NSR Query Results
Output year order : Descending NSR database version of April 29, 2024. Search: Author = A.Palffy Found 32 matches. 2023JI06 Phys. Rev. Res. 5, 023134 (2023) J.Jin, H.Bekker, T.Kirschbaum, Y.A.Litvinov, A.Palffy, J.Sommerfeldt, A.Surzhykov, P.G.Thirolf, D.Budker Excitation and probing of low-energy nuclear states at high-energy storage rings RADIOACTIVITY 229Th(IT); analyzed available data; deduced electric dipole transitions changing both the electronic and nuclear states that are opened by the nuclear hyperfine mixing, and using them for efficient isomer excitation in Li-like 229Th ions, via stimulated Raman adiabatic passage or single-laser excitation.
doi: 10.1103/PhysRevResearch.5.023134
2023PA10 Nature(London) 617, 678 (2023) Photon lights a path towards a nuclear clock
doi: 10.1038/d41586-023-01631-8
2022CH46 Phys. Rev. Res. 4, L032007 (2022) Y.-H.Chen, P.-H.Lin, G.-Y.Wang, A.Palffy, W.-T.Liao Transient nuclear inversion by x-ray free electron laser in a tapered x-ray waveguide NUCLEAR REACTIONS 169Tm, 187Os, 133Ba, 57Fe(γ, X), E<15 keV; calculated Lamb-Mossbauer factors, the reduced nuclear transition probability B(M1), the internal conversion coefficient and the spontaneous radiative rates.
doi: 10.1103/PhysRevResearch.4.L032007
2022KI13 Phys.Rev. C 105, 064313 (2022) T.Kirschbaum, N.Minkov, A.Palffy Nuclear coherent population transfer to the 229mTh isomer using x-ray pulses NUCLEAR REACTIONS 229Th(γ, γ'), E=29.19 keV; calculated transfer rate to 229mTe 8 eV state population from second excited state (29.19 keV) populated by coherent x-ray pulses. 229Th; calculated B(M1), B(E2), radiative transition rates, branching ratios, radiative and total decay width. Investigated the efficiency of nuclear coherent population transfer (NCPT) from the ground state to the isomeric state via two quantum optical transfer schemes: Stimulated Raman adiabatic passage (STIRAP) and use of two subsequent π pulses. Discussed possibility of experimental studies at XFEL facilities. Comparison to experimental data.
doi: 10.1103/PhysRevC.105.064313
2022WU10 Phys.Rev.Lett. 128, 162501 (2022) Y.Wu, S.Gargiulo, F.Carbone, C.H.Keitel, A.Palffy Dynamical Control of Nuclear Isomer Depletion via Electron Vortex Beams
doi: 10.1103/PhysRevLett.128.162501
2021KO13 Phys.Rev. C 103, 044616 (2021) S.Kobzak, H.A.Weidenmuller, A.Palffy Laser-nucleus interactions in the sudden regime
doi: 10.1103/PhysRevC.103.044616
2021MI03 Phys.Rev. C 103, 014313 (2021) 229mTh isomer from a nuclear model perspective NUCLEAR STRUCTURE 229,229mTh; calculated β2 versus β3 plots as function of K values for the g.s. and isomer state single particle orbitals and the respective average parities, single-particle and quasiparticle energy of the 3/2+ isomer orbital with respect to the 5/2+ g.s. orbital, B(M1) and B(E2) for the isomeric transition, magnetic moments for the g.s. and the isomer. Quadrupole-octupole (QO) vibration-rotation core plus particle model with Woods-Saxon deformed shell model (DSM) quadrupole and octupole deformations. Comparison with experimental data.
doi: 10.1103/PhysRevC.103.014313
2020BI05 Phys.Rev.Lett. 124, 192502 (2020) P.V.Bilous, H.Bekker, J.C.Berengut, B.Seiferle, L.V.D.Wense, P.G.Thirolf, T.Pfeifer, J.R.C.Lopez-Urrutia, A.Palffy Electronic Bridge Excitation in Highly Charged 229Th Ions NUCLEAR REACTIONS Th(γ, X)229mTh, E<10 eV; calculated low-lying electronic energy levels in Th, nuclear EB excitation rate in the EBIT, Zeeman splitting and Doppler broadening of the absorbed photon energy.
doi: 10.1103/physrevlett.124.192502
2020NI02 Phys.Rev.Lett. 125, 032501 (2020) B.S.Nickerson, M.Pimon, P.V.Bilous, J.Gugler, K.Beeks, T.Sikorsky, P.Mohn, T.Schumm, A.Palffy Nuclear Excitation of the 229Th Isomer via Defect States in Doped Crystals RADIOACTIVITY 229Th(IT); calculated electronic bridge excitation rates involving stimulated emission or absorption using an optical laser.
doi: 10.1103/PhysRevLett.125.032501
2020PA09 Phys.Rev. C 101, 034619 (2020) A.Palffy, P.-G.Reinhard, H.Weidenmuller Rate for laser-induced nuclear dipole absorption
doi: 10.1103/PhysRevC.101.034619
2020PA16 Phys.Rev.Lett. 124, 212505 (2020) Can Extreme Electromagnetic Fields Accelerate the α Decay of Nuclei? RADIOACTIVITY 106Te, 144Nd, 162W, 212Po, 238Pu, 238U(α); calculated T1/2, parameters using Wentzel-Kramers-Brillouin approximation in the framework of the α decay precluster model.
doi: 10.1103/PhysRevLett.124.212505
2020VO09 Eur.Phys.J. A 56, 176 (2020) L.von der Wense, P.V.Bilous, B.Seiferle, S.Stellmer, J.Weitenberg, P.G.Thirolf, A.Palffy, G.Kazakov The theory of direct laser excitation of nuclear transitions
doi: 10.1140/epja/s10050-020-00177-x
2019MI05 Phys.Rev.Lett. 122, 162502 (2019) Theoretical Predictions for the Magnetic Dipole Moment of 229mTh NUCLEAR MOMENTS 229Th; calculated isomeric state nuclear magnetic moments. Comparison with available data.
doi: 10.1103/PhysRevLett.122.162502
2019SE13 Nature(London) 573, 243 (2019) B.Seiferle, L.von der Wense, P.V.Bilous, I.Amersdorffer, C.Lemell, F.Libisch, S.Stellmer, T.Schumm, C.E.Dullmann, A.Palffy, P.G.Thirolf Energy of the 229Th nuclear clock transition RADIOACTIVITY 229Th(IT); measured decay products, Eγ, Iγ; deduced transition energy of this isomeric state to the ground state with an uncertainty of 0.17 electronvolts (one standard deviation) using spectroscopy of the internal conversion electrons emitted in flight during the decay of neutral 229mTh atoms.
doi: 10.1038/s41586-019-1533-4
2019WU06 Phys.Rev.Lett. 122, 212501 (2019) 93mMo Isomer Depletion via Beam-Based Nuclear Excitation by Electron Capture RADIOACTIVITY 93Mo(IT) [from 7Li(90Zr, X)93Mo, E not given]; calculated nuclear excitation by electron capture (NEEC) excitation rates; deduced disagreement with the experimental data by approximately 9 orders of magnitude.
doi: 10.1103/PhysRevLett.122.212501
2018BI05 Phys.Rev. C 97, 044320 (2018) P.V.Bilous, N.Minkov, A.Palffy Electric quadrupole channel of the 7.8 eV 229Th transition RADIOACTIVITY 229Th(IT); calculated B(M1), B(E2) for 7.8-eV γ transition from 229mTh to the g.s. for internal conversion (IC) and electronic bridging (EB) modes in neutral and partially ionized atoms involving 7s, 7p1/2, 7p3/2 6d3/2, 6d5/2, 5f5/2 and 5f7/2 atomic orbitals; deduced dominance of E2 channel in IC or EB multipole mixing for 7p, 6d, and 5f atomic orbitals. Dirac-Hartree-Fock (DHF) and random-phase approximation (RPA) method. Comparison with other theoretical results.
doi: 10.1103/PhysRevC.97.044320
2018WU01 Phys.Rev.Lett. 120, 052504 (2018) Y.Wu, J.Gunst, C.H.Keitel, A.Palffy Tailoring Laser-Generated Plasmas for Efficient Nuclear Excitation by Electron Capture RADIOACTIVITY 93Mo(IT); analyzed available data; calculated nuclear excitation by electron capture (NEEC) rates, laser parameters, electron density, temperature.
doi: 10.1103/PhysRevLett.120.052504
2017BI04 Phys.Rev. A 95, 032503 (2017) P.V.Bilous, G.A.Kazakov, I.D.Moore, T.Schumm, A.Palffy Internal conversion from excited electronic states of 229Th ions NUCLEAR STRUCTURE 229Th; calculated internal conversion coefficients, lifetimes of the excited electronic states, internal conversion rates. Comparison with available data.
doi: 10.1103/PhysRevA.95.032503
2017MI07 Phys.Rev.Lett. 118, 212501 (2017) Reduced Transition Probabilities for the Gamma Decay of the 7.8 eV Isomer in 229Th RADIOACTIVITY 229Th(IT); calculated the reduced magnetic dipole, electric quadrupole transition probabilities for the radiative decay of the 7.8 eV isomer to the ground state.
doi: 10.1103/PhysRevLett.118.212501
2017VO08 Phys.Rev.Lett. 119, 132503 (2017) L.von der Wense, B.Seiferle, S.Stellmer, J.Weitenberg, G.Kazakov, A.Palffy, P.G.Thirolf A Laser Excitation Scheme for 229mTh RADIOACTIVITY 229Th(IT); analyzed available data; deduced direct laser excitation scheme.
doi: 10.1103/physrevlett.119.132503
2015PA43 Phys.Rev. C 92, 044619 (2015) A.Palffy, O.Buss, A.Hoefer, H.A.Weidenmuller Laser-nucleus interactions: The quasi-adiabatic regime
doi: 10.1103/PhysRevC.92.044619
2014GU07 Phys.Rev.Lett. 112, 082501 (2014) J.Gunst, Y.A.Litvinov, C.H.Keitel, A.Palffy Dominant Secondary Nuclear Photoexcitation with the X-Ray Free-Electron Laser RADIOACTIVITY 93Mo(IT) [from 93Nb(p, n)93mMo, E not given]; calculated contribution of the secondary processes coupling nuclei to the atomic shell; deduced dominance of the secondary processes over direct photoexcitation. Comparison with available data.
doi: 10.1103/PhysRevLett.112.082501
2014HE14 Phys.Rev. C 90, 015802 (2014) S.Helmrich, K.Spenneberg, A.Palffy Coupling highly excited nuclei to the atomic shell in dense astrophysical plasmas NUCLEAR REACTIONS 187Os, 193Ir(n, γ), E=low; calculated σ, stellar mitigation factor (SMF) for an intermediate nuclear excitation by electron capture (NEEC) or photoabsorption (PA) step in stellar plasma environments, reaction rates. Relevance to astrophysical s-process, and 187Re - 187Os cosmochronometer.
doi: 10.1103/PhysRevC.90.015802
2014KA36 Bull.Rus.Acad.Sci.Phys. 78, 672 (2014); Izv.Akad.Nauk RAS, Ser.Fiz 78, 891 (2014); Erratum Bull.Rus.Acad.Sci.Phys. 78, 1162 (2014) F.F.Karpeshin, M.B.Trzhaskovskaya, C.Brandau, A.Palffy Reverse conversion in 161Dy ions as an extension of dielectronic recombination NUCLEAR REACTIONS 161Dy(E, X), E=3.8-43.8 keV; calculated reverse CE σ. Storage rings applications.
doi: 10.3103/S1062873814070156
2014PA16 Phys.Rev.Lett. 112, 192502 (2014) Laser-Nucleus Reactions: Population of States Far above Yrast and Far from Stability
doi: 10.1103/PhysRevLett.112.192502
2013DA11 Phys.Rev. C 88, 024601 (2013) Quantum interference effects in an ensemble of 229Th nuclei interacting with coherent light NUCLEAR REACTIONS 229Th(γ, γ), E=ultraviolet region; calculated nuclear forward scattering (NFS) time spectra from a multi-level nuclear ensemble of 229Th doped in vacuum ultraviolet (VUV) transparent crystal for three- and four-level configurations interacting with one and two optical fields. Signature of the isomer excitation from quantum interference effects. Discussed design of precise experiments to determine the isomer transition energy by tuning the laser intensity and detuning. Population trapping in the isomeric state. Applications in nuclear quantum optics.
doi: 10.1103/PhysRevC.88.024601
2013LI21 Phys.Rev. C 87, 054609 (2013) W.-T.Liao, A.Palffy, C.H.Keitel Three-beam setup for coherently controlling nuclear-state population NUCLEAR REACTIONS 97Tc, 113Cd, 152Pm, 154Gd, 168Er, 172Yb, 185Re, 223Ra(γ, γ), E<1.8 MeV; calculated laser-induced coherent nuclear excitations using a collider system composed of two fully coherent XFEL beams together with an ion accelerator.
doi: 10.1103/PhysRevC.87.054609
2013PA29 Nucl.Phys. A917, 15 (2013) Nuclear level densities at high excitation energies and for large particle numbers
doi: 10.1016/j.nuclphysa.2013.08.011
2012LI56 Phys.Rev.Lett. 109, 262502 (2012) W.-T.Liao, S.Das, C.H.Keitel, A.Palffy Coherence-Enhanced Optical Determination of the 229Th Isomeric Transition ATOMIC PHYSICS 229Th; calculated isomeric transition, time spectra, fluorescence of thorium nuclei in a crystal lattice environment. Comparison with available data.
doi: 10.1103/PhysRevLett.109.262502
2008PA04 Phys.Lett. B 661, 330 (2008) A.Palffy, Z.Harman, C.Kozhuharov, C.Brandau, C.H.Keitel, W.Scheid T.Stohlker Nuclear excitation by electron capture followed by fast x-ray emission RADIOACTIVITY 232Th, 238U(IT); calculated excited state T1/2 for nuclear excitation following electron capture for differently charged ions.
doi: 10.1016/j.physletb.2008.07.02.027
2008PA08 Phys.Rev. C 77, 044602 (2008) Electric-dipole-forbidden nuclear transitions driven by super-intense laser fields NUCLEAR REACTIONS 83Kr, 137La, 151,153Sm, 151,153Eu, 156Gd, 161,162Dy, 165Ho, 169Tm, 173Yb, 181Ta, 187Os, 238U(γ, γ), E<12.4 keV; calculated nuclear excitation energies, B(E1), multipolarities.
doi: 10.1103/PhysRevC.77.044602
2007PA40 Phys.Rev.Lett. 99, 172502 (2007) Isomer Triggering via Nuclear Excitation by Electron Capture RADIOACTIVITY 93Mo, 152Eu, 178Hf, 189Os, 204Pb, 235U, 242Am(IT); calculated total cross sections for nuclear excitation by electron capture.
doi: 10.1103/PhysRevLett.99.172502
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