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NSR database version of May 24, 2024.

Search: Author = C.D.Unsworth

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2023SI08      Phys.Rev. C 107, 054305 (2023)

J.Simpson, M.A.Riley, A.Pipidis, E.S.Paul, X.Wang, P.J.Nolan, J.F.Sharpey-Schafer, A.Aguilar, D.E.Appelbe, A.D.Ayangeakaa, A.J.Boston, H.C.Boston, D.B.Campbell, M.P.Carpenter, C.J.Chiara, P.T.W.Choy, R.M.Clark, M.Cromaz, A.O.Evans, P.Fallon, U.Garg, A.Gorgen, D.J.Hartley, R.V.F.Janssens, D.T.Joss, D.S.Judson, F.G.Kondev, T.Lauritsen, I.Y.Lee, A.O.Macchiavelli, J.T.Matta, J.Ollier, M.Petri, J.P.Revill, L.L.Riedinger, S.V.Rigby, C.Teal, P.J.Twin, C.Unsworth, D.Ward, S.Zhu, I.Ragnarsson

Evolution of structure and shapes in 158Er to ultrahigh spin

NUCLEAR REACTIONS 114Cd(48Ca, 4n)158Er, E=215 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ). 158Er; deduced levels, J, π, high-spin states, angular intensity ratios, δ, B(M1/E2) ratios, nuclear shapes, alignments, rotational bands, configurations, band terminating states and feeding, transition quadrupole moments for triaxial strongly deformed bands, moment of inertia. Comparison with cranked Nilsson-Strutinski calculations. Systematics of triaxial strongly deformed bands in 158Er, 160Er, 152Dy, 163Lu. Gammasphere array of escape-suppressed HPGe detectors at 88-inch cyclotron-LBNL and ATLAS-ANL facilities.

doi: 10.1103/PhysRevC.107.054305
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Data from this article have been entered in the XUNDL database. For more information, click here.


2021KU26      Phys.Rev. C 104, 044601 (2021)

K.Kuhn, F.Sarazin, F.M.Nunes, M.A.G.Alvarez, C.Andreoiu, D.W.Bardayan, P.C.Bender, J.C.Blackmon, M.J.G.Borge, R.Braid, B.A.Brown, W.N.Catford, C.Aa.Diget, A.DiPietro, T.E.Drake, P.Figuera, A.B.Garnsworthy, J.Gomez-Camacho, G.Hackman, U.Hager, S.V.Ilyushkin, E.Nacher, P.D.O'Malley, A.Perea, V.Pesudo, S.T.Pittman, D.Smalley, C.E.Svensson, O.Tengblad, P.Thompson, C.Unsworth, Z.M.Wang

Experimental study of the nature of the 1- and 2- excited states in 10Be using the 11Be(p, d) reaction in inverse kinematics

NUCLEAR REACTIONS 1H(11Be, d)10Be, (11Be, p), (11Be, p'), E=9.93 MeV/nucleon, [secondary 11Be beam from Ta(p, X), E=479 MeV primary reaction at TRIUMF cyclotron, followed by extraction of 11Be using Resonant Ionization Laser Ion Source (TRILIS) and accelerated through the ISAC-I and ISAC-II accelerators]; measured E(d), I(d), E(p), I(p), elastic and inelastic σ(θ) of outgoing protons, σ(θ) for deuterons using silicon telescopes, Eγ, Iγ, dγ-coin using TIGRESS array of 12 HPGe detectors for γ detection. 10Be; deduced levels, spectroscopic factors for 5960, 1- and 6263, 2- levels, mixed configurations with halo and cluster structures. Comparison of spectroscopic factors with predictions of shell model. Reaction kinematics and angular distributions analyzed using two versions of transfer reaction model considering one-step and two-step processes. Comparison with previous experimental results from RCNP and ISOLDE-CERN.

doi: 10.1103/PhysRevC.104.044601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2682.


2020CR04      Phys.Rev. C 102, 024335 (2020)

S.Cruz, K.Wimmer, S.S.Bhattacharjee, P.C.Bender, G.Hackman, R.Krucken, F.Ames, C.Andreoiu, R.A.E.Austin, C.S.Bancroft, R.Braid, T.Bruhn, W.N.Catford, A.Cheeseman, A.Chester, D.S.Cross, C.Aa.Diget, T.Drake, A.B.Garnsworthy, R.Kanungo, A.Knapton, W.Korten, K.Kuhn, J.Lassen, R.Laxdal, M.Marchetto, A.Matta, D.Miller, M.Moukaddam, N.A.Orr, N.Sachmpazidi, A.Sanetullaev, C.E.Svensson, N.Terpstra, C.Unsworth, P.J.Voss

Single-particle structure in neutron-rich Sr isotopes approaching the N=60 shape transition

NUCLEAR REACTIONS 2H(94Sr, t), (95Sr, t), (96Sr, t), E=5.5 MeV/nucleon, [secondary beams of Sr isotopes produced in U(p, X), E=480 MeV primary reaction, followed by separation of Sr fragments using a laser ion source at TRIUMF-ISACII facility]; measured light charged particles using the highly segmented silicon detector array (SHARC), E(t), σ(θ), Eγ, Iγ, (triton)γ- and (triton)γγ-coin using TIGRESS array of eight clover detectors. 93,94,95Sr; deduced levels, J, π, L-transfers by DWBA analysis, spectroscopic factors, configurations. Comparison with shell-model calculations. Systematics of the excited 0+ states in 88,90,92,94,96,98,100Sr.

doi: 10.1103/PhysRevC.102.024335
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Data from this article have been entered in the XUNDL database. For more information, click here.


2019CR06      Phys.Rev. C 100, 054321 (2019)

S.Cruz, K.Wimmer, P.C.Bender, R.Krucken, G.Hackman, F.Ames, C.Andreoiu, R.A.E.Austin, C.S.Bancroft, R.Braid, T.Bruhn, W.N.Catford, A.Cheeseman, A.Chester, D.S.Cross, C.Aa.Diget, T.Drake, A.B.Garnsworthy, R.Kanungo, A.Knapton, W.Korten, K.Kuhn, J.Lassen, R.Laxdal, M.Marchetto, A.Matta, D.Miller, M.Moukaddam, N.A.Orr, N.Sachmpazidi, A.Sanetullaev, C.E.Svensson, N.Terpstra, C.Unsworth, P.J.Voss

Single-particle structure of neutron-rich Sr isotopes via 2H(94, 95, 96Sr, p) reactions

NUCLEAR REACTIONS 2H(94Sr, p), (95Sr, p), (96Sr, p), E=5.5 MeV/nucleon, [secondary 94,95,96Sr beams from U(p, F), E=480 MeV primary reaction and using TRIUMF RILIS for extraction of fragments]; measured recoiling light charged particles, Eγ, Iγ, angular distribution of charged particles using SHARC array of quasi-4π silicon strip detectors for particles and TIGRESS array for γ rays at TRIUMF-ISACII facility. 95,96,97Sr; deduced levels, J, L-transfers and spectroscopic factors using distorted wave Born approximation (DWBA) and adiabatic distorted wave approximation (ADWA) analyses. Comparison with shell-model calculations using realistic effective interactions.

doi: 10.1103/PhysRevC.100.054321
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2422. Data from this article have been entered in the XUNDL database. For more information, click here.


2018CR06      Phys.Lett. B 786, 94 (2018)

S.Cruz, P.C.Bender, R.Krucken, K.Wimmer, F.Ames, C.Andreoiu, R.A.E.Austin, C.S.Bancroft, R.Braid, T.Bruhn, W.N.Catford, A.Cheeseman, A.Chester, D.S.Cross, C.Aa.Diget, T.Drake, A.B.Garnsworthy, G.Hackman, R.Kanungo, A.Knapton, W.Korten, K.Kuhn, J.Lassen, R.Laxdal, M.Marchetto, A.Matta, D.Miller, M.Moukaddam, N.A.Orr, N.Sachmpazidi, A.Sanetullaev, C.E.Svensson, N.Terpstra, C.Unsworth, P.J.Voss

Shape coexistence and mixing of low-lying 0+ states in 96Sr

NUCLEAR REACTIONS 2H(95Sr, p), E=5.5 MeV/nucleon; measured reaction products, Eγ, Iγ. 96Sr; deduced γ-ray energies, σ(θ), spectroscopic factors.

doi: 10.1016/j.physletb.2018.09.031
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2382. Data from this article have been entered in the XUNDL database. For more information, click here.


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
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2017PE06      Phys.Rev.Lett. 118, 152502 (2017)

V.Pesudo, M.J.G.Borge, A.M.Moro, J.A.Lay, E.Nacher, J.Gomez-Camacho, O.Tengblad, L.Acosta, M.Alcorta, M.A.G.Alvarez, C.Andreoiu, P.C.Bender, R.Braid, M.Cubero, A.Di Pietro, J.P.Fernandez-Garcia, P.Figuera, M.Fisichella, B.R.Fulton, A.B.Garnsworthy, G.Hackman, U.Hager, O.S.Kirsebom, K.Kuhn, M.Lattuada, G.Marquinez-Duran, I.Martel, D.Miller, M.Moukaddam, P.D.O'Malley, A.Perea, M.M.Rajabali, A.M.Sanchez-Benitez, F.Sarazin, V.Scuderi, C.E.Svensson, C.Unsworth, Z.M.Wang

Scattering of the Halo Nucleus 11Be on 197Au at Energies around the Coulomb Barrier

NUCLEAR REACTIONS 197Au(11Be, X), E=31.9 MeV; measured reaction products; deduced σ, σ(θ), B(E1). Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.118.152502
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2259.


2017VE02      J.Phys.(London) G44, 074003 (2017)

M.Venhart, J.L.Wood, M.Sedlak, M.Balogh, M.Birova, A.J.Boston, T.E.Cocolios, L.J.Harkness-Brennan, R.-D.Herzberg, L.Holub, D.T.Joss, D.S.Judson, J.Kliman, J.Klimo, L.Krupa, J.Lusnak, L.Makhathini, V.Matousek, S.Motycak, R.D.Page, A.Patel, K.Petrik, A.V.Podshibyakin, P.M.Prajapati, A.M.Rodin, A.Spacek, R.Urban, C.Unsworth, M.Veselsky

New systematic features in the neutron-deficient Au isotopes

RADIOACTIVITY 183Hg(EC), (β+) [Pb(p, X), E=1.4 GeV]; measured decay products, Eγ, Iγ, γ-γ-coin; deduced γ-ray energies, J, π, conversion electrons, transition multipolarities. Comparison with available data.

doi: 10.1088/1361-6471/aa7297
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Data from this article have been entered in the XUNDL database. For more information, click here.


2017VO05      Phys.Rev. C 96, 024305 (2017)

P.Voss, T.E.Drake, K.Starosta, C.Andreoiu, R.Ashley, G.C.Ball, P.C.Bender, A.Chester, R.Churchman, D.S.Cross, A.B.Garnsworthy, G.Hackman, B.Hadinia, R.Henderson, B.Jigmeddorj, S.Ketelhut, R.Krucken, A.T.Laffoley, K.G.Leach, D.Miller, R.Orlandi, C.J.Pearson, J.Pore, M.M.Rajabali, E.T.Rand, C.E.Svensson, E.Tardiff, C.Unsworth, Z.-M.Wang, A.Signoracci

Doppler-shift attenuation lifetime measurement of the 36Ar 2+1 level

NUCLEAR REACTIONS 12C(36Ar, 36Ar'), E=63 MeV; measured Eγ, (12C)γ-coin, half-life of the first 2+ state by Doppler-shift attenuation method (DSAM) following low-energy Coulomb excitation using TIGRESS spectrometer and PIN diode detectors at TRIUMF-ISAC facility. Carbon target backed with 197Au. 36Ar; deduced level, B(E2) for the first 2+ state, and compared with previous experimental data, and with shell-model calculations using USDB interaction.

doi: 10.1103/PhysRevC.96.024305
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Data from this article have been entered in the XUNDL database. For more information, click here.


2017WI07      Nucl.Instrum.Methods Phys.Res. A859, 8 (2017)

J.Williams, C.Andreoiu, R.Ashley, G.C.Ball, T.Ballast, P.C.Bender, C.Bolton, V.Bildstein, A.Chester, D.S.Cross, T.Domingo, T.Drake, A.Garnsworthy, P.Garrett, B.Hadinia, G.Hackman, R.Henderson, D.Jamieson, B.Jigmeddorj, A.Knapton, R.Kruecken, D.Miller, W.J.Mills, M.Moukaddam, M.Rajabali, U.Rizwan, K.Starosta, C.E.Svensson, C.Unsworth, A.D.Varela, P.Voss, Z.M.Wang, J.Wong

Implementation of the Doppler shift attenuation method using TIP/TIGRESS at TRIUMF: Fusion-evaporation lifetime measurements in 22Ne

NUCLEAR REACTIONS 12C(18O, 2α)22Ne, E=48 MeV; measured reaction products, Eα, Iα, Eγ, Iγ; deduced level energies, J, π, T1/2. DSAM, comparison with available data.

doi: 10.1016/j.nima.2017.03.059
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2016DU10      Phys.Rev.Lett. 116, 172501 (2016)

M.R.Dunlop, C.E.Svensson, G.C.Ball, G.F.Grinyer, J.R.Leslie, C.Andreoiu, R.A.E.Austin, T.Ballast, P.C.Bender, V.Bildstein, A.Diaz Varela, R.Dunlop, A.B.Garnsworthy, P.E.Garrett, G.Hackman, B.Hadinia, D.S.Jamieson, A.T.Laffoley, A.D.MacLean, D.M.Miller, W.J.Mills, J.Park, A.J.Radich, M.M.Rajabali, E.T.Rand, C.Unsworth, A.Valencik, Z.M.Wang, E.F.Zganjar

High-Precision Half-Life Measurements for the Superallowed β+ Emitter 10C: Implications for Weak Scalar Currents

RADIOACTIVITY 10C(EC) [from Ni, O(p, X)10C, E=480 MeV]; measured decay products, Eγ, Iγ; deduced T1/2 and its uncertainties. Comparison with available data.

doi: 10.1103/PhysRevLett.116.172501
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Data from this article have been entered in the XUNDL database. For more information, click here.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2219. Data from this article have been entered in the XUNDL database. For more information, click here.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2217. Data from this article have been entered in the XUNDL database. For more information, click here.


2016WA16      Phys.Rev. C 93, 054301 (2016)

Z.M.Wang, A.B.Garnsworthy, C.Andreoiu, G.C.Ball, P.C.Bender, V.Bildstein, D.S.Cross, G.Demand, R.Dunlop, L.J.Evitts, P.E.Garrett, G.Hackman, B.Hadinia, S.Ketelhut, R.Krucken, K.G.Leach, A.T.Laffoley, D.Miller, M.Moukaddam, J.Pore, A.J.Radich, M.M.Rajabali, C.E.Svensson, A.Tan, E.Tardiff, C.Unsworth, A.Voss, P.Voss

Observation of a large β-delayed neutron emission component in 102Rb decay and identification of excited states in 102Sr

RADIOACTIVITY 102Rb(β-), (β-n)[from U(p, F), E=500 MeV at TRIUMF-ISAC facility]; measured Eβ, Eγ, Iγ, βγ-, γγ-coin using 8π array for γ detection and SCEPTAR plastic scintillator for β detection. 102,102Sr; deduced levels, J, π, delayed neutron-emission probability Pn. Systematics of absolute intensity of the first 2+ to 0+ transition, and direct ground-state feeding in β-delayed neutron emission in the β decays of 94,96,98,100,102Rb. Plots of Pn/T1/2 versus Qβn for decays of 94,96,98,100,102Rb, and comparison with theoretical and phenomenological descriptions. 102Zr, 102Sr, 101Zr(β-); observed γ rays.

doi: 10.1103/PhysRevC.93.054301
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14436. Data from this article have been entered in the XUNDL database. For more information, click here.


2016WI03      Phys.Lett. B 759, 417 (2016)

G.L.Wilson, W.N.Catford, N.A.Orr, C.Aa.Diget, A.Matta, G.Hackman, S.J.Williams, I.C.Celik, N.L.Achouri, H.Al Falou, R.Ashley, R.A.E.Austin, G.C.Ball, J.C.Blackmon, A.J.Boston, H.C.Boston, S.M.Brown, D.S.Cross, M.Djongolov, T.E.Drake, U.Hager, S.P.Fox, B.R.Fulton, N.Galinski, A.B.Garnsworthy, D.Jamieson, R.Kanungo, K.G.Leach, J.N.Orce, C.J.Pearson, M.Porter-Peden, F.Sarazin, E.C.Simpson, S.Sjue, D.Smalley, C.Sumithrarachchi, S.Triambak, C.Unsworth, R.Wadsworth

Shell evolution approaching the N = 20 island of inversion: Structure of 26Na

NUCLEAR REACTIONS 2H(25Na, pγ)26Na, E=5 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ(θ), energy levels, J, π, level scheme. Comparison with available data.

doi: 10.1016/j.physletb.2016.05.093
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Data from this article have been entered in the XUNDL database. For more information, click here.


2015CA03      Acta Phys.Pol. B46, 527 (2015)

W.N.Catford, I.C.Celik, G.L.Wilson, A.Matta, N.A.Orr, C.Aa.Diget, P.Adsley, H.Al Falou, R.Ashley, R.A.E.Austin, G.C.Ball, J.C.Blackmon, A.J.Boston, H.C.Boston, S.M.Brown, D.S.Cross, M.Djongolov, T.E.Drake, U.Hager, S.P.Fox, B.R.Fulton, N.Galinski, A.B.Garnsworthy, G.Hackman, D.Jamieson, R.Kanungo, K.Leach, J-P.Martin, J.N.Orce, C.J.Pearson, M.Porter-Peden, F.Sarazin, S.Sjue, C.Sumithrarachchi, C.E.Svensson, S.Triambak, C.Unsworth, R.Wadsworth, S.J.Williams

Structure of 26Na via a Novel Technique Using (d, pγ) with a Radioactive 25Na Beam

NUCLEAR REACTIONS 2H(25Na, X)26Na, E not given; measured reaction products, Eγ, Iγ; deduced excited states, J, π.

doi: 10.5506/APhysPolB.46.527
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2166. Data from this article have been entered in the XUNDL database. For more information, click here.


2015LA19      Phys.Rev. C 92, 025502 (2015)

A.T.Laffoley, C.E.Svensson, C.Andreoiu, G.C.Ball, P.C.Bender, H.Bidaman, V.Bildstein, B.Blank, D.S.Cross, G.Deng, A.Diaz Varela, M.R.Dunlop, R.Dunlop, A.B.Garnsworthy, P.E.Garrett, J.Giovinazzo, G.F.Grinyer, J.Grinyer, G.Hackman, B.Hadinia, D.S.Jamieson, B.Jigmeddorj, D.Kisliuk, K.G.Leach, J.R.Leslie, A.D.MacLean, D.Miller, B.Mills, M.Moukaddam, A.J.Radich, M.M.Rajabali, E.T.Rand, J.C.Thomas, J.Turko, C.Unsworth, P.Voss

High-precision half-life measurements for the superallowed Fermi β+ emitter 18Ne

RADIOACTIVITY 18Ne(β+), (EC), 23Ne(β-)[from Si(p, X), E=480 MeV, mass-separated 18,23Ne beams]; measured β using 4π continuous-flow gas proportional counter, Eγ, Iγ, βγ-coin, half-lives of 18Ne and 23Ne isotopes at TRIUMF-ISAC facility. Discussed rate-dependent and diffusion effects, and uncertainty analysis. Comparison with previous measurements. Relevance to superallowed Fermi decay.

doi: 10.1103/PhysRevC.92.025502
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Data from this article have been entered in the XUNDL database. For more information, click here.


2014GA24      Phys.Rev. C 90, 035803 (2014)

N.Galinski, S.K.L.Sjue, G.C.Ball, D.S.Cross, B.Davids, H.Al Falou, A.B.Garnsworthy, G.Hackman, U.Hager, D.A.Howell, M.Jones, R.Kanungo, R.Kshetri, K.G.Leach, J.R.Leslie, M.Moukaddam, J.N.Orce, E.T.Rand, C.Ruiz, G.Ruprecht, M.A.Schumaker, C.E.Svensson, S.Triambak, C.D.Unsworth

Lifetime measurements of states in 15O

NUCLEAR REACTIONS 3He(16O, α), E=50 MeV; measured Eγ, Iγ, Eα, Iα, αγ-coin, level half-lives by DSAM using TIGRESS array for γ detection and Si detector telescopes for α particles at TRIUMF-ISAC-II facility. 15O; deduced three levels and associated half-lives. Monte-Carlo simulations. Relevance to astrophysical reaction rates for 14N(p, γ)15O reaction.

doi: 10.1103/PhysRevC.90.035803
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2014PE05      Acta Phys.Pol. B45, 375 (2014)

V.Pesudo, M.J.G.Borge, A.M.Moro, E.Nacher, L.Acosta, M.Alcorta, M.A.G.Alvarez, G.C.Ball, P.C.Bender, R.Braid, M.Cubero, A.di Pietro, J.P.Fernandez-Garcia, P.Figuera, M.Fisichella, B.R.Fulton, A.B.Garnsworthy, J.Gomez-Camacho, G.Hackman, O.S.Kirsebom, K.Kuhn, R.Kruecken, M.Lattuada, J.A.Lay, G.Marquinez-Duran, I.Martel, D.Miller, M.Moukaddam, P.D.O'Malley, A.Perea, M.M.Rajabali, A.M.Sanchez-Benitez, F.Sarazin, V.Scuderi, C.E.Svensson, O.Tengblad, C.Unsworth, Z.M.Wang

Reaction of the Halo Nucleus 11Be on Heavy Targets at Energies Around the Coulomb Barrier

NUCLEAR REACTIONS 197Au(11Be, X), E=31.9 MeV; measured reaction products; deduced σ. Comparison with CDCC calculations.

doi: 10.5506/APhysPolB.45.375
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2013LA23      Phys.Rev. C 88, 015501 (2013)

A.T.Laffoley, C.E.Svensson, C.Andreoiu, R.A.E.Austin, G.C.Ball, B.Blank, H.Bouzomita, D.S.Cross, A.Diaz Varela, R.Dunlop, P.Finlay, A.B.Garnsworthy, P.E.Garrett, J.Giovinazzo, G.F.Grinyer, G.Hackman, B.Hadinia, D.S.Jamieson, S.Ketelhut, K.G.Leach, J.R.Leslie, E.Tardiff, J.C.Thomas, C.Unsworth

High-precision half-life measurements for the superallowed Fermi β+ emitter 14O

RADIOACTIVITY 14O(β+)[from 12C14O molecules in A=26 products produced in bombardment of SiC target by 500 MeV protons]; measured Eγ, Iγ, Eβ, Iβ, half-life of 14O superallowed β+ emitter using 8π detector array for γ rays and plastic scintillators for β radiation at TRIUMF-ISAC facility. Detailed analysis of statistical and systematic uncertainties. Comparison with previous experimental half-life values.

doi: 10.1103/PhysRevC.88.015501
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2013RE11      Phys.Rev. C 88, 031304 (2013)

J.P.Revill, E.S.Paul, X.Wang, M.A.Riley, J.Simpson, R.V.F.Janssens, J.Ollier, A.J.Boston, M.P.Carpenter, C.J.Chiara, C.R.Hoffman, F.G.Kondev, T.Lauritsen, P.J.Nolan, J.M.Rees, S.V.Rigby, C.Unsworth, S.Zhu, I.Ragnarsson

Quadrupole moments of coexisting collective shapes at high spin in 154Er

NUCLEAR REACTIONS 110Pd(48Ti, 4n), E=215 MeV; measured Eγ, Iγ, γγ-coin, fractional Doppler-shift values F(τ) vs Eγ. 154Er; deduced high-spin levels, triaxial strongly deformed (TSD), and superdeformed (SD) bands, transition quadrupole moments, configurations. Configuration-dependent cranked Nilsson-Strutinsky (CNS) calculations. Total energy surface calculations. Systematics of dynamic moment of inertia plots for bands in N=86 isotones 152Dy, 153Ho and 154Er.

doi: 10.1103/PhysRevC.88.031304
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2012RE23      J.Phys.:Conf.Ser. 381, 012066 (2012)

J.P.Revill, E.S.Paul, X.Wang, M.A.Riley, J.Simpson, J.Ollier, A.J.Boston, M.P.Carpenter, C.J.Chiara, C.Hoffman, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, P.J.Nolan, J.M.Rees, S.V.Rigby, C.Unsworth, S.Zhu, I.Ragnarsson

Relative quadrupole moments of exotic shapes at ultrahigh spin in 154Er: calibrating the TSD/SD puzzle

NUCLEAR REACTIONS 110Pd(48Ti, X), E=215 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere, Doppler shift. 154Er deduced high spin (ultrahigh) transition quadrupole moment using DSAAM (Doppler shift attenuation method), axial superdeformed shape, triaxial strongly deformed shape, rotational bands, inertia moments.Inertia moments compared with those obtained in 152Dy and 153Ho.

doi: 10.1088/1742-6596/381/1/012066
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2012WA39      J.Phys.:Conf.Ser. 381, 012065 (2012)

X.Wang, M.A.Riley, J.Simpson, E.S.Paul, R.V.F.Janssens, A.D.Ayangeakaa, H.C.Boston, M.P.Carpenter, C.J.Chiara, U.Garg, P.Hampson, D.J.Hartley, C.R.Hoffman, D.S.Judson, F.G.Kondev, T.Lauritsen, N.M.Lumley, J.Matta, S.Miller, P.J.Nolan, J.Oilier, M.Petri, D.C.Radford, J.M.Rees, J.P.Revill, L.L.Riedinger, S.V.Rigby, C.Unsworth, S.Zhu, I.Ragnarsson

Collective structures up to spin ∼ 65h-(bar) in the N = 90 isotones 158Er and 157Ho

NUCLEAR REACTIONS 114Cd(48Ca, X)158Er, E=215 MeV;124Sn(37Cl, X)157Ho, E=177 MeV; measured Eγ, Iγ, γγ-coin using Compton-suppressed HPGe detectors of Gammasphere; analyzed Doppler shifts. 158Er, 157Ho deduced high-spin (ultrahigh-spin) rotational bands, transition quadrupole moments, Doppler shift vs Eγ.

doi: 10.1088/1742-6596/381/1/012065
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2011MU19      Phys.Rev. C 84, 054320 (2011)

M.Mustafa, J.Ollier, J.Simpson, M.A.Riley, E.S.Paul, X.Wang, A.Aguilar, M.P.Carpenter, I.G.Darby, D.J.Hartley, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, P.J.Nolan, M.Petri, J.M.Rees, J.P.Revill, S.V.Rigby, C.Teal, J.Thomson, C.Unsworth, S.Zhu, B.G.Carlsson, H.L.Ma, T.Mufti, I.Ragnarsson

Diverse collective excitations in 159Er up to high spin

NUCLEAR REACTIONS 116Cd(48Ca, 5n), E=215 MeV; measured Eγ, Iγ, γγ-coin, γ(θ) using Gammasphere array. 159Er; deduced levels, J, π, multipolarities, bands, triaxial SD band, configurations, alignment plots, band termination, oblate structures, unpaired band crossings; calculated potential energy surfaces. Comparison with cranked Nilsson-Strutinsky (CNS) calculations. systematics of γ-vibrational states in N=88-94 Er nuclei.

doi: 10.1103/PhysRevC.84.054320
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2011OL02      Phys.Rev. C 83, 044309 (2011)

J.Ollier, J.Simpson, M.A.Riley, E.S.Paul, X.Wang, A.Aguilar, M.P.Carpenter, I.G.Darby, D.J.Hartley, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, P.J.Nolan, M.Petri, J.M.Rees, S.V.Rigby, C.Teal, J.Thomson, C.Unsworth, S.Zhu, A.Kardan, I.Ragnarsson

Structure changes in 160Er from low to ultrahigh spin

NUCLEAR REACTIONS 116Cd(48Ca, 4n), E=215 MeV; measured Eγ, Iγ, γγ-coin, angular distributions using Gammasphere Spectrometer. 160Er; deduced levels, J, π, rotational bands, triaxial strongly-deformed (TSD) bands, multipolarity, configurations, angular momentum alignments, B(M1)/B(E2) ratios, potential energy surfaces, dynamic moment of inertia plots, ultra-high spin regime. Comparison with cranked Nilsson-Strutinsky (CNS) calculations.

doi: 10.1103/PhysRevC.83.044309
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2011OL03      Phys.Rev. C 84, 027302 (2011)

J.Ollier, J.Simpson, M.A.Riley, E.S.Paul, X.Wang, A.Aguilar, M.P.Carpenter, I.G.Darby, D.J.Hartley, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, P.J.Nolan, M.Petri, S.V.Rigby, C.Teal, J.Thomson, C.Unsworth, S.Zhu

High-spin yrast structure of 159Ho

NUCLEAR REACTIONS 116Cd(48Ca, 4np), E=215 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array and ATLAS facility at ANL. 159Ho; deduced levels, J, π, rotational bands, configurations, alignments, signature splitting. Comparison with systematics of signature splittings in N=92 isotones 155Eu, 157Tb, 159Ho, 161Tm, 163Lu, 165Ta; and alignments in 160Er, 155,157,159,161,163,165Ho.

doi: 10.1103/PhysRevC.84.027302
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2011RE06      Phys.Rev. C 83, 044314 (2011)

J.M.Rees, E.S.Paul, M.A.Riley, J.Simpson, A.D.Ayangeakaa, H.C.Boston, M.P.Carpenter, C.J.Chiara, U.Garg, D.J.Hartley, R.V.F.Janssens, D.S.Judson, F.G.Kondev, T.Lauritsen, N.M.Lumley, J.Matta, P.J.Nolan, J.Ollier, M.Petri, J.P.Revill, L.L.Riedinger, S.V.Rigby, C.Unsworth, X.Wang, S.Zhu

Non-yrast positive-parity structures in the γ -soft nucleus 156Er

NUCLEAR REACTIONS 114Cd(48Ca, 6n), E=215 MeV; measured Eγ, Iγ, γγ-coin, angular distributions using Gammasphere spectrometer. 156Er; deduced levels, J, π, rotational bands, multipolarity, alignments, staggering parameter, configurations. Comparison with predictions of γ-rigid and γ-soft rotor model. Systematics of γ-vibrational bands for Z=68 isotopes and N=88 isotones.

doi: 10.1103/PhysRevC.83.044314
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2011WA14      Phys.Lett. B 702, 127 (2011)

X.Wang, M.A.Riley, J.Simpson, E.S.Paul, J.Ollier, R.V.F.Janssens, A.D.Ayangeakaa, H.C.Boston, M.P.Carpenter, C.J.Chiara, U.Garg, D.J.Hartley, D.S.Judson, F.G.Kondev, T.Lauritsen, N.M.Lumley, J.Matta, P.J.Nolan, M.Petri, J.P.Revill, L.L.Riedinger, S.V.Rigby, C.Unsworth, S.Zhu, I.Ragnarsson

Quadrupole moments of collective structures up to spin ∼ 65h in 157Er and 158Er: A challenge for understanding triaxiality in nuclei

NUCLEAR REACTIONS 114Cd(48Ca, X)157Er/158Er, E=215 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced transition quadrupole moments for weakly populated collective bands, large deformations, stable triaxial shapes. Comparison with Nilsson-Strutinsky calculations.

doi: 10.1016/j.physletb.2011.07.007
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2010KA03      Phys.Lett. B 682, 391 (2010)

R.Kanungo, A.T.Gallant, M.Uchida, C.Andreoiu, R.A.E.Austin, D.Bandyopadhyay, G.C.Ball, J.A.Becker, A.J.Boston, H.C.Boston, B.A.Brown, L.Buchmann, S.J.Colosimo, R.M.Clark, D.Cline, D.S.Cross, H.Dare, B.Davids, T.E.Drake, M.Djongolov, P.Finlay, N.Galinski, P.E.Garrett, A.B.Garnsworthy, K.L.Green, S.Grist, G.Hackman, L.J.Harkness, A.B.Hayes, D.Howell, A.M.Hurst, H.B.Jeppesen, K.G.Leach, A.O.Macchiavelli, D.Oxley, C.J.Pearson, B.Pietras, A.A.Phillips, S.V.Rigby, C.Ruiz, G.Ruprecht, F.Sarazin, M.A.Schumaker, A.C.Shotter, C.S.Sumitharachchi, C.E.Svensson, I.Tanihata, S.Triambak, C.Unsworth, S.J.Williams, P.Walden, J.Wong, C.Y.Wu

Structure of states in 12Be via the 11Be(d, p) reaction

NUCLEAR REACTIONS 2H(11Be, p), E=5 MeV/nucleon; measured proton spectra, recoiling and product nucleus spectra, p(nucleus)-coin; deduced σ(θ), Q-value spectra, peak widths. 12Be; deduced energy levels, J, π, spectroscopic factors using DWBA analysis.

doi: 10.1016/j.physletb.2009.11.025
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2009OL09      Phys.Rev. C 80, 064322 (2009)

J.Ollier, J.Simpson, X.Wang, M.A.Riley, A.Aguilar, C.Teal, E.S.Paul, P.J.Nolan, M.Petri, S.V.Rigby, J.Thomson, C.Unsworth, M.P.Carpenter, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, S.Zhu, D.J.Hartley, I.G.Darby, I.Ragnarsson

Ultrahigh-spin spectroscopy of 159, 160Er: Observation of triaxial strongly deformed structures

NUCLEAR REACTIONS 116Cd(48Ca, X), E=215 MeV; measured Eγ, Iγ, γγ using Gammasphere array. 159,160Er; deduced levels, J, π, triaxial strongly deformed (TSD) bands, dynamical moment of inertia plots, and configurations. Calculated potential energy surfaces and single-particle proton and neutron energies (Routhians) with Cranked Nilsson-Strutinsky approach.

doi: 10.1103/PhysRevC.80.064322
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2009RI05      Acta Phys.Pol. B40, 513 (2009)

M.A.Riley, A.Aguilar, A.O.Evans, D.J.Hartley, K.Lagergren, J.Ollier, E.S.Paul, A.Pipidis, J.Simpson, C.Teal, P.J.Twin, X.Wang, D.E.Appelbe, D.B.Campbell, M.P.Carpenter, R.M.Clark, M.Cromaz, I.G.Darby, P.Fallon, U.Garg, R.V.F.Janssens, D.T.Joss, F.G.Kondev, T.Lauritsen, I.Y.Lee, C.J.Lister, A.O.Macchiavelli, P.J.Nolan, M.Petri, S.V.Rigby, J.Thompson, C.Unsworth, D.Ward, S.Zhu, I.Ragnarsson

Strongly Deformed Nuclear Shapes at Ultra-High Spin and Shape Coexistence in ∼ 90 Nuclei


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Note: The following list of authors and aliases matches the search parameter C.D.Unsworth: , C.D.UNSWORTH