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NSR database version of April 26, 2024.

Search: Author = D.Tarpanov

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2015PA34      Phys.Rev. C 92, 024305 (2015)

A.Pastore, D.Tarpanov, D.Davesne, J.Navarro

Spurious finite-size instabilities in nuclear energy density functionals: Spin channel

NUCLEAR STRUCTURE ⁴⁰Ca, ⁵⁶Ni, ¹³²Sn, ²⁰⁸Pb; calculated finite-size instabilities in the ground state properties of atomic nuclei and vibrational excited states. Skyrme functionals non-converging results in atomic nuclei. Discussed quantitative stability criterion to detect finite-size instabilities. Systematic fully-self consistent Random Phase Approximation (RPA) calculations in spherical doubly-magic nuclei. Comparison of RPA calculations in atomic nuclei with Linear Response in Symmetric Nuclear Matter.

doi: 10.1103/PhysRevC.92.024305
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2014TA04      Phys.Rev. C 89, 014307 (2014)

D.Tarpanov, J.Toivanen, J.Dobaczewski, B.G.Carlsson

Polarization corrections to single-particle energies studied within the energy-density-functional and quasiparticle random-phase approximation approaches

NUCLEAR STRUCTURE Z=50, A=100-132; calculated self-interaction energies, and polarization corrections to quasiparticle energies using models based on perturbative polarization corrections using HF, RPA, QRPA methods, and mean-field approach using energy density functionals (EDFs). Discussed conflicting results between the two approaches for obtaining masses of odd-A nuclei. Also discussed differences between the polarization-correction and full particle-vibration-coupling (PVC) models.

doi: 10.1103/PhysRevC.89.014307
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2014TA34      Phys.Rev.Lett. 113, 252501 (2014)

D.Tarpanov, J.Dobaczewski, J.Toivanen, B.G.Carlsson

Spectroscopic Properties of Nuclear Skyrme Energy Density Functionals

doi: 10.1103/PhysRevLett.113.252501
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2013BA38      Phys.Rev. C 88, 021302 (2013)

C.Bauer, G.Rainovski, N.Pietralla, D.Bianco, A.Blazhev, T.Bloch, S.Bonig, A.Damyanova, M.Danchev, K.A.Gladnishki, T.Kroll, J.Leske, N.Lo Iudice, T.Moller, K.Moschner, J.Pakarinen, P.Reiter, M.Scheck, M.Seidlitz, B.Siebeck, C.Stahl, R.Stegmann, T.Stora, Ch.Stoyanov, D.Tarpanov, M.J.Vermeulen, D.Voulot, N.Warr, F.Wenander, V.Werner, H.De Witte

Local suppression of collectivity in the N=80 isotones at the Z=58 subshell closure

NUCLEAR REACTIONS ⁴⁸Ti, ⁶⁴Zn(¹⁴⁰Nd, ¹⁴⁰Nd'), E=399 MeV; measured Eγ, Iγ, (particle)γ-coin, yields using RILIS source and Miniball array at REX-ISOLDE-CERN facility. ¹⁴⁰Nd; deduced E2 and diagonal matrix elements, B(E2) and Q₂ for first 2+ state from Coulomb excitation. ⁴⁸Ti, ⁶⁴Zn, ¹⁴⁰Sm; measured Eγ for first 2+ states. Comparison with shell-model and QPM calculations. Systematics of B(E2) values for first 2+ states in even-even N=80, Z=50-60 nuclei.

doi: 10.1103/PhysRevC.88.021302
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2013GA12      Phys.Rev. C 87, 034324 (2013)

Y.Gao, J.Dobaczewski, M.Kortelainen, J.Toivanen, D.Tarpanov

Propagation of uncertainties in the Skyrme energy-density-functional model

NUCLEAR STRUCTURE Z=20, 28, 50, 82, N=20, 28, 50, 82, 126; calculated standard uncertainties in binding energies, S(2n), S(2p), neutron and proton rms radii. Skyrme energy-density-functional (UNEDF0-EDF) model.

doi: 10.1103/PhysRevC.87.034324
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2011LO23      Phys.Rev. C 84, 044314 (2011)

N.Lo Iudice, Ch.Stoyanov, D.Tarpanov

E2 transitions in Sn isotopes within the quasiparticle-phonon model

NUCLEAR STRUCTURE ^{102,104,106,108,110,112,114,116,118,120,122,124,126,128,130}Sn; analyzed first 2+ excitation energies, B(E2) values, configurations. Quasiparticle-phonon model, quadrupole pairing with bare effective charges. Comparison with experimental data.

doi: 10.1103/PhysRevC.84.044314
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2010TA32      J.Phys.:Conf.Ser. 205, 012029 (2010)

D.Tarpanov, Ch.Stoyanov, N.Lo Iudice, N.Van Giai, V.Voronov

Structure of the low-lying states in some N=80 isotones

NUCLEAR STRUCTURE ¹³⁶Ba, ¹³⁸Ce; calculated B(E2), B(M1), fragmentation of gigantic resonance using QPM with separable interaction from Skyrme force. Compared with data.

doi: 10.1088/1742-6596/205/1/012029
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2008LO05      Phys.Rev. C 77, 044310 (2008)

N.Lo Iudice, Ch.Stoyanov, D.Tarpanov

Fine structure of proton-neutron mixed symmetry states in some N = 80 isotones

NUCLEAR STRUCTURE ¹³⁴Xe, ¹³⁶Ba, ¹³⁸Ce; calculated level energies, B(E2), J, π, configurations, B(M1). Quasiparticle-phonon model. Comparison with experimental data.

doi: 10.1103/PhysRevC.77.044310
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2008TA12      Phys.Rev. C 77, 054316 (2008)

D.Tarpanov, H.Liang, N.Van Giai, C.Stoyanov

Mean-field study of single-particle spectra evolution in Z = 14 and N = 28 chains

NUCLEAR STRUCTURE ^{34,36,38,40,42}Si, ⁴⁴S, ⁴⁶Ar, ⁴⁸Ca; calculated spin-orbit splitting, subshell closure, single-particle levels. Skyrme-Hartree-Fock and relativistic Hartree-Fock mean field models.

doi: 10.1103/PhysRevC.77.054316
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2007TA22      Phys.Atomic Nuclei 70, 1402 (2007)

D.Tarpanov, C.Stoyanov, N.Van Giai, V.V.Voronov

Low-Lying electric dipole transitions in tin isotopic chain within the RPA model

NUCLEAR STRUCTURE Sn; calculated B(E1) distributions using QRPA.

doi: 10.1134/S1063778807080133
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