NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = L.Jokiniemi Found 13 matches. 2023GI07 Universe 9, 270 (2023) P.Gimeno, L.Jokiniemi, J.Kotila, M.Ramalho, J.Suhonen Ordinary Muon Capture on 136Ba: Comparative Study Using the Shell Model and pnQRPA NUCLEAR REACTIONS 136Ba(μ, X)136Cs, E not given; calculated energy levels, J, π using the interacting shell model (ISM) and proton–neutron quasiparticle random-phase approximation (pnQRPA). Comparison with available data.
doi: 10.3390/universe9060270
2023JO01 Phys.Rev. C 107, 014327 (2023) L.Jokiniemi, T.Miyagi, S.R.Stroberg, J.D.Holt, J.Kotila, J.Suhonen Ab initio calculation of muon capture on 24Mg NUCLEAR REACTIONS 24Mg(μ-, ν), E at rest; calculated nuclear matrix elements, capture rates to the lowest levels of 24Na. Valence-space in-medium similarity renormalization group (VS-IMSRG) and nuclear shell model calculations. Comparison to experimental data. NUCLEAR STRUCTURE 24Mg, 24Na; calculated levels, J, π, B(E2), B(M1), magnetic dipole moments. 24Mg; calculated electric quadrupole moments. RADIOACTIVITY 24Na(β-); calculated log ft values for decay to excited states in 24Mg.
doi: 10.1103/PhysRevC.107.014327
2023JO02 Phys.Lett. B 838, 137689 (2023) L.Jokiniemi, B.Romeo, C.Brase, J.Kotila, P.Soriano, A.Schwenk, J.Menendez Two-neutrino ββ decay of 136Xe to the first excited 0+ state in 136Ba RADIOACTIVITY 136Xe(2β-); calculated nuclear matrix element for the two-neutrino ββ decay of 136Xe into the first excited state of 136Ba using the quasiparticle random-phase approximation (QRPA) framework, the nuclear shell model, the interacting boson model (IBM-2), and an effective field theory (EFT) for β and ββ decays; deduced T1/2.
doi: 10.1016/j.physletb.2023.137689
2023JO04 Phys.Rev. C 107, 044305 (2023) L.Jokiniemi, B.Romeo, P.Soriano, J.Menendez Neutrinoless ββ-decay nuclear matrix elements from two-neutrino ββ-decay data RADIOACTIVITY 48Ca, 76Ge, 82Se, 96Zr, 100Mo, 116Cd, 124Sn, 128,130Te, 136Xe(2β-); calculated 0νββ-decay and ββ-decay nuclear matrix elements (NME), correlations between obtained NMEs. Calculations with nuclear shell-model and proton-neutron quasiparticle random-phase approximation (pnQRPA) model with inclusion of two-body currents and the short-range operator. Obtained 0νββ NME using the correlation found in this work and measured ββ-decay NMEs.
doi: 10.1103/PhysRevC.107.044305
2023JO05 Phys.Rev. C 107, 044316 (2023) Correlations between neutrinoless double-β, double Gamow-Teller, and double-magnetic decays in the proton-neutron quasiparticle random-phase approximation framework RADIOACTIVITY 76Ge, 82Se, 96Zr, 100Mo, 116Cd, 124Sn, 128,130Te, 136Xe(2β-); calculated nuclear matrix elements (NME) for 0νβ∓decay, double Gamow-Teller (DGT) NME, double-magnetic-dipole (M1M1) transitions NME, correlations between obtained NMEs. Proton-neutron quasiparticle random-phase approximation (pnQRPA) model with wide range of proton-neutron pairing strength values, covering the typical range of values that describe well ββ- and β-decay data. Present strong linear correlations between 0νββ and both DGT and M1M1 matrix elements.
2022EJ01 Phys.Rev. C 105, L022501 (2022) H.Ejiri, L.Jokiniemi, J.Suhonen Nuclear matrix elements for neutrinoless ββ decays and spin-dipole giant resonances RADIOACTIVITY 76Ge, 96Zr, 100Mo, 116Cd, 128Cd, 130Te, 130Xe(2β-); calculated neutrinoless double-beta decay nuclear matrix elements. Proton-neutron quasiparticle random-phase approximation (pnQRPA) model. Discused the relation relation between the experimental spin-dipole strength distribution and nuclear matrix elements obtained with pnQRPA.
doi: 10.1103/PhysRevC.105.L022501
2022NE04 Eur.Phys.J. A 58, 44 (2022) D.A.Nesterenko, L.Jokiniemi, J.Kotila, A.Kankainen, Z.Ge, T.Eronen, S.Rinta-Antila, J.Suhonen High-precision Q-value measurement and nuclear matrix element calculations for the double-β decay of 98Mo ATOMIC MASSES 98Mo; measured cyclotron frequencies; deduced double-beta decay Q-value; calculated nuclear matrix elements using the proton-neutron quasiparticle random-phase approximation (pnQRPA) and the microscopic interacting boson model (IBM-2) frameworks. The JYFLTRAP Penning trap mass spectrometer.
doi: 10.1140/epja/s10050-022-00695-w
2020JO05 Phys.Rev. C 102, 024303 (2020) Comparative analysis of muon-capture and 0νββ-decay matrix elements NUCLEAR REACTIONS 76Se, 82Kr, 96Mo, 100Ru, 116Sn, 128,130Xe, 136Ba(μ-, ν)76As/82Br/96Nb/100Tc/116In/128I/130I/136Cs, momentum θ=50-100 MeV; calculated average matrix elements corresponding to the ordinary muon capture (OMC) on the 0+ ground states of daughters of 0νββ-decaying parent nuclei, and populating excited states in intermediate nuclei. Comparison with NMEs for 0νββ decays. Proton-neutron quasiparticle RPA with realistic two-body interactions and modified no-core Woods-Saxon single-particle bases. RADIOACTIVITY 76Ge, 82Se, 96Zr, 100Mo, 116Cd, 128,130Te, 136Xe(2β-); calculated nuclear matrix elements (NMEs) for 0νββ decay mode and compared with NMEs for ordinary muon capture (OMC) on daughter nuclei.
doi: 10.1103/PhysRevC.102.024303
2019JO04 Phys.Lett. B 794, 143 (2019) L.Jokiniemi, J.Suhonen, H.Ejiri, I.H.Hashim Pinning down the strength function for ordinary muon capture on 100Mo NUCLEAR REACTIONS 100Mo(μ-, X)100Nb, E not given; analyzed available data; calculated ordinary muon capture (OMC) strength function using the Morita-Fujii formalism of OMC by extending the original formalism beyond the leading order.
doi: 10.1016/j.physletb.2019.05.037
2019JO06 Phys.Rev. C 100, 014619 (2019) Muon-capture strength functions in intermediate nuclei of 0νββ decays NUCLEAR REACTIONS 76Se(μ-, ν)76As, E at rest; 82Kr(μ-, ν)82Br, E at rest; 96Mo(μ-, ν)96Nb, E at rest; 100Ru(μ-, ν)100Tc, E at rest; 116Sn(μ-, ν)116In, E at rest; 128Xe(μ-, ν)128I, E at rest; 130Xe(μ-, ν)130I, E at rest; 136Ba(μ-, ν)136Cs, E at rest;calculated ordinary muon capture (OMC) transition strengths and rates to excited states in β+-daughter nuclei using the proton-neutron quasiparticle random-phase approximation. Discussed relevance to deducing 0νββ-decay nuclear matrix elements.
doi: 10.1103/PhysRevC.100.014619
2018JO05 Phys.Rev. C 98, 024608 (2018) L.Jokiniemi, H.Ejiri, D.Frekers, J.Suhonen Neutrinoless ββ nuclear matrix elements using isovector spin-dipole Jπ = 2- data RADIOACTIVITY 76Ge, 96Zr, 100Mo, 116Cd, 128,130Te, 136Xe(2β-); calculated nuclear matrix elements 0νββ and 2νββ decay modes using realistic two-body interactions with either Woods-Saxon bases or modified Woods-Saxon bases. Comparison with previous theoretical predictions. 76Ge, 76Se, 96Zr, 96,100Mo, 100Ru, 116Cd, 116Sn, 128,130Te, 128,130,136Xe, 136Ba; calculated neutron and proton pairing gaps, 2- isovector spin-dipole resonance and 1+ Gamow-Teller giant resonance data, isovector spin-dipole 2- strength functions.
doi: 10.1103/PhysRevC.98.024608
2017JO10 Phys.Rev. C 96, 034308 (2017) Isovector spin-multipole strength distributions in β-decay triplets NUCLEAR STRUCTURE 76Ge, 76Se; 82Se, 82Kr; 96Zr, 96Mo; 100Mo, 100Ru; 116Cd, 116Sn; 128Te, 128Xe; 130Te, 130Xe; 136Xe, 136Ba; calculated pairing scaling factors and the resulting pairing gaps for double-β- decaying parent and daughter nuclei. 76As, 82Br, 96Nb, 100Tc, 116In, 128,130I, 136Cs; A=76, 82, 96, 100, 116, 128, 130, 136; calculated energy centroids of spin multipole giant resonance (SMGRs), isovector spin-dipole and isovector spin-quadrupole transition strengths from 0-, 1-, 2-, 1+, 2+, and 3+ excited states of the intermediate odd-odd nuclei. Proton-neutron quasiparticle random-phase approximation (pnQRPA) theory with the Bonn-A two-body interaction in no-core single-particle valence spaces.
doi: 10.1103/PhysRevC.96.034308
2016GR17 Eur.Phys.J. A 52, 340 (2016) T.Grahn, J.Pakarinen, L.Jokiniemi, M.Albers, K.Auranen, C.Bauer, C.Bernards, A.Blazhev, P.A.Butler, S.Bonig, A.Damyanova, T.De Coster, H.De Witte, J.Elseviers, L.P.Gaffney, M.Huyse, A.Herzan, U.Jakobsson, R.Julin, N.Kesteloot, J.Konki, Th.Kroll, L.Lewandowski, K.Moschner, P.Peura, M.Pfeiffer, D.Radeck, P.Rahkila, E.Rapisarda, P.Reiter, K.Reynders, M.Rudiger, M.-D.Salsac, S.Sambi, M.Scheck, M.Seidlitz, B.Siebeck, T.Steinbach, S.Stolze, J.Suhonen, P.Thoele, M.Thurauf, N.Warr, P.Van Duppen, M.Venhart, M.J.Vermeulen, V.Werner, M.Veselsky, A.Vogt, K.Wrzosek-Lipska, M.Zielinska Collective 2+1 excitations in 206Po and 208, 210Rn NUCLEAR REACTIONS 104Pd, 114Cd(206Po, x), E=2.85 MeV/nucleon;104Pd, 114Cd(208Rn, x), (210Rn, x), E=2.82 MeV/nucleon; measured Coulomb excitation Eγ, Iγ, γγ-coin using MINIBALL γ spectrometer, scattered projectiles and target recoils using annular double-sided Si strip detectors (CD), time difference between MINIBALL γ's and CD data; deduced γ ray energy spectra, diagonal vs transitional matrix element, B(E2); calculated B(E2) using QRPA.
doi: 10.1140/epja/i2016-16340-6
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