NSR Query Results
Output year order : Descending NSR database version of March 21, 2024. Search: Author = J.Fallis Found 41 matches. 2024PA09 Phys.Rev. C 109, 015802 (2024) S.N.Paneru, C.R.Brune, D.Connolly, D.Odell, M.Poudel, D.R.Phillips, J.Karpesky, B.Davids, C.Ruiz, A.Lennarz, U.Greife, M.Alcorta, R.Giri, M.Lovely, M.Bowry, M.Delgado, N.E.Esker, A.B.Garnsworthy, C.Seeman, P.Machule, J.Fallis, A.A.Chen, F.Laddaran, A.Firmino, C.Weinerman Elastic scattering of 3He+4He with the SONIK scattering chamber
doi: 10.1103/PhysRevC.109.015802
2022LO01 Phys.Rev.Lett. 128, 042701 (2022) G.Lotay, A.Lennarz, C.Ruiz, C.Akers, A.A.Chen, G.Christian, D.Connolly, B.Davids, T.Davinson, J.Fallis, D.A.Hutcheon, P.Machule, L.Martin, D.J.Mountford, A.St.J.Murphy Radiative Capture on Nuclear Isomers: Direct Measurement of the 26mAl(p, γ)27Si Reaction NUCLEAR REACTIONS 1H(26Al, γ), E=390 keV/nucleon; measured reaction products, Eγ, Iγ; deduced resonance energies and parameters, astrophysical reaction rates. Comparison with available data.
doi: 10.1103/PhysRevLett.128.042701
2022PS02 Phys.Rev.Lett. 129, 162701 (2022) A.Psaltis, A.A.Chen, R.Longland, D.S.Connolly, C.R.Brune, B.Davids, J.Fallis, R.Giri, U.Greife, D.A.Hutcheon, L.Kroll, A.Lennarz, J.Liang, M.Lovely, M.Luo, C.Marshall, S.N.Paneru, A.Parikh, C.Ruiz, A.C.Shotter, M.Williams Direct Measurement of Resonances in 7Be(α, γ)11C Relevant to νp-Process Nucleosynthesis NUCLEAR REACTIONS 4He(7Be, γ)11C, E not given; measured reaction products, Eγ, Iγ; deduced resonance energies and strengths, thermonuclear reaction rates. Comparison with available data. DRAGON recoil separator, TRIUMF.
doi: 10.1103/PhysRevLett.129.162701
2022PS03 Phys.Rev. C 106, 045805 (2022) A.Psaltis, A.A.Chen, R.Longland, D.S.Connolly, C.R.Brune, B.Davids, J.Fallis, R.Giri, U.Greife, D.A.Hutcheon, L.Kroll, A.Lennarz, J.Liang, M.Lovely, M.Luo, C.Marshall, S.N.Paneru, A.Parikh, C.Ruiz, A.C.Shotter, M.Williams First inverse kinematics measurement of resonances in 7Be(α, γ)11C relevant to neutrino-driven wind nucleosynthesis using DRAGON NUCLEAR REACTIONS 4He(7Be, γ), E=351-464 keV/nucleon; measured reaction products, Eγ, Iγ, γ-sum, (particle)γ-coin; deduced 1110-, 1115- and 876-keV resonances strength, thermonuclear reaction rate (T=0.1-10 GK), astrophysical S-factor. Discussed the impact of newly determined rates on studies of nucleosynthesis in neutrino-driven winds. Helium-filled windowless gas target surrounded by γ-ray array of 30 BGO scintillator crystals at DRAGON recoil separator (TRIUMF).
doi: 10.1103/PhysRevC.106.045805
2020FA06 Phys.Lett. B 807, 135575 (2020) J.Fallis, C.Akers, A.M.Laird, A.Simon, A.Spyrou, G.Christian, D.Connolly, U.Hager, D.A.Hutcheon, A.Lennarz, P.O'Malley, S.J.Quinn, J.Riley, A.Rojas, C.Ruiz, M.Williams First measurement in the Gamow window of a reaction for the γ process in inverse kinematics: 76Se(α, γ)80Kr NUCLEAR REACTIONS 4He(76Se, γ)80Kr, E=1.4-1.5 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ, reaction rates. Comparison with calculations.
doi: 10.1016/j.physletb.2020.135575
2019TA20 Phys.Lett. B 798, 134894 (2019) M.P.Taggart, C.Akers, A.M.Laird, U.Hager, C.Ruiz, D.A.Hutcheon, M.A.Bentley, J.R.Brown, L.Buchmann, A.A.Chen, J.Chen, K.A.Chipps, A.Choplin, J.M.D'Auria, B.Davids, C.Davis, C.Aa.Diget, L.Erikson, J.Fallis, S.P.Fox, U.Frischknecht, B.R.Fulton, N.Galinski, U.Greife, R.Hirschi, D.Howell, L.Martin, D.Mountford, A.St.J.Murphy, D.Ottewell, M.Pignatari, S.Reeve, G.Ruprecht, S.Sjue, L.Veloce, M.Williams A direct measurement of the 17O(α, γ)21Ne reaction in inverse kinematics and its impact on heavy element production NUCLEAR REACTIONS 4He(17O, γ)21Ne, E=160, 202, 290, 360 keV/nucleon; measured reaction products, Eγ, Iγ; deduced resonance strengths, S-factors, astrophysical reaction rates.
doi: 10.1016/j.physletb.2019.134894
2018CH08 Phys.Rev. C 97, 025802 (2018) G.Christian, G.Lotay, C.Ruiz, C.Akers, D.S.Burke, W.N.Catford, A.A.Chen, D.Connolly, B.Davids, J.Fallis, U.Hager, D.Hutcheon, A.Mahl, A.Rojas, X.Sun Direct measurement of astrophysically important resonances in 38K(p, γ) 39Ca NUCLEAR REACTIONS 1H(38K, γ)39Ca, E=15.58, 20.56, 27.17 MeV, [38K secondary beam produced at ISAC-I, TRIUMF facility by impinging 500 MeV protons on a high-power TiC production target]; measured recoils using DRAGON spectrometer, prompt Eγ, Iγ, (recoil)γ-coin using bismuth-germanate scintillator array for γ detection. Windowless hydrogen gas target; deduced energies of resonances, resonance strengths for the 386-, 515- and 689-keV proton resonances, astrophysical reaction rates for temperature range of 150-500 MK, abundances of 38Ar, 39K, and 40Ca in the hottest oxygen-neon novae.
doi: 10.1103/PhysRevC.97.025802
2018CO04 Phys.Rev. C 97, 035801 (2018) D.Connolly, P.D.O'Malley, C.Akers, A.A.Chen, G.Christian, B.Davids, L.Erikson, J.Fallis, B.R.Fulton, U.Greife, U.Hager, D.A.Hutcheon, S.Ilyushkin, A.M.Laird, A.Mahl, C.Ruiz Direct measurement of resonance strengths in 34S(α, γ)38Ar at astrophysically relevant energies using the DRAGON recoil separator NUCLEAR REACTIONS 4He(34S, γ)38Ar, E=20.23-25.75 MeV; measured Eγ, Iγ, 34S and 38Ar recoils, (recoil)γ-coin using DRAGON recoil mass separator at ISAC-I, TRIUMF. 38Ar; deduced levels, resonance energies, resonance strengths, thermonuclear reaction rates. Comparison with theoretical calculations using NON-SMOKER Hauser-Feshbach statistical model, and REACLIB and STARLIB library rates.
doi: 10.1103/PhysRevC.97.035801
2017KU11 Phys.Rev.Lett. 118, 262502 (2017) A.Kumar, R.Kanungo, A.Calci, P.Navratil, A.Sanetullaev, M.Alcorta, V.Bildstein, G.Christian, B.Davids, J.Dohet-Eraly, J.Fallis, A.T.Gallant, G.Hackman, B.Hadinia, G.Hupin, S.Ishimoto, R.Krucken, A.T.Laffoley, J.Lighthall, D.Miller, S.Quaglioni, J.S.Randhawa, E.T.Rand, A.Rojas, R.Roth, A.Shotter, J.Tanaka, I.Tanihata, C.Unsworth Nuclear Force Imprints Revealed on the Elastic Scattering of Protons with 10C NUCLEAR REACTIONS 10C(p, p), E(cm)=4.15, 4.4 eV; measured reaction products, Ep, Ip; deduced σ(θ). Comparison with ab initio no-core shell model with continuum calculations.
doi: 10.1103/PhysRevLett.118.262502
2016AK05 Phys.Rev. C 94, 065803 (2016) C.Akers, A.M.Laird, B.R.Fulton, C.Ruiz, D.W.Bardayan, L.Buchmann, G.Christian, B.Davids, L.Erikson, J.Fallis, U.Hager, D.Hutcheon, L.Martin, A.St.J.Murphy, K.Nelson, D.Ottewell, A.Rojas, A.Spyrou Measurement of radiative proton capture on 18F and implications for oxygen-neon novae reexamined NUCLEAR REACTIONS 1H(18F, γ)19Ne, E=0.717 MeV/nucleon, [secondary 18F beam at ISAC-TRIUMF by 500 MeV proton beam incident on a silicon carbide target]; measured reaction products, extracted and ionized in a FEBIAD ion source, and filtered with a high-resolution mass separator, particle spectra using DRAGON recoil separator. 19Ne; deduced levels, resonances, 665-keV resonance strength, Γγ, resonant contributions to reaction rates as a function of temperature in the peak nova range; calculated reaction rates for T9=0.03 to 0.5. R-matrix analysis.
doi: 10.1103/PhysRevC.94.065803
2016KI03 Phys.Rev. C 93, 025802 (2016) O.S.Kirsebom, P.Bender, A.Cheeseman, G.Christian, R.Churchman, D.S.Cross, B.Davids, L.J.Evitts, J.Fallis, N.Galinski, A.B.Garnsworthy, G.Hackman, J.Lighthall, S.Ketelhut, P.Machule, D.Miller, S.T.Nielsen, C.R.Nobs, C.J.Pearson, M.M.Rajabali, A.J.Radich, A.Rojas, C.Ruiz, A.Sanetullaev, C.D.Unsworth, C.Wrede Measurement of lifetimes in 23MG NUCLEAR REACTIONS 3He(24Mg, α), E=3.125 MeV/nucleon; measured Eα, Iα, Eγ, Iγ, αγ-coincidence, level half-lives by DSAM and line-shape analysis. Experiment performed at ISAC-II-TRIUMF. Monte-Carlo simulations. 23Mg; deduced levels, resonances, resonance strengths. Relevance to 22Na(p, γ)23Mg reaction in classical novae. Comparison with previous measurements of level half-lives.
doi: 10.1103/PhysRevC.93.025802
2016KL04 Phys.Rev. C 93, 045807 (2016) R.Klawitter, A.Bader, M.Brodeur, U.Chowdhury, A.Chaudhuri, J.Fallis, A.T.Gallant, A.Grossheim, A.A.Kwiatkowski, D.Lascar, K.G.Leach, A.Lennarz, T.D.Macdonald, J.Pearkes, S.Seeraji, M.C.Simon, V.V.Simon, B.E.Schultz, J.Dilling Mass measurements of neutron-rich Rb and Sr isotopes ATOMIC MASSES 98,99,100Rb, 98,99,100,101Sr; measured cyclotron frequency using the time-of-flight ion-cyclotron-resonance technique (TOF-ICR) using TITAN Penning-trap mass spectrometer at ISAC-TRIUMF; deduced mass excesses. Comparison with previous measurements and AME-2012 evaluation. Rb and Sr ions produced in U(p, F), E=480 MeV reaction and separated by a dipole magnet.
doi: 10.1103/PhysRevC.93.045807
2016LO03 Phys.Rev.Lett. 116, 132701 (2016) G.Lotay, G.Christian, C.Ruiz, C.Akers, D.S.Burke, W.N.Catford, A.A.Chen, D.Connolly, B.Davids, J.Fallis, U.Hager, D.A.Hutcheon, A.Mahl, A.Rojas, X.Sun Direct Measurement of the Astrophysical 38K(p, γ)39Ca Reaction and Its Influence on the Production of Nuclides toward the End Point of Nova Nucleosynthesis NUCLEAR REACTIONS 1H(38K, γ), E=386, 515, 689 keV; measured reaction products, Eγ, Iγ; deduced yields, resonance parameters, astrophysical reaction rates. Comparison with available data.
doi: 10.1103/PhysRevLett.116.132701
2016SA13 Phys.Lett. B 755, 481 (2016) A.Sanetullaev, R.Kanungo, J.Tanaka, M.Alcorta, C.Andreoiu, P.Bender, A.A.Chen, G.Christian, B.Davids, J.Fallis, J.P.Fortin, N.Galinski, A.T.Gallant, P.E.Garrett, G.Hackman, B.Hadinia, S.Ishimoto, M.Keefe, R.Krucken, J.Lighthall, E.McNeice, D.Miller, J.Purcell, J.S.Randhawa, T.Roger, A.Rojas, H.Savajols, A.Shotter, I.Tanihata, I.J.Thompson, C.Unsworth, P.Voss, Z.Wang Investigation of the role of 10Li resonances in the halo structure of 11Li(p, d)10Li through the transfer reaction NUCLEAR REACTIONS 1H(11Li, d), (11Li, p), E=5.7 MeV/nucleon; measured reaction products; deduced resonance parameters, spectroscopic factor, σ(θ). DWBA analysis.
doi: 10.1016/j.physletb.2016.02.060
2015KA15 Phys.Rev.Lett. 114, 192502 (2015) R.Kanungo, A.Sanetullaev, J.Tanaka, S.Ishimoto, G.Hagen, T.Myo, T.Suzuki, C.Andreoiu, P.Bender, A.A.Chen, B.Davids, J.Fallis, J.P.Fortin, N.Galinski, A.T.Gallant, P.E.Garrett, G.Hackman, B.Hadinia, G.Jansen, M.Keefe, R.Krucken, J.Lighthall, E.McNeice, D.Miller, T.Otsuka, J.Purcell, J.S.Randhawa, T.Roger, A.Rojas, H.Savajols, A.Shotter, I.Tanihata, I.J.Thompson, C.Unsworth, P.Voss, Z.Wang Evidence of Soft Dipole Resonance in 11Li with Isoscalar Character NUCLEAR REACTIONS 2H(11Li, X)7Li/8Li/9Li/10Li/11Li, E=5.5 MeV/nucleon; measured reaction products. 11Li; deduced yields, σ(θ), excitation energy, soft dipole resonance. Comparison with ab initio calculations in the coupled cluster framework.
doi: 10.1103/PhysRevLett.114.192502
2015MA44 Phys.Rev.Lett. 115, 062701 (2015) V.Margerin, G.Lotay, P.J.Woods, M.Aliotta, G.Christian, B.Davids, T.Davinson, D.T.Doherty, J.Fallis, D.Howell, O.S.Kirsebom, D.J.Mountford, A.Rojas, C.Ruiz, J.A.Tostevin Inverse Kinematic Study of the 26gAl(d, p)27Al Reaction and Implications for Destruction of 26Al in Wolf-Rayet and Asymptotic Giant Branch Stars NUCLEAR REACTIONS 2H(26Al, p), E<500 MeV; measured reaction products; deduced energy levels, J, π. spectroscopic factor, astrophysical reaction rates. Comparison with available data.
doi: 10.1103/PhysRevLett.115.062701
2015TO10 Phys.Rev.Lett. 115, 052702 (2015) J.R.Tomlinson, J.Fallis, A.M.Laird, S.P.Fox, C.Akers, M.Alcorta, M.A.Bentley, G.Christian, B.Davids, T.Davinson, B.R.Fulton, N.Galinski, A.Rojas, C.Ruiz, N.de Sereville, M.Shen, A.C.Shotter Measurement of 23Na(α, p)26Mg at Energies Relevant to 26Al Production in Massive Stars NUCLEAR REACTIONS 23Na(α, p), E=1.1 MeV; measured reaction products, Ep, Ip; deduced σ, reaction rates. Comparison with the SMARAGD HF calculation.
doi: 10.1103/PhysRevLett.115.052702
2014CH14 Eur.Phys.J. A 50, 75 (2014) G.Christian, C.Akers, D.Connolly, J.Fallis, D.Hutcheon, K.Olchanski, C.Ruiz Design and commissioning of a timestamp-based data acquisition system for the DRAGON recoil mass separator
doi: 10.1140/epja/i2014-14075-0
2014CH15 Eur.Phys.J. A 50, 74 (2014) G.Christian, C.Akers, D.Connolly, J.Fallis, D.Hutcheon, K.Olchanski, C.Ruiz High statistic study of the reaction γp → pπ0η
doi: 10.1140/epja/i2014-14074-1
2014FA01 Hyperfine Interactions 225, 219 (2014) Nuclear astrophysics measurements with DRAGON
doi: 10.1007/s10751-013-0901-y
2014GO03 Phys.Rev. C 89, 014305 (2014) A.Goasduff, S.Courtin, F.Haas, D.Lebhertz, D.G.Jenkins, J.Fallis, C.Ruiz, D.A.Hutcheon, P.-A.Amandruz, C.Davis, U.Hager, D.Ottewell, G.Ruprecht The 12C(16O, γ28Si) radiative capture reaction at sub-barrier energies NUCLEAR REACTIONS 12C(16O, γ)28Si, E=15.7 MeV; measured Eγ, Iγ, (28Si)γ-coin, γ-ray angular distributions, radiative capture and fusion cross sections using ISAC-I accelerator, BGO γ detector array and DRAGON electromagnetic spectrometer at TRIUMF facility; deduced branching ratio versus excitation energy for the 2+ entrance state, enhancement of M1 transitions to the 1+ and 2+ states at 11.45 MeV and 11.43 MeV, and J(J+1) systematics. Comparisons with Monte-Carlo GEANT3 simulations and previous experimental studies.
doi: 10.1103/PhysRevC.89.014305
2014MA15 Phys.Lett. B 731, 358 (2014) V.Margerin, A.St.J.Murphy, T.Davinson, R.Dressler, J.Fallis, A.Kankainen, A.M.Laird, G.Lotay, D.J.Mountford, C.D.Murphy, C.Seiffert, D.Schumann, T.Stowasser, T.Stora, C.H.-T.Wang, P.J.Woods Study of the 44Ti(α, p)47V reaction and implications for core collapse supernovae NUCLEAR REACTIONS 4He(44Ti, p), E=2.1 MeV/nucleon; measured reaction products, Ep, Ip; deduced σ. Comparison with NON-SMOKER calculations, available data.
doi: 10.1016/j.physletb.2014.03.003
2013AK03 Phys.Rev.Lett. 110, 262502 (2013) C.Akers, A.M.Laird, B.R.Fulton, C.Ruiz, D.W.Bardayan, L.Buchmann, G.Christian, B.Davids, L.Erikson, J.Fallis, U.Hager, D.Hutcheon, L.Martin, A.St.J.Murphy, K.Nelson, A.Spyrou, C.Stanford, D.Ottewell, A.Rojas Measurement of Radiative Proton Capture on 18F and Implications for Oxygen-Neon Novae NUCLEAR REACTIONS 1H(18F, γ)19Ne, E=12.9 MeV; measured reaction products, nuclear recoils, time of flight; deduced reaction rates, resonance strength. Comparison with available data.
doi: 10.1103/PhysRevLett.110.262502
2013CH43 Phys.Rev. C 88, 038801 (2013) G.Christian, D.Hutcheon, C.Akers, D.Connolly, J.Fallis, C.Ruiz Strength of the Ec.m.=1113 keV resonance in 20Ne(p, γ)21Na NUCLEAR REACTIONS 1H(20Ne, γ)21Na, E(cm)=1163 keV/nucleon; measured recoil 21Na spectra, yield using DRAGON at ISAC-TRIUMF facility; deduced resonance strength of 1113-keV resonance, and compared to previous experimental measurements; discussed effect on s factor.
doi: 10.1103/PhysRevC.88.038801
2013FA10 Phys.Rev. C 88, 045801 (2013) J.Fallis, A.Parikh, P.F.Bertone, S.Bishop, L.Buchmann, A.A.Chen, G.Christian, J.A.Clark, J.M.D'Auria, B.Davids, C.M.Deibel, B.R.Fulton, U.Greife, B.Guo, U.Hager, C.Herlitzius, D.A.Hutcheon, J.Jose, A.M.Laird, E.T.Li, Z.H.Li, G.Lian, W.P.Liu, L.Martin, K.Nelson, D.Ottewell, P.D.Parker, S.Reeve, A.Rojas, C.Ruiz, K.Setoodehnia, S.Sjue, C.Vockenhuber, Y.B.Wang, C.Wrede Constraining nova observables: Direct measurements of resonance strengths in 33S(p, γ)34Cl NUCLEAR REACTIONS 1H(33S, γ)34Cl, E=194-514 MeV/nucleon; measured particle spectra, time-of-flight using DRAGON at ISAC-TRIUMF facility. 34Cl; deduced levels, resonances, resonance strengths, thermonuclear reaction rates for 33S(p, γ)34Cl reaction at T9=0.15-0.40, composition of 32,33,34S, 35,37Cl, 36,38Ar, 38,39K, 40Ca in oxygen-neon nova ejecta. Implications for nova nucleosynthesis.
doi: 10.1103/PhysRevC.88.045801
2013LI12 Phys.Rev.Lett. 110, 092502 (2013) G.Li, R.Segel, N.D.Scielzo, P.F.Bertone, F.Buchinger, S.Caldwell, A.Chaudhuri, J.A.Clark, J.E.Crawford, C.M.Deibel, J.Fallis, S.Gulick, G.Gwinner, D.Lascar, A.F.Levand, M.Pedretti, G.Savard, K.S.Sharma, M.G.Sternberg, T.Sun, J.Van Schelt, R.M.Yee, B.J.Zabransky Tensor Interaction Limit Derived From the α-β-ν(bar) Correlation in Trapped 8Li Ions RADIOACTIVITY 8Li(β-) [from 7Li(d, p), E=24 MeV]; measured decay products, Eα, Iα; deduced α-β-ν correlation in the Gamow-Teller decay, limit on tensor component contribution.
doi: 10.1103/PhysRevLett.110.092502
2013SI20 Eur.Phys.J. A 49, 60 (2013) A.Simon, J.Fallis, A.Spyrou, A.M.Laird, C.Ruiz, L.Buchmann, B.R.Fulton, D.Hutcheon, L.Martin, D.Ottewell, A.Rojas Radiative capture reactions with heavy beams: extending the capabilities of DRAGON
doi: 10.1140/epja/i2013-13060-5
2013SJ01 Nucl.Instrum.Methods Phys.Res. A700, 179 (2013) S.K.L.Sjue, B.S.Nara Singh, P.Adsley, L.Buchmann, M.Carmona-Gallardo, B.Davids, J.Fallis, B.R.Fulton, N.Galinski, U.Hager, M.Hass, D.Howell, D.A.Hutcheon, A.M.Laird, L.Martin, D.Ottewell, S.Reeve, C.Ruiz, G.Ruprecht, S.Triambak Beam suppression of the DRAGON recoil separator for 3He(α, γ)7Be NUCLEAR REACTIONS 3He(α, γ)7Be, E=6.542 MeV; measured reaction products, recoil spectra.; deduced yields, beam suppression. Comparison with available data.
doi: 10.1016/j.nima.2012.10.062
2013YE02 Phys.Rev.Lett. 110, 092501 (2013) R.M.Yee, N.D.Scielzo, P.F.Bertone, F.Buchinger, S.Caldwell, J.A.Clark, C.M.Deibel, J.Fallis, J.P.Greene, S.Gulick, D.Lascar, A.F.Levand, G.Li, E.B.Norman, M.Pedretti, G.Savard, R.E.Segel, K.S.Sharma, M.G.Sternberg, J.Van Schelt, B.J.Zabransky β-Delayed Neutron Spectroscopy Using Trapped Radioactive Ions RADIOACTIVITY 137I(β-n) [from 252Cf(SF)];measured decay products, TOF, Eβ, Iβ, Eγ, Iγ, En, In; deduced βn branching ratios. Linear Paul trap.
doi: 10.1103/PhysRevLett.110.092501
2012DR08 J.Phys.(London) G39, 105201 (2012) R.Dressler, M.Ayranov, D.Bemmerer, M.Bunka, Y.Dai, C.Lederer, J.Fallis, A.StJ.Murphy, M.Pignatari, D.Schumann, T.Stora, T.Stowasser, F.-K.Thielemann, P.J.Woods 44Ti, 26Al and 53Mn samples for nuclear astrophysics: the needs, the possibilities and the sources
doi: 10.1088/0954-3899/39/10/105201
2012HA10 Phys.Rev. C 85, 035803 (2012) U.Hager, L.Buchmann, B.Davids, J.Fallis, B.R.Fulton, N.Galinski, U.Greife, D.A.Hutcheon, D.Ottewell, A.Rojas, C.Ruiz, K.Setoodehnia Measurement of the 17O(p, γ)18F reaction rate at astrophysically relevant energies NUCLEAR REACTIONS 1H(17O, γ)18F, E(cm)=250-500 keV; measured 18F spectra, time-of-flight, energy loss, Eγ, Iγ, (18F)γ-coin; deduced levels, branching ratios to capture states, charge-state distributions, astrophysical S factors. DRAGON facility at TRIUMF. GEANT3 simulations for γ-ray events in BGO array. Comparison with earlier measurements.
doi: 10.1103/PhysRevC.85.035803
2012HA39 Phys.Rev. C 86, 055802 (2012) U.Hager, L.Buchmann, B.Davids, J.Fallis, U.Greife, D.A.Hutcheon, D.Irvine, D.Ottewell, A.Rojas, S.Reeve, C.Ruiz Direct measurement of the 16O(α, γ)20Ne reaction at Ec.m.=2.43 MeV and 1.69 MeV NUCLEAR REACTIONS 16O(α, γ)20Ne, E(cm)=1.69, 2.43 MeV; measured 20Ne spectra, Eγ, Iγ, (20Ne)γ-coin, time of flight using DRAGON recoil separator at TRIUMF facility. 20Ne; deduced levels J, π, S factor, branching ratios, resonance strengths, radiative widths, B(E1), B(M1), B(E2), B(E3). R-matrix analysis. Comparison with previous studies. Relevance to helium burning sequence.
doi: 10.1103/PhysRevC.86.055802
2012HU03 Nucl.Instrum.Methods Phys.Res. A689, 70 (2012) D.A.Hutcheon, C.Ruiz, J.Fallis, J.M.D'Auria, B.Davids, U.Hager, L.Martin, D.F.Ottewell, S.Reeve, A.Rojas Measurement of radiative capture resonance energies with an extended gas target NUCLEAR REACTIONS 1H(24Mg, γ), E=224, 227 keV/nucleon; measured reaction products, Eγ, Iγ; deduced resonance energies and their uncertainties. Dragon facility.
doi: 10.1016/j.nima.2012.05.069
2012NA17 J.Phys.:Conf.Ser. 337, 012057 (2012) B.S.Nara Singh, S.K.L.Sjue, B.Davids, M.Hass, P.Adsley, L.Buchmann, M.Carmona-Gallardo, J.Fallis, S.P.Fox, B.Fulton, N.Galinski, U.Hager, D.A.Hutcheon, A.M.Laird, L.Martin, D.Ottewell, S.Reeve, C.Ruiz, G.Ruprecht, A.Shotter, O.Tengblad Cross section measurements of the 3He(α, γ)7Be reaction using DRAGON at TRIUMF NUCLEAR REACTIONS 3He(α, γ), E(cm)=2-3 MeV; measured reaction products using DRAGON separator at TRIUMF and DSSSD; deduced S-factor. Compared with other data and FMD (fermionic molecular dynamics) calculations of Neff (this conf., paper 012055).
doi: 10.1088/1742-6596/337/1/012057
2012SC09 Nucl.Instrum.Methods Phys.Res. A681, 94 (2012) N.D.Scielzo, G.Li, M.G.Sternberg, G.Savard, P.F.Bertone, F.Buchinger, S.Caldwell, J.A.Clark, J.Crawford, C.M.Deibel, J.Fallis, J.P.Greene, S.Gulick, A.A.Hecht, D.Lascar, J.K.P.Lee, A.F.Levand, M.Pedretti, R.E.Segel, H.Sharma, K.S.Sharma, I.Tanihata, J.Van Schelt, R.M.Yee, B.J.Zabransky The β-decay Paul trap: A radiofrequency-quadrupole ion trap for precision β-decay studies RADIOACTIVITY 8Li(β-), (α); measured decay products, Eβ, Iβ, Eα, Iα, nuclear recoils; deduced technique for the β-ν angular correlations.
doi: 10.1016/j.nima.2012.04.035
2012VA02 Phys.Rev. C 85, 045805 (2012) J.Van Schelt, D.Lascar, G.Savard, J.A.Clark, S.Caldwell, A.Chaudhuri, J.Fallis, J.P.Greene, A.F.Levand, G.Li, K.S.Sharma, M.G.Sternberg, T.Sun, B.J.Zabransky Mass measurements near the r-process path using the Canadian Penning Trap mass spectrometer ATOMIC MASSES 133,134Sb, 134,135,136,137Te, 135,136,137,138,139I, 137,138,139,140,141Xe, 141,142Cs, 153,155Pr, 153,155,157Nd, 153,155,156,157,158,159Pm, 155,157,158,159,160,161Sm, 158,159,160,161Eu, 163Gd; measured cyclotron frequency ratios; deduced mass excess, atomic masses. Canadian Penning Trap mass spectrometer at ANL. Comparison with AME-2003 evaluation and theoretical mass models. Systematics of S(2n) values.
doi: 10.1103/PhysRevC.85.045805
2011FA10 Phys.Rev. C 84, 045807 (2011) J.Fallis, J.A.Clark, K.S.Sharma, G.Savard, F.Buchinger, S.Caldwell, A.Chaudhuri, J.E.Crawford, C.M.Deibel, S.Gulick, A.A.Hecht, D.Lascar, J.K.P.Lee, A.F.Levand, G.Li, B.F.Lundgren, A.Parikh, S.Russell, M.Scholte-van de Vorst, N.D.Scielzo, R.E.Segel, H.Sharma, S.Sinha, M.G.Sternberg, T.Sun, I.Tanihata, J.Van Schelt, J.C.Wang, Y.Wang, C.Wrede, Z.Zhou Mass measurements of isotopes of Nb, Mo, Tc, Ru, and Rh along the Νp- and rp-process paths using the Canadian Penning trap mass spectrometer ATOMIC MASSES 87Nb, 87,90,91,92Mo, 90,91,92,93Tc, 90,91,92,93,94Ru, 92,93,94,95Rh; measured cyclotron frequency ratios using Canadian Penning trap mass spectrometer; deduced mass excesses. 88Tc; deduced S(p). Comparison with previous measurements and AME-2003. Z=42-47, A=87-96; analyzed systematics of S(2p) values. Z=42-45, N=45-52; analyzed systematics of S(2n) values. Z=42-45, A=87-95; analyzed systematics of S(p) values. 94mAg; discussed 2p decay mode of 21+ isomer. NUCLEAR REACTIONS 58Ni(40Ca, X)87Nb/87Mo/90Mo/92Mo/90Tc/90Tc/92Tc/93Tc/90Ru/91Ru/92Ru/93Ru/92Rh/93Rh/94Rh, E=185, 190, 200 MeV; 58Ni(36Ar, X)91Tc/91Ru, E=125 MeV; Ni(36Ar, X)90Mo/91Mo/90Tc/91Tc/92Tc/91Ru/92Ru, E=130, 150 MeV; Ni(40Ca, X)93Tc/93Ru/94Ru/94Rh/95Rh, E=170 MeV; measured yields at ATLAS facility.
doi: 10.1103/PhysRevC.84.045807
2011HA37 Phys.Rev. C 84, 022801 (2011) U.Hager, J.R.Brown, L.Buchmann, M.Carmona-Gallardo, L.Erikson, J.Fallis, U.Greife, D.Hutcheon, D.Ottewell, C.Ruiz, S.Sjue, C.Vockenhuber Direct total cross section measurement of the 16O(α, γ)20Ne reaction at Ec.m. = 2.26 MeV NUCLEAR REACTIONS 4He(16O, γ), E(cm)=2.26 MeV; measured Eγ, Iγ, recoils, (recoil)γ-coin; deduced cross section, astrophysical S factor and its contribution to direct capture transitions. DRAGON recoil separator at TRIUMF, BGO array. Comparison with previous experiments.
doi: 10.1103/PhysRevC.84.022801
2011MA82 J.Phys.:Conf.Ser. 312, 042014 (2011) L.Martin, L.Buchmann, J.F.Carpino, A.Chen, A.Couture, B.Davids, J.Fallis, S.P.Fox, U.Hager, A.Hussein, A.M.Laird, K.Olchanski, D.Ottewell, C.Ruiz, G.Ruprecht, G.Sheffer, S.Sjue, O.Tengblad, F.Tovesson NEURAL - a tracking detector for neutron-induced reactions of astrophysical importance
doi: 10.1088/1742-6596/312/4/042014
2009SC19 Phys.Rev. C 80, 025501 (2009) N.D.Scielzo, S.Caldwell, G.Savard, J.A.Clark, C.M.Deibel, J.Fallis, S.Gulick, D.Lascar, A.F.Levand, G.Li, J.Mintz, E.B.Norman, K.S.Sharma, M.Sternberg, T.Sun, J.Van Schelt Double-β-decay Q values of 130Te, 128Te, and 120Te ATOMIC MASSES 128,129,130,131,132Xe, 120,128,130Te, 120Sn; measured mass differences of 120Te-120Sn, 128Te-128Xe, 130Te-130Xe and 132Xe-129Xe pairs using Penning Trap mass spectrometer. RADIOACTIVITY 120Te(2β+); 128,130Te(2β-); measured parent-daughter mass differences by Penning-trap spectrometer; deduced Q values.
doi: 10.1103/PhysRevC.80.025501
2008FA11 Phys.Rev. C 78, 022801 (2008) J.Fallis, J.A.Clark, K.S.Sharma, G.Savard, F.Buchinger, S.Caldwell, J.E.Crawford, C.M.Deibel, J.L.Fisker, S.Gulick, A.A.Hecht, D.Lascar, J.K.P.Lee, A.F.Levand, G.Li, B.F.Lundgren, A.Parikh, S.Russell, M.Scholte-van de Vorst, N.D.Scielzo, R.E.Segel, H.Sharma, S.Sinha, M.Sternberg, T.Sun, I.Tanihata, J.Van Schelt, J.C.Wang, Y.Wang, C.Wrede, Z.Zhou Determination of the proton separation energy of 93Rh from mass measurements ATOMIC MASSES 92Ru, 93Rh; measured masses; deduced mass excesses, proton separation energies. Penning trap method.
doi: 10.1103/PhysRevC.78.022801
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