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NSR database version of April 27, 2024.

Search: Author = P.Humby

Found 9 matches.

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2018CO12      Phys.Rev. C 98, 044618 (2018)

N.Cooper, C.W.Beausang, P.Humby, A.Simon, J.T.Burke, R.O.Hughes, S.Ota, C.Reingold, A.Saastamoinen, E.Wilson

Entry-level spin distributions and relative γ-neutron branching ratios of samarium isotopes populated by the (p, t) reaction

NUCLEAR REACTIONS ^150,152,154Sm(p, t), E=25 MeV; measured Eγ, Iγ, γ(θ), E(t), I(t), angular distribution of tritons, and tγ-coin using the Hyperion detector array consisting of STARS array of Si detectors for triton detection and 13 HPGe clovers for γ detection using enriched targets at the K150 cyclotron facility of Texas A and M university. ^148,150,152Sm; deduced relative intensities of γ rays from low-lying levels, entry-level spin distributions, and relative average branching ratios for γ-rays above S(n). Comparison with calculated simulated γ spectra from natural-parity levels using DICEBOX and MCγ codes, and probability densities of entry level spins by modeling (p, t) reaction using PTCRUISER code.

doi: 10.1103/PhysRevC.98.044618
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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.

2017DO01      Phys.Lett. B 766, 334 (2017)

D.T.Doherty, J.M.Allmond, R.V.F.Janssens, W.Korten, S.Zhu, M.Zielinska, D.C.Radford, A.D.Ayangeakaa, B.Bucher, J.C.Batchelder, C.W.Beausang, C.Campbell, M.P.Carpenter, D.Cline, H.L.Crawford, H.M.David, J.P.Delaroche, C.Dickerson, P.Fallon, A.Galindo-Uribarri, F.G.Kondev, J.L.Harker, A.B.Hayes, M.Hendricks, P.Humby, M.Girod, C.J.Gross, M.Klintefjord, K.Kolos, G.J.Lane, T.Lauritsen, J.Libert, A.O.Macchiavelli, P.J.Napiorkowski, E.Padilla-Rodal, R.C.Pardo, W.Reviol, D.G.Sarantites, G.Savard, D.Seweryniak, J.Srebrny, R.Varner, R.Vondrasek, A.Wiens, E.Wilson, J.L.Wood, C.Y.Wu

Triaxiality near the ¹¹⁰Ru ground state from Coulomb excitation

NUCLEAR REACTIONS ²⁰⁸Pb(¹¹⁰Ru, ¹¹⁰Ru'), E=430 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energy spectrum, B(E2) using GOSIA fit of the experimental data, level scheme, J, π, triaxial deformation. Comparison with available data.

doi: 10.1016/j.physletb.2017.01.031
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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.

2016LO04      Phys.Lett. B 756, 72 (2016)

B.Loher, D.Savran, T.Aumann, J.Beller, M.Bhike, N.Cooper, V.Derya, M.Duchene, J.Endres, A.Hennig, P.Humby, J.Isaak, J.H.Kelley, M.Knorzer, N.Pietralla, V.Yu.Ponomarev, C.Romig, M.Scheck, H.Scheit, J.Silva, A.P.Tonchev, W.Tornow, F.Wamers, H.Weller, V.Werner, A.Zilges

The decay pattern of the Pygmy Dipole Resonance of ¹⁴⁰Ce

NUCLEAR REACTIONS ¹⁴⁰Ce(γ, γ'), (γ, γ), E=6.5 MeV; measured reaction products, Eγ, Iγ; deduced elastic scattering σ, average branching ratio to excited states for ¹⁴⁰Ce, Pygmy Dipole Resonance (PDR) couple to the ground state as well as to low-lying excited states, PDR mixing. Comparison with nuclear model calculations.

doi: 10.1016/j.physletb.2016.02.042
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0215.

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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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 J^π = 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.

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.

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.