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NSR database version of April 27, 2024.

Search: Author = J.A.Silano

Found 11 matches.

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2023JO08      Phys.Rev. C 108, 024315 (2023)

S.R.Johnson, R.V.F.Janssens, U.Friman-Gayer, B.A.Brown, B.P.Crider, S.W.Finch, Krishichayan, D.R.Little, S.Mukhopadhyay, E.E.Peters, A.P.D.Ramirez, J.A.Silano, A.P.Tonchev, W.Tornow, S.W.Yates

Testing shell-model interactions at high excitation energy and low spin: Nuclear resonance fluorescence in ⁷⁴Ge

NUCLEAR REACTIONS ⁷⁴Ge(polarized γ, γ'), E=3.1-5.44 MeV; measured Eγ, Iγ, γ(θ); deduced integrated exclusive scattering σ(E). ⁷⁴Ge; deduced levels, J, π, branching ratios, transition intensities. Comparison to large-scale shell-model calculations with jj44b and JUN45 effective interactions. γ³-setup consisting of 6 HPGe detectors. Quasi-monoenergetic linearly polarized photon beams produced via Compton backscattering and provided by the High Intensity Gamma-Ray Source at TUNL.

doi: 10.1103/PhysRevC.108.024315
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Data from this article have been entered in the XUNDL database. For more information, click here.

2023MA16      Appl.Radiat.Isot. 195, 110742 (2023)

A.M.Marenco, G.Rusev, E.M.Bond, T.A.Bredeweg, S.W.Finch, J.R.Garcia, M.E.Gooden, Krishichayan, R.C.Malone, W.A.Moody, A.P.D.Ramirez, J.A.Silano, A.P.Tonchev, W.Tornow

Cross section for inelastic neutron scattering from ¹⁹³Ir at 6 MeV

NUCLEAR REACTIONS ¹⁹³Ir, Ir(n, n')^193mIr, E=6 MeV; measured reaction products, X-rays; deduced σ. Comparison with available data, ENDF/B-VIII.0 library. The tandem lab of TUNL.

doi: 10.1016/j.apradiso.2023.110742
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2023RA05      Phys.Rev. C 107, 054608 (2023)

A.P.D.Ramirez, J.A.Silano, R.C.Malone, M.A.Stoyer, A.P.Tonchev, M.E.Gooden, J.B.Wilhelmy, S.W.Finch, C.R.Howell, Krishichayan, W.Tornow

Fission product yields from the ²³⁸U(n, f) reaction at E_n = 4.6 MeV

NUCLEAR REACTIONS ²³⁸U(n, F)^86mKr/⁸⁶Kr/⁸⁸Kr/⁸⁹Rb/⁹¹Sr/⁹²Sr/⁹⁴Y/⁹⁷Nb/¹⁰¹Mo/¹⁰⁴Tc/¹⁰⁵Ru/¹²⁹Sb/¹³¹Te/¹³¹Sb/¹³³I/¹³⁴Te/¹³⁴I/¹³⁵Xe/¹³⁸Xe/¹³⁸Cs/¹³⁹Ba/¹⁴¹Ba/¹⁴²Ba/¹⁴²La/¹⁴⁶Ce/¹⁴⁶Pr/¹⁴⁷Pr/⁸⁴As/⁸⁶Se/⁸⁶Br/⁸⁷Br/⁸⁸Br/⁸⁹Kr/⁹⁰Kr/⁹¹Kr/⁹¹Rb/⁹²Kr/⁹³Kr/⁹³Rb/⁹³Sr/⁹⁴Rb/⁹⁴Sr/⁹⁵Sr/⁹⁶Sr/^96mY/⁹⁶Y/^97mY/⁹⁸Sr/^98mY/⁹⁹Zr/⁹⁹Nb/¹⁰⁰Y/¹⁰⁰Zr/¹⁰¹Zr/¹⁰¹Nb/¹⁰²Zr/¹⁰³Tc/¹⁰⁶Tc/¹³⁰Sn/¹³²Sn/¹³³Sb/^134mSb/¹³⁵Te/¹³⁶Te/^136mI/¹³⁷Xe/¹³⁸I/¹³⁹Xe/¹⁴⁰Xe/¹⁴⁰Cs/¹⁴¹Xe/¹⁴²Cs/¹⁴²Ba/¹⁴³Cs/¹⁴³Ba/¹⁴⁴La/¹⁴⁵Ce/¹⁴⁸La, E=4.6 MeV; measured neutron time-of-flight, Eγ, Iγ; deduced cumulative fission product yields. Comparison to experimental and evaluated data from ENDF/B-VIII.0 and JEFF-3.3 libraries and with theoretical models using the GEF and FREYA codes. Cyclic activation technique using the RApid Belt-driven Irradiated Target Transfer System (RABITTS) at the 10 MV tandem Van de Graaff accelerator (TUNL).

doi: 10.1103/PhysRevC.107.054608
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2023SC05      Phys.Rev. C 107, 044312 (2023)

N.Schunck, M.Verriere, G.Potel Aguilar, R.C.Malone, J.A.Silano, A.P.D.Ramirez, A.P.Tonchev

Microscopic calculation of fission product yields for odd-mass nuclei

NUCLEAR REACTIONS ^236,238U(n, F), E=2.2-7.2 MeV; calculated mass distribution of the light fission fragment before prompt emission, fission fragment mass distribution after neutron emission, ratio of neutron over proton numbers in the fission fragments, axial quadrupole and octupole deformation in the fission fragments, probability to populate a given spin projection. Hartree-Fock-Bogoliubov theory with Skyrme energy functionals combined with FREYA calculations. Comparison to available experimental data, GEF-2021/1.1 calculations and ENDF/B-VIII.0, JEFF-3.3, and JENDL-5 evaluations.

NUCLEAR STRUCTURE ^237,239U; calculated levels, J, π, spectrum of quasi-bound states for each spin projection, potential energy curves in as a function of the axial quadrupole moment. Generator coordinate method with Gaussian overlap approximation.

doi: 10.1103/PhysRevC.107.044312
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2022LI18      Phys.Rev.Lett. 128, 132502 (2022)

X.Li, M.W.Ahmed, A.Banu, C.Bartram, B.Crowe, E.J.Downie, M.Emamian, G.Feldman, H.Gao, D.Godagama, H.W.Griesshammer, C.R.Howell, H.J.Karwowski, D.P.Kendellen, M.A.Kovash, K.K.H.Leung, D.M.Markoff, J.A.McGovern, S.Mikhailov, R.E.Pywell, M.H.Sikora, J.A.Silano, R.S.Sosa, M.C.Spraker, G.Swift, P.Wallace, H.R.Weller, C.S.Whisnant, Y.K.Wu, Z.W.Zhao

Proton Compton Scattering from Linearly Polarized Gamma Rays

NUCLEAR REACTIONS ¹H(polarized γ, γ'), E=83.4 MeV; measured reaction products, Eγ, Iγ; deduced σ(θ), electromagnetic dipole polarizabilities of the proton. The High Intensity Gamma-Ray Source facility at the Triangle Universities Nuclear Laboratory.

doi: 10.1103/PhysRevLett.128.132502
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2021HA10      J.Radioanal.Nucl.Chem. 327, 1113 (2021)

T.A.Hain, S.J.Pendleton, J.A.Silano, A.Banu

High-precision measurements of half-lives for ⁶⁹Ge, ⁷³Se, ⁸³Sr, ^85mSr, and ⁶³Zn radionuclides relevant to the astrophysical p-process via photoactivation at the Madison Accelerator Laboratory

RADIOACTIVITY ⁶⁹Ge, ⁷³Se, ⁸³Sr, ⁶³Zn(EC), (β⁺), ⁸⁵Sr(IT), (EC) [from ⁷⁰Ge, ⁷⁴Se, ⁸⁴Sr, ⁸⁶Sr, ⁶⁴Zn(γ, n), E<15 MeV]; measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities, decay curves, T_1/2 and uncertainties. Comparison with available data.

doi: 10.1007/s10967-020-07589-5
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Data from this article have been entered in the XUNDL database. For more information, click here.

2020LI10      Phys.Rev. C 101, 034618 (2020)

X.Li, M.W.Ahmed, A.Banu, C.Bartram, B.Crowe, E.J.Downie, M.Emamian, G.Feldman, H.Gao, D.Godagama, H.W.Griesshammer, C.R.Howell, H.J.Karwowski, D.P.Kendellen, M.A.Kovash, K.K.H.Leung, D.Markoff, S.Mikhailov, R.E.Pywell, M.H.Sikora, J.A.Silano, R.S.Sosa, M.C.Spraker, G.Swift, P.Wallace, H.R.Weller, C.S.Whisnant, Y.K.Wu, Z.W.Zhao

Compton scattering from ⁴He at the TUNL HIγS facility

NUCLEAR REACTIONS ⁴He(polarized γ, γ), E=81.3 MeV, 100% circularly and linearly polarized γ-ray beam via Compton backscattering from HiγS at TUNL; measured Compton scattered photons at different angles, time-of-flight spectra using an array of large NaI(Tl) detectors; deduced differential σ(θ). Comparison with previous experimental data from Lund at Eγ=87 MeV.

doi: 10.1103/PhysRevC.101.034618
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0259.

2019BA10      Phys.Rev. C 99, 025802 (2019)

A.Banu, E.G.Meekins, J.A.Silano, H.J.Karwowski, S.Goriely

Photoneutron reaction cross section measurements on ⁹⁴Mo and ⁹⁰Zr relevant to the p-process nucleosynthesis

NUCLEAR REACTIONS ⁹⁰Zr(γ, n), E=12-13.5 MeV; ⁹⁴Mo(γ, n), E=9.5-13.5 MeV; measured Eγ, Iγ, E(n), I(n), and σ(E) using quasi-monochromatic, circularly polarized (aka unpolarized) high-intensity photon beam from HIγS-TUNL facility, ³He proportional counter array INVS for neutron detection, HPGe detector and thin plastic scintillator for γ detection; deduced γ-ray strength functions (γSF), and stellar reaction rates. Comparison with previous experimental results, and with Hauser-Feshbach statistical model calculations with D1M+QRPA E1 and M1 strengths, and with the GLO model. Relevance to p-process nucleosynthesis and impact on the photoneutron stellar reaction rates.

doi: 10.1103/PhysRevC.99.025802
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0248.

2018SI29      Phys.Rev. C 98, 054609 (2018)

J.A.Silano, H.J.Karwowski

Near-barrier photofission in ²³²Th and ²³⁸U

NUCLEAR REACTIONS ²³²Th, ²³⁸U, Pb, ²H(polarized γ, F), E=4.3-6.0 MeV; measured neutron and γ spectra, photofission neutron angular distributions and polarization asymmetries, photofission neutron multiplicities, and photofission σ(E) using ³He proportional counters for neutron detection at HIγS-TUNL facility. Comparison with previous experimental σ(E) data, ENDF/B-VIII.0 evaluation and several model predictions.

doi: 10.1103/PhysRevC.98.054609
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0239.

2017SI26      Phys.Rev. C 96, 055209 (2017)

M.H.Sikora, M.W.Ahmed, A.Banu, C.Bartram, B.Crowe, E.J.Downie, G.Feldman, H.Gao, H.W.Griesshammer, H.Hao, C.R.Howell, H.J.Karwowski, D.P.Kendellen, M.A.Kovash, X.Li, D.M.Markoff, S.Mikhailov, V.Popov, R.E.Pywell, J.A.Silano, M.C.Spraker, P.Wallace, H.R.Weller, C.S.Whisnant, Y.K.Wu, W.Xiong, X.Yan, Z.W.Zhao

Compton scattering from ⁴He at 61 MeV

NUCLEAR REACTIONS ⁴He(γ, γ'), E=61 MeV; measured Eγ, Iγ, Compton scattering differential σ(θ) using NaI(Tl) detectors and liquid ⁴He target at HIγS facility at TUNL. Data interpreted using phenomenological model sensitive to the dipole isoscalar electromagnetic polarizabilities of the nucleon. Comparison with previous experimental data. Benchmarks for future calculations from effective field theories and lattice quantum chromodynamics.

doi: 10.1103/PhysRevC.96.055209
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0232.

2014AN13      Phys.Rev. C 90, 054315 (2014)

C.T.Angell, R.Hajima, T.Hayakawa, T.Shizuma, H.J.Karwowski, J.Silano

Validating resonance properties using nuclear resonance fluorescence

NUCLEAR REACTIONS ²⁷Al(polarized γ, γ'), E=2.6-3.2 MeV; measured Eγ, Iγ, integrated cross section for the 3.004-MeV level in ²⁷Al at HIγS-TUNL facility; ²⁷Al; deduced level spin, validation procedure of spectroscopic properties of a resonance.

doi: 10.1103/PhysRevC.90.054315
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0198. 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 J.A.Silano: , J.A.SILANO