NSR Query Results

Output year order : Descending
Format : Normal

NSR database version of April 26, 2024.

Search: Author = D.L.Fang

Found 23 matches.

Back to query form

2024FA02      Chin.Phys.C 48, 034101 (2024)

D.-L.Fang

What can we learn from recent 2νββ experiments?

RADIOACTIVITY ⁸²Se, ¹⁰⁰Mo, ¹³⁶Xe(2β^-); calculated nuclear matrix elements with the quasi-particle random phase approximation (QRPA) approach; deduced Gamow-Teller transition strength under a unique quenched axial-vector coupling constant g_A, flipping the sign for the decay strength causes the spectra to go beyond the so-called high-lying state dominance hypothesis.

doi: 10.1088/1674-1137/ad181b
Citations: PlumX Metrics

2023FA03      Phys.Rev. C 107, 015501 (2023)

D.-L.Fang, A.Faessler

0νββ decay to the first 2⁺ state with a two-nucleon mechanism for a L-R symmetric model

RADIOACTIVITY ⁷⁶Ge, ⁸²Se, ⁹⁶Zr, ¹⁰⁰Mo, ¹¹⁶Cd, ^128,130Te, ¹³⁶Xe(2β^-); calculated phase space factors, nuclear matrix elements for 0νββ-decay to the first 2⁺ state of daughter nuclei. L-R symmetric model.

doi: 10.1103/PhysRevC.107.015501
Citations: PlumX Metrics

2023GU03      Phys.Rev. C 107, 014318 (2023)

L.Guo, W.L.Lv, Y.F.Niu, D.L.Fang, B.S.Gao, K.A.Li, X.D.Tang

Spin-isospin excitations in the direction of β⁺ decay for ⁸⁰Zn and ¹²⁶Ru at finite temperature

RADIOACTIVITY ⁸⁰Zn, ¹²⁶Ru(β⁺); calculated Gamow-Teller (GT⁺) strength distribution with respect to the ground state of daughter nuclei, spin-dipole (SD) transition strength distributions, sum-rule values of GT and SD transitions. Self consistent finite-temperature proton-neutron relativistic quasiparticle RPA (FT-PNRQRPA) and finite-temperature proton-neutron relativistic RPA (FT-PNRRPA) model.

doi: 10.1103/PhysRevC.107.014318
Citations: PlumX Metrics

2023LV01      Phys.Rev. C 108, L051304 (2023)

W.-L.Lv, Y.-F.Niu, D.-L.Fang, J.-M.Yao, C.-L.Bai, J.Meng

0νββ-decay nuclear matrix elements in self-consistent Skyrme quasiparticle random-phase approximation: Uncertainty from pairing interaction

doi: 10.1103/PhysRevC.108.L051304
Citations: PlumX Metrics

2022BA38      Chin.Phys.C 46, 114104 (2022)

C.L.Bai, D.L.Fang, H.Q.Zhang, C.L.Bai, D.L.Fang, H.Q.Zhang

Roles of tensor and isoscalar pairing interactions in β-Decay calculations for possible r-process waiting point nuclei with N ∼ 82 and 126

RADIOACTIVITY ^{120,122,124,126,128,130,132}Cd(β^-); calculated T_1/2 with the self-consistent Hartree-Fock-Bogoliubov (HFB) theory with the proton-neutron quasi-particle random phase approximation (pnQRPA) based on the Skyrme force. Comparison with available data.

doi: 10.1088/1674-1137/ac80ee
Citations: PlumX Metrics

2022LV05      Phys.Rev. C 105, 044331 (2022)

W.L.Lv, Y.F.Niu, D.L.Fang, C.L.Bai

Single-state or low-lying-states dominance mechanism of 2νββ-decay nuclear matrix elements

RADIOACTIVITY ⁴⁸Ca, ⁷⁶Ge, ⁸²Se, ⁹⁶Zr, ¹⁰⁰Mo, ¹¹⁶Cd, ^128,130Te, ¹³⁶Xe, ¹⁵⁰Nd, ²³⁸U(2β^-); calculated matrix elements, isoscalar pairing strength parameter, Gamow-teller transition amplitudes. Spherical Skyrme HFB + QRPA model. Single-state dominance (SSD) and low-lying-states dominance (LLD) hypothesis. Comparison to experimental values.

doi: 10.1103/PhysRevC.105.044331
Citations: PlumX Metrics

2021FA01      Phys.Lett. B 813, 136067 (2021)

D.-L.Fang, Y.-F.Li, D.Zhang

Ab initio calculations of reactor antineutrino fluxes with exact lepton wave functions

NUCLEAR REACTIONS ^235,238U, ^239,241Pu(n, F), E thermal; calculated the isotopic reactor antineutrino fluxes with the exact the radial lepton wave functions, assuming all the decay branches are allowed GT transitions within a new ab initio approach.

doi: 10.1016/j.physletb.2021.136067
Citations: PlumX Metrics

2021FA07      Phys.Rev. C 103, 045501 (2021)

D.-L.Fang, A.Faessler

Nuclear matrix elements for the 0νββ(0⁺ → 2 decay of ⁷⁶Ge within the two-nucleon mechanism

RADIOACTIVITY ⁷⁶Ge(2β^-); calculated nuclear matrix elements (NMEs) for 0νββ decay to the first 2+ state of ⁷⁶Se, with estimated uncertainties using various approximations and parameters such as dependence of the NMEs on the model space for different multipoles, NMEs for a Coulomb-type neutrino potential, NME dependence on the short-range correlations, and NME dependence on particle-particle interaction strengths. Nuclear many body calculation using isospin symmetry restored quasiparticle random phase approximation (QRPA) method with the charge-dependent-Bonn realistic force. Comparison with results of previous calculations based on projected Hartree-Fock-Bogolyubov method.

doi: 10.1103/PhysRevC.103.045501
Citations: PlumX Metrics

2020FA05      Chin.Phys.C 44, 084104 (2020)

D.-L.Fang, A.Faessler

2νββ-decay to first 2⁺states with partial isospin symmetry restoration from spherical QRPA calculations

RADIOACTIVITY ⁷⁶Ge, ⁹⁶Zr, ¹¹⁶Cd, ^128,130Te, ⁸²Se, ¹⁰⁰Mo, ¹³⁶Xe(2β^-); calculated nuclear matrix elements, phase space factors, T_1/2.

doi: 10.1088/1674-1137/44/8/084104
Citations: PlumX Metrics

2020RE12      Phys.Lett. B 809, 135702 (2020), Erratum Phys.Lett. B 820, 136532 (2021)

B.M.Rebeiro, S.Triambak, P.E.Garrett, B.A.Brown, G.C.Ball, R.Lindsay, P.Adsley, V.Bildstein, C.Burbadge, A.Diaz Varela, T.Faestermann, D.L.Fang, R.Hertenberger, M.Horoi, B.Jigmeddorj, M.Kamil, K.G.Leach, P.Z.Mabika, J.C.Nzobadila Ondze, J.N.Orce, H.-F.Wirth

Benchmarking ¹³⁶Xe neutrinoless ββ decay matrix element calculations with the ¹³⁸Ba(p, t) reaction

NUCLEAR REACTIONS ¹³⁸Ba(p, t), (p, p), E=23 MeV; measured reaction products, Ep, Ip; deduced σ(θ), neutrinoless ββ decay matrix elements.

doi: 10.1016/j.physletb.2020.135702
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2532. Data from this article have been entered in the XUNDL database. For more information, click here.

2018FA04      Phys.Rev. C 97, 045503 (2018)

D.-L.Fang, A.Faessler, F.Simkovic

0νββ decay nuclear matrix element for light and heavy neutrino mass mechanisms from deformed quasiparticle random-phase approximation calculations for ⁷⁶Ge, ⁸²Se, ¹³⁰Te, ¹³⁶Xe, and ¹⁵⁰Nd with isospin restoration

NUCLEAR STRUCTURE ⁷⁶Ge, ⁷⁶Se, ⁸²Se, ⁸²Kr, ¹³⁰Te, ¹³⁰Xe, ¹³⁶Xe, ¹³⁶Ba, ¹⁵⁰Nd, ¹⁵⁰Sm; calculated quadrupole deformation parameters, pairing strengths, BCS overlap, particle-particle interaction strengths for the corresponding parent/daughter pair in double beta decay using deformed Wood-Saxon potential with Coulomb corrections.

RADIOACTIVITY ⁷⁶Ge, ⁸²Se, ¹³⁰Te, ¹³⁶Xe, ¹⁵⁰Nd(2β^-); calculated nuclear matrix elements (NME) for 0νββ decay mode for both light and heavy neutrino mechanisms by deformed quasiparticle random-phase approach using AV18 and CD-Bonn potentials with and without short range correlations (SRC). Comparison with other theoretical calculations. ¹⁵⁰Nd; detailed decomposition of NMEs for ¹⁵⁰Nd decay into various intermediate channels, and for different model spaces.

doi: 10.1103/PhysRevC.97.045503
Citations: PlumX Metrics

2016DO05      Phys.Rev. C 93, 064317 (2016)

A.C.Dombos, D.-L.Fang, A.Spyrou, S.J.Quinn, A.Simon, B.A.Brown, K.Cooper, A.E.Gehring, S.N.Liddick, D.J.Morrissey, F.Naqvi, C.S.Sumithrarachchi, R.G.T.Zegers

Total absorption spectroscopy of the β decay of ⁷⁶Ga

RADIOACTIVITY ⁷⁶Ga(β^-)[from ⁹Be(⁷⁶Ge³²⁺, X), E=130 MeV/nucleon and separated by A1900 fragment separator at NSCL-MSU]; measured Eγ, Iγ, total absorption gamma-ray (TAS) spectrum using a segmented NaI(Tl)(SuN) detector, Eβ, Iβ by a silicon surface barrier, βγ-coin, half-life of ⁷⁶Ga decay; deduced Iβ feedings and compared to the evaluated data in the ENSDF database, β strength functions and B(GT). Comparison with shell-model calculations using jj44b and JUN45 interactions. Relevance to studies of neutrinoless double β-decay of ⁷⁶Ge.

doi: 10.1103/PhysRevC.93.064317
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2016FA03      Phys.Rev. C 93, 034306 (2016)

D.-L.Fang

Effect of the Pauli principle on the deformed quasiparticle random-phase approximation calculations and its consequence for β-decay calculations of deformed even-even nuclei

RADIOACTIVITY ^98,100Kr, ^{98,100,102,104,106}Sr, ^{102,104,106,108,110,112}Zr, ^{108,110,112,114,116}Mo, ^{150,152,154,156,158,160,162,164,166,168,170,172,174}Ce, ^{152,154,156,158,160,162,164,166,168,170,172,174,176}Nd, ^{158,160,162,164,166,168,170,172,174,176,178}Sm, ^{164,166,168,170,172,174,176,178,180}Gd(β^-); calculated half-lives, B(GT) for ^100,102Sr, ¹¹⁰Zr using Pauli exclusion principle (PEP) in quasiparticle random phase approximation (QRPA) and renormalized quasiparticle random phase approximation (nQRPA)calculations by replacing traditional quasiboson approximation (QBA) for the deformed systems. Comparison with available experimental results.

doi: 10.1103/PhysRevC.93.034306
Citations: PlumX Metrics

2016NI07      Phys.Lett. B 756, 273 (2016)

N.Nishimura, Z.Podolyak, D.-L.Fang, T.Suzuki

Impact of the first-forbidden β decay on the production of A ∼ 195 r-process peak

NUCLEAR STRUCTURE A=175-210; calculated isotopic abundances, β-decay rates; deduced effects of first-forbidden transitions in β-decays on the production of the r-process A ∼ 195 peak. Comparison with available data.

doi: 10.1016/j.physletb.2016.03.025
Citations: PlumX Metrics

2015BR15      Phys.Rev. C 92, 041301 (2015)

B.A.Brown, D.L.Fang, M.Horoi

Evaluation of the theoretical nuclear matrix elements for ββ decay of ⁷⁶Ge

RADIOACTIVITY ⁷⁶Ge(2β^-); calculated nuclear matrix elements (NMEs) for 2νββ and 0νββ decay modes using configuration-interaction (CI), quasiparticle random-phase approximation (QRPA), and interacting boson model methods. Comparison with experimental values.

doi: 10.1103/PhysRevC.92.041301
Citations: PlumX Metrics

2015FA05      Phys.Rev. C 91, 025503 (2015)

D.-L.Fang, B.A.Brown

Effect of first-forbidden decays on the shape of neutrino spectra

RADIOACTIVITY ¹³⁶Te, ¹⁴⁰Xe(β^-); calculated levels, J, π in ¹³⁶I and ¹⁴⁰Cs, logft, neutrino spectra of low-lying first-forbidden (FF) β decay branches by shell-model (SM) and pn-QRPA (QRPA). Comparison with available experimental values.

doi: 10.1103/PhysRevC.91.025503
Citations: PlumX Metrics

2015FA11      Phys.Rev. C 92, 044301 (2015)

D.-L.Fang, A.Faessler, F.Simkovic

Partial restoration of isospin symmetry for neutrinoless double β decay in the deformed nuclear system of ¹⁵⁰Nd

RADIOACTIVITY ¹⁵⁰Nd(2β^-); calculated nuclear matrix elements (NME), Fermi and Gamow-Teller matrix elements for the 0νββ decay mode, decomposition of the matrix elements for different values of Kπ using the deformed quasiparticle random-phase approximation (pn-QRPA) method. Isospin symmetry restoration.

doi: 10.1103/PhysRevC.92.044301
Citations: PlumX Metrics

2015MU04      J.Phys.(London) G42, 034027 (2015)

M.Mumpower, R.Surman, D.L.Fang, M.Beard, A.Aprahamian

The impact of uncertain nuclear masses near closed shells on the r-process abundance pattern

doi: 10.1088/0954-3899/42/3/034027
Citations: PlumX Metrics

2015MU12      Phys.Rev. C 92, 035807 (2015)

M.R.Mumpower, R.Surman, D.-L.Fang, M.Beard, P.Moller, T.Kawano, A.Aprahamian

Impact of individual nuclear masses on r-process abundances

NUCLEAR STRUCTURE Z=30-75, N=60-130, A=120-210; calculated relevant Q values, neutron capture rates, photodissociation rates, β-decay rates, and β-delayed neutron emission probabilities using the 2012 version of the Finite-Range Droplet Model (FRDM), and by considering variations of individual nuclear masses; deduced influence of uncertainties in individual masses on the r-process abundance distribution.

doi: 10.1103/PhysRevC.92.035807
Citations: PlumX Metrics

2013FA05      Phys.Rev. C 88, 024314 (2013)

D.-L.Fang, B.A.Brown, T.Suzuki

β-decay properties for neutron-rich Kr-Tc isotopes from deformed pn-quasiparticle random-phase approximation calculations with realistic forces

RADIOACTIVITY ^{96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111}Kr, ^{97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112}Rb, ^{98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113}Sr, ^{99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114}Y, ^{104,105,106,107,108,109,110,111,112,113,114,115}Zr, ^{105,106,107,108,109,110,111,112,113,114,115,116}Nb, ^{107,108,109,110,111,112,113,114,115,116,117}Mo, ^{108,109,110,111,112,113,114,115,116,117,118}Tc(β^-), (β^-n); calculated half-lives, delayed neutron emission probabilities P_n. ^98,100Y, ¹⁰⁰Nb, ¹⁰⁸Tc; calculated low-spin low-lying levels, J, π; and compared with experimental values. Deformed quasiparticle random-phase approximation (pn-QRPA) method with realistic CD-Bonn forces, including Gamow-Teller and first-forbidden β transitions. Comparison of half-life and P_n values with available data from RIKEN facility. Implications for r-process elemental abundances.

doi: 10.1103/PhysRevC.88.024314
Citations: PlumX Metrics

2013FA08      Phys.Rev. C 88, 034304 (2013)

D.-L.Fang, B.A.Brown, T.Suzuki

Investigating β-decay properties of spherical nuclei along the possible r-process path

RADIOACTIVITY ^{118,120,122,124,126,128,130,132}Cd, ^136,138,140Xe, ¹³⁹Cs, ^203,205Au, ²⁰⁷Tl(β^-); ¹²⁴Mo, ¹²⁵Tc, ¹²⁶Ru, ¹²⁷Rh, ¹²⁸Pd, ¹²⁹Ag, ¹³⁰Cd, ¹³¹In, ¹⁹⁰Gd, ¹⁹¹Tb, ¹⁹²Dy, ¹⁹³Ho, ¹⁹⁴Er, ¹⁹⁵Tm, ¹⁹⁶Yb, ¹⁹⁷Lu, ¹⁹⁸Hf, ¹⁹⁹Ta, ^113,115,117As, ^114,116,118Se, ^115,117,119Br, ^116,118,120Kr, ^117,119,121Rb, ^118,120,122Sr, ^119,121,123Y, ^120,122,124Zr, ^121,123,125Nb, ^122,124,126Mo, ^123,125,127Tc, ^124,126,128Ru, ^125,127,129Rh, ^126,128,130Pd, ^127,129,131Ag, ^128,130,132Cd, ^129,131,133In, ^130,132,134Sn, ^131,133,135Sb, ^174,176Sn, ^175,177Sb, ^176,178Te, ^177,179I, ^178,180Xe, ^179,181Cs, ^180,182,184Ba, ^181,183,185La, ^182,184,186Ce, ^183,185,187Pr, ^184,186,188Nd, ^185,187,189Pm, ^186,188,190Sm, ^187,189,191Eu, ^188,190,192Gd, ^189,191,193Tb, ^190,192,194Dy, ^191,193,195Ho, ^192,194,196Er, ^193,195,197Tm, ^194,196,198Yb, ^195,197,199Lu, ^196,198,200Hf, ^197,199,201Ta, ^198,200,202W, ^199,201,203Re, ^200,202,204Os, ^201,203,205Ir, ^202,204,206Pt, ^203,205,207Au, ^206,208Hg, ^207,209Tl(β^-), (β^-n); calculated Q values, half-life, delayed neutron emission probability P_n, logft, first-forbidden to total ratio. Spherical QRPA + real forces (FRDM+GTF, FRDM+Real, HFB21+Real) using different mass models. Comparison with experimental data. Relevance to r-process path.

NUCLEAR STRUCTURE ^{118,120,122,124,126,128,130,132}Cd, ^136,138,140Xe, ¹³⁹Cs, ^203,205Au, ²⁰⁷Tl; calculated levels, J, π. Spherical QRPA + real forces. Comparison with experimental data.

doi: 10.1103/PhysRevC.88.034304
Citations: PlumX Metrics

2012FA02      Phys.Rev. C 85, 035503 (2012)

D.-L.Fang, K.Blaum, S.Eliseev, A.Faessler, M.I.Krivoruchenko, V.Rodin, F.Simkovic

Evaluation of the resonance enhancement effect in neutrinoless double-electron capture in ¹⁵²Gd, ¹⁶⁴Er, and ¹⁸⁰W atoms

RADIOACTIVITY ¹⁵²Gd, ¹⁶⁴Er, ¹⁸⁰W(2EC); calculated matrix elements and half-lives for neutrinoless double-electron capture. Deformed quasiparticle random-phase approximation using the realistic charge-dependent Bonn (CD-Bonn) nucleon-nucleon interaction. Comparison of half-life with that for neutrinoless 2β decay of ⁷⁶Ge.

doi: 10.1103/PhysRevC.85.035503
Citations: PlumX Metrics

2010FA17      Phys.Rev. C 82, 051301 (2010)

D.-L.Fang, A.Faessler, V.Rodin, F.Simkovic

Neutrinoless double-β decay of ¹⁵⁰Nd accounting for deformation

NUCLEAR STRUCTURE ¹⁵⁰Nd(2β^-); calculated neutrinoless double-beta decay matrix elements while accounting for β₂ deformation parameter. Microscopic calculation with quasiparticle random phase approximation (QRPA) approach and realistic residual interaction. Relevance for SNO+ collaboration and the best sensitivity for the Majorana neutrino mass measurement.

doi: 10.1103/PhysRevC.82.051301
Citations: PlumX Metrics