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NSR database version of April 27, 2024.

Search: Author = P.Goddard

Found 15 matches.

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2016GO03      Phys.Rev. C 93, 014620 (2016)

P.Goddard, P.Stevenson, A.Rios

Fission dynamics within time-dependent Hartree-Fock. II. Boost-induced fission

NUCLEAR REACTIONS ²⁴⁰Pu(n, F); calculated particle densities, time evolution of β₂, β₃, β₄ deformation parameters, threshold energies, masses and fission products following instantaneous quadrupole excitations upon the isomeric state. Deformation- and boost-induced fission (DIF and BIF) processes. Quadrupole constrained time-dependent Hartree-Fock (TDHF) calculations with SkM* effective interaction using SKY3D code. Comparison with experimental values.

doi: 10.1103/PhysRevC.93.014620
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2015GO21      Phys.Rev. C 92, 054610 (2015), Erratum Phys.Rev. C 102, 069902 (2020)

P.Goddard, P.Stevenson, A.Rios

Fission dynamics within time-dependent Hartree-Fock: Deformation-induced fission

NUCLEAR STRUCTURE ²⁴⁰Pu; calculated binding energies, rms radii, β₂, β₃ and β₄ deformation parameters, potential energy surfaces (PES) for ground state and isomer using TDHF technique implemented in SKY3D with SkM* Skyrme effective interaction.

RADIOACTIVITY ²⁴⁰Pu(SF); calculated fission barriers, states between one-fragment and two-fragment fission pathways, evolution of deformations, total kinetic energies, mass fragment distributions using TDHF. Comparison with experimental available values.

NUCLEAR REACTIONS ²⁴⁰Pu(γ, F), E=12, 15, 20, 30 MeV; ²³⁹Pu(n, F), E=thermal; calculated mass fragment distributions using TDHF and compared with experimental data, summed energy density functionals for heavy and light fission fragments.

doi: 10.1103/PhysRevC.92.054610
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2015HE32      Phys.Rev. C 92, 064317 (2015)

A.Hennig, T.Ahn, V.Anagnostatou, A.Blazhev, N.Cooper, V.Derya, M.Elvers, J.Endres, P.Goddard, A.Heinz, R.O.Hughes, G.Ilie, M.N.Mineva, P.Petkov, S.G.Pickstone, N.Pietralla, D.Radeck, T.J.Ross, D.Savran, M.Spieker, V.Werner, A.Zilges

Collective excitations of ⁹⁶Ru by means of (p, p'γ) experiments

NUCLEAR REACTIONS ⁹⁶Ru(p, p'), E=8.4, 7 MeV; measured Ep, Ip, proton angular distributions, Eγ, Iγ, pγ- and γγ-coin, γγ(θ) using YRAST ball spectrometer at WNSL-Yale accelerator facility, level half-lives by DSAM using HORUS γ-ray spectrometer at IKP-Cologne accelerator facility. ⁹⁶Ru; deduced levels, J, π, multipolarity, mixing ratios, configuration, B(E2), B(M1), B(E1), one-phonon mixed-symmetry excitations of octupole and hexadecapole character, two-phonon mixed-symmetry quintuplet. Comparison with sdg-IBM-2 and shell-model calculations.

NUCLEAR STRUCTURE ⁹⁶Ru; calculated levels, J, π, B(M1), B(E2) using sdg-IBM-2 and shell-model. Comparison with experimental data.

doi: 10.1103/PhysRevC.92.064317
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Data from this article have been entered in the XUNDL database. For more information, click here.

2015WE06      Rom.J.Phys. 60, 819 (2015)

V.Werner, N.Cooper, P.M.Goddard, P.Humby, R.S.Ilieva

Impact of Mesoscopy on Nuclear Structure Phenomena

NUCLEAR REACTIONS ⁷⁶Se, ⁷⁶Ge(γ, γ'), E<20 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with statistical calculations.

2014HE28      Phys.Rev. C 90, 051302 (2014)

A.Hennig, M.Spieker, V.Werner, T.Ahn, V.Anagnostatou, N.Cooper, V.Derya, M.Elvers, J.Endres, P.Goddard, A.Heinz, R.O.Hughes, G.Ilie, M.N.Mineva, P.Petkov, S.G.Pickstone, N.Pietralla, D.Radeck, T.J.Ross, D.Savran, A.Zilges

Mixed-symmetry octupole and hexadecapole excitations in the N=52 isotones

NUCLEAR REACTIONS ⁹⁶Ru(p, p'), E=7.0, 8.4 MeV; measured Ep, Ip, Eγ, Iγ, pγ-coin, γγ(θ), level half-life by centroid-shift method using YRAST Ball spectrometer and Si detectors at Yale ESTU Tandem accelerator facility, and HORUS γ-detector array and particle-detector array SONIC at Cologne FN Tandem accelerator facility. ⁹⁶Ru; deduced levels, J, π, branching ratios, multipole mixing ratios, B(M1), B(E2), mixed-symmetry states (MSS) of octupole and hexadecapole character. Evidence for one-phonon mixed-symmetry character of the second 3(-) and 4+ states. Comparison with sdg-IBM-2 model calculations.

doi: 10.1103/PhysRevC.90.051302
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Data from this article have been entered in the XUNDL database. For more information, click here.

2013BU05      Phys.Rev. C 87, 044337 (2013), Pub.Note Phys.Rev. C 88, 019903 (2013)

M.Bunce, P.H.Regan, V.Werner, C.W.Beausang, V.Anagnostatou, M.Bowry, R.J.Casperson, D.Chen, N.Cooper, P.M.Goddard, R.O.Hughes, G.Ilie, P.J.R.Mason, B.Pauerstein, M.W.Reed, T.J.Ross, E.C.Simpson

High-spin study of the shell model nucleus ⁸⁸Y₄₉

NUCLEAR REACTIONS ⁷⁴Ge(¹⁸O, 3np)60, E=60 MeV; ⁷⁶Ge(¹⁸O, 5np), E=90 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) using the YRAST ball at WNSL, Yale facility. ⁸⁸Y; deduced high-spin levels, J, π, bands, configuration. Comparison with truncated valence space shell-model calculations.

NUCLEAR STRUCTURE ⁸⁸Y; calculated levels, J, π, proton occupancy, configuration. Shell model using computer code NUSHELLX.

doi: 10.1103/PhysRevC.87.044337
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Data from this article have been entered in the XUNDL database. For more information, click here.

2013GO01      Phys.Rev.Lett. 110, 032503 (2013)

P.M.Goddard, P.D.Stevenson, A.Rios

Charge Radius Isotope Shift Across the N=126 Shell Gap

NUCLEAR STRUCTURE ²¹⁰Po, ^208,210Pb; calculated neutron single particle energies, isotope shifts in mean square charge radius, proton orbitals. NRAPRii parameterization, comparison with available data.

doi: 10.1103/PhysRevLett.110.032503
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2013GO19      Phys.Rev. C 88, 064308 (2013)

P.M.Goddard, N.Cooper, V.Werner, G.Rusev, P.D.Stevenson, A.Rios, C.Bernards, A.Chakraborty, B.P.Crider, J.Glorius, R.S.Ilieva, J.H.Kelley, E.Kwan, E.E.Peters, N.Pietralla, R.Raut, C.Romig, D.Savran, L.Schnorrenberger, M.K.Smith, K.Sonnabend, A.P.Tonchev, W.Tornow, S.W.Yates

Dipole response of ⁷⁶Se above 4 MeV

NUCLEAR REACTIONS ⁷⁶Se(polarized γ, γ'), E=4-9 MeV; measured Eγ, Iγ, γ(θ), integrated σ, γ(linear polarization) at HIγS facility at TUNL. ⁷⁶Se; deduced levels, J, π, Γ, level half-lives, B(E1), B(M1), branching ratios. Comparison with theoretical calculations.

doi: 10.1103/PhysRevC.88.064308
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0187. Data from this article have been entered in the XUNDL database. For more information, click here.

2013MC01      Phys.Rev. C 87, 014307 (2013)

E.A.McCutchan, C.J.Lister, T.Ahn, V.Anagnostatou, N.Cooper, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner

Shape coexistence and high-K states in ⁷⁴Se populated following the β decay of ⁷⁴Br

RADIOACTIVITY ⁷⁴Br(EC), (β⁺)[from ⁶⁰Ni(¹⁶O, pn), E=52 MeV]; measured Eγ, Iγ, γγ-coin, γγ(θ) using YRAST Ball Clover detectors at WNSL, Yale facility. ⁷⁴Se; deduced levels, J, π, branching ratios, β strength function, multipolarity, mixing ratio, configuration, B(E2), shape coexistence. Possible K=2 excitation in the second minimum.

doi: 10.1103/PhysRevC.87.014307
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Data from this article have been entered in the XUNDL database. For more information, click here.

2012BU18      J.Phys.:Conf.Ser. 381, 012068 (2012)

M.Bunce, P.H.Regan, V.Werner, V.Anagnostatou, C.W.Beausang, M.Bowry, R.J.Casperson, D.Chen, N.Cooper, P.Goddard, R.O.Hughes, G.Ilie, P.J.R.Mason, B.Pauerstein, M.W.Reed, T.J.Ross

A shell model study of the high spin states of ⁸⁸Y

NUCLEAR REACTIONS ⁷⁴Ge(¹⁸O, 3np), E=60, 65, 70 MeV;⁷⁶Ge(¹⁸O, 5np), E=90 MeV; measured prompt, delayed Eγ, Iγ(θ), γγ-coin using YRAST ball detector array consisting of 10 Compton-suppressed HPGe and including Doppler shift corrections, γ polarization using Compton polarimeter; calculated σ, σ(l) using PACE4, levels, J, π using NuShell code. ⁸⁸Y deduced levels, J, π, γ transitions.

doi: 10.1088/1742-6596/381/1/012068
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2012CO17      Phys.Rev. C 86, 034313 (2012)

N.Cooper, F.Reichel, V.Werner, L.Bettermann, B.Alikhani, S.Aslanidou, C.Bauer, L.Coquard, M.Fritzsche, Y.Fritzsche, J.Glorius, P.M.Goddard, T.Moller, N.Pietralla, M.Reese, C.Romig, D.Savran, L.Schnorrenberger, F.Siebenhuhner, V.V.Simon, K.Sonnabend, M.K.Smith, C.Walz, S.W.Yates, O.Yevetska, M.Zweidinger

Photoresponse of ⁷⁶Se below 9 MeV

NUCLEAR REACTIONS ⁷⁶Se(γ, γ'), E<9 MeV; measured Eγ, Iγ, γ(θ), integrated σ using S-DALINAC facility at the TU Darmstadt. ⁷⁶Se; deduced levels, J, π, B(E1), B(M1), level half-lives, reduced E1 strength distribution, candidates for 2+ and fragment of the 1+ mixed-symmetry states.

doi: 10.1103/PhysRevC.86.034313
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetG0034. Data from this article have been entered in the XUNDL database. For more information, click here.

2012KU14      Phys.Rev. C 85, 044322 (2012)

G.J.Kumbartzki, K.-H.Speidel, N.Benczer-Koller, D.A.Torres, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, P.Maier-Komor, T.Ahn, V.Anagnostatou, Ch.Bernards, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, E.Williams

Structure of the Sr-Zr isotopes near and at the magic N=50 shell from g-factor and lifetime measurements in ⁸⁸₄₀Zr and ^{84, 86,} ₃₈⁸⁸Sr

NUCLEAR REACTIONS ¹²C(⁸⁴Sr, X)⁸⁴Sr/⁸⁶Sr/⁸⁸Sr/⁸⁸Zr, E=243-285 MeV; measured Eγ, Iγ, (¹²C)γ-, αγ-, γγ-coin, level half-lives by DSA, g factors. ^84,86,88Sr, ⁸⁸Zr; deduced levels, J, π, B(E2). Systematics of B(E2) values for first 2+ states in even-even N=40-62 Sr and Zr nuclei.

NUCLEAR MOMENTS ⁸⁸Zr, ^84,86,88Sr; measured g factors of 2+ and first 4+ states using transient field technique in inverse kinematics. Comparison with previous studies and with shell model calculations. Systematics of g factors of first 2+ states in even-even N=42-62 Sr and Zr nuclei.

doi: 10.1103/PhysRevC.85.044322
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Data from this article have been entered in the XUNDL database. For more information, click here.

2012TO01      Phys.Rev. C 85, 017305 (2012)

D.A.Torres, G.J.Kumbartzki, Y.Y.Sharon, L.Zamick, B.Manning, N.Benczer-Koller, K.-H.Speidel, T.Ahn, V.Anagnostatou, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, G.Gurdal, M.J.Taylor, P.Maier-Komor, M.Hjorth-Jensen, S.J.Q.Robinson

Measurement of the ⁹⁶Ru g(4₁⁺) factor and its nuclear structure interpretation

NUCLEAR REACTIONS ¹²C(⁹⁶Ru, ⁹⁶Ru'), E=343, 353 MeV; measured ¹²C spectra, Eγ, Iγ, (¹²C)g-coin, (¹²C)γ(θ), precession angle in transient magnetic field, half-life by DSAM. ⁹⁶Ru; deduced level, half-life of first 2+, g factors of first 2+ and 4+ states, B(E2). Coulomb excitation in inverse kinematics. Comparison with large-scale shell-model calculations.

NUCLEAR MOMENTS ⁹⁶Ru; measured g factors of first 2+ and 4+ states by transient magnetic field technique in inverse kinematics.

doi: 10.1103/PhysRevC.85.017305
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Data from this article have been entered in the XUNDL database. For more information, click here.

2011EL09      Phys.Rev. C 84, 054323 (2011)

M.Elvers, S.Pascu, T.Ahmed, T.Ahn, V.Anagnostatou, N.Cooper, C.Deng, J.Endres, P.Goddard, A.Heinz, G.Ilie, E.Jiang, C.Kuppersbusch, D.Radeck, D.Savran, N.Shenkov, V.Werner, A.Zilges

Investigation of octupole vibrational states in ¹⁵⁰Nd via inelastic proton scattering (p, p'γ)

NUCLEAR REACTIONS ¹⁵⁰Nd(p, p'), E=10.9 MeV; measured Eγ, Iγ, γγ-, pγ-coin using YRAST Ball at Yale. ¹⁵⁰Nd; deduced levels, J, π, branching ratios, B(E1) ratios, B(E2) octupole and positive-parity bands. Comparison with interacting boson approximation in sdpf boson space.

doi: 10.1103/PhysRevC.84.054323
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Data from this article have been entered in the XUNDL database. For more information, click here.

2011TO09      Phys.Rev. C 84, 044327 (2011)

D.A.Torres, G.J.Kumbartzki, Y.Y.Sharon, L.Zamick, B.Manning, N.Benczer-Koller, G.Gurdal, K.-H.Speidel, M.Hjorth-Jensen, P.Maier-Komor, S.J.Q.Robinson, T.Ahn, V.Anagnostatou, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner

First g-factor measurements of the 2₁⁺ and the 4₁⁺ states of radioactive ¹⁰⁰Pd

NUCLEAR REACTIONS ¹²C(⁹⁶Ru, ⁸Be), E=350 MeV; measured particle spectra, Eγ, Iγ, αγ-, γγ-coin, γγ(θ), precession angle. ¹⁰⁰Pd; deduced levels, J, π, g factors, B(E2) values.

NUCLEAR MOMENTS ¹⁰⁰Pd; measured g-factors of first 2+, 4+ states by transient magnetic field technique in inverse kinematics. Comparison with large-scale shell-model calculations and collective-model predictions.

doi: 10.1103/PhysRevC.84.044327
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Data from this article have been entered in the XUNDL database. For more information, click here.

Note: The following list of authors and aliases matches the search parameter P.Goddard: , P.M.GODDARD