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NSR database version of April 27, 2024.

Search: Author = A.Belley

Found 3 matches.

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2022YA19      Phys.Rev. C 106, 014315 (2022)

J.M.Yao, I.Ginnett, A.Belley, T.Miyagi, R.Wirth, S.Bogner, J.Engel, H.Hergert, J.D.Holt, S.R.Stroberg

Ab initio studies of the double-Gamow-Teller transition and its correlation with neutrinoless double-β decay

RADIOACTIVITY ^6,8He, ¹⁰Be, ¹⁴C, ^18,22O, ²²Ne, ^26,28Mg, ³⁰Si, ³⁴S, ³⁸Ar, ^42,44,48,56Ca, ⁵⁰Cr, ^46,52Ti(2β^-); A=6-76(2β^-); calculated nuclear matrix elements (NMEs) for ground-state-to-ground-state double Gamow-Teller transitions (DGT) and Gamow Teller (GT) 0νββ decay, transition densities of parent nuclei, correlation between the transition densities and NMEs of DGT transitions. Ab initio many body methods by importance-truncated no-core shell model (IT-NCSM) with GXPF1A interaction, valence-space in-medium similarity renormalization group method (VSIMSRG) with EM1.8/2.0 interaction, and in-medium generator coordinate method (IM-GCM). ⁶He, ¹⁰Be, ¹⁴C, ¹⁸O, ²²Ne, ²⁶Mg, ³⁰Si, ³⁴S, ³⁸Ar, ^42,44Ca, ⁴⁶Ti, ⁵⁰Cr; 2β^- decay mode forbidden for these nuclei due to negative Q values, however, on query, authors mentioned that these nuclei were included for NMEs for 0νββ decays as these involved the same decay operators that determine the allowed decay rates, thus helpful to benchmark many-body approaches for the nuclear matrix elements of neutrinoless double beta decay.

doi: 10.1103/PhysRevC.106.014315
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2021BE03      Phys.Rev.Lett. 126, 042502 (2021)

A.Belley, C.G.Payne, S.R.Stroberg, T.Miyagi, J.D.Holt

Ab Initio Neutrinoless Double-Beta Decay Matrix Elements for ⁴⁸Ca, ⁷⁶Ge, and ⁸²Se

RADIOACTIVITY ⁴⁸Ca, ⁷⁶Ge, ⁸²Se(2β^-); calculated basis-space converged neutrinoless ββ-decay nuclear matrix elements for the lightest candidates using ab initio in-medium similarity renormalization group to construct valence-space Hamiltonians and consistently transformed ββ-decay operators.

doi: 10.1103/PhysRevLett.126.042502
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2021YA03      Phys.Rev. C 103, 014315 (2021)

J.M.Yao, A.Belley, R.Wirth, T.Miyagi, C.G.Payne, S.R.Stroberg, H.Hergert, J.D.Holt

Ab initio benchmarks of neutrinoless double-β decay in light nuclei with a chiral Hamiltonian

RADIOACTIVITY ^6,8He, ¹⁰Be, ¹⁴C, ²²O(2β^-); calculated nuclear matrix elements (NMEs) for isospin-conserving and isospin-changing 0νββ decay modes. Valence-space in-medium similarity renormalization group (VS-IMSRG) and importance-truncated no-core shell model (IT-NCSM) calculations. Comparison with results of calculations using NCSM and coupled-cluster theory with singles and doubles plus leading-order triples excitations (CC-SDT1).

NUCLEAR STRUCTURE ^6,8He, ^6,8,10Be, ^10,14C, ^14,22O, ²²Ne; calculated energies per nucleon (E/A) using VS-IMSRG, in-medium generator coordinate (IM-GCM), and IT-NCSM calculations, and compared with those from the CC-SDT1 calculations.

doi: 10.1103/PhysRevC.103.014315
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