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NSR database version of April 11, 2024.

Search: Author = T.Ross

Found 35 matches.

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2022RA12      Nucl.Phys. A1023, 122446 (2022)

A.P.D.Ramirez, E.E.Peters, J.R.Vanhoy, S.F.Hicks, L.A.Alasagas, D.K.Alcorn-Dominguez, S.T.Block, S.T.Byrd, E.A.Chouinard, B.M.Combs, B.P.Crider, E.C.Derdyn, L.Downes, J.A.Erlanson, S.E.Evans, A.J.French, E.A.Garza, J.Girgis, T.D.Harrison, S.L.Henderson, T.J.Howard, D.T.Jackson, L.J.Kersting, A.Kumar, S.H.Liu, C.J.Lueck, E.M.Lyons, P.J.McDonough, M.T.McEllistrem, T.J.Morin, S.Mukhopadhyay, T.A.Nguyen, M.Nickel, S.Nigam, R.L.Pecha, J.Potter, F.M.Prados-Estevez, B.G.Rice, T.J.Ross, Z.C.Santonil, J.Schneiderjan, L.C.Sidwell, A.J.Sigillito, J.L.Steves, B.K.Thompson, D.W.Watts, Y.Xiao, S.W.Yates

Neutron elastic and inelastic scattering differential cross sections on carbon

NUCLEAR REACTIONS C(n, n), (n, n'), E=0.5-8 MeV; measured reaction products, En, In, TOF; deduced σ(θ). Comparison with ENDF/B-VIII.0 library. The Univ ersity of Kentucky Accelerator Laboratory (UKAL).

doi: 10.1016/j.nuclphysa.2022.122446
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14784.


2020BE22      Phys.Rev.Lett. 125, 092501 (2020)

T.Beck, V.Werner, N.Pietralla, M.Bhike, N.Cooper, U.Friman-Gayer, J.Isaak, R.V.Jolos, J.Kleemann, Krishichayan, O.Papst, W.Tornow, C.Bernards, B.P.Crider, R.S.Ilieva, B.Loher, C.Mihai, F.Naqvi, S.Pascu, E.E.Peters, F.M.Prados-Estevez, T.J.Ross, D.Savran, J.R.Vanhoy, A.Zilges

ΔK = 0 m1 Excitation Strength of the Well-Deformed Nucleus 164Dy from K Mixing

NUCLEAR REACTIONS 164Dy(γ, γ'), E=3-3.2 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, B(M1), reduced relative decay-intensity ratios, excitation strengths.

doi: 10.1103/PhysRevLett.125.092501
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020PA32      Phys.Rev. C 102, 034323 (2020)

O.Papst, V.Werner, J.Isaak, N.Pietralla, T.Beck, C.Bernards, M.Bhike, N.Cooper, B.P.Crider, U.Friman-Gayer, J.Kleemann, Krishichayan, B.Loher, F.Naqvi, E.E.Peters, F.M.Prados-Estevez, R.S.Ilieva, T.J.Ross, D.Savran, W.Tornow, J.R.Vanhoy

Photo response of 164Dy

NUCLEAR REACTIONS 164Dy(polarized γ, γ'), E=4.0-7.7 MeV; measured Eγ, Iγ, γ(polarization azimuthal asymmetry) using four HPGe detectors at the HIγS facility of TUNL. 164Dy; deduced levels, J, π, energy-integrated cross sections, widths, B(E1), B(M1), γ-branching ratios to the ground state and the first 2+ state, mean population ratios of the first and second 2+ states, and first 3+ state, photon strength function (PSF) and nuclear level density (NLD). Comparison with statistical model calculations.

doi: 10.1103/PhysRevC.102.034323
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0268. Data from this article have been entered in the XUNDL database. For more information, click here.


2019RA04      Phys.Rev.Lett. 122, 052502 (2019)

A.Ratkiewicz, J.A.Cizewski, J.E.Escher, G.Potel, J.T.Burke, R.J.Casperson, M.McCleskey, R.A.E.Austin, S.Burcher, R.O.Hughes, B.Manning, S.D.Pain, W.A.Peters, S.Rice, T.J.Ross, N.D.Scielzo, C.Shand, K.Smith

Towards Neutron Capture on Exotic Nuclei: Demonstrating (d, pγ) as a Surrogate Reaction for (n, γ)

NUCLEAR REACTIONS 95Mo(d, p), E=12.4 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.122.052502
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Data from this article have been entered in the XUNDL database. For more information, click here.


2018ES05      Phys.Rev.Lett. 121, 052501 (2018)

J.E.Escher, J.T.Burke, R.O.Hughes, N.D.Scielzo, R.J.Casperson, S.Ota, H.I.Park, A.Saastamoinen, T.J.Ross

Constraining Neutron Capture Cross Sections for Unstable Nuclei with Surrogate Reaction Data and Theory

NUCLEAR REACTIONS 87Y(n, γ), E<10 MeV; analyzed available data; deduced σ using surrogate reaction data. Comparison with TENDL 2015 and ROSFOND 2010 libraries. 89Y, 92Zr(p, d), E*=6-12 MeV; calculated σ(E, θ), probability of observing specific γ-ray in coincidence with outgoing deuteron; compared with available data.

doi: 10.1103/PhysRevLett.121.052501
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2018PE12      Phys.Rev. C 98, 034302 (2018)

E.E.Peters, P.Van Isacker, A.Chakraborty, B.P.Crider, A.Kumar, S.H.Liu, M.T.McEllistrem, C.V.Mehl, F.M.Prados-Estevez, T.J.Ross, J.L.Wood, S.W.Yates

Seniority structure of 136Xe82

NUCLEAR REACTIONS 136Xe(n, n'), E=2.5-4.1 MeV; measured Eγ, Iγ, γ(θ), level half-lives by DSAM, σ(E) using an HPGe detector surrounded by an annular BGO detector at the University of Kentucky Accelerator Laboratory. 136Xe; deduced levels, J, π, B(E2), B(M1), B(E1), branching ratios, multipole mixing ratios, configurations. Comparison with shell model calculations.

doi: 10.1103/PhysRevC.98.034302
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2018VA02      Nucl.Phys. A972, 107 (2018)

J.R.Vanhoy, S.H.Liu, S.F.Hicks, B.M.Combs, B.P.Crider, A.J.French, E.A.Garza, T.Harrison, S.L.Henderson, T.J.Howard, M.T.McEllistrem, S.Nigam, R.L.Pecha, E.E.Peters, F.M.Prados-Estevez, A.P.D.Ramirez, B.G.Rice, T.J.Ross, Z.C.Santonil, L.C.Sidwell, J.L.Steves, B.K.Thompson, S.W.Yates

54Fe neutron elastic and inelastic scattering differential cross sections from 2-6 MeV

NUCLEAR REACTIONS 54Fe(n, n), (n, n'), E=2-6 MeV; measured En, In(θ); deduced σ(θ); calculated σ(θ) using coupled channels, TALYS, DWBA code ECIS06; deduced increase of DWBA deformation parameter above 4 MeV by about 1/4 using fit to the data.

doi: 10.1016/j.nuclphysa.2018.02.004
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14451.


2017AL11      Eur.Phys.J. A 53, 62 (2017)

J.M.Allmond, C.W.Beausang, T.J.Ross, P.Humby, M.S.Basunia, L.A.Bernstein, D.L.Bleuel, W.Brooks, N.Brown, J.T.Burke, B.K.Darakchieva, K.R.Dudziak, K.E.Evans, P.Fallon, H.B.Jeppesen, J.D.LeBlanc, S.R.Lesher, M.A.McMahan, D.A.Meyer, L.Phair, J.O.Rasmussen, N.D.Scielzo, S.R.Stroberg, M.Wiedeking

Particle-γ coincidence spectroscopy of the N = 90 nucleus 154Gd by (p, tγ)

NUCLEAR REACTIONS 156Gd(p, tγ)154Gd, E=25 MeV; measured Eγ, Iγ(θ), γ∓coin, E(t), I(t), tγ-coin using segmented Si telescope array and HPGe array; deduced triton energy spectra, σ(θ) to discrete states. 154Gd; deduced level scheme, rotational bands. Compared with other (p, t) and (t, p) data.

doi: 10.1140/epja/i2017-12253-2
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2258. Data from this article have been entered in the XUNDL database. For more information, click here.


2017MU04      Phys.Rev. C 95, 015805 (2017)

J.M.Munson, E.B.Norman, J.T.Burke, R.J.Casperson, L.W.Phair, E.McCleskey, M.McCleskey, D.Lee, R.O.Hughes, S.Ota, A.Czeszumska, P.A.Chodash, A.J.Saastamoinen, R.A.E.Austin, A.E.Spiridon, M.Dag, R.Chyzh, M.S.Basunia, J.J.Ressler, T.J.Ross

Decay branching ratios of excited 24Mg

NUCLEAR REACTIONS 24Mg(α, α'), E=40 MeV; measured decay products identified by outgoing α particles, protons and γ rays from the resulting 20Ne, 23Na, and 23Mg daughters, (particle)(particle)-coin, αγ-coin using the STARLiTeR detector array at Texas A and M K150 cyclotron facility; deduced branching ratios for α-, proton- and neutron-emitting channels from the decay of unbound states in 24Mg. Possible surrogate reaction for 12C(12C, α)20Ne, 12C(12C, p)23Na, 12C(12C, n)23Mg reactions of astrophysical interest. 20Ne, 23Na, 23Mg; deduced levels populated by the decay of excited states of 24Mg.

doi: 10.1103/PhysRevC.95.015805
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2017PE04      Phys.Rev. C 95, 014325 (2017)

E.E.Peters, T.J.Ross, S.H.Liu, M.T.McEllistrem, S.W.Yates

Inelastic neutron scattering cross section measurements for 134, 136Xe of relevance to neutrinoless double-β decay searches

NUCLEAR REACTIONS 134,136Xe(n, n'γ), E=2.5-4.5 MeV; measured Eγ, Iγ, γ(θ), σ(E) at the University of Kentucky Accelerator Laboratory (UKAL). 134,136Xe; deduced levels, γ-ray branching ratios. Relevance to 0νββ measurements using the EXO-200 detector.

doi: 10.1103/PhysRevC.95.014325
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14465. Data from this article have been entered in the XUNDL database. For more information, click here.


2016HU02      Phys.Rev. C 93, 024315 (2016)

R.O.Hughes, J.T.Burke, R.J.Casperson, J.E.Escher, S.Ota, J.J.Ressler, N.D.Scielzo, R.A.E.Austin, B.Abromeit, N.J.Foley, E.McCleskey, M.McCleskey, H.I.Park, T.J.Ross, A.Saastamoinen

Investigation of 88Y via (p, dγ) reactions

NUCLEAR REACTIONS 89Y(p, d), E=28.5 MeV; measured E(d), I(d), Eγ, Iγ, dγ-, dγγ-coin, dγ(t) using STARLiTeR array of Si detectors for deuteron detection and five HPGe clover detectors for γ rays at Texas A and M Cyclotron Institute. 88Y; deduced levels, J, π, level population intensities. Discussed effect of γ-branching ratios in 88Y on determination of 87Y(n, γ) cross section via surrogate method.

doi: 10.1103/PhysRevC.93.024315
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016HU22      Phys.Rev. C 94, 064314 (2016)

P.Humby, A.Simon, C.W.Beausang, J.M.Allmond, J.T.Burke, R.J.Casperson, R.Chyzh, M.Dag, K.Gell, R.O.Hughes, J.Koglin, E.McCleskey, M.McCleskey, S.Ota, T.J.Ross, A.Saastamoinen, T.Tarlow, G.Vyas

Investigation of discrete states and quasidiscrete structures observed in 150Sm and 152Sm using the (p, tγ) reaction

NUCLEAR REACTIONS 152,154Sm(p, t), E=25 MeV; measured triton spectra, Eγ, Iγ, (triton)γ-, (triton)γγ-coin, σ(θ), angular distribution of peak-like structure (PLS) using the STARLiTeR array at Texas A and M cyclotron facility. Enriched targets. 150,152Sm; deduced levels, J, π, L-transfers. DWBA analysis of σ(θ) data. Comparison with evaluated data taken from the ENSDF database.

doi: 10.1103/PhysRevC.94.064314
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016PE13      Phys.Rev. C 94, 024313 (2016)

E.E.Peters, T.J.Ross, S.F.Ashley, A.Chakraborty, B.P.Crider, M.D.Hennek, S.H.Liu, M.T.McEllistrem, S.Mukhopadhyay, F.M.Prados-Estevez, A.P.D.Ramirez, J.S.Thrasher, S.W.Yates

0+states in 130, 132Xe: A search for E(5) behavior

NUCLEAR REACTIONS 130Xe(n, n'), E=2.0, 2.5 MeV; 132Xe(n, n'), E=2.2, 2.7 MeV; measured Eγ, Iγ, γ(θ), cross sections for level population, level half-lives by DSAM at the University of Kentucky Van de Graaff accelerator facility. 130,132Xe; deduced levels, J, π, γ-branching ratios, multipolarity, mixing ratio, B(E2). Discussed E(5) critical-point symmetry. Comparison of experimental cross sections with statistical model calculations. Systematics of energies and B(E2) of first 2+ states and E(first 4+)/E(first 2+) ratios in N=56-90 even-A Xe isotopes taken from the ENSDF database.

doi: 10.1103/PhysRevC.94.024313
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016SI07      Phys.Rev. C 93, 034303 (2016)

A.Simon, M.Guttormsen, A.C.Larsen, C.W.Beausang, P.Humby, J.T.Burke, R.J.Casperson, R.O.Hughes, T.J.Ross, J.M.Allmond, R.Chyzh, M.Dag, J.Koglin, E.McCleskey, M.McCleskey, S.Ota, A.Saastamoinen

First observation of low-energy γ-ray enhancement in the rare-earth region

NUCLEAR REACTIONS 152,154Sm(p, dγ), E=25 MeV; measured reaction products, Eγ, Iγ, (particle)γ-coin, γ(θ) using STARLiTeR setup for charged-particles, and Ge clover detectors with Compton suppressors for γ rays at K-150 cyclotron at Texas A and M; deduced level density (LD) and γ-ray strength function (γSF) using OSLO method, multipolarity, enhanced low-energy γ-ray strength for rare-earth nuclei, coexistence with the scissors resonance. Comparison with Hauser-Feshbach calculations. Calculated ratios of Maxwellian-averaged (n, γ) reaction rates at T9=0.15 and 1.5 for A=145-202 Sm isotopes.

doi: 10.1103/PhysRevC.93.034303
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2015CR06      Phys.Rev. C 92, 034310 (2015)

B.P.Crider, E.E.Peters, J.M.Allmond, M.T.McEllistrem, F.M.Prados-Estevez, T.J.Ross, J.R.Vanhoy, S.W.Yates

Inelastic neutron scattering cross sections for 76Ge relevant to background in neutrinoless double-β decay experiments

NUCLEAR REACTIONS 76Ge(n, n'), E<4.9 MeV; measured Eγ, Iγ, γ(θ), σ(E), level half-lives by DSAM for different chemical compositions of the target material at Kentucky Van de Graaff Accelerator Laboratory 76Ge; deduced levels, J, π, γ-branching ratios. Relevance to neutrinoless double-β decay search of 76Ge.

doi: 10.1103/PhysRevC.92.034310
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14442. Data from this article have been entered in the XUNDL database. For more information, click here.


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.


2015HU02      Phys.Rev. C 91, 024322 (2015)

P.Humby, A.Simon, C.W.Beausang, T.J.Ross, R.O.Hughes, J.T.Burke, R.J.Casperson, J.Koglin, S.Ota, J.M.Allmond, M.McCleskey, E.McCleskey, A.Saastamoinen, R.Chyzh, M.Dag, K.Gell, T.Tarlow, G.Vyas

Improved measurement of the half-life of the Jπ = 8- nuclear isomer 152m2Eu

NUCLEAR REACTIONS 154Sm(p, 3n)152mEu, E=25 MeV; measured Eγ, Iγ, delayed γ, half-lives of 0- and 8- isomers in 152Eu by γ(t) using STARS array for particle detection and LiTer array for γ detection at the Texas A and M, K-150 cyclotron facility. Comparison with earlier experimental results.

RADIOACTIVITY 152Eu(β-), (EC)[from 154Sm(p, 3n), E=25 MeV]; measured Eγ, Iγ, half-life of the 0- isomer in 152Eu. Comparison with earlier experimental results.

doi: 10.1103/PhysRevC.91.024322
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Data from this article have been entered in the XUNDL database. For more information, click here.


2015OT02      Phys.Rev. C 92, 054603 (2015)

S.Ota, J.T.Burke, R.J.Casperson, J.E.Escher, R.O.Hughes, J.J.Ressler, N.D.Scielzo, I.J.Thompson, R.A.E.Austin, B.Abromeit, N.J.Foley, E.McCleskey, M.McCleskey, H.I.Park, A.Saastamoinen, T.J.Ross

Spin differences in the 90Zr compound nucleus induced by (p, p'), (p, d), and (p, t) surrogate reactions

NUCLEAR REACTIONS 90Zr(p, p'), (p, np), 91Zr(p, d), 92Zr(p, t), E=28.56 MeV; measured light-ion particle spectra, angular distributions, Eγ, Iγ, (particle)γ-coin, using STARLiTeR detector system at Texas A and M cyclotron facility; deduced γ-decay probabilities as functions of 90Zr excitation energy, angular momentum, and particle scattering angle. Enriched targets. 89,90Zr; deduced levels, J, π. 89Zr(n, γ); discussed relevance to determination of σ by surrogate reaction approach.

doi: 10.1103/PhysRevC.92.054603
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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.


2014HU12      Phys.Rev. C 90, 014304 (2014)

R.O.Hughes, C.W.Beausang, T.J.Ross, J.T.Burke, R.J.Casperson, N.Cooper, J.E.Escher, K.Gell, E.Good, P.Humby, M.McCleskey, A.Saastimoinen, T.D.Tarlow, I.J.Thompson

236Pu(n, f), 237Pu(n, f), and 238Pu(n, f) cross sections deduced from (p, t), (p, d), and (p, p') surrogate reactions

NUCLEAR REACTIONS 235U, 239Pu(p, t), (p, d), (p, p'), E=28.5 MeV; measured particle and γ spectra, (particle)γ-, (particle)(particle)-, (d)(fission)-coin, cross sections using STARLiTeR array at Texas A-M cyclotron facility. 232,233U, 236,237Pu(n, F), E=0.5-7.5 MeV; deduced σ(E) ratios. 238Pu(n, F), E=0.5-10.5 MeV; deduced σ(E) from (p, p') and σ for 234U(n, F) in ENDF/B-VII evaluation. Surrogate ratio method. Comparison with ENSDF/B-VII evaluations, and some previous experimental results.

doi: 10.1103/PhysRevC.90.014304
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14396.


2014RO25      Phys.Rev. C 90, 044323 (2014)

T.J.Ross, R.O.Hughes, J.M.Allmond, C.W.Beausang, C.T.Angell, M.S.Basunia, D.L.Bleuel, J.T.Burke, R.J.Casperson, J.E.Escher, P.Fallon, R.Hatarik, J.Munson, S.Paschalis, M.Petri, L.W.Phair, J.J.Ressler, N.D.Scielzo

Spectroscopy of 153Gd and 157Gd using the (p, dγ) reaction

NUCLEAR REACTIONS 154,158Gd(p, d), E=25 MeV; measured Eγ, Iγ, E(d), I(d), dγ-, dγγ-coin, d(θ) in coincidence with γ rays using STARS and LIBERACE arrays at LBNL cyclotron facility. 153,157Gd; deduced levels, J, π, L-transfers, Nilsson assignments. DWBA analysis of angular distribution data. Comparison with previous experimental results. Discussed residual effects of a neutron subshell closure at N=64.

doi: 10.1103/PhysRevC.90.044323
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2138. 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.


2013CR02      Phys.Rev.Lett. 110, 242701 (2013)

H.L.Crawford, R.M.Clark, P.Fallon, A.O.Macchiavelli, T.Baugher, D.Bazin, C.W.Beausang, J.S.Berryman, D.L.Bleuel, C.M.Campbell, M.Cromaz, G.de Angelis, A.Gade, R.O.Hughes, I.Y.Lee, S.M.Lenzi, F.Nowacki, S.Paschalis, M.Petri, A.Poves, A.Ratkiewicz, T.J.Ross, E.Sahin, D.Weisshaar, K.Wimmer, R.Winkler

Quadrupole Collectivity in Neutron-Rich Fe and Cr Isotopes

NUCLEAR REACTIONS Bi(66Fe, 66Fe'), (68Fe, 68Fe'), (64Cr, 64Cr'), E<130 MeV/nucleon; measured reaction products, Eγ, Iγ. 66,68Fe, 64Cr; deduced σ, B(E2). Comparison with state-of-the-art large-scale shell-model calculations within the full fpgd neutron orbital model space using the Lenzi-Nowacki-Poves-Sieja effective interaction.

doi: 10.1103/PhysRevLett.110.242701
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Data from this article have been entered in the XUNDL database. For more information, click here.


2013CZ01      Phys.Rev. C 87, 034613 (2013)

A.Czeszumska, C.T.Angell, J.T.Burke, N.D.Scielzo, E.B.Norman, R.A.E.Austin, G.Boutoux, R.J.Casperson, P.Chodash, R.O.Hughes, C.M.Mattoon, V.Meot, J.Munson, L.Phair, J.J.Ressler, O.Roig, T.J.Ross, E.Swanberg, B.Wang

Determining the 239Np(n, f) cross section using the surrogate ratio method

NUCLEAR REACTIONS 236,238U(3He, pF), E=29 MeV; measured proton, deuteron, triton, 3,4He spectra, fission events, fission anisotropies, particle-fission time-to-amplitude spectrum, (fission)p-coin using STARS array at LBNL cyclotron facility. 239Np(n, F), E=0.5-20 MeV; deduced cross section by surrogate ratio method. Comparison with ENDF/B-VII.0, JENDL-4.0, and CENDL-3.1 evaluated libraries. Impact on estimate of 240Pu produced during fuel burnup in calculations using reactor codes.

doi: 10.1103/PhysRevC.87.034613
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2013RO23      Phys.Rev. C 88, 031301 (2013)

T.J.Ross, R.O.Hughes, C.W.Beausang, J.M.Allmond, C.T.Angell, M.S.Basunia, D.L.Bleuel, J.T.Burke, R.J.Casperson, J.E.Escher, P.Fallon, R.Hatarik, J.Munson, S.Paschalis, M.Petri, L.W.Phair, J.J.Ressler, N.D.Scielzo

Remnants of spherical shell structures in deformed nuclei: The impact of an N=64 neutron subshell closure on the structure of N≈90 gadolinium nuclei

NUCLEAR REACTIONS 154,156,158Gd(p, d), E=25 MeV; measured deuteron and γ spectra, dγ-, γγ-coin, σ(θ) for deuterons using STARS and LIBERACE detector systems at LBNL facility. DWBA analysis of σ(θ) data. 153,155, 157Gd; deduced low-energy levels, J, π, Nilsson configurations, persistence of spherical shell structure.

doi: 10.1103/PhysRevC.88.031301
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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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2012HU01      Phys.Rev. C 85, 024613 (2012)

R.O.Hughes, C.W.Beausang, T.J.Ross, J.T.Burke, N.D.Scielzo, M.S.Basunia, C.M.Campbell, R.J.Casperson, H.L.Crawford, J.E.Escher, J.Munson, L.W.Phair, J.J.Ressler

Utilizing (p, d) and (p, t) reactions to obtain (n, f) cross sections in uranium nuclei via the surrogate-ratio method

NUCLEAR REACTIONS 236,238U(p, d), (p, t), E=28 MeV; measured E(d), I(d), E(t), I(t), fission spectra, (particle)(fission)-, (particle)γ-coin, fission fragment anisotropy ratios using STARS detector array at LBNL cyclotron facility; deduced σ[236U(n, F)]/σ[234U(n, F)], σ[235U(n, F)]/σ[233U(n, F)], σ[234U(n, F)]/σ[233U(n, F)], σ[236U(n, F)]/σ[235U(n, F)] reaction cross section ratios for E(n)=0-7 MeV. Surrogate-ratio method. Comparison with ENDF/B-VII evaluation.

doi: 10.1103/PhysRevC.85.024613
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2012HU14      J.Phys.:Conf.Ser. 381, 012064 (2012)

R.O.Hughes, C.W.Beausang, T.J.Ross, J.T.Burke, N.D.Scielzo, M.S.Basunia, C.M.Campbell, R.J.Casperson, H.L.Crawford, J.Munson, L.Phair, J.J.Ressler

To the continuum and beyond: Structure of U nuclei

NUCLEAR REACTIONS 236,238U(p, X), E=28 MeV; measured outgoing light ions using STARS Si telescope, (particle)(fission)-coin, Eγ, Iγ using Ge detectors of LIBERACE array, (particle)γ-coin; deduced σ(234U(n, f))/σ(236U(n, f)) ratio vs neutron energy using (p, dF) surrogate. 235,237U deduced levels, J, π, γ transitions.

doi: 10.1088/1742-6596/381/1/012064
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2012RO14      Phys.Rev. C 85, 051304 (2012)

T.J.Ross, C.W.Beausang, R.O.Hughes, J.M.Allmond, C.T.Angell, M.S.Basunia, D.L.Bleuel, J.T.Burke, R.J.Casperson, J.E.Escher, P.Fallon, R.Hatarik, J.Munson, S.Paschalis, M.Petri, L.Phair, J.J.Ressler, N.D.Scielzo, I.J.Thompson

Measurement of the entry-spin distribution imparted to the high excitation continuum region of gadolinium nuclei via (p, d) and (p, t) reactions

NUCLEAR REACTIONS 154,158Gd(p, d), (p, t), E=25 MeV; measured particle and γ spectra, pγ-, dγ-, tγ-coin, σ(θ) using STARS-LIBERACE array; deduced entry spin distribution for the highly excited quasicontinuum in light-ion transfer reactions. DWBA analysis of σ(θ) data. 153,156Gd; deduced levels, J, π, l-transfer.

doi: 10.1103/PhysRevC.85.051304
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2012RO42      Phys.Rev. C 86, 067301 (2012)

T.J.Ross, C.W.Beausang, R.O.Hughes, N.D.Scielzo, J.T.Burke, J.M.Allmond, C.T.Angell, M.S.Basunia, D.L.Bleuel, R.J.Casperson, J.E.Escher, P.Fallon, R.Hatarik, J.Munson, S.Paschalis, M.Petri, L.Phair, J.J.Ressler

Spectroscopy of 88Y by the (p, dγ) reaction

NUCLEAR REACTIONS 89Y(p, d), E=25 MeV; measured E(d), I(d), Eγ, Iγ, dγ-coin, yields using STARS array for deuterons and LIBERACE array for γ rays at LBNL cyclotron facility. 88Y; deduced levels, branching ratios. 89Y(p, p'), (p, p'n), E=25 MeV; measured Ep, Ip, pγ-coin.

doi: 10.1103/PhysRevC.86.067301
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2011BE57      J.Phys.:Conf.Ser. 312, 092017 (2011)

J.S.Berryman, R.M.Clark, K.E.Gregorich, J.M.Allmond, D.L.Bleuel, R.J.Cooper, M.Cromaz, M.A.Deleplanque, I.Dragojevic, J.Dvorak, P.A.Ellison, P.Fallon, M.A.Garcia, J.M.Gates, S.Gros, O.Gothe, H.B.Jeppesen, D.Kaji, I.Y.Lee, A.O.Macchiavelli, K.Morimoto, H.Nitsche, S.Paschalis, M.Petri, J.Qian, L.Stavsetra, F.S.Stephens, M.A.Stoyer, T.J.Ross, H.Watanabe, M.Wiedeking

Nuclear spectroscopy of the heaviest elements: studies of 254No, 257Rf, and 261Sg

NUCLEAR REACTIONS 208Pb(48Ca, 2n), E=221 MeV;208Pb(50Ti, n), E=238 MeV;208Pb(54Cr, n), E=261 MeV; measured Eγ, Iγ using HPGe, recoils using MWPC, Eα, Iα, E(e), I(e), eγ-coin. 254No, 257Rf deduced levels, J, π, γ transitions, isomeric transition T1/2, bands, 257Rf α-decay T1/2, 254No g-factor.

doi: 10.1088/1742-6596/312/9/092017
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2011BU11      J.Korean Phys.Soc. 59, 1892s (2011)

J.T.Burke, J.J.Ressler, J.E.Escher, N.D.Scielzo, I.J.Thompson, R.Henderson, J.Gostic, L.Bernstein, D.Bluel, M.Weideking, V.Meot, O.Roig, L.W.Phair, R.Hatarik, J.Munson, C.Angell, B.Goldblum, C.W.Beausang, T.Ross, R.Hughes, M.Aiche, G.Barreau, N.Cappelan, S.Czajkowski, B.Hass, B.Jurado, L.Mathieu, I.Companis

Experimental Approaches to Studying the Fission Process Using the Surrogate Reaction Technique

NUCLEAR REACTIONS 235,236U, 239Pu(α, α'), E=55 MeV; measured E(charged particle), I(charged particle), Eγ, Iγ(θ), γγ-coin, fission products using STARS (Silicon Telescope Array for Reaction Studies), LIBERACE, HYDRA; deduced σ 238Pu(n, F) below 20 MeV using surrogate reactions. Comparison with other data.

doi: 10.3938/jkps.59.1892
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2011RE09      Phys.Rev. C 83, 054610 (2011)

J.J.Ressler, J.T.Burke, J.E.Escher, C.T.Angell, M.S.Basunia, C.W.Beausang, L.A.Bernstein, D.L.Bleuel, R.J.Casperson, B.L.Goldblum, J.Gostic, R.Hatarik, R.Henderson, R.O.Hughes, J.Munson, L.W.Phair, T.J.Ross, N.D.Scielzo, E.Swanberg, I.J.Thompson, M.Wiedeking

Surrogate measurement of the 238Pu(n, f) cross section

NUCLEAR REACTIONS 239Pu(α, α'F), 235U(α, α'F), 236U(α, α'F), E=20-55 MeV; measured particle and fission fragment spectra, α-fission coincidences, cross sections, fission fragment anisotropy ratios. 238Pu, 234,235U(n, F), E=5-20 MeV; deduced fission cross sections using surrogate ratio method. Comparison with previous experimental data and evaluated libraries. Data needs for following reactions for next-generation reactors: 241Pu, 241,242Am, 243,244,245Cm(n, F), E.1 MeV. Potential surrogate and ratio reactions listed.

doi: 10.1103/PhysRevC.83.054610
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2010AL15      Phys.Rev. C 81, 064316 (2010)

J.M.Allmond, C.W.Beausang, J.O.Rasmussen, T.J.Ross, M.S.Basunia, L.A.Bernstein, D.L.Bleuel, W.Brooks, N.Brown, J.T.Burke, B.K.Darakchieva, K.R.Dudziak, K.E.Evans, P.Fallon, H.B.Jeppesen, J.D.LeBlanc, S.R.Lesher, M.A.McMahan, D.A.Meyer, L.Phair, N.D.Scielzo, S.R.Stroberg, M.Wiedeking

Particle-γ spectroscopy of the (p, d-γ)155Gd reaction: Neutron single-quasiparticle states at N=91

NUCLEAR REACTIONS 156Gd(p, d), E=25 MeV; measured Eγ, Iγ, Ed, Id, dγ-, dγγ-coin, γd(θ), σ. 155Gd; deduced levels, J, π, Nilsson configurations, L transfers, C2jl expansion coefficients, occupancies V2. DWBA analysis of σ(θ) data.

doi: 10.1103/PhysRevC.81.064316
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2009BE42      Phys.Rev. C 80, 057303 (2009)

Z.Berant, E.Oster, R.J.Casperson, A.Wolf, V.Werner, A.Heinz, R.F.Casten, G.Gurdal, E.A.McCutchan, D.S.Brenner, J.R.Terry, R.Winkler, E.Williams, J.Qian, A.Schmidt, M.K.Smith, T.Ahn, C.W.Beausang, P.H.Regan, T.Ross, M.Bunce, B.Darakchieva, D.A.Meyer, J.LeBlanc, K.Dudziak, C.Bauer, G.Henning

g factor of the 2+1 state of 172Hf

NUCLEAR MOMENTS 172Hf; measured g factor of first 2+ state using integral perturbed angular correlation method. Comparisons with g factors of neighboring even-even Hf nuclei and with predictions of several nuclear models including interacting boson approximation (IBA-2).

RADIOACTIVITY 172Ta(EC), (β+) [from 165Ho(12C, 5n), E=85 MeV]; measured Eγ, Iγ, γγ-coin, and cascade Iγ as a function of angle and magnetic field.

doi: 10.1103/PhysRevC.80.057303
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