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NSR database version of May 23, 2024.

Search: Author = F.Pogliano

Found 6 matches.

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2024SP04      Phys.Rev.Lett. 132, 202701 (2024)

A.Spyrou, D.Mucher, P.A.Denissenkov, F.Herwig, E.C.Good, G.Balk, H.C.Berg, D.L.Bleuel, J.A.Clark, C.Dembski, P.A.DeYoung, B.Greaves, M.Guttormsen, C.Harris, A.C.Larsen, S.N.Liddick, S.Lyons, M.Markova, M.J.Mogannam, S.Nikas, J.Owens-Fryar, A.Palmisano-Kyle, G.Perdikakis, F.Pogliano, M.Quintieri, A.L.Richard, D.Santiago-Gonzalez, G.Savard, M.K.Smith, A.Sweet, A.Tsantiri, M.Wiedeking

First Study of the 139Ba(n, γ)140Ba Reaction to Constrain the Conditions for the Astrophysical i Process

RADIOACTIVITY 140Cs(β-); measured decay products, Eγ, Iγ; deduced γ-ray energies, γ-ray strength functions, nuclear level density, astrophysical reaction rates. Comparison with TALYS calculations. β-Oslo method, the CARIBU facility at Argonne National Laboratory.

doi: 10.1103/PhysRevLett.132.202701
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2023LA08      Phys.Rev. C 108, 025804 (2023)

A.C.Larsen, G.M.Tveten, T.Renstrom, H.Utsunomiya, E.Algin, T.Ari-izumi, K.O.Ay, F.L.Bello Garrote, L.Crespo Campo, F.Furmyr, S.Goriely, A.Gorgen, M.Guttormsen, V.W.Ingeberg, B.V.Kheswa, I.K.B.Kullmann, T.Laplace, E.Lima, M.Markova, J.E.Midtbo, S.Miyamoto, A.H.Mjos, V.Modamio, M.Ozgur, F.Pogliano, S.Riemer-Sorensen, E.Sahin, S.Shen, S.Siem, A.Spyrou, M.Wiedeking

New experimental constraint on the 185W(n, γ)186W cross section

NUCLEAR REACTIONS 182,183,184W(γ, n), E=6.5-13 MeV; measured In, En; deduced σ(E), γ-ray strength function (GSF). 186W(α, α'γ), E=30 MeV; measured Eα, Iα, Eγ, Iγ, αγ-coin; deduced nuclear level density (NLD), γ-ray strength function (GSF). 185W(n, γ), T=0.5-1.1 GK; calculated Maxwellian averaged σ(E) (MACS), reaction rate (stellar reactivity), compared with experimental results, and recommended σ in compilations by Bao et al. Comparison to other experimental data, TALYS calculations and KADONIS-1.0 data. Photoneutron reactions were measured with quasi-monochromatic photon beam at NewSubaru synchrotron radiation facility using 4π detector consisting of 20 3He proportional counters. Experiment on inelastic α-scattering was performed at the Oslo Cyclotron Laboratory (OCL) using CACTUS NaI(Tl) scintillator γ-ray detector array, the Silicon Ring (SiRi) detector array and beam from MC-35 Scanditronix cyclotron.

doi: 10.1103/PhysRevC.108.025804
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2023PO02      Phys.Rev. C 107, 034605 (2023)

F.Pogliano, F.L.Bello Garrote, A.C.Larsen, H.C.Berg, D.Gjestvang, A.Gorgen, M.Guttormsen, V.W.Ingeberg, T.W.Johansen, K.L.Malatji, E.F.Matthews, M.Markova, J.E.Midtbo, V.Modamio, L.G.Pedersen, E.Sahin, S.Siem, T.G.Tornyi, A.S.Voyles

Observation of a candidate for the M1 scissors resonance in odd-odd 166Ho

NUCLEAR REACTIONS 163Dy(α, pγ), E=26 MeV; measured Eγ, Iγ, Ep, Ip, Eα, Iα, pγ-coin, pαγ-coin. 166Ho; deduced nuclear level density (NLD), gamma strength function (GSF), resonance components of the GSF (Giant Dipole Re sonance, Pigmy Dipole Resonance, M1 scissors resonance), B(M1), parameters of s cissor resonance. Oslo method type of analysis. Systematics of scissor resonances is Ho, Sm, Dy, Er isotopes. Comparison to TALYS 1.95 calculations and other experimental data. Oslo Scintillator Array (OSCAR) of 30 cylindrical LaBr3:Ce detectors and silicon ring (SiRi) consisting of 8 silicon-telescope modules at the Oslo Cyclotron Laboratory (OCL).

doi: 10.1103/PhysRevC.107.034605
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2023PO08      Phys.Rev. C 107, 064614 (2023)

F.Pogliano, A.C.Larsen, S.Goriely, L.Siess, M.Markova, A.Gorgen, J.Heines, V.W.Ingeberg, R.G.Kjus, J.E.L.Larsson, K.C.W.Li, E.M.Martinsen, G.J.Owens-Fryar, L.G.Pedersen, S.Siem, G.S.Torvund, A.Tsantiri

Experimentally constrained 165, 166Ho(n, γ) rates and implications for the s process

NUCLEAR REACTIONS 164Dy(α, pγ)167Ho, E=26 MeV; measured Ep, Ip, Eγ, Iγ, pγ-coin. 167Ho; deduced nuclear level density (NLD) and γ-ray strength function, resonance components of the GSF (Giant Dipole Resonance, Pigmy Dipole Resonance, M1 scissors resonance), upward scissor resonance strength. 165,166Ho(n, γ), E=0.001-10 MeV; calculated σ(E) using obtained NLD and GSF (for 167Ho from present work, for 166Ho - from 2023PO02), Maxwellian-averaged σ(E) MACS (kT<105 keV). Oslo method type of analysis. Comparison with other experimental data and TALYS calculations. Comparison of obtained MACS with JINA REACLIB, BRUSLIB and KADONIS data. AGB nucleosynthesis predictions with STARERVOL code using obtained MACS. Oslo SCintillator ARray (OSCAR) and the Silicon Ring (SiRi) detector arrays at MC-35 Scanditronix cyclotron.

doi: 10.1103/PhysRevC.107.064614
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2023PO10      Phys.Rev. C 108, 025807 (2023)

F.Pogliano, A.C.Larsen

Impact of level densities and γ-strength functions on r-process simulations

NUCLEAR REACTIONS Sb(n, γ), at T=1.0 GK; evaluated neutron capture rates for N=70-130 Sb nuclei for 48 theoretical TALYS models, and comparison with calculated values with the HFB-17 mass model. 128Xe(n, γ), T=0.5-1.5 GK; calculated neutron-capture rate predictions for different choices of γ-strength functions (GSF) while varying the nuclear level-density (NLD) models. A=30-180; Z=30-100; calculated differences between the highest and lowest predicted neutron-capture rate at T=1.0 GK for all the 48 combinations of NLD and GSF models using the FRDM-2012 and the HFB-17 mass models. A=80-250; calculated elemental abundances from the r-process for five trajectories after 1 Gy evolution using 48 neutron- capture rate models, and reaction rates in JINA REACLIB library.

doi: 10.1103/PhysRevC.108.025807
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2022PO05      Phys.Rev. C 106, 015804 (2022)

F.Pogliano, A.C.Larsen, F.L.Bello Garrote, M.M.Bjoroen, T.K.Eriksen, D.Gjestvang, A.Gorgen, M.Guttormsen, K.C.W.Li, M.Markova, E.F.Matthews, W.Paulsen, L.G.Pedersen, S.Siem, T.Storebakken, T.G.Tornyi, J.E.Vevik

Indirect measurement of the (n, γ) 127Sb cross section

NUCLEAR REACTIONS 124Sn(α, pγ), E=24 MeV; measured Eγ, Iγ, Ep, Ip, pγ-coin. 127Sb; deduced gamma strength function (GSF), nuclear level densities (NLD). Oslo method analysis. 126Sb(n, γ), E ∼ 30 keV; deduced Maxwellian-averaged σ using obtained GSF and NLD. Comparison to other experimental data and TALYS calculations. MACS for 126Sb(n, γ) is compared with evaluated values from JINA REACLIB rates, TENDL-19, BRUSLIB, ENDF/B-VIII.0 and TALYS predictions . Oslo SCintillator ARray (OSCAR) and the Silicon Ring (SiRi) detector arrays at MC-35 Scanditronix cyclotron (OCL).

doi: 10.1103/PhysRevC.106.015804
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