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NSR database version of April 27, 2024.

Search: Author = T.R.Whitehead

Found 7 matches.

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2023HE08      J.Phys.(London) G50, 060501 (2023)

C.Hebborn, F.M.Nunes, G.Potel, W.H.Dickhoff, J.W.Holt, M.C.Atkinson, R.B.Baker, C.Barbieri, G.Blanchon, M.Burrows, R.Capote, P.Danielewicz, M.Dupuis, C.Elster, J.E.Escher, L.Hlophe, A.Idini, H.Jayatissa, B.P.Kay, K.Kravvaris, J.J.Manfredi, A.Mercenne, B.Morillon, G.Perdikakis, C.D.Pruitt, G.H.Sargsyan, I.J.Thompson, M.Vorabbi, T.R.Whitehead

Optical potentials for the rare-isotope beam era

doi: 10.1088/1361-6471/acc348
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2023HE11      Phys.Rev. C 108, 014601 (2023)

C.Hebborn, T.R.Whitehead, A.E.Lovell, F.M.Nunes

Quantifying uncertainties due to optical potentials in one-neutron knockout reactions

NUCLEAR REACTIONS ⁹Be(¹¹Be, n)¹⁰Be, (¹²C, n)¹¹C, E=60 MeV/nucleon; calculated 1n-knockut σ with diffractive-breakup and stripping contributions. ⁹Be(¹⁰Be, ¹⁰Be), (¹¹C, ¹¹C), E=60 MeV/nucleon; calculated elastic σ(θ). Bayesian analysis of the reaction model, quantifying parametric uncertainties on the optical potentials, to obtain uncertainty intervals for knockout observables. Optical potentials obtained from many-body calculations with chiral force. Comparison to experimental data.

doi: 10.1103/PhysRevC.108.014601
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2022WH01      Phys.Rev. C 105, 054611 (2022)

T.R.Whitehead, T.Poxon-Pearson, F.M.Nunes, G.Potel

Prediction for (p, n) charge-exchange reactions with uncertainty quantification

NUCLEAR REACTIONS ¹⁴C, ⁴⁸Ca, ⁹⁰Zr(p, n), E=25, 35, 45 MeV; calculated σ(θ) to isobaric analog states, optical model parameters; deduced uncertainties using Bayesian analysis. Two-body framework using single-step DWBA with microscopic Whitehead-Lim-Holt (WLH) potential and Koning-Delaroche (KD) phenomenological global potential. Comparison to experimental data.

doi: 10.1103/PhysRevC.105.054611
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2021WH01      Phys.Rev.Lett. 127, 182502 (2021)

T.R.Whitehead, Y.Lim, J.W.Holt

Global Microscopic Description of Nucleon-Nucleus Scattering with Quantified Uncertainties

NUCLEAR REACTIONS ¹⁴N, ¹⁶O, ³⁴S, ⁵⁶Fe, ⁹⁰Zr, ¹²¹Sb, ¹³⁸Ba, ¹⁸²W, ²⁰⁸Pb(n, n), E<75 MeV; ¹⁶O, ²⁷Al, ⁴⁸Ti, ⁶⁰Ni, ⁸⁰Se, ¹²⁰Sn, ¹⁸²W, ¹⁹⁴Pt, ²⁰⁶Pb(p, p), E<135 MeV; analyzed available data; deduced s(θ), optical potentials from a set of five nuclear forces from chiral effective field theory for 1800 target nuclei.

doi: 10.1103/PhysRevLett.127.182502
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2020WH01      Phys.Rev. C 101, 064613 (2020)

T.R.Whitehead, Y.Lim, J.W.Holt

Neutron elastic scattering on calcium isotopes from chiral nuclear optical potentials

NUCLEAR STRUCTURE ^40,48Ca; calculated matter density distributions using mean-field theory with the Skyrme Skχ450 effective interaction constrained by chiral effective field theory.

NUCLEAR REACTIONS ^40,48Ca(n, n), E=3.2, 30, 85 MeV; calculated real, imaginary, and spin-orbit terms of the microscopic chiral optical potential. ⁴⁰Ca(n, n), E=3.2, 5.3, 6.52, 11.9, 16.9, 21.7, 25.5, 30, 40, 65, 85, 107.5, 155, 185 MeV; ⁴⁸Ca(n, n), E=7.97, 11.9, 16.9 MeV; calculated differential σ(E, θ). ⁴⁸Ca(polarized n, n), E=11.9, 16.9 MeV; calculated vector analyzing powers A_y(E, θ). Calculated used the chiral optical potential, and Koning-Delaroche phenomenological optical potential. ^40,48Ca(n, x), E=10-200 MeV; calculated total σ(E) using the chiral optical potential. Comparison with experimental data. Improved microscopic optical potential based on nuclear two- and three-body interactions from chiral effective field theory.

doi: 10.1103/PhysRevC.101.064613
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2019WH01      Phys.Rev. C 100, 014601 (2019)

T.R.Whitehead, Y.Lim, J.W.Holt

Proton elastic scattering on calcium isotopes from chiral nuclear optical potentials

NUCLEAR REACTIONS ⁴⁰Ca(p, p), E=2.35, 35, 100 MeV; calculated real, imaginary, and spin-orbit terms of the microscopic optical potential from chiral EFT, and from fits to the Koning-Delaroche (KD) form. ^40,42,44,48Ca; calculated nucleon density distributions in mean field theory using the Skyrme Skχ450 effective interaction. ⁴⁰Ca(p, p), E=2.35, 25, 35, 45, 55, 65, 80, 135, 160 MeV; ^42,44,48Ca(p, p), E=25, 35, 45 MeV; ^40,42,44,48Ca(p, X), E=20-50 MeV; calculated differential elastic σ(θ, E), and total reaction σ(E) using microscopic optical potentials calculated from chiral effective field theory, and from the chiral optical potential by the Koning-Delaroche (KD) phenomenological imaginary part, and using the reaction code TALYS. Comparison with experimental data.

doi: 10.1103/PhysRevC.100.014601
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2018HO05      Phys.Rev. C 97, 054325 (2018)

J.W.Holt, N.Kaiser, T.R.Whitehead

Tensor Fermi liquid parameters in nuclear matter from chiral effective field theory

doi: 10.1103/PhysRevC.97.054325
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