NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = A.Staszczak Found 36 matches. 2019CA04 Phys.Rev. C 99, 014606 (2019) X.G.Cao, E.J.Kim, K.Schmidt, K.Hagel, M.Barbui, J.Gauthier, S.Wuenschel, G.Giuliani, M.R.D.Rodriguez, S.Kowalski, H.Zheng, M.Huang, A.Bonasera, R.Wada, N.Blando, G.Q.Zhang, C.Y.Wong, A.Staszczak, Z.X.Ren, Y.K.Wang, S.Q.Zhang, J.Meng, J.B.Natowitz Examination of evidence for resonances at high excitation energy in the 7 α disassembly of 28Si NUCLEAR REACTIONS 12C(28Si, X), (28Si, 7α), E=35 MeV/nucleon; measured Eα, Iα, excitation functions for the α-conjugate exit channels using the 4π NIMROD-ISiS array for charged particle detection at the K500 superconducting cyclotron facility of Texas A and M. 28Si; deduced resonances at high excitation energies, shapes of 7α events in the de-excitation of projectile-like nuclei; calculated energies, J, π, configurations, quadrupole deformation of toroidal high-spin isomers using covariant functional PC-PK1 and DD-ME2.
doi: 10.1103/PhysRevC.99.014606
2018WO02 Phys.Rev. C 98, 034316 (2018) Shells in a toroidal nucleus in the intermediate-mass region
doi: 10.1103/PhysRevC.98.034316
2017ST08 Phys.Rev. C 95, 054315 (2017) A.Staszczak, C.-Y.Wong, A.Kosior Toroidal high-spin isomers in the nucleus 304120 NUCLEAR STRUCTURE 304120; calculated total Hartree-Fock-Bogoliubov (HFB) energy surface contour as a function of quadrupole and octupole moments, proton and neutron single-particle levels in the toroidal configuration as a function of quadrupole moment, particle-hole excitation configurations, proton and neutron single-particle Routhians, deformation energies as a function of quadrupole moment, toroidal high-spin isomers. Cranked self-consistent Skyrme-Hartree-Fock method.
doi: 10.1103/PhysRevC.95.054315
2015BA54 Nucl.Phys. A944, 442 (2015) A.Baran, M.Kowal, P.-G.Reinhard, L.M.Robledo, A.Staszczak, M.Warda Fission barriers and probabilities of spontaneous fission for elements with Z ≥ 100 NUCLEAR STRUCTURE 258Fm, 262No, 266Rf, 270Sg, 274Hs, 278Ds, 282Cn, 286Fl, 290,292,294,296,298,300,302,304Lv; calculated fission barriers vs quadrupole moment; revised previous paper by different quadrupole moment definition. 266Hs; calculated fission barriers vs quadrupole moment using MM model, Skyrme HFB approach, Gogny HF model.
doi: 10.1016/j.nuclphysa.2015.06.002
2015HE31 Nucl.Phys. A944, 415 (2015) P.-H.Heenen, J.Skalski, A.Staszczak, D.Vretenar Shapes and α- and β-decays of superheavy nuclei NUCLEAR STRUCTURE 254No, 256Rf; calculated potential surface, triaxial deformation, low-energy collective levels, J, π, B(E2); Z=114, 120, 126; calculated gs quadrupole deformation parameters; Z=116, 118, 120, 122, 124, 126; calculated deformation energy curves; 268,270,272,274Hs; calculated low two-quasiparticle levels, J, π corresponding to symmetric solutions. RADIOACTIVITY Z=100-128(α); calculated α decay Q, T1/2, deformation, compared with available data. Z=101-120(β-), (β+), (EC); calculated neutron numbers for which T1/2 is above 1 s.
doi: 10.1016/j.nuclphysa.2015.07.016
2015ST05 Acta Phys.Pol. B46, 675 (2015) Particle-hole Nature of the Light High-spin Toroidal Isomers NUCLEAR STRUCTURE 24Mg, 28Si, 32S, 36Ar, 40Ca, 44Ti, 48Cr, 52Fe; calculated excitation energies, quadrupole moments, density distributions of isomeric toroidal states. Comparison with available data.
doi: 10.5506/APhysPolB.46.675
2015ST17 Phys.Scr. 90, 114006 (2015) Toroidal high-spin isomers in light nuclei with N ≠ Z NUCLEAR STRUCTURE 28,32,34Si, 36,38S, 40,42Ar, 40Ca, 44Ti, 48Cr, 52Fe; calculated single-particle states, total HFB and isomeric toroidal states energies, quadrupole moments. Comparison with available data.
doi: 10.1088/0031-8949/90/11/114006
2014BA14 Acta Phys.Pol. B45, 273 (2014) Theoretical Survey of Superheavy Elements NUCLEAR STRUCTURE Z=108, 110, 112, 114, 116, 118, 120, 122, 124, 126; calculated ground states, spontaneous fission T1/2. Skyrme HFB theory calculations.
doi: 10.5506/APhysPolB.45.273
2014BA64 Phys.Scr. 89, 054002 (2014) Fission of rotating fermium isotopes RADIOACTIVITY 238,240,242,244,246,248,250,252,254,256,258,260,262,266,266Fm(SF); calculated fission barrier, T1/2 for different angular momenta.
doi: 10.1088/0031-8949/89/5/054002
2014MC09 Phys.Rev. C 90, 021302 (2014) J.D.McDonnell, W.Nazarewicz, J.A.Sheikh, A.Staszczak, M.Warda Excitation-energy dependence of fission in the mercury region NUCLEAR STRUCTURE 174,180,198Hg, 196,210Po; calculated ground-state potential-energy surfaces in (Q20, Q30) plane, total shell correction energies along the symmetric and asymmetric fission pathways, potential-energy curves as function of excitation energy, fission pathways. Finite-temperature superfluid nuclear density functional theory (FT-DFT) with Skyrme energy density functional SkM* and a density-dependent pairing interaction. Role of shell structure of pre-scission configurations in transition from asymmetric fission in proton-rich nuclei to a more symmetric fission in heavier isotope.
doi: 10.1103/PhysRevC.90.021302
2013BA08 Acta Phys.Pol. B44, 283 (2013) Stability of Superheavy Elements in Skyrme HFB Approach RADIOACTIVITY 264,266,270Hs, 270Ds, 282,284Cn, 286,288Fl, 290,292Lv, 294Og(α); calculated Q-value, T1/2. Comparison with experimental data.
doi: 10.5506/APhysPolB.44.283
2013BA25 Phys.Scr. T154, 014027 (2013) Rotational 2+ states of superheavy elements in the Skyrme-Hartree-Fock-Bogoliubov model NUCLEAR STRUCTURE Z=108-126, N=148-180; calculated the energies of first 2+ rotational states of deformed superheavy (SH) elements; deduced estimates of the Q-values of α-decay processes. Fully microscopic Skyrme-HFB theory.
doi: 10.1088/0031-8949/2013/T154/014027
2013PR02 Acta Phys.Pol. B44, 287 (2013) Superdeformed Oblate Superheavy Nuclei in the Self-consistent Approach NUCLEAR STRUCTURE 284,286,288120, 284,286,288,290,292122; calculated total HFB energy, total energy for axial shapes.
doi: 10.5506/APhysPolB.44.287
2013ST04 Phys.Rev. C 87, 024320 (2013) A.Staszczak, A.Baran, W.Nazarewicz Spontaneous fission modes and lifetimes of superheavy elements in the nuclear density functional theory RADIOACTIVITY 234,236,238,240,242,244,246,248,250,252,254,256,258,260,262,264,266Fm, 256,258,260,262,264,266,268,270,272,274,276,278,280,282,284,286,288,290,292,294,296Hs, 260,262,264,266,268,270,272,274,276,278,280,282,284,286,288,290,292,294,296,298Ds, 266,268,270,272,274,276,278,280,282,284,286,288,290,292,294,296,298,300Cn, 272,274,276,278,280,282,284,286,288,290,292,294,296,298,300,302Fl, 278,280,282,284,286,288,290,292,294,296,298,300,302,304Lv, 284,286,288,290,292,294,296,298,300,302,304,306Og, 290,292,294,296,298,300,302,304,306,308120, 296,298,300,302,304,306,308,310122, 302,304,306,308,310,312124, 306,308,310,312,314126(SF), (α); calculated inner fission barrier EA, Q(α), α-decay and SF half-lives. Self-consistent symmetry-unrestricted nuclear density functional (SkM* Skyrme) theory, with adiabatic time-dependent Hartree-Fock-Bogoliubov (HFB) approach. Triaxiality and reflection asymmetry included. Comparison with experimental data. Prediction of two competing SF modes: reflection symmetric and reflection asymmetric.
doi: 10.1103/PhysRevC.87.024320
2012WA26 Phys.Rev. C 86, 024601 (2012) M.Warda, A.Staszczak, W.Nazarewicz Fission modes of mercury isotopes RADIOACTIVITY 180,198Hg(SF); calculated potential energy surfaces (PES) in Q20-Q30 plane, elongation, triaxiality, reflection-asymmetry, necking, density distributions at scission configurations, fission pathways as function of quadrupole moment. Self-consistent nuclear density functional theory using Skyrme and Gogny energy density functionals SkM* and D1S.
doi: 10.1103/PhysRevC.86.024601
2011BA12 Int.J.Mod.Phys. E20, 557 (2011) A.Baran, A.Staszczak, W.Nazarewicz Fission half lives of fermium isotopes within Skyrme Hartree-Fock-Bogoliubov theory RADIOACTIVITY 242,244,246,248,250,252,254,256,258,260Fm(SF); calculated cranking mass parameters, mass quadrupole moments; deduced T1/2.
doi: 10.1142/S0218301311018009
2011BA45 Phys.Rev. C 84, 054321 (2011) A.Baran, J.A.Sheikh, J.Dobaczewski, W.Nazarewicz, A.Staszczak Quadrupole collective inertia in nuclear fission: Cranking approximation NUCLEAR STRUCTURE 256Fm; calculated total energy, proton, neutron and pairing energies, particle-hole energy, quadrupole mass parameter, quadrupole moment. One-dimensional quadrupole fission pathways. Cranking approximation to the adiabatic time-dependent Hartree-Fock-Bogoliubov (ATDHFB) approach. Comparison with Gaussian overlap approximation.
doi: 10.1103/PhysRevC.84.054321
2011ST07 Int.J.Mod.Phys. E20, 552 (2011) A.Staszczak, A.Baran, W.Nazarewicz Breaking of axial and reflection symmetries in spontaneous fission of fermium isotopes RADIOACTIVITY 236,238,240,242,244,246,248,250,252,254,256,258,260,262,264,266Fm(SF); calculated quadrupole moments, pre-scission shapes; deduced fission mechanisms.
doi: 10.1142/S0218301311017995
2010ST15 Eur.Phys.J. A 46, 85 (2010) A.Staszczak, M.Stoitsov, A.Baran, W.Nazarewicz Augmented Lagrangian method for constrained nuclear density functional theory NUCLEAR STRUCTURE 252Fm; calculated energy surface vs quadrupole, octupole moment using augmented Lagrangian method with density functional theory and constrained Skyrme HFB.
doi: 10.1140/epja/i2010-11018-9
2010WA10 Int.J.Mod.Phys. E19, 787 (2010) M.Warda, A.Staszczak, L.Prochniak Comparison of self-consistent Skyrme and Gogny calculations for light Hg isotopes NUCLEAR STRUCTURE 178,180,182,184Hg; calculated potential energy surfaces, ground state properties. Hartree-Fock-Bogoliubov approach with the Skyrme and Gogny force.
doi: 10.1142/S0218301310015230
2009BA35 Int.J.Mod.Phys. E18, 1049 (2009) A.Baran, J.A.Sheikh, A.Staszczak, W.Nazarewicz Fission quadrupole mass parameters in HF+BCS and HFB methods NUCLEAR STRUCTURE 252Fm; calculated mass dependent on quadrupole moment using self-consistent Hartree-Fock+BCS and Hartree-Fock-Bogoliubov method for large deformations.
doi: 10.1142/S0218301309013221
2009ST09 Acta Phys.Pol. B40, 753 (2009) Toroidal Super-Heavy Nuclei in Skyrme-Hartree-Fock Approach
2009ST14 Phys.Rev. C 80, 014309 (2009) A.Staszczak, A.Baran, J.Dobaczewski, W.Nazarewicz Microscopic description of complex nuclear decay: Multimodal fission RADIOACTIVITY 242,244,246,248,250,252,254,256,258,260,264Fm, 254Cf, 258No, 262Hs(SF); calculated fission pathways, fission half-lives, quadrupole moments, potential energy curves, total energy surfaces using microscopic description of multi-modal fission based on symmetry unrestricted nuclear density functional theory (DFT). Rf, Sg, Hs; predicted trimodal spontaneous fission. Comparison with experimental data.
doi: 10.1103/PhysRevC.80.014309
2007BA17 Int.J.Mod.Phys. E16, 443 (2007) A.Baran, A.Staszczak, J.Dobaczewski, W.Nazarewicz Collective inertia and fission barriers within the Skyrme-Hartree-Fock theory NUCLEAR STRUCTURE 252,256,258Fm; calculated fission barriers, quadrupole inertia tensor, zero-point quadrupole correlation energy. Self-consistent Skyrme-Hartree-Fock approach.
doi: 10.1142/S0218301307005879
2007ST02 Int.J.Mod.Phys. E16, 310 (2007) A.Staszczak, J.Dobaczewski, W.Nazarewicz Pairing properties of superheavy nuclei NUCLEAR STRUCTURE 288Rf, 290Sg, 292Hs, 294Ds, 296Cn, 298Fl, 300Lv, 302Og, 304120, 306122, 308124, 310126; calculated binding energies, hexadecapole moments, pairing gaps vs quadrupole moment, static fission paths.
doi: 10.1142/S0218301307005740
2007ST13 Acta Phys.Pol. B38, 1589 (2007) A.Staszczak, J.Dobaczewski, W.Nazarewicz Bimodal Fission in the Skyrme-Hartree-Fock Approach RADIOACTIVITY 256,258,260Fm(SF); calculated fission barriers and trajectories in a SHF+BCS framework.
2006ST04 Int.J.Mod.Phys. E15, 302 (2006) A.Staszczak, J.Dobaczewski, W.Nazarewicz Fission barriers of superheavy nuclei in the Skyrme-Hartree-Fock Model NUCLEAR STRUCTURE 242,244,246,248,250,252,254,256,258,260,262,264Fm, 250,252,254,256,258,260,262,264No, 254,256,258,260,262,264,288Rf, 258,260,262,264,266,268,290Sg, 262,264,266,268,270,272,292Hs, 268,270,272,274,276,278,294Ds, 296Cn, 298Fl, 300Lv, 302Og, 304120, 306122, 308124, 310126; calculated total binding energy vs quadrupole moment, fission barrier features. Skyrme-Hartree-Fock model.
doi: 10.1142/S0218301306004132
2005ST19 Int.J.Mod.Phys. E14, 395 (2005) A.Staszczak, J.Dobaczewski, W.Nazarewicz Skyrme-Hartree-Fock calculations of fission barriers of the heaviest and superheavy nuclei NUCLEAR STRUCTURE 240Pu, 242,244,246,248,250,252,254,256,258,260,262,264Fm, 294Ds, 296Cn, 298Fl, 300Lv, 302Og, 304120, 306122, 308124, 310126; calculated total binding energy vs deformation; deduced fission barriers.
doi: 10.1142/S0218301305003181
2003ST15 Yad.Fiz. 66, 1617 (2003); Phys.Atomic Nuclei 66, 1574 (2003) Nuclear Mean Field from Chirally Symmetric Effective Theory
doi: 10.1134/1.1601768
2001ST10 Acta Phys.Pol. B32, 685 (2001) The Effective Chiral Mean-Field Theory for Superheavy Nuclei
1999LO14 Nucl.Phys. A657, 134 (1999) Role of Pairing Degrees of Freedom and Higher Multipolarity Deformations in Spontaneous Fission Process NUCLEAR STRUCTURE Z=100-114; calculated fission T1/2 for even-even isotopes; deduced role of pairing, deformation.
doi: 10.1016/S0375-9474(99)00328-0
1996LO08 Acta Phys.Pol. B27, 531 (1996) Study of the Spontaneous Fission Half-Lives in the Multidimensional Collective Space RADIOACTIVITY 242,244,246,248,250,252,254,256,258Fm(SF); calculated SF-decay T1/2. Multi-dimensional collective space.
1994GO22 Acta Phys.Pol. B25, 665 (1994) The Pseudo-SU(3) Symmetry Scheme for Deformed Single-Particle Levels NUCLEAR STRUCTURE N=82-126; calculated Nilsson neutron single particle levels. Pseudo-SU(3) symmetry scheme.
1989PI03 Z.Phys. A332, 259 (1989) S.Pilat, K.Pomorski, A.Staszczak New Estimate of the Pairing Coupling Constant NUCLEAR STRUCTURE 146,148,150Nd, 148,150,152,154,156Sm, 150,152,154,156,158,160Gd, 152,154,156,158,160,162,164,166Dy, 160,162,164,166,168,170Er, 166,168,170,172,174Yb, 176,178,180Hf, 180,182,184,186,188W, 186,188,190,192Os, 230,232,234,236U, 234,236,238,240,242,244Pu, 242,244,246,248,250Cm, 246,248,250,252Cf, 252,254,256Fm, 256No, 214,216,218Rn, 216,218,220,222,224,226,228Ra, 224,226,228,230,232,234Th; analyzed mass difference systematics; deduced pairing interaction strength.
1989ST20 Nucl.Phys. A504, 589 (1989) A.Staszczak, S.Pilat, K.Pomorski Influence of the Pairing Vibrations on Spontaneous Fission Probability NUCLEAR STRUCTURE 250Fm; calculated SF-fission paths, barriers. 236,238,240,242,244,246,248,250,252,254Cm, 242,244,246,248,250,252,254,256,258Cf, 240,242,244,246,248,250,252,254,256,258,260Fm, 248,250,252,254,256,258,260,262No, 250Rf, 252Rf, 254Rf, 256Rf, 258Rf, 260Rf, 262Rf, 264Rf, 256Sg, 258Sg, 260Sg, 262Sg, 264Sg, 266Sg; calculated SF-decay T1/2. Generator coordinate method, Nilsson basis, pairing forces.
doi: 10.1016/0375-9474(89)90559-9
1985ST22 Phys.Lett. 161B, 227 (1985) A.Staszczak, A.Baran, K.Pomorski, K.Boning Coupling of the Pairing Vibrations with the Fission Mode NUCLEAR STRUCTURE 252Fm; calculated fission barrier, mass parameter. 234,236,238,240,242,244,246,248,250,252,254,256,258,260,264Fm; calculated T1/2(SF). Nilsson basis, monopole pairing interaction, cranking model.
doi: 10.1016/0370-2693(85)90750-6
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