr(EC); measured Eγ, Iγ, calorimetric heat; deduced T1/2.
doi: 10.1103/PhysRevC.105.065502
2020AK06 J.Phys.(London) G47, 05LT01 (2020) H.Akimune, H.Ejiri, F.Hattori, C.Agodi, M.Alanssari, F.Cappuzzello, D.Carbone, M.Cavallaro, G.Colo, F.Diel, C.A.Douma, D.Frekers, H.Fujita, Y.Fujita, M.Fujiwara, G.Gey, M.N.Harakeh, K.Hatanaka, K.Heguri, M.Holl, A.Inoue, N.Kalantar-Nayestanaki, Y.F.Niu, P.Puppe, P.C.Ries, A.Tamii, V.Werner, K.Zuber Spin-dipole nuclear matrix element for the double beta decay of 76Ge by the (3He, t) charge-exchange reaction NUCLEAR REACTIONS 74,76Ge(3He, t), E=420 MeV; measured reaction products; deduced yields, σ(θ), spin-dipole nuclear matrix elements, neutrinoless double-beta decay nuclear matrix elements.
doi: 10.1088/1361-6471/ab7a87
2020DO06 Eur.Phys.J. A 56, 51 (2020) C.A.Douma, C.Agodi, H.Akimune, M.Alanssari, F.Cappuzzello, D.Carbone, M.Cavallaro, G.Colo, F.Diel, H.Ejiri, D.Frekers, H.Fujita, Y.Fujita, M.Fujiwara, G.Gey, M.N.Harakeh, K.Hatanaka, F.Hattori, K.Heguri, M.Holl, A.Inoue, N.Kalantar-Nayestanaki, Y.F.Niu, P.Puppe, P.C.Ries, A.Tamii, V.Werner, R.G.T.Zegers, K.Zuber Gamow-Teller strength distributions of 116Sb and 122Sb using the (3He, t) charge-exchange reaction
doi: 10.1140/epja/s10050-020-00044-9
2019KA15 Eur.Phys.J. A 55, 4 (2019) D.Kahl, P.J.Woods, Y.Fujita, H.Fujita, K.Abe, T.Adachi, D.Frekers, T.Ito, N.Kikukawa, M.Nagashima, P.Puppe, D.Sera, T.Shima, Y.Shimbara, A.Tamii, J.H.Thies s-wave resonances for the 18F(p, α)15O reaction in novae NUCLEAR REACTIONS 18F(p, α)15O;19F(3He, t)19Ne, E=140 MeV/nucleon; measured Et, It(θ); deduced peaks of discrete excited states in 19Ne; deduced 19F, 19Ne levels, J, π, deduced ΔL=0 state at 6.13 MeV which could significantly affect 18F(p, α) astrophysical S-factor, suggested mirror pairs of states. Levels compared with published data. 18F(p, α), E(cm)=0-1 MeV; calculated astrophysical S-factor with different interference signs between L=0 states with possibility of changing temperatures (50-350 MK); deduced resonance parameters (energy, (α- and p-width, ANC)). S-factor compared with other calculations.
doi: 10.1140/epja/i2019-12682-9
2018FR05 Eur.Phys.J. A 54, 177 (2018) Charge-exchange reactions and the quest for resolution
doi: 10.1140/epja/i2018-12612-5
2018JO05 Phys.Rev. C 98, 024608 (2018) L.Jokiniemi, H.Ejiri, D.Frekers, J.Suhonen Neutrinoless ββ nuclear matrix elements using isovector spin-dipole Jπ = 2- data RADIOACTIVITY 76Ge, 96Zr, 100Mo, 116Cd, 128,130Te, 136Xe(2β-); calculated nuclear matrix elements 0νββ and 2νββ decay modes using realistic two-body interactions with either Woods-Saxon bases or modified Woods-Saxon bases. Comparison with previous theoretical predictions. 76Ge, 76Se, 96Zr, 96,100Mo, 100Ru, 116Cd, 116Sn, 128,130Te, 128,130,136Xe, 136Ba; calculated neutron and proton pairing gaps, 2- isovector spin-dipole resonance and 1+ Gamow-Teller giant resonance data, isovector spin-dipole 2- strength functions.
doi: 10.1103/PhysRevC.98.024608
2018MA51 Phys.Rev. C 98, 024617 (2018) A.J.Mayer, M.Wieser, M.Alanssari, D.Frekers, W.Matthews, J.Dilling, R.I.Thompson Isotope abundance measurement of the half-life of the ββ-decaying nucleus 96Zr from a 2.68 Gyr zircon sample RADIOACTIVITY 96Zr, 96Nb(β-); 96Zr(2β-); measured Mo isotopic composition of zircon sample using Thermo Scientific Neptune multicollector inductively coupled plasma mass spectrometer (MC-ICPMS) containing nine Faraday cups, a secondary-electron multiplier, and multi-ion counting (MIC) detectors. Chemical ion-exchange separation of Mo from Zr, Fe, and other elements in zircon reference material; deduced half-life of decay of 96Zr by applying modern isotope-geochemical and chemical separation techniques; estimated lower limit of half-life for β- decay mode, using previously measured half-life for 2νββ decay mode.
doi: 10.1103/PhysRevC.98.024617
2017FR02 Phys.Rev. C 95, 034619 (2017) D.Frekers, M.Alanssari, H.Ejiri, M.Holl, A.Poves, J.Suhonen Charge-exchange reactions on double-β decaying nuclei populating Jπ = 2- states NUCLEAR REACTIONS 76Ge, 82Se, 96Zr, 100Mo, 128,130Te, 136Xe(3He, t), E=420 MeV; measured E(t), I(t), σ(θ) using Grand Raiden spectrometer at RCNP-Osaka. 76As, 82Br, 96Nb, 100Tc, 128,130I, 136Cs; deduced levels, L-transfers by distorted-wave (DW) analysis of σ(θ) distributions, J, π, relative M2 transition strengths. 76Ge, 82Se, 96Zr, 100Mo, 128,130Te, 136Xe; calculated shell-model occupancies near the Fermi surface for ββ-decaying nuclei using the Interacting shell model (ISM). Comparison of transition strengths with microscopic shell model, QRPA, and semimicroscopic FSQP calculations.
doi: 10.1103/PhysRevC.95.034619
2017GA20 Phys.Rev. C 96, 024325 (2017) A.T.Gallant, M.Alanssari, J.C.Bale, C.Andreoiu, B.R.Barquest, U.Chowdhury, J.Even, A.Finlay, D.Frekers, G.Gwinner, R.Klawitter, B.Kootte, A.A.Kwiatkowski, D.Lascar, K.G.Leach, E.Leistenschneider, A.Lennarz, A.J.Mayer, D.Short, R.Thompson, M.Wieser, D.Lunney, J.Dilling Mass determination near N=20 for Al and Na isotopes ATOMIC MASSES 31,32Na, 29,34,35Al; measured cyclotron frequencies and mass excesses by time-of-flight ion-cyclotron-resonance (TOF-ICR) technique using the TITAN Penning trap mass spectrometer at ISAC-TRIUMF; deduced S(2n). Radioactive isotopes produced via the isotope separator on-line (ISOL) technique by a 480-MeV proton beam impinging on a UCx target, followed by the separation of sodium isotopes by surface ionization, and aluminum isotopes by the TRIUMF Resonant Ionization Laser Ion Source (TRILIS). Comparison with previous experimental values and mass evaluations. Systematics of S(2n) values for N=18-25 Na, Mg, and Al isotopic chains.
doi: 10.1103/PhysRevC.96.024325
2017WI16 Phys.Rev. C 96, 064309 (2017) K.Win, Y.Fujita, Y.Y.Oo, H.Fujita, Y.F.Niu, T.Adachi, G.P.A.Berg, G.Colo, H.Dohmann, M.Dozono, D.Frekers, E.-W.Grewe, K.Hatanaka, D.Ishikawa, R.Kehl, N.T.Khai, Y.Kalmykov, H.Matsubara, P.von Neumann-Cosel, T.Niizeki, T.Ruhe, Y.Shimbara, K.Suda, A.Tamii, J.Thies, H.P.Yoshida High-resolution study of Tz = +1 → 0 Gamow-Teller transitions in the 26Mg (3He, t)26Al reaction NUCLEAR REACTIONS 26Mg(3He, t), E=140 MeV/nucleon; measured triton spectra, σ(θ) using the Grand Raiden spectrometer at RCNP, Japan. 26Al; deduced levels, L-transfers, J, π, widths, analog states, Gamow-Teller transitions, B(GT) strengths. Comparison with previous experimental data, evaluated data in the ENSDF database, and with theoretical calculations using random phase approximation. Discussed isospin symmetry of T=2 Gamow-Teller states by comparing with the results of 26Mg(d, 2He), (t, 3He)26Na reactions.
doi: 10.1103/PhysRevC.96.064309
2016AL03 Phys.Rev.Lett. 116, 072501 (2016) M.Alanssari, D.Frekers, T.Eronen, L.Canete, J.Dilling, M.Haaranen, J.Hakala, M.Holl, M.Jeskovsky, A.Jokinen, A.Kankainen, J.Koponen, A.J.Mayer, I.D.Moore, D.A.Nesterenko, I.Pohjalainen, P.Povinec, J.Reinikainen, S.Rinta-Antila, P.C.Srivastava, J.Suhonen, R.I.Thompson, A.Voss, M.E.Wieser Single and Double Beta-Decay Q Values among the Triplet96Zr, 96Nb, and 96Mo ATOMIC MASSES 96Zr, 96Nb, 96Mo; measured time-of-flight spectra using a Ramsey excitation pattern, cyclotron-frequency ratios; deduced Q-values for β and 2β-decays. Comparison with AME2012, IGISOL-JYFLTRAP facility.
doi: 10.1103/PhysRevLett.116.072501
2016AL30 Int.J. Mass Spectrom. 406, 1 (2016) M.Alanssari, D.Frekers, T.Eronen, L.Canete, J.Hakala, M.Holl, A.Jokinen, A.Kankainen, J.Koponen, I.D.Moore, D.A.Nesterenko, I.Pohjalainen, J.Reinikainen, S.Rinta-Antila, A.Voss Precision 71Ga-71Ge mass-difference measurement ATOMIC MASSES 71Ga, 71Ge; measured frequencies, TOF; deduced Q-values, solar neutrino flux.
doi: 10.1016/j.ijms.2016.05.019
2016EJ02 J.Phys.(London) G43, 11LT01 (2016) Spin dipole nuclear matrix elements for double beta decay nuclei by charge-exchange reactions RADIOACTIVITY 76Ge, 82Se, 96Zr, 100Mo, 128,130Te, 136Xe(2β-); analyzed experimental data on (3He, t) charge-exchange reactions; deduced spin dipole strengths and matrix elements for double beta-decay using experimental Gamow-Teller and Fermi strengths.
doi: 10.1088/0954-3899/43/11/11LT01
2016FR06 Phys.Rev. C 94, 014614 (2016) D.Frekers, M.Alanssari, T.Adachi, B.T.Cleveland, M.Dozono, H.Ejiri, S.R.Elliott, H.Fujita, Y.Fujita, M.Fujiwara, K.Hatanaka, M.Holl, D.Ishikawa, H.Matsubara, H.Okamura, P.Puppe, K.Suda, A.Tamii, J.Thies, H.P.Yoshida High energy-resolution measurement of the 82Se(3He, t)82Br reaction for double-beta decay and for solar neutrinos NUCLEAR REACTIONS 82Se(3He, t), E=420 MeV; measured E(t), I(t), σ(θ) using Grand Raiden Spectrometer at RCNP-Osaka cyclotron facility. 82Br; deduced levels, J, π, L-transfer, IAS, 1+ states, Gamow-Teller resonance (GTR), Gamow-Teller strengths B(GT). Distorted-wave (DW) calculations to analyze σ(θ) distributions. 80Se; discussed implications for 2νββ and 0νββ decay modes, possible detector of solar neutrinos; calculated solar neutrino capture rates on 82Se as a function of excitation energy in 82Br from B(GT) values.
doi: 10.1103/PhysRevC.94.014614
2015FR02 Phys.Rev. C 91, 034608 (2015); Erratum Phys.Rev. C 100, 049901 (2019) D.Frekers, T.Adachi, H.Akimune, M.Alanssari, B.A.Brown, B.T.Cleveland, H.Ejiri, H.Fujita, Y.Fujita, M.Fujiwara, V.N.Gavrin, M.N.Harakeh, K.Hatanaka, M.Holl, C.Iwamoto, A.Lennarz, A.Okamoto, H.Okamura, T.Suzuki, A.Tamii Precision evaluation of the 71Ga (νe, e-) solar neutrino capture rate from the (3He, t) charge-exchange reaction NUCLEAR REACTIONS 71Ga(3He, t)71Ge, E=420 MeV; measured triton spectra, σ(θ) using Grand Raiden spectrometer at RCNP-Osaka facility. 71Ge; deduced levels, J, π, IAS, Gamow-Teller B(GT) transition strengths from analysis based on theoretical form factors and one-body transition densities from the shell-model code NUSHELLX with the GXPF1a interaction in full fp-model space. DWBA analysis of σ(θ) data. 71Ga(ν, e-); deduced solar neutrino capture rates as function of excitation energy in 71Ge from B(GT) values.
doi: 10.1103/PhysRevC.91.034608
2015JE02 Nucl.Instrum.Methods Phys.Res. A795, 268 (2015) M.Jeskovsky, D.Frekers, A.Kovacik, P.P.Povinec, P.Puppe, J.Stanicek, I.Sykora, F.Simkovic, J.H.Thies A search for double-electron capture of 74Se to excited levels using coincidence/anticoincidence gamma-ray spectrometry RADIOACTIVITY 74Se(2EC); measured decay products, Eγ, Iγ; deduced T1/2 limit. Comparison with available data.
doi: 10.1016/j.nima.2015.05.071
2014KW01 Hyperfine Interactions 225, 143 (2014) A.A.Kwiatkowski, C.Andreoiu, J.C.Bale, T.Brunner, A.Chaudhuri, U.Chowdhury, P.Delheij, S.Ettenauer, D.Frekers, A.T.Gallant, A.Grossheim, G.Gwinner, F.Jang, A.Lennarz, T.Ma, E.Mane, M.R.Pearson, B.E.Schultz, M.C.Simon, V.V.Simon, J.Dilling TITAN: An ion trap facility for on-line mass measurement experiments
doi: 10.1007/s10751-013-0892-8
2014LE02 Hyperfine Interactions 225, 157 (2014) A.Lennarz, T.Brunner, C.Andreoiu, A.Chaudhuri, U.Chowdhury, P.Delheij, J.Dilling, S.Ettenauer, D.Frekers, A.T.Gallant, A.Grossheim, F.Jang, A.A.Kwiatkowski, T.Ma, E.Mane, M.R.Pearson, B.E.Schultz, M.C.Simon, V.V.Simon Electron-capture branching ratio measurements of odd-odd intermediate nuclei in double-beta decay at the TITAN facility RADIOACTIVITY 116In(β-), (EC); measured decay products, Eγ, Iγ, X-rays; deduced isomers, energy levels, J, π. Comparison with available data.
doi: 10.1007/s10751-013-0893-7
2014LE20 Phys.Rev.Lett. 113, 082502 (2014) A.Lennarz, A.Grossheim, K.G.Leach, M.Alanssari, T.Brunner, A.Chaudhuri, U.Chowdhury, J.R.C.Lopez-Urrutia, A.T.Gallant, M.Holl, A.A.Kwiatkowski, J.Lassen, T.D.Macdonald, B.E.Schultz, S.Seeraji, M.C.Simon, C.Andreoiu, J.Dilling, D.Frekers In-Trap Spectroscopy of Charge-Bred Radioactive Ions RADIOACTIVITY 124In(β-), 124Cs(EC); measured decay products, Eγ, Iγ, X-rays; deduced isomer yields, T1/2, γ-ray energies, branching ratios. Electron-beam ion trap of the TITAN facility at TRIUMF.
doi: 10.1103/PhysRevLett.113.082502
2014MA21 Phys.Rev. C 89, 044318 (2014) T.D.Macdonald, B.E.Schultz, J.C.Bale, A.Chaudhuri, U.Chowdhury, D.Frekers, A.T.Gallant, A.Grossheim, A.A.Kwiatkowski, A.Lennarz, M.C.Simon, V.V.Simon, J.Dilling Precision Penning-trap measurement to investigate the role of the51Cr (e-, νe) 51V Q value in the gallium anomaly ATOMIC MASSES 51Cr, 51V; measured cyclotron-frequencies, TOF-ICR resonances using TITAN system consisting of radio frequency quadrupole (RFQ) beam cooler and buncher, an electron beam ion trap (EBIT), and a Penning trap (MPET) at ISAC-TRIUMF facility; deduced Q value for EC decay of 51Cr. Comparison with AME-2012 evaluation. Relevance to solar neutrino experiments SAGE and GALLEX. RADIOACTIVITY 51Cr(EC); measured precise Q(EC) value using TITAN system for precise mass measurements at ISAC-TRIUMF facility.
doi: 10.1103/PhysRevC.89.044318
2013BR16 Eur.Phys.J. A 49, 142 (2013) T.Brunner, A.Lapierre, C.Andreoiu, M.Brodeur, P.Delheij, S.Ettenauer, D.Frekers, A.T.Gallant, R.Gernhauser, A.Grossheim, R.Krucken, A.Lennarz, D.Lunney, D.Mucher, R.Ringle, M.C.Simon, V.V.Simon, S.K.L.Sjue, K.Zuber, J.Dilling Trapped-ion decay spectroscopy towards the determination of ground-state components of double-beta decay matrix elements RADIOACTIVITY 124,125,126Cs(EC), (β+), (IT); measured Eγ, Iγ, X-ray. Method test experiment for possible determination of 2β matrix elements.
doi: 10.1140/epja/i2013-13142-4
2013FR13 Phys.Lett. B 722, 233 (2013) D.Frekers, M.C.Simon, C.Andreoiu, J.C.Bale, M.Brodeur, T.Brunner, A.Chaudhuri, U.Chowdhury, J.R.C.Lopez-Urrutia, P.Delheij, H.Ejiri, S.Ettenauer, A.T.Gallant, V.Gavrin, A.Grossheim, M.N.Harakeh, F.Jang, A.A.Kwiatkowski, J.Lassen, A.Lennarz, M.Luichtl, T.Ma, T.D.Macdonald, E.Mane, D.Robertson, B.E.Schultz, V.V.Simon, A.Teigelhofer, J.Dilling Penning-trap Q-value determination of the 71Ga(ν, e-)71Ge reaction using threshold charge breeding of on-line produced isotopes ATOMIC MASSES 71Ga, 71Ge; measured TOF, TOF-ICR, ion cyclotron resonance spectra; deduced Q-value and its uncertainty. TITAN Penning trap at ISAC/TRIUMF, comparison with AME data.
doi: 10.1016/j.physletb.2013.04.019
2013FR14 Nucl.Phys. A916, 219 (2013) D.Frekers, P.Puppe, J.H.Thies, H.Ejiri Gamow-Teller strength extraction from (3He, t) reactions NUCLEAR REACTIONS 48Ca(3He, t), E*=6.677 MeV;76Ge(3He, t), E*=8.308 MeV;128Te(3He, t), E*=11.948 MeV; calculated σ(θ) using DWBA70, DW81 and ACCBA codes; deduced scaling factor, IAS scaling factor. 71Ga, 76Ge, 82Se, 90,92,96Zr, 100Mo, 128,130Te, 136Xe; calculated σ(q=0) for IAS excitation in (3He, t) reactions, Gamow-Teller strength B(GT). Compared with available relevant data, also for (t, 3He), (d, 2He) and (p, n) reactions.
doi: 10.1016/j.nuclphysa.2013.08.006
2012PU02 Phys.Rev. C 86, 044603 (2012) P.Puppe, A.Lennarz, T.Adachi, H.Akimune, H.Ejiri, D.Frekers, H.Fujita, Y.Fujita, M.Fujiwara, E.Ganioglu, E.-W.Grewe, K.Hatanaka, R.Hodak, C.Iwamoto, N.T.Khai, A.Okamoto, H.Okamura, P.P.Povinec, G.Susoy, T.Suzuki, A.Tamii, J.H.Thies, M.Yosoi High resolution (3He, t)experiment on the double-β decaying nuclei 128Te and 130Te NUCLEAR REACTIONS 128,130Te(3He, t), E=420 MeV; measured triton spectra, σ(θ) using Grand Raiden magnetic spectrometer at RCNP facility. 128,130I; deduced levels, J, π, IAS, B(GT). DWBA analysis. Discussed impact on ββ decay matrix elements for 128,130Te.
doi: 10.1103/PhysRevC.86.044603
2012TH06 Phys.Rev. C 86, 014304 (2012) J.H.Thies, D.Frekers, T.Adachi, M.Dozono, H.Ejiri, H.Fujita, Y.Fujita, M.Fujiwara, E.-W.Grewe, K.Hatanaka, P.Heinrichs, D.Ishikawa, N.T.Khai, A.Lennarz, H.Matsubara, H.Okamura, Y.Y.Oo, P.Puppe, T.Ruhe, K.Suda, A.Tamii, H.P.Yoshida, R.G.T.Zegers The (3He, t) reaction on 76Ge, and the double-β-decay matrix element NUCLEAR REACTIONS 76Ge(3He, t)76As, E=420 MeV; measured triton spectra, σ(θ) using Grand Raiden spectrometer at RCNP facility. 76As; deduced levels, L-transfers, J, π, IAS, GT resonance (GTR) and the spin-dipole resonance (SDR), B(GT) values. DWBA analysis of Σ(θ) data. Comparison of B(GT)- distributions with B(GT)+ from 76Se(d, 2He)76As reaction. Discussed impact on double-beta decay matrix elements for 76Ge decay. RADIOACTIVITY 76Ge(2β-); analyzed double beta-decay matrix elements.
doi: 10.1103/PhysRevC.86.014304
2012TH08 Phys.Rev. C 86, 044309 (2012) J.H.Thies, T.Adachi, M.Dozono, H.Ejiri, D.Frekers, H.Fujita, Y.Fujita, M.Fujiwara, E.-W.Grewe, K.Hatanaka, P.Heinrichs, D.Ishikawa, N.T.Khai, A.Lennarz, H.Matsubara, H.Okamura, Y.Y.Oo, P.Puppe, T.Ruhe, K.Suda, A.Tamii, H.P.Yoshida, R.G.T.Zegers High-resolution 100Mo(3He, t)100Tc charge-exchange experiment and the impact on double-β decays and neutrino charged-current reactions NUCLEAR REACTIONS 100Mo(3He, t), E=420 MeV; measured triton spectra, σ(θ) at RCNP facility. 100Tc; deduced levels, IAS, J, π, B(GT). Discussed impact on the matrix elements for 2νββ decay. DWBA analysis.
doi: 10.1103/PhysRevC.86.044309
2012TH12 Phys.Rev. C 86, 054323 (2012) J.H.Thies, P.Puppe, T.Adachi, M.Dozono, H.Ejiri, D.Frekers, H.Fujita, Y.Fujita, M.Fujiwara, E.-W.Grewe, K.Hatanaka, P.Heinrichs, D.Ishikawa, N.T.Khai, A.Lennarz, H.Matsubara, H.Okamura, Y.Y.Oo, T.Ruhe, K.Suda, A.Tamii, H.P.Yoshida, R.G.T.Zegers High-resolution 96Zr(3He, t) experiment and the matrix element for double-β decay NUCLEAR REACTIONS 90,92,96Zr(3He, t), E=420 MeV; measured triton spectra, σ(θ) using Grand Raiden spectrometer at RCNP facility. 90,92,96Nb; deduced levels, IAS, L-transfers, J, π, B(GT), nuclear matrix element for 2νββ decay of 96Zr. 91,94Zr(3He, t), E=420 MeV; measured triton spectrum; deduced IAS in 91,94Nb. Comparison with shell model calculations, and with previous study of 96Mo(d, 2He)96Nb reaction.
doi: 10.1103/PhysRevC.86.054323
2011BR13 Hyperfine Interactions 199, 191 (2011) T.Brunner, M.Brodeur, P.Delheij, S.Ettenauer, D.Frekers, A.T.Gallant, R.Krucken, A.Lapierre, D.Lunney, R.Ringle, V.V.Simon, J.Dilling In-trap decay spectroscopy for 2νββ decay experiments RADIOACTIVITY 124,126Cs(EC); measured Eγ, Iγ, X-rays, Eβ, Iβ; deduced possibility of electron capture branching ratio measurement of $^100$Tc. Penning trap.
doi: 10.1007/s10751-011-0313-9
2011FR08 Nucl.Phys. A860, 1 (2011) D.Frekers, P.Puppe, J.H.Thies, P.P.Povinec, F.Simkovic, J.Stanicek, I.Sykora Double-electron capture of 74Se and the search for neutrinoless decay RADIOACTIVITY 74Se(2EC); measured Eγ, Iγ, γγ-coin; deduced T1/2 limit.
doi: 10.1016/j.nuclphysa.2011.05.002
2011FR15 Phys.Lett. B 706, 134 (2011) D.Frekers, H.Ejiri, H.Akimune, T.Adachi, B.Bilgier, B.A.Brown, B.T.Cleveland, H.Fujita, Y.Fujita, M.Fujiwara, E.Ganioglu, V.N.Gavrin, E.-W.Grewe, C.J.Guess, M.N.Harakeh, K.Hatanaka, R.Hodak, M.Holl, C.Iwamoto, N.T.Khai, H.C.Kozer, A.Lennarz, A.Okamoto, H.Okamura, P.P.Povinec, P.Puppe, F.Simkovic, G.Susoy, T.Suzuki, A.Tamii, J.H.Thies, J.Van de Walle, R.G.T.Zegers The 71Ga(3He, t) reaction and the low-energy neutrino response NUCLEAR REACTIONS 71Ga(3He, t), E=420 MeV; measured reaction products; deduced isobaric-analogue resonance yields, σ(θ), Gamow-Teller strength values. SAGE and GALLEX calibration implications.
doi: 10.1016/j.physletb.2011.10.061
2011GU14 Phys.Rev. C 83, 064318 (2011) C.J.Guess, T.Adachi, H.Akimune, A.Algora, S.M.Austin, D.Bazin, B.A.Brown, C.Caesar, J.M.Deaven, H.Ejiri, E.Estevez, D.Fang, A.Faessler, D.Frekers, H.Fujita, Y.Fujita, M.Fujiwara, G.F.Grinyer, M.N.Harakeh, K.Hatanaka, C.Herlitzius, K.Hirota, G.W.Hitt, D.Ishikawa, H.Matsubara, R.Meharchand, F.Molina, H.Okamura, H.J.Ong, G.Perdikakis, V.Rodin, B.Rubio, Y.Shimbara, G.Susoy, T.Suzuki, A.Tamii, J.H.Thies, C.Tur, N.Verhanovitz, M.Yosoi, J.Yurkon, R.G.T.Zegers, J.Zenihiro The 150Nd(3He, t) and 150Sm(t, 3He) reactions with applications to ββ decay of 150Nd NUCLEAR REACTIONS 150Nd(3He, t), E=140 MeV/nucleon; 150Sm(t, 3He), E=115 MeV/nucleon; measured triton and 3He spectra, excitation energy spectra, differential cross sections, σ(θ) 150Pm; deduced B(GT) strengths; isovector spin-flip giant monopole resonance (IVSGMR). Grand Raiden Spectrometer for (3He, t) and S-800 spectrometer for (t, 3He). Comparison with Quasi-Particle Random Phase Approximation (QRPA) calculations. Application to double β decay of 150Nd. RADIOACTIVITY 150Nd(2β-); calculated matrix elements for 0νββ and 2νββ decay modes using QRPA calculations. Comparison with experimental data.
doi: 10.1103/PhysRevC.83.064318
2011KR07 Nucl.Phys. A859, 140 (2011) M.I.Krivoruchenko, F.Simkovic, D.Frekers, A.Faessler Resonance enhancement of neutrinoless double electron capture RADIOACTIVITY 96Ru, 106Cd, 124Xe, 136Ce, 152Gd, 156Dy, 154Er, 168Yb, 180W, 184Os, 190Pt(2β+); 78Kr, 96Ru, 106Cd, 112Sn, 130Ba, 162Er, 184Os(2EC); calculated T1/2 limits, nuclear matrix elements; deduced ν mass limits.
doi: 10.1016/j.nuclphysa.2011.04.009
2011PU06 Phys.Rev. C 84, 051305 (2011) P.Puppe, D.Frekers, T.Adachi, H.Akimune, N.Aoi, B.Bilgier, H.Ejiri, H.Fujita, Y.Fujita, M.Fujiwara, E.Ganioglu, M.N.Harakeh, K.Hatanaka, M.Holl, H.C.Kozer, J.Lee, A.Lennarz, H.Matsubara, K.Miki, S.E.A.Orrigo, T.Suzuki, A.Tamii, J.H.Thies High-resolution (3He, t) reaction on the double-β decaying nucleus 136Xe NUCLEAR REACTIONS 136Xe(3He, t), E=420 MeV; measured E(t), I(t), σ(θ) using Grand-Raiden spectrometer. 136Cs; deduced levels, J, π, l-values, Gamow-Teller (GT) transition strengths. DWBA analysis. Relevance to double beta decay matrix elements for 136Xe.
doi: 10.1103/PhysRevC.84.051305
2010FR01 Prog.Part.Nucl.Phys. 64, 281 (2010) Nuclear reactions and the double beta decay NUCLEAR REACTIONS 76Se(d, 2p), 100Mo(3He, t), E not given; analyzed charge-exchange reaction data; deduced nuclear matrix elements for 2β-decay.
doi: 10.1016/j.ppnp.2009.12.029
2009PO07 Phys.Rev. C 79, 064312 (2009) L.Popescu, T.Adachi, G.P.A.Berg, P.von Brentano, D.Frekers, D.De Frenne, K.Fujita, Y.Fujita, E.-W.Grewe, M.N.Harakeh, K.Hatanaka, E.Jacobs, K.Nakanishi, A.Negret, Y.Sakemi, Y.Shimbara, Y.Shimizu, Y.Tameshige, A.Tamii, M.Uchida, H.J.Wortche, M.Yosoi Gamow-Teller transitions studied in the high-resolution 64Ni(3He, t)64Cu reaction NUCLEAR REACTIONS 64Ni(3He, t), E=140 MeV/nucleon; measured triton spectra, σ, σ(θ), L. 64Cu; deduced levels, J, π, Gamow-Teller strengths, and Gamow-Teller Giant resonance. Comparison with Ikeda sum rule predictions.
doi: 10.1103/PhysRevC.79.064312
2009YA07 Phys.Rev.Lett. 103, 012503 (2009) K.Yako, M.Sasano, K.Miki, H.Sakai, M.Dozono, D.Frekers, M.B.Greenfield, K.Hatanaka, E.Ihara, M.Kato, T.Kawabata, H.Kuboki, Y.Maeda, H.Matsubara, K.Muto, S.Noji, H.Okamura, T.H.Okabe, S.Sakaguchi, Y.Sakemi, Y.Sasamoto, K.Sekiguchi, Y.Shimizu, K.Suda, Y.Tameshige, A.Tamii, T.Uesaka, T.Wakasa, H.Zheng Gamow-Teller Strength Distributions in 48Sc by the 48Ca(p, n) and 48Ti(n, p) Reactions and Two-Neutrino Double-β Decay Nuclear Matrix Elements NUCLEAR REACTIONS 48Ca(p, n), 48Ti(n, p), E=300 MeV; measured Ep, Ip, En, In; deduced σ(E, θ), Gamow-Teller strengths. Comparison with GXPF1A shell model.
doi: 10.1103/PhysRevLett.103.012503
2008DO23 Phys.Rev. C 78, 041602 (2008) H.Dohmann, C.Baumer, D.Frekers, E.-W.Grewe, M.N.Harakeh, S.Hollstein, H.Johansson, L.Popescu, S.Rakers, D.Savran, H.Simon, J.H.Thies, A.M.van den Berg, H.J.Wortche, A.Zilges The (d, 2He) reaction on 96Mo and the double-β decay matrix elements for 96Zr NUCLEAR REACTIONS 96Mo(d, 2He), E=183.5 MeV; measured charged particle spectra, σ(θ). 96Nb; deduced levels, J, π, B(GT). RADIOACTIVITY 96Zr(2β-); analyzed nuclear matrix elements for 2νββ and 0νββ decay modes.
doi: 10.1103/PhysRevC.78.041602
2008GR10 Phys.Rev. C 77, 064303 (2008) E.-W.Grewe, C.Baumer, H.Dohmann, D.Frekers, M.N.Harakeh, S.Hollstein, H.Johansson, K.Langanke, G.Martinez-Pinedo, F.Nowacki, I.Petermann, L.Popescu, S.Rakers, D.Savran, K.Sieja, H.Simon, J.H.Thies, A.M.van den Berg, H.J.Wortche, A.Zilges Studies on the double-β decay nucleus 64Zn using the (d, 2He) reaction NUCLEAR REACTIONS 64Zn(d, 2He), E=183 MeV; measured charged particle energies, angular distributions, σ(θ). 64Cu; deduced levels, J, π, Gamow-Teller strengths. 64Ni(3He, t); analyzed Gamow-Teller strength distribution. Comparison with shell model calculations.
doi: 10.1103/PhysRevC.77.064303
2008GR19 Phys.Rev. C 78, 044301 (2008) E.-W.Grewe, C.Baumer, H.Dohmann, D.Frekers, M.N.Harakeh, S.Hollstein, H.Johansson, L.Popescu, S.Rakers, D.Savran, H.Simon, J.H.Thies, A.M.van den Berg, H.J.Wortche, A.Zilges The (d, 2He) reaction on 76Se and the double-β-decay matrix elements for A = 76 NUCLEAR REACTIONS 76Se(d, 2He), E=183 MeV; measured particle spectra, σ(θ). 76As; deduced levels, J, π, B(GT), DWBA analysis. Comparison with 76Se(n, p), 76Ge(p, n) reactions.
doi: 10.1103/PhysRevC.78.044301
2008VO01 J.Phys.(London) G35, 014034 (2008) C.Vockenhuber, C.O.Ouellet, L.-S.The, L.Buchmann, J.Caggiano, A.A.Chen, J.M.D'Auria, B.Davids, L.Fogarty, D.Frekers, A.Hussein, D.A.Hutcheon, W.Kutschera, D.Ottewell, M.Paul, M.M.Pavan, J.Pearson, C.Ruiz, G.Ruprecht, M.Trinczek, A.Wallner 40Ca(α, γ)44Ti and the production of 44Ti in supernovae NUCLEAR REACTIONS 4He(40Ca, γ), E=600-1150 keV/nucleon; measured Eγ, γγ-, (recoil)γ-coin, excitation function.
doi: 10.1088/0954-3899/35/1/014034
2007BE18 Phys.Lett. B 645, 128 (2007); Erratum Phys.Lett. B 671, 496 (2009) F.Beck, D.Frekers, P.von Neumann-Cosel, A.Richter, N.Ryezayeva, I.J.Thompson Spectroscopic factor of the 7He ground state NUCLEAR REACTIONS 7Li(d, 2p), E=171 MeV; analysed σ(E, θ); deduced resonance width, spectroscopic factor. R-matrix analysis.
doi: 10.1016/j.physletb.2006.12.036
2007FR09 Can.J.Phys. 85, 57 (2007) D.Frekers, J.Dilling, I.Tanihata Electron capture branching ratios for the odd-odd intermediate nuclei in double-beta decay using the TITAN ion trap facility NUCLEAR STRUCTURE 76As, 82mBr, 100Tc, 110Ag, 114In, 116In, 128I; analyzed electron-capture and charge-exchange reaction data for the odd-odd intermediate nuclei in 2β-decay.
doi: 10.1139//P07-009
2007GR22 Phys.Rev. C 76, 054307 (2007) E.-W.Grewe, D.Frekers, S.Rakers, T.Adachi, C.Baumer, N.T.Botha, H.Dohmann, H.Fujita, Y.Fujita, K.Hatanaka, K.Nakanishi, A.Negret, R.Neveling, L.Popescu, Y.Sakemi, Y.Shimbara, Y.Shimizu, F.D.Smit, Y.Tameshige, A.Tamii, J.Thies, P.von Brentano, M.Yosoi, R.G.T.Zegers (3He, t) reaction on the double β decay nucleus 48Ca and the importance of nuclear matrix elements NUCLEAR REACTIONS 48Ca(3He, t), E=420 MeV; measured charged particles, angular distributions; calculated Gamow-Teller strengths. 48Sc; deduced levels, J, π. Compared with 48Ca(p, n), E=134 MeV and 48Ca(d, 2He), E=183 MeV reactions. 48Ca; implications for 2β decay.
doi: 10.1103/PhysRevC.76.054307
2007HO13 Phys.Rev. C 76, 014314 (2007) F.Hofmann, C.Baumer, A.M.van den Berg, D.Frekers, V.M.Hannen, M.N.Harakeh, M.de Huu, Y.Kalmykov, P.von Neumann-Cosel, V.Yu.Ponomarev, S.Rakers, B.Reitz, A.Richter, K.Schweda, A.Shevchenko, J.Wambach, H.J.Wortche Proton scattering at intermediate energies on 58Ni: How well is it understood? NUCLEAR REACTIONS 58Ni(p, p'), E=172 MeV; measured cross sections, spin flip cross sections and spin-flip probabilities. Compared results to model calculations.
doi: 10.1103/PhysRevC.76.014314
2007PO06 Phys.Rev. C 75, 054312 (2007) L.Popescu, C.Baumer, A.M.van den Berg, D.Frekers, D.De Frenne, Y.Fujita, E.W.Grewe, P.Haefner, M.N.Harakeh, M.Hunyadi, M.A.de Huu, E.Jacobs, H.Johansson, A.Korff, A.Negret, P.von Neumann-Cosel, S.Rakers, A.Richter, N.Ryezayeva, A.Shevchenko, H.Simon, H.J.Wortche Low-lying GT+ strength in 64Co studied via the 64Ni(d, 2He)64Co reaction NUCLEAR REACTIONS 64Ni(d, 2p), E=171 MeV; measured σ and angular distributions. Deduced GT strength to low lying states.
doi: 10.1103/PhysRevC.75.054312
2007SA47 Nucl.Phys. A788, 76c (2007) M.Sasano, H.Sakai, K.Yako, H.Kuboki, K.Miki, S.Noji, T.Wakasa, M.Dozono, K.Sekiguchi, T.Uesaka, T.Kawabata, Y.Maeda, S.Sakaguchi, Y.Sasamoto, K.Suda, K.Itoh, K.Hatanaka, H.Okamura, A.Tamii, K.Muto, D.Frekers, M.B.Greenfield Determination of the Gamow-Teller transition strength to 116In(g.s.) by the 116Cd(p, n) reaction at 300 MeV for the study of the nuclear matrix element of the two-neutrino double beta decay NUCLEAR REACTIONS 116Cd(p, n), E=300 MeV; measured excitation energy spectrum. 116In deduced Gamow-Teller strength distribution, nuclear matrix elements. Comparison with other data.
doi: 10.1016/j.nuclphysa.2007.01.051
2007VO03 Nucl.Instrum.Methods Phys.Res. B259, 688 (2007) C.Vockenhuber, C.O.Ouellet, L.Buchmann, J.Caggiano, A.A.Chen, J.M.D'Auria, D.Frekers, A.Hussein, D.A.Hutcheon, W.Kutschera, K.Jayamanna, D.Ottewell, M.Paul, J.Pearson, C.Ruiz, G.Ruprecht, M.Trinczek, A.Wallner The 40Ca(α, γ)44Ti reaction at DRAGON NUCLEAR REACTIONS 4He(40Ca, γ)44Ti, E=1.135 MeV/nucleon; measured yield and resonance strength at DRAGON recoil mass spectrometer.
doi: 10.1016/j.nimb.2007.01.222
2007VO06 Phys.Rev. C 76, 035801 (2007) C.Vockenhuber, C.O.Ouellet, L.-S.The, L.Buchmann, J.Caggiano, A.A.Chen, H.Crawford, J.M.D'Auria, B.Davids, L.Fogarty, D.Frekers, A.Hussein, D.A.Hutcheon, W.Kutschera, A.M.Laird, R.Lewis, E.O'Connor, D.Ottewell, M.Paul, M.M.Pavan, J.Pearson, C.Ruiz, G.Ruprecht, M.Trinczek, B.Wales, A.Wallner Measurement of the 40Ca(α, γ)44Ti reaction relevant for supernova nucleosynthesis NUCLEAR REACTIONS 4He(40Ca, γ)44Ti, E=0.60-1.15 MeV/nucleon; measured recoil energies, yields, and cross section.
doi: 10.1103/PhysRevC.76.035801
2006BA40 Phys.Rev. C 74, 015802 (2006) A.Bartlett, J.Gorres, G.J.Mathews, K.Otsuki, M.Wiescher, D.Frekers, A.Mengoni, J.Tostevin Two-neutron capture reactions and the r process NUCLEAR REACTIONS 4He(2n, γ), 6He(α, n), E(cm)=0-4 MeV; calculated σ, astrophysical reaction rates. Implications for r-process nucleosynthesis discussed.
doi: 10.1103/PhysRevC.74.015802
2006FR03 Prog.Part.Nucl.Phys. 57, 217 (2006) Facets of charge-exchange reactions - from astrophysics to double beta decay NUCLEAR REACTIONS 61Ni, 57Fe, 48Ti(d, 2p), E=183 MeV; 48Ca(3He, t), E=420 MeV; analyzed σ(E, θ), Gamow-Teller strength distributions. RADIOACTIVITY 48Ca(2β-); calculated 2νββ-decay T1/2.
doi: 10.1016/j.ppnp.2005.11.019
2006GR08 Prog.Part.Nucl.Phys. 57, 260 (2006) Measurements of 2νββ decay-matrix elements for mass A = 64, 76 and A = 96 through charge-exchange reactions NUCLEAR REACTIONS 64Zn, 76Se, 96Mo(d, 2p), E not given; 64Ni(3He, t), E not given; analyzed σ(E, θ); deduced Gamow-Teller strength distributions, 2β-decay matrix elements.
doi: 10.1016/j.ppnp.2005.12.007
2006GU02 Phys.Rev. C 73, 014616 (2006) J.Guillot, S.Gales, D.Beaumel, S.Fortier, E.Rich, N.Van Giai, G.Colo, A.M.van den Berg, S.Brandenburg, B.Davids, M.N.Harakeh, M.Hunyadi, M.de Huu, S.Y.van der Werf, H.J.Wortche, C.Baumer, D.Frekers, E.-W.Grewe, P.Haefner, B.C.Junk, M.Fujiwara The (t, 3He) reaction at 43 MeV/nucleon on 48Ca and 58Ni: Results and microscopic interpretation NUCLEAR REACTIONS 12C, 48Ca, 58Ni(t, 3He), E=43 MeV/nucleon; measured excitation energy spectra, σ(E, θ). 48K, 58Co deduced giant resonance features.
doi: 10.1103/PhysRevC.73.014616
2006MA95 Nucl.Phys. A777, 395 (2006) G.Martinez-Pinedo, M.Liebendorfer, D.Frekers Nuclear input for core-collapse models
doi: 10.1016/j.nuclphysa.2006.02.014
2006NE06 Phys.Rev.Lett. 97, 062502 (2006) A.Negret, T.Adachi, B.R.Barrett, C.Baumer, A.M.van den Berg, G.P.A.Berg, P.von Brentano, D.Frekers, D.De Frenne, H.Fujita, K.Fujita, Y.Fujita, E.-W.Grewe, P.Haefner, M.N.Harakeh, K.Hatanaka, K.Heyde, M.Hunyadi, E.Jacobs, Y.Kalmykov, A.Korff, K.Nakanishi, P.Navratil, P.von Neumann-Cosel, L.Popescu, S.Rakers, A.Richter, N.Ryezayeva, Y.Sakemi, A.Shevchenko, Y.Shimbara, Y.Shimizu, Y.Tameshige, A.Tamii, M.Uchida, J.Vary, H.J.Wortche, M.Yosoi, L.Zamick Gamow-Teller Strengths in the A = 14 Multiplet: A Challenge to the Shell Model NUCLEAR REACTIONS 14N(d, 2p), E=175 MeV; 14N(3He, t), E=420 MeV; measured excitation energy spectra, σ(E, θ); deduced Gamow-Teller strength distributions. Comparison with no-core shell model predictions.
doi: 10.1103/PhysRevLett.97.062502
2006RU09 Phys.Rev.Lett. 96, 252501 (2006) C.Ruiz, A.Parikh, J.Jose, L.Buchmann, J.A.Caggiano, A.A.Chen, J.A.Clark, H.Crawford, B.Davids, J.M.D'Auria, C.Davis, C.Deibel, L.Erikson, L.Fogarty, D.Frekers, U.Greife, A.Hussein, D.A.Hutcheon, M.Huyse, C.Jewett, A.M.Laird, R.Lewis, P.Mumby-Croft, A.Olin, D.F.Ottewell, C.V.Ouellet, P.Parker, J.Pearson, G.Ruprecht, M.Trinczek, C.Vockenhuber, C.Wrede Measurement of the Ec.m. = 184 keV Resonance Strength in the 26gAl(p, γ)27Si Reaction NUCLEAR REACTIONS 1H(26Al, γ), E=5.122, 5.226, 5.850 MeV; measured Eγ, (recoil)γ-coin. 26Al(p, γ), E(cm) ≈ 184 keV; deduced resonance strength. Astrophysical implications discussed.
doi: 10.1103/PhysRevLett.96.252501
2006RY03 Phys.Lett. B 639, 623 (2006) N.Ryezayeva, C.Baumer, A.M.van den Berg, L.V.Chulkov, D.Frekers, D.De Frenne, E.-W.Grewe, P.Haefner, E.Jacobs, H.Johanson, Y.Kalmykov, A.Negret, P.von Neumann-Cosel, L.Popescu, S.Rakers, A.Richter, G.Schrieder, A.Shevchenko, H.Simon, H.J.Wortche Search for a low-energy resonance in 7He with the 7Li(d, 2He) reaction NUCLEAR REACTIONS 6,7Li(d, 2p), E=171 MeV; analysed σ(θ, E'); deduced B(GT). DWBA analysis.
doi: 10.1016/j.physletb.2006.06.081
2005BA14 Phys.Rev. C 71, 024603 (2005); Erratum Phys.Rev. C 71, 029903 (2005) C.Baumer, A.M.van den Berg, B.Davids, D.Frekers, D.De Frenne, E.-W.Grewe, P.Haefner, M.N.Harakeh, F.Hofmann, S.Hollstein, M.Hunyadi, M.A.de Huu, E.Jacobs, B.C.Junk, A.Korff, K.Langanke, G.Martinez-Pinedo, A.Negret, P.von Neumann-Cosel, L.Popescu, S.Rakers, A.Richter, H.J.Wortche Determination of the Gamow-Teller strength distribution from the odd-odd nucleus 50V measured through 50V(d, 2He)50Ti and astrophysical implications NUCLEAR REACTIONS 50V(d, 2p), E=171 MeV; measured Ep, pp-coin, σ(E, θ). 50V deduced Gamow-Teller strength distribution. Comparison with model predictions.
doi: 10.1103/PhysRevC.71.024603
2005BA43 Phys.Rev. C 71, 044003 (2005) C.Baumer, D.Frekers, E.-W.Grewe, P.Haefner, S.Hollstein, B.C.Junk, A.Korff, S.Rakers, R.Schmidt, A.M.van den Berg, B.Davids, M.N.Harakeh, M.Hunyadi, M.A.de Huu, H.J.Wortche, N.Blasi, D.De Frenne, E.Jacobs, A.Negret, L.Popescu, R.De Leo, F.Hofmann, P.von Neumann-Cosel, A.Richter Measurement of the 2H(d, 2He)2n reaction at Ed = 171 MeV and implications for the neutron-neutron scattering length NUCLEAR REACTIONS 2H(d, 2p), E=171 MeV; measured Ep, pp-coin, σ(θ); deduced neutron-neutron scattering length.
doi: 10.1103/PhysRevC.71.044003
2005FR11 Nucl.Phys. A752, 580c (2005) Weak interaction processes in supernovae: New probes using charge exchange reaction at intermediate energies NUCLEAR REACTIONS 61Ni, 57Fe(d, 2p), E=183 MeV; 56Fe(d, 2p), E=172 MeV; 50V(d, 2p), E not given; analyzed particle spectra, Gamow-Teller strength distributions.
doi: 10.1016/j.nuclphysa.2005.02.134
2005GU11 Nucl.Phys. A752, 349c (2005) J.Guillot, C.Baumer, D.Beaumel, A.M.van den Berg, S.Brandenburg, G.Colo, B.Davids, S.Fortier, D.Frekers, E.-W.Grewe, M.Fujiwara, S.Gales, P.Haefner, M.N.Harakeh, M.Hunyadi, M.de Huu, B.C.Junk, E.Rich, N.Van Giai, S.Y.van der Werf, H.J.Wortche Investigation of Isovector Excitations via the (t, 3He) reaction at Et=43 MeV/u on 58Ni and 48Ca targets: microscopic interpretation NUCLEAR REACTIONS 48Ca, 58Ni(t, 3He), E=130 MeV; analyzed particle spectra, σ(θ); deduced resonance features.
doi: 10.1016/j.nuclphysa.2005.02.044
2005HA03 Phys.Rev. C 71, 014606 (2005) M.Hagemann, C.Baumer, A.M.van den Berg, D.De Frenne, D.Frekers, V.M.Hannen, M.N.Harakeh, J.Heyse, M.A.de Huu, E.Jacobs, K.Langanke, G.Martinez-Pinedo, A.Negret, L.Popescu, S.Rakers, R.Schmidt, H.J.Wortche Spin-isospin excitations in the medium-mass nucleus 58Co investigated with the (d, 2He) reaction NUCLEAR REACTIONS 58Ni(d, 2p), E=170 MeV; measured Ep, pp-coin, σ(E, θ). 58Co deduced levels, Gamow-Teller strengths, related features. 58Ni, 58Co deduced analog states Coulomb displacement energy. Comparison with large-scale shell model calculations.
doi: 10.1103/PhysRevC.71.014606
2005HO10 Phys.Lett. B 612, 165 (2005) F.Hofmann, C.Baumer, A.M.van den Berg, D.Frekers, V.M.Hannen, M.N.Harakeh, M.A.de Huu, Y.Kalmykov, P.von Neumann-Cosel, V.Yu.Ponomarev, S.Rakers, B.Reitz, A.Richter, A.Shevchenko, K.Schweda, J.Wambach, H.J.Wortche Polarized proton scattering on 58Ni at small momentum transfer: A test of the microscopic optical model and effective interactions NUCLEAR REACTIONS 58Ni(polarized p, p'), (polarized p, p), E=172 MeV; measured elastic and inelastic σ(E, θ), analyzing powers. Comparison with model predictions.
doi: 10.1016/j.physletb.2005.03.020
2005NE14 J.Phys.(London) G31, S1931 (2005) A.Negret, T.Adachi, C.Baumer, A.M.van den Berg, G.P.A.Berg, P.von Brentano, D.Frekers, D.De Frenne, K.Fujita, Y.Fujita, E.-W.Grewe, P.Haefner, K.Hatanaka, M.Hunyadi, E.Jacobs, A.Korff, K.Nakanishi, L.Popescu, S.Rakers, Y.Sakemi, Y.Shimbara, Y.Shimizu, Y.Tameshige, A.Tamii, M.Uchida, H.J.Wortche, M.Yosoi High resolution study of the Gamow-Teller strength distribution starting from the ground state of 14N in the β- and β+ directions NUCLEAR REACTIONS 14N(d, 2p), E=170 MeV; 14N(3He, t), E=420 MeV; measured excitation energy spectra; deduced isospin symmetry features.
doi: 10.1088/0954-3899/31/10/104
2005RA13 Phys.Rev. C 71, 054313 (2005) S.Rakers, C.Baumer, A.M.van den Berg, B.Davids, D.Frekers, D.De Frenne, E.-W.Grewe, P.Haefner, M.N.Harakeh, S.Hollstein, M.Hunyadi, E.Jacobs, B.C.Junk, A.Korff, A.Negret, L.Popescu, H.J.Wortche Low-lying GT+ strength in 116In from a (d, 2He) reaction experiment and its implications for 116Cd double β decay NUCLEAR REACTIONS 116Sn(d, 2p), E=183 MeV; measured Ep, σ(E, θ). 116In levels deduced Gamow-Teller strength distribution. 116Cd deduced 2β-decay matrix elements.
doi: 10.1103/PhysRevC.71.054313
2004FR09 Nucl.Phys. A731, 76 (2004) Facets of (d, 2He) Charge-Exchange Reactions at Intermediate Energies
doi: 10.1016/j.nuclphysa.2003.11.020
2004GR18 Phys.Rev. C 69, 064325 (2004) E.W.Grewe, C.Baumer, A.M.van den Berg, N.Blasi, B.Davids, D.De Frenne, D.Frekers, P.Haefner, M.N.Harakeh, M.Hunyadi, E.Jacobs, B.Junk, A.Korff, A.Negret, P.von Neumann-Cosel, L.Popescu, S.Rakers, H.J.Wortche Gamow-Teller transitions to 32P studied through the 32S(d, 2He) reaction at Ed = 170 MeV NUCLEAR REACTIONS 32S(d, 2p), E=170 MeV; measured Ep, pp-coin, σ(θ). 32P levels deduced B(GT), analog states. Comparison with previous results, shell-model calculations.
doi: 10.1103/PhysRevC.69.064325
2004HA12 J.Phys.(London) G30, 481 (2004) S.Hamieh, H.J.Wortche, C.Baumer, A.M.van den Berg, D.Frekers, M.N.Harakeh, J.Heyse, M.Hunyadi, M.A.de Huu, C.Polachic, S.Rakers, C.Rangacharyulu Testing quantum correlations with nuclear probes NUCLEAR REACTIONS 1H, 12C(d, 2p), E=172 MeV; measured proton spectra, pp-coin, spin correlations. Application to quantum communication technology discussed.
doi: 10.1088/0954-3899/30/4/007
2004KO64 Phys.Rev. C 70, 067601 (2004) A.Korff, P.Haefner, C.Baumer, A.M.van den Berg, N.Blasi, B.Davids, D.De Frenne, R.de Leo, D.Frekers, E.-W.Grewe, M.N.Harakeh, F.Hofmann, M.Hunyadi, E.Jacobs, B.C.Junk, A.Negret, P.von Neumann-Cosel, L.Popescu, S.Rakers, A.Richter, H.J.Wortche Deuteron elastic and inelastic scattering at intermediate energies from nuclei in the mass range 6 ≤ A ≤ 116 NUCLEAR REACTIONS 6Li, 16O, 32S, 50,51V, 70,72Ge(d, d), (d, d'), E=171 MeV; 90Zr, 116Sn(d, d), (d, d'), E=183 MeV; measured σ(θ); deduced optical model parameters.
doi: 10.1103/PhysRevC.70.067601
2004PO03 Phys.Lett. A 323, 176 (2004) C.Polachic, C.Rangacharyulu, A.M.van den Berg, S.Hamieh, M.N.Harakeh, M.Hunyadi, M.A.de Huu, H.J.Wortche, J.Heyse, C.Baumer, D.Frekers, S.Rakers, J.A.Brooke, P.Busch Polarization correlations of 1S0 proton pairs as tests of hidden-variable theories NUCLEAR REACTIONS 1H, 12C(d, 2p), E=172 MeV; measured proton pair polarization correlations. Comparison with Bell and Wigner-Belinfante inequalities.
doi: 10.1016/j.physleta.2004.01.073
2004RA26 Phys.Rev. C 70, 054302 (2004) S.Rakers, C.Baumer, A.M.van den Berg, B.Davids, D.Frekers, D.De Frenne, Y.Fujita, E.-W.Grewe, P.Haefner, M.N.Harakeh, M.Hunyadi, E.Jacobs, H.Johansson, B.C.Junk, A.Korff, A.Negret, L.Popescu, H.Simon, H.J.Wortche Nuclear matrix elements for the 48Ca two-neutrino double-β decay from high-resolution charge-exchange reactions NUCLEAR REACTIONS 48Ti(d, 2p), E=183 MeV; measured Ep, σ(E, θ); 48Ca(p, n), E=134 MeV; analyzed data; deduced Gamow-Teller transition matrix elements. 48Ca deduced 2ν-accompanied 2β-decay T1/2.
doi: 10.1103/PhysRevC.70.054302
2003AB02 Phys.Lett. B 553, 31 (2003) S.Abdel-Samad, J.Bojowald, A.Budzanowski, A.Chatterjee, J.Ernst, D.Frekers, P.Hawranek, J.Ilieva, L.Jarczyk, K.Kilian, S.Kliczewski, W.Klimala, D.Kolev, M.Kravcikova, T.Kutsarova, J.Lieb, H.Machner, A.Magiera, G.Martinska, H.Nann, L.Pentchev, D.Protic, P.von Rossen, B.J.Roy, R.Siudak, A.Strzalkowski, R.Tsenov, M.Ulicny, J.Urban, K.Zwoll Isospin symmetry breaking and scaling observed in pion production in p+d reactions NUCLEAR REACTIONS 2H(p, π0), (p, π+), E at 900-1050 MeV/c; measured σ, σ(θ), σ(E); deduced scale parameter, isospin symmetry breaking, related features.
doi: 10.1016/S0370-2693(02)03166-0
2003AB16 Phys.Scr. T104, 88 (2003) S.Abdel-Samad, J.Bojowald, A.Budzanowski, A.Chatterjee, J.Ernst, D.Frekers, P.Hawranek, J.Ilieva, L.Jarczyk, K.Kilian, S.Kliczewski, W.Klimala, D.Kolev, M.Kravcikova, T.Kutsarova, J.Lieb, H.Machner, A.Magiera, G.Martinska, H.Nann, L.Pentchev, D.Protic, P.von Rossen, B.J.Roy, R.Siudak, M.Ulicny, A.Strzakowski, R.Tsenov, J.Urban, K.Zwoll Simultaneous Measurements of p + d → 3He + π0 and p + d → 3H + π+ Reactions with the GEM detector NUCLEAR REACTIONS 2H(p, π0), (p, π+), E at 750-1050 MeV/c; measured σ(θ); deduced slope parameters.
doi: 10.1238/Physica.Topical.104a00088
2003AB30 Eur.Phys.J. A 18, 367 (2003) S.Abdel-Samad, J.Bojowald, A.Budzanowski, A.Chatterjee, J.Ernst, D.Frekers, P.Hawranek, J.Ilieva, L.Jarczyk, K.Kilian, S.Kliczewski, W.Klimala, D.Kolev, M.Kravcikova, T.Kutsarova, J.Lieb, H.Machner, A.Magiera, G.Martinska, H.Nann, L.Pentchev, D.Protic, P.von Rossen, B.J.Roy, R.Siudak, A.Strzalkowski, R.Tsenov, M.Ulicny, J.Urban, K.Zwoll Study of p + d → 3A + π reactions in the Δ-resonance region NUCLEAR REACTIONS 2H(p, π0), (p, π+), E at 900-1050 MeV/c; measured σ, σ(θ); deduced slope parameters, reaction mechanism features.
doi: 10.1140/epja/i2002-10286-2
2003BA77 Phys.Rev. C 68, 031303 (2003) C.Baumer, A.M.van den Berg, B.Davids, D.Frekers, D.De Frenne, E.-W.Grewe, P.Haefner, M.N.Harakeh, F.Hofmann, M.Hunyadi, E.Jacobs, B.C.Junk, A.Korff, K.Langanke, G.Martinez-Pinedo, A.Negret, P.von Neumann-Cosel, L.Popescu, S.Rakers, A.Richter, H.J.Wortche High-resolution study of the Gamow-Teller strength distribution in 51Ti measured through 51V(d, 2He)51Ti NUCLEAR REACTIONS 51V(d, 2p), E=171 MeV; measured Ep, pp-coin. 51Ti deduced levels, Gamow-Teller strength distribution. Comparison with large-scale shell model predictions.
doi: 10.1103/PhysRevC.68.031303
2003HA11 Phys.Rev. C 67, 054320 (2003) V.M.Hannen, K.Amos, A.M.van den Berg, R.K.Bieber, P.K.Deb, F.Ellinghaus, D.Frekers, M.Hagemann, M.N.Harakeh, J.Heyse, M.A.de Huu, B.A.M.Krusemann, S.Rakers, R.Schmidt, S.Y.van der Werf, H.J.Wortche Measurement and microscopic analysis of the 11B(p(pol), p(pol)) reaction at Ep = 150 MeV. I. Inelastic scattering NUCLEAR REACTIONS 11B(polarized p, p'), E=150 MeV; measured σ(E, θ), analyzing powers, spin-flip probabilities. 11B deduced transitions B(M1), B(E2). Comparison with model predictions.
doi: 10.1103/PhysRevC.67.054320
2003HA12 Phys.Rev. C 67, 054321 (2003) V.M.Hannen, K.Amos, A.M.van den Berg, R.K.Bieber, P.K.Deb, F.Ellinghaus, D.Frekers, M.Hagemann, M.N.Harakeh, J.Heyse, M.A.de Huu, B.A.M.Krusemann, S.Rakers, R.Schmidt, S.Y.van der Werf, H.J.Wortche Measurement and microscopic analysis of the 11B(p(pol), p(pol)) reaction at Ep = 150 MeV. II. Depolarization in elastic scattering from odd-A nuclei NUCLEAR REACTIONS 11B, 12C(polarized p, p), E=150 MeV; measured σ(θ), polarization transfer coefficient. Comparison with model predictions.
doi: 10.1103/PhysRevC.67.054321
2003WO10 Nucl.Phys. A719, 131c (2003) H.J.Wortche, A.M.van den Berg, V.M.Hannen, M.N.Harakeh, M.A.de Huu, D.De Frenne, M.Hagemann, J.Heyse, E.Jacobs, C.Baumer, D.Frekers, S.Rakers, R.Schmidt High resolution studies of low lying GT strength using the (d, 2He) reaction and its impact on electron-capture rates in stellar environments NUCLEAR REACTIONS 58Ni(d, 2p), E=170 MeV; measured Ep, pp-coin, σ(E, θ); deduced Gamow-Teller strength distributions. 58Ni deduced astrophysical electron capture rates.
doi: 10.1016/S0375-9474(03)00982-5
2002BE46 Phys.Rev. C65, 064001 (2002) M.Betigeri, J.Bojowald, A.Budzanowski, A.Chatterjee, J.Ernst, L.Freindl, D.Frekers, W.Garske, K.Grewer, A.Hamacher, J.Ilieva, L.Jarczyk, K.Kilian, S.Kliczewski, W.Klimala, D.Kolev, T.Kutsarova, J.Lieb, H.Machner, A.Magiera, R.Maier, H.Nann, J.Niskanen, D.Prasuhn, L.Pentchev, D.Protic, B.Razen, P.von Rossen, B.J.Roy, R.Siudak, A.Strzalkowski, R.Tsenov, K.Zwoll Measurement of the pp → ppπ0 Reaction at 850 MeV/c and Partial Wave Cross Sections NUCLEAR REACTIONS 1H(p, pπ0), E at 850 MeV/c; measured missing mass, σ(E); deduced σ. Comparison with previous results, model predictions.
doi: 10.1103/PhysRevC.65.064001
2002RA12 Phys.Rev. C65, 044323 (2002) S.Rakers, C.Baumer, D.Frekers, R.Schmidt, A.M.van den Berg, V.M.Hannen, M.N.Harakeh, M.A.de Huu, H.J.Wortche, D.De Frenne, M.Hagemann, J.Heyse, E.Jacobs, Y.Fujita Gamow-Teller Matrix Elements from the 12C(d, 2He) and 24Mg(d, 2He) Reactions at 170 MeV NUCLEAR REACTIONS 12C, 24Mg(d, 2p), E=170 MeV; measured Ep, pp-coin, σ(E, θ), angular correlations. 12C, 24Mg deduced Gamow-Teller matrix elements. DWBA analysis.
doi: 10.1103/PhysRevC.65.044323
2002RA15 Nucl.Instrum.Methods Phys.Res. A481, 253 (2002) S.Rakers, F.Ellinghaus, R.Bassini, C.Baumer, A.M.van den Berg, D.Frekers, D.De Frenne, M.Hagemann, V.M.Hannen, M.N.Harakeh, M.Hartig, R.Henderson, J.Heyse, M.A.de Huu, E.Jacobs, M.Mielke, J.M.Schippers, R.Schmidt, S.Y.van der Werf, H.J.Wortche Measuring the (d, 2He) Reaction with the Focal-Plane Detection System of the BBS Magnetic Spectrometer at AGOR NUCLEAR REACTIONS 12C, 24Mg(d, 2p), E=170 MeV; measured proton spectra, correlations. 12B, 24Na deduced levels, J, π.
doi: 10.1016/S0168-9002(01)01365-1
2002RE15 Phys.Lett. 532B, 179 (2002) B.Reitz, A.M.van den Berg, D.Frekers, F.Hofmann, M.de Huu, Y.Kalmykov, H.Lenske, P.von Neumann-Cosel, V.Yu.Ponomarev, S.Rakers, A.Richter, G.Schrieder, K.Schweda, J.Wambach, H.J.Wortche Direct Evidence for an Orbital Magnetic Quadrupole Twist Mode in Nuclei NUCLEAR REACTIONS 58Ni(e, e'), E=65.4 MeV; 58Ni(p, p'), E=172 MeV; measured particle spectra, σ(E, θ). 58Ni deduced orbital M2 twist mode. Quasiparticle-phonon model, hydrodynamical model calculations.
doi: 10.1016/S0370-2693(02)01485-5
2001BA18 Phys.Rev. C63, 037601 (2001) C.Baumer, R.Bassini, A.M.van den Berg, D.De Frenne, D.Frekers, M.Hagemann, V.M.Hannen, M.N.Harakeh, J.Heyse, M.A.de Huu, E.Jacobs, M.Mielke, S.Rakers, R.Schmidt, H.Sohlbach, H.J.Wortche Deuteron Elastic and Inelastic Scattering from 12C, 24Mg, and 58Ni at 170 MeV NUCLEAR REACTIONS 12C, 24Mg, 58Ni(d, d), (d, d'), E=170 MeV; measured σ(E, θ); deduced optical model parameters.
doi: 10.1103/PhysRevC.63.037601
2001BE13 Phys.Rev. C63, 044011 (2001) M.Betigeri, J.Bojowald, A.Budzanowski, A.Chatterjee, J.Ernst, L.Freindl, D.Frekers, W.Garske, K.Grewer, A.Hamacher, J.Ilieva, L.Jarczyk, K.Kilian, S.Kliczewski, W.Klimala, D.Kolev, T.Kutsarova, J.Lieb, H.Machner, A.Magiera, H.Nann, L.Pentchev, D.Protic, B.Razen, P.von Rossen, B.J.Roy, R.Siudak, A.Strzalkowski, R.Tsenov, K.Zwoll Differential Cross Sections Measurement for the pp → dπ+ Reaction at 850 MeV/c NUCLEAR REACTIONS 1H(p, π+), E at 850 MeV/c; measured missing mass spectra, σ, σ(q), anisotropy. Comparison with earlier data and with phase-shift calculations.
doi: 10.1103/PhysRevC.63.044011
2001BE35 Nucl.Phys. A690, 473 (2001) M.Betigeri, J.Bojowald, A.Budzanowski, A.Chatterjee, J.Ernst, L.Freindl, D.Frekers, W.Garske, K.Grewer, A.Hamacher, J.Ilieva, L.Jarczyk, K.Kilian, S.Kliczewski, W.Klimala, D.Kolev, T.Kutsarova, J.Lieb, H.Machner, A.Magiera, H.Nann, L.Pentchev, H.S.Plendl, D.Protic, B.Razen, P.von Rossen, B.J.Roy, R.Siudak, J.Smyrski, R.V.Srikantiah, A.Strzalkowski, R.Tsenov, K.Zwoll, and the GEM Collaboration Simultaneous Measurements of the p + d → (A = 3) + π Reactions NUCLEAR REACTIONS 2H(p, π+), (p, π0), E at 750, 800, 850 MeV/c; measured pion missing mass distributions, σ(θ), total σ; deduced isospin symmetry conservation features. Simultaneous measurement, comparisons with previous results and model predictions.
doi: 10.1016/S0375-9474(00)00699-0
2001BE37 Nucl.Phys. A689, 398c (2001) M.Betigeri, J.Bojowald, A.Budzanowski, A.Chatterjee, J.Ernst, L.Freindl, D.Frekers, W.Garske, K.Grewer, A.Hamacher, J.Ilieva, L.Jarczyk, K.Kilian, S.Kliczewski, W.Klimala, D.Kolev, T.Kutsarova, J.Lieb, H.Machner, A.Magiera, H.Nann, L.Pentchev, H.S.Plendl, D.Protic, B.Razen, P.von Rossen, B.J.Roy, R.Siudak, A.Strzalkowski, R.Tsenov, K.Zwoll, and the GEM Collaboration Meson Production in p + d Reactions NUCLEAR REACTIONS 2H(p, X)3He, E not given; measured η meson production σ(θ). 2H(p, π0), E at 850, 1050 MeV/c; measured σ(θ). Comparisons with model predictions.
doi: 10.1016/S0375-9474(01)00864-8
2000BE15 Nucl.Phys. A663-664, 963c (2000) M.Betigeri, J.Bojowald, A.Budzanowski, A.Chatterjee, J.Ernst, L.Freindl, D.Frekers, W.Garske, K.Grewer, A.Hamacher, J.Ilieva, L.Jarczyk, K.Kilian, S.Kliczewski, W.Klimala, D.Kolev, T.Kutsarova, J.Lieb, H.Machner, A.Magiera, H.Nann, L.Pentchev, H.S.Plendl, D.Protic, B.Razen, P.von Rossen, B.J.Roy, R.Siudak, A.Strazalkowski, R.Tsenov, K.Zwoll, and the GEM Collaboration Test of Charge Independence in p + d → (A = 3) + Pion Reactions NUCLEAR REACTIONS 2H(p, π+), (p, π0), E at 850 MeV/c; measured σ(θ); deduced ratio. Simultaneous measurement.
doi: 10.1016/S0375-9474(99)00808-8
1999BE35 Nucl.Instrum.Methods Phys.Res. A426, 249 (1999) M.G.Betigeri, J.Bojowald, A.Budzanowski, A.Chatterjee, M.Drochner, J.Ernst, S.Fortsch, L.Freindl, D.Frekers, W.Garske, K.Grewer, A.Hamacher, M.Hawash, S.Igel, I.Ilieva, R.Jahn, L.Jarczyk, G.Kemmerling, K.Kilian, S.Kliczewski, W.Klimala, D.Kolev, T.Kutsarova, B.J.Lieb, G.Lippert, H.Machner, A.Magiera, R.Maier, H.Nann, H.S.Plendl, D.Protic, B.Razen, P.von Rossen, B.Roy, R.Siudak, J.Smyrski, A.Strzalkowski, R.Tsenov, P.A.Zolnierczuk, K.Zwoll, and the GEM Collaboration Precise Momentum Determination of the External COSY Proton Beam Near 1930 MeV/c NUCLEAR REACTIONS 1H(p, π+), E at 1930.5 MeV/c; measured pion, deuteron momenta; deduced absolute beam momentum.
doi: 10.1016/S0168-9002(99)00014-5
1998LO12 Phys.Rev. C57, 3191 (1998) S.A.Long, B.M.Spicer, K.J.Raywood, R.Abegg, W.P.Alford, A.Celler, D.Frekers, P.E.Green, O.Hausser, R.L.Helmer, R.S.Henderson, K.H.Hicks, K.P.Jackson, R.G.Jeppesen, N.S.P.King, C.A.Miller, M.A.Moinester, V.C.Officer, G.G.Shute, A.Trudel, M.C.Vetterli, A.I.Yavin, S.Yen Spin-Isovector Giant Resonances Induced by (n, p) Reactions on Heavy Nuclei NUCLEAR REACTIONS 120Sn, 181Ta(n, p), E=298 MeV; 238U(n, p), E=318 MeV; measured σ(Ep, θ). 90Zr, 208Pb(n, p), E=198 MeV; analyzed σ(Ep, θ). 90Y, 120In, 181Hf, 208Tl, 238Pa deduced L=0, 1, 2, 3 giant resonances energy distributions, quasi-free contributions, comparison with sum rules for L=1, 3. Multipole decomposition procedure.
doi: 10.1103/PhysRevC.57.3191
1998MI09 Phys.Rev. C57, 1756 (1998) C.A.Miller, K.H.Hicks, R.Abegg, M.Ahmad, N.S.Chant, D.Frekers, P.W.Green, L.G.Greeniaus, D.A.Hutcheon, P.Kitching, D.J.Mack, W.J.McDonald, W.C.Olsen, R.Schubank, P.G.Roos, Y.Ye Spin-Dependent Scattering of Deeply Bound Nucleons NUCLEAR REACTIONS 16O(polarized p, 2p), E=504 MeV; measured σ(θ), A(y)(θ, E), spin transfer observables; deduced NN interaction medium effects. DWIA analysis.
doi: 10.1103/PhysRevC.57.1756
1997HE06 Phys.Rev. C55, 2802 (1997) R.L.Helmer, M.A.Punyasena, R.Abegg, W.P.Alford, A.Celler, S.El-Kateb, J.Engel, D.Frekers, R.S.Henderson, K.P.Jackson, S.Long, C.A.Miller, W.C.Olsen, B.M.Spicer, A.Trudel, M.C.Vetterli Gamow-Teller Strength from the 76Se(n, p)76As Reaction: Implications for the double β decay of 76Ge NUCLEAR REACTIONS 76Se(n, p), E=198 MeV; measured σ(θ). 76As deduced Gamow-Teller strength distribution. 76Ge deduced 2ν-accompanied 2β-decay T1/2. Quasi-particle RPA comparison, other data analyzed.
doi: 10.1103/PhysRevC.55.2802
1997IG02 Nucl.Phys. A626, 447c (1997) S.Igel, A.Budzanowski, M.Drochner, D.Frekers, W.Garske, K.Grewer, A.Hamacher, G.Kemmerling, K.Kilian, S.Kliczewski, H.Machner, H.Plendl, D.Protic, B.Razen, R.V.Srikantiah, K.Zwoll A Solid-State Spectrometer for Cooled Beams with High Acceptance and Resolution in Space and Energy
doi: 10.1016/S0375-9474(97)00568-X
1997RA33 Nucl.Phys. A626, 63c (1997) B.Razen, M.Drochner, J.Ernst, S.Fortsch, L.Freindl, D.Frekers, W.Garske, K.Grewer, S.Igel, R.Jahn, L.Jarczyk, G.Kemmerling, K.Kilian, S.Kliczewski, W.Klimala, D.Kolev, T.Kutsarova, G.Lippert, H.Machner, R.Maier, Ch.Nake, P.von Rossen, K.Scho, R.Siudak, J.Smyrski, A.Strzalkowski, R.Tsenov, P.A.Zolnierczuk, K.Zwoll pp → dπ+ Precise Angular Distributions Close to Threshold from 0.3 to 5 MeV NUCLEAR REACTIONS 1H(p, dπ+), E at 789.9-800.5 MeV/c; measured σ, σ(θ), anisotropies.
doi: 10.1016/S0375-9474(97)00521-6
1996LA09 Phys.Rev. C53, 1774 (1996) B.Larson, K.Hicks, O.Hausser, R.Abegg, W.Alford, A.Celler, D.Frekers, R.Helmer, R.Henderson, K.P.Jackson, R.Jeppesen, J.Mildenberger, C.A.Miller, B.Pointon, R.Schubank, M.Vetterli, S.Yen Polarization Transfer in Inelastic Proton Scattering from 4- States in 16O at 350 MeV NUCLEAR REACTIONS 16O(polarized p, p'), E=350 MeV; measured σ(θ), analyzing powers, spin observables. DWIA analysis.
doi: 10.1103/PhysRevC.53.1774
1994EL05 Phys.Rev. C49, 3128 (1994) S.El-Kateb, K.P.Jackson, W.P.Alford, R.Abegg, R.E.Azuma, B.A.Brown, A.Celler, D.Frekers, O.Hausser, R.Helmer, R.S.Henderson, K.H.Hicks, R.Jeppesen, J.D.King, K.Raywood, G.G.Shute, B.M.Spicer, A.Trudel, M.Vetterli, S.Yen Spin-Isospin Strength Distributions for fp Shell Nuclei: Results for the 55Mn(n, p), 56Fe(n, p), and 58Ni(n, p) reactions at 198 MeV NUCLEAR REACTIONS 55Mn, 56Fe, 58Ni(n, p), E=198 MeV; measured σ(θ, Ep). 55Mn, 56Fe, 58Ni deduced Gamow-Teller transition strength distribution.
doi: 10.1103/PhysRevC.49.3128
1993AL21 Phys.Rev. C48, 2818 (1993) W.P.Alford, B.A.Brown, S.Burzynski, A.Celler, D.Frekers, R.Helmer, R.Henderson, K.P.Jackson, K.Lee, A.Rahav, A.Trudel, M.C.Vetterli Spin-Isospin Strength Distributions in f-p Shell Nuclei: A study of the 51V(n, p) and 59Co(n, p) reactions at 198 MeV NUCLEAR REACTIONS 51V, 59Co(n, p), E=198 MeV; measured σ(θ, Ep). 51Ti, 59Fe deduced Gamow-Teller, spin-dipole strength distribution. Multipole analysis, model comparison.
doi: 10.1103/PhysRevC.48.2818
1993CE03 Phys.Rev. C47, 1563 (1993) A.Celler, S.Yen, W.P.Alford, R.Abegg, B.A.Brown, S.Burzynski, D.Frekers, O.Hausser, R.Helmer, R.S.Henderson, K.Hicks, K.P.Jackson, R.Jeppesen, C.A.Miller, M.A.Moinester, B.W.Pointon, A.Trudel, M.C.Vetterli Search for Gamow-Teller Strength in the Continuum via the 3He(n, p)3H Reaction at 288 MeV NUCLEAR REACTIONS 3He(n, p), E=288 MeV; measured σ(θ), σ(θ, E); deduced model parameters, continuum Gamow-Teller transition strength upper limit.
doi: 10.1103/PhysRevC.47.1563
1993MA60 Acta Phys.Pol. B24, 1555 (1993) H.Machner, A.Budzanowski, P.Cloth, H.Dabrowski, A.Djaloeis, M.Drochner, V.Druke, J.Ernst, W.Erven, D.Filges, D.Frekers, D.Grzonka, J.Holzer, St.Igel, R.Jahn, L.Jarczyk, K.Kilian, J.Konin, T.Kutsarova, M.Kystrin, B.J.Lieb, W.Meiling, H.P.Morsch, Ch.Nake, H.S.Plendl, D.Protic, G.Riepe, E.Roderburg, P.von Rossen, R.Schwierz, J.Smyrski, A.Strzalkowski, P.Turek, K.H.Watzlawik, K.Zwoll, and the GEM Collaboration Meson Production Studied with the GEM Detector NUCLEAR REACTIONS 2H(p, π0), (p, X), E not given; compiled, reviewed π0, eta production σ data, analyses. 2H(p, X), E=903.4, 1091.6 MeV; measured missing mass spectra. Ge wall plus magnetic spectrometer. Other aspects discussed.
1993PO05 Phys.Rev. C47, 2751 (1993) R.Pourang, J.W.Watson, R.Abegg, M.Ahmad, W.P.Alford, B.D.Anderson, A.R.Baldwin, A.Celler, D.Frekers, O.Hausser, R.Helmer, R.Henderson, K.Hicks, R.Jeppesen, K.P.Jackson, N.S.P.King, R.Madey, C.A.Miller, M.Moinester, M.C.Vetterli, S.Yen High-Spin Stretched States Excited in (n, p) Reactions at 300 MeV NUCLEAR REACTIONS 12C, 28Si, 120Sn(n, p), E=300 MeV; measured spectra, σ(θ). 12B, 28Al, 120In deduced stretched states normalizations. DWIA analysis.
doi: 10.1103/PhysRevC.47.2751
1992VE01 Phys.Rev. C45, 997 (1992) M.C.Vetterli, K.P.Jackson, A.Celler, J.Engel, D.Frekers, O.Hausser, R.Helmer, R.Henderson, K.H.Hicks, R.G.Jeppesen, B.Larson, B.Pointon, A.Trudel, S.Yen 70,72Ge(n, p)70,72Ga Reactions: Suppression of Gamow-Teller strength near N = 40 NUCLEAR REACTIONS 70,72Ge(n, p), E=200 MeV; measured σ(θ, E). 70,72Ga deduced Gamow-Teller transition strength quenching.
doi: 10.1103/PhysRevC.45.997
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