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NSR database version of April 11, 2024.

Search: Author = N.Tsoneva

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2023IS05      Phys.Rev. C 108, L051301 (2023)

J.Isaak, D.Savran, N.Pietralla, N.Tsoneva, A.Zilges, K.Eberhardt, C.Geppert, C.Gorges, H.Lenske, D.Renisch

Direct demonstration of the two-phonon structure of the Jnullp = 1-4742keV

doi: 10.1103/PhysRevC.108.L051301
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2022SH39      Phys.Rev. C 106, 044326 (2022)

T.Shizuma, S.Endo, A.Kimura, R.Massarczyk, R.Schwengner, R.Beyer, T.Hensel, H.Hoffmann, A.Junghans, K.Romer, S.Turkat, A.Wagner, N.Tsoneva

Low-lying dipole strength distribution in 204Pb

NUCLEAR REACTIONS 204Pb(γ, γ'), E<10.5 MeV; measured Eγ, Iγ; deduced levels, J, branching ratios, average branching ratios, integrated scattering σ(E), photoabsorption σ(E), B(E1) strength distribution. Comparison to other experimental results and self-consistent energy density-functional theory+three-phonon quasiparticle-phonon model (EDF+QPM) calculations. Bremsstrahlung facility γELBE of the Helmholtz-Zentrum Dresden-Rossendorf.

doi: 10.1103/PhysRevC.106.044326
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2021WE16      Phys.Rev.Lett. 127, 242501 (2021)

M.Weinert, M.Spieker, G.Potel, N.Tsoneva, M.Muscher, J.Wilhelmy, A.Zilges

Microscopic Structure of the Low-Energy Electric Dipole Response of 120Sn

NUCLEAR REACTIONS 119Sn(d, p), E=8.5 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray yields, pygmy dipole resonance. Detailed structure input from energy-density functional plus quasiparticle-phonon model theory with reaction theory.

doi: 10.1103/PhysRevLett.127.242501
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2020SO26      Commun. Phys. 11, 3242 (2020)

P.-A.Soderstrom, L.Capponi, E.Aciksoz, T.Otsuka, N.Tsoneva, Y.Tsunoda, D.L.Balabanski, N.Pietralla, G.L.Guardo, D.Lattuada, H.Lenske, C.Matei, D.Nichita, A.Pappalardo, T.Petruse

Electromagnetic character of the competitive γγ/γ-decay from 137mBa

RADIOACTIVITY 137Cs(β-), 137Ba(IT); measured decay products, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies, widths and nuclear static dipole polarisabilities, angular correlation of the two photons emitted in the double-γ decay, Energy-sharing distribution for the two photons in the double-γ decay, an improved value on the double-photon versus single-photon branching ratio. Comparison with calculations. CeBr3 detectors from ELIGANT, the ELI Gamma Above Neutron Threshold (ELIGANT) detector system.

doi: 10.1038/s41467-020-16787-4
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2020SP05      Phys.Rev.Lett. 125, 102503 (2020)

M.Spieker, A.Heusler, B.A.Brown, T.Faestermann, R.Hertenberger, G.Potel, M.Scheck, N.Tsoneva, M.Weinert, H.-F.Wirth, A.Zilges

Accessing the Single-Particle Structure of the Pygmy Dipole Resonance in 208Pb

NUCLEAR REACTIONS 207Pb(d, p), E=22 MeV; measured reaction products, Ep, Ip; deduced σ(θ), B(E1), transition densities, Pygmy Dipole Resonance. Comparison with large-scale shell model calculations.

doi: 10.1103/PhysRevLett.125.102503
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2549. Data from this article have been entered in the XUNDL database. For more information, click here.


2019LE20      Eur.Phys.J. A 55, 238 (2019)

H.Lenske, N.Tsoneva

Dissolution of shell structures and the polarizability of dripline nuclei

doi: 10.1140/epja/i2019-12811-6
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2019TS06      Nucl.Phys. A990, 183 (2019)

N.Tsoneva, M.Spieker, H.Lenske, A.Zilges

Fine structure of the pygmy quadrupole resonance in 112, 114Sn

doi: 10.1016/j.nuclphysa.2019.07.008
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2017TO16      Phys.Lett. B 773, 20 (2017)

A.P.Tonchev, N.Tsoneva, C.Bhatia, C.W.Arnold, S.Goriely, S.L.Hammond, J.H.Kelley, E.Kwan, H.Lenske, J.Piekarewicz, R.Raut, G.Rusev, T.Shizuma, W.Tornow

Pygmy and core polarization dipole modes in 206Pb: Connecting nuclear structure to stellar nucleosynthesis

NUCLEAR REACTIONS 208Pb(γ, γ'), E=4.9-8.1 MeV; analyzed available data; deduced a range for the neutron-skin thickness of and a corresponding range for the slope of the symmetry energy, Maxwellian-averaged radiative σ.

doi: 10.1016/j.physletb.2017.07.062
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2016DE05      Phys.Rev. C 93, 034311 (2016)

V.Derya, N.Tsoneva, T.Aumann, M.Bhike, J.Endres, M.Gooden, A.Hennig, J.Isaak, H.Lenske, B.Loher, N.Pietralla, D.Savran, W.Tornow, V.Werner, A.Zilges

Decay of quadrupole-octupole 1- states in 40Ca and 140Ce

NUCLEAR REACTIONS 40Ca, 140Ce(polarized γ, γ'), E=3.6, 5.9 MeV; measured Eγ, Iγ, γγ-coin, polarization asymmetry and analyzing powers using high intensity γ-ray Source (HIγS) facility at (TUNL); deduced levels, J, π, B(E1), B(E2). Comparisons with energy density functional (EDF) and quasiparticle-phonon model (QPM) calculations. B(E1) and B(E2) systematics for N=82 isotones of 138Ba, 140Ce, 142Nd, 144Sm.

doi: 10.1103/PhysRevC.93.034311
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2016SP01      Phys.Lett. B 752, 102 (2016)

M.Spieker, N.Tsoneva, V.Derya, J.Endres, D.Savran, M.N.Harakeh, S.Harissopulos, R.-D.Herzberg, A.Lagoyannis, H.Lenske, N.Pietralla, L.Popescu, M.Scheck, F.Schluter, K.Sonnabend, V.I.Stoica, H.J.Wortche, A.Zilges

The pygmy quadrupole resonance and neutron-skin modes in 124Sn

NUCLEAR REACTIONS 124Sn(α, α'), E=34 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ(θ), B(E2), pygmy quadrupole resonance. Comparison with quasiparticle random-phase approximation calculations.

doi: 10.1016/j.physletb.2015.11.004
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2396. Data from this article have been entered in the XUNDL database. For more information, click here.


2015KR04      Phys.Rev. C 91, 044328 (2015)

Krishichayan, M.Bhike, W.Tornow, G.Rusev, A.P.Tonchev, N.Tsoneva, H.Lenske

Polarized photon scattering off 52Cr Determining the parity of J=1 states

NUCLEAR REACTIONS 52Cr(polarized γ, γ'), E=5.21, 5.56, 6.40, 6.50, 7.00, 7.08, 7.19, 7.40, 7.51, 7.74, 7.89, 8.02, 8.11, 8.20, 8.75, 8.95, 9.15, 9.25, 9.36, 9.45 MeV; measured Eγ, Iγ, linear polarization using High Intensity γ-Ray Source (HIγS) facility of TUNL. 52Cr; deduced levels, J, π, B(M1), B(E1), E1 and M1 strength functions, spin-flip M1 resonance structure around 9.1 MeV, fragmentation pattern of the dipole strength below and around the neutron emission threshold, new mode of excitation related to pygmy dipole resonance (PDR). Comparison with calculations using three-phonon quasiparticle phonon model (QPM) with self-consistent energy-density functional theory.

doi: 10.1103/PhysRevC.91.044328
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2015PE08      Phys.Rev. C 92, 014330 (2015)

L.Pellegri, A.Bracco, N.Tsoneva, R.Avigo, G.Benzoni, N.Blasi, S.Bottoni, F.Camera, S.Ceruti, F.C.L.Crespi, A.Giaz, S.Leoni, H.Lenske, B.Million, A.I.Morales, R.Nicolini, O.Wieland, D.Bazzacco, P.Bednarczyk, B.Birkenbach, M.Ciemala, G.de Angelis, E.Farnea, A.Gadea, A.Gorgen, A.Gottardo, J.Grebosz, R.Isocrate, M.Kmiecik, M.Krzysiek, S.Lunardi, A.Maj, K.Mazurek, D.Mengoni, C.Michelagnoli, D.R.Napoli, F.Recchia, B.Siebeck, S.Siem, C.Ur, J.J.Valiente-Dobon

Multitude of 2+ discrete states in 124Sn observed via the (17O, 17O' γ) reaction: Evidence for pygmy quadrupole states

NUCLEAR REACTIONS 124Sn(17O, 17O'), E=340 MeV; measured Eγ, Iγ, γ(θ), particle spectra, (17O)γ-coin, inelastic scattering σ using the AGATA array at Tandem-ALPI accelerator complex of INFN-LNL facility. 124Sn; deduced levels, J, π, multipolarity, B(E2) for 2+ states, sum rule strength for the ISGQR. DWBA analysis. Comparison with self-consistent density functional theory and extended QRPA approach describing 2+ states as pygmy quadrupole resonances.

doi: 10.1103/PhysRevC.92.014330
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0793. Data from this article have been entered in the XUNDL database. For more information, click here.


2015TS01      Phys.Rev. C 91, 044318 (2015)

N.Tsoneva, S.Goriely, H.Lenske, R.Schwengner

Pygmy resonances and radiative nucleon captures for stellar nucleosynthesis

NUCLEAR REACTIONS 86Kr, 88Sr, 90Zr, 92Mo(γ, X), E=4-11 MeV; calculated dipole photoabsorption σ(E), B(E1); 85Kr, 87Sr, 89Y, 91Mo(n, γ), E=0.001-10 MeV; calculated capture σ(E), partial capture σ(E) to a compound nuclear state, Maxwellian-averaged cross sections. 89Zr, 91Mo(n, γ), E=0.001-10 MeV; 89Y(p, γ), E=1.6-6 MeV; predicted theoretical σ(E). Self-consistent energy density functional (EDF)+quasiparticle-random phase-approximation (QRPA) with and without pygmy dipole resonances (PDR), three-phonon EDF+quasiparticle-phonon-model (QPM), Hartree Fock Bogoliubov (HFB)+QRPA calculations based on BSk7 force and implemented in statistical reaction model TALYS code to assess contribution of PDR to radiative capture cross sections. Comparison with experimental data.

doi: 10.1103/PhysRevC.91.044318
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2014OZ03      Phys.Rev. C 90, 024304 (2014)

B.Ozel-Tashenov, J.Enders, H.Lenske, A.M.Krumbholz, E.Litvinova, P.von Neumann-Cosel, I.Poltoratska, A.Richter, G.Rusev, D.Savran, N.Tsoneva

Low-energy dipole strength in 112, 120Sn

NUCLEAR REACTIONS 112Sn(γ, γ'), E(endpoint)=5.5, 7.5, 9.5 MeV bremsstrahlung; 120Sn(γ, γ'), E(endpoint)=7.5, 9.1 MeV bremsstrahlung; measured Eγ, Iγ, γ(θ) using S-DALINAC NRF facility at the TU Darmstadt. 112,120Sn; deduced levels, Γ02/Γ, B(E1), summed B(E1) strengths. Fluctuation analysis of γ spectra for unresolved strength. Comparison with quasiparticle-phonon model, and relativistic time blocking approximations (RQTBA), and previous experimental results.

doi: 10.1103/PhysRevC.90.024304
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2013RA23      Phys.Rev.Lett. 111, 112501 (2013)

R.Raut, A.P.Tonchev, G.Rusev, W.Tornow, C.Iliadis, M.Lugaro, J.Buntain, S.Goriely, J.H.Kelley, R.Schwengner, A.Banu, N.Tsoneva

Cross-Section Measurements of the 86Kr(γ, n) Reaction to Probe the s-Process Branching at 85Kr

NUCLEAR REACTIONS 86Kr, 197Au(γ, n), E<9.86-13 MeV; measured reaction products, Eγ, Iγ; deduced σ for direct and inverse reactions, 82,86Kr isotopic ratios. Comparison with HFB+QRPA calculations, TALYS code.

doi: 10.1103/PhysRevLett.111.112501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0174.


2013RU01      Phys.Rev.Lett. 110, 022503 (2013)

G.Rusev, N.Tsoneva, F.Donau, S.Frauendorf, R.Schwengner, A.P.Tonchev, A.S.Adekola, S.L.Hammond, J.H.Kelley, E.Kwan, H.Lenske, W.Tornow, A.Wagner

Fine Structure of the Giant M1 Resonance in 90Zr

NUCLEAR REACTIONS 90Zr(γ, γ'), E=7-11 MeV; measured reaction products, Eγ, Iγ; deduced dipole excitations, 1+ states, fine structure of the giant M1 resonance, B(M1). Comparison with three-phonon QPM calculations.

doi: 10.1103/PhysRevLett.110.022503
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2013SC03      Phys.Rev. C 87, 024306 (2013)

R.Schwengner, R.Massarczyk, G.Rusev, N.Tsoneva, D.Bemmerer, R.Beyer, R.Hannaske, A.R.Junghans, J.H.Kelley, E.Kwan, H.Lenske, M.Marta, R.Raut, K.D.Schilling, A.Tonchev, W.Tornow, A.Wagner

Pygmy dipole strength in 86Kr and systematics of N=50 isotones

NUCLEAR REACTIONS 86Kr(γ, γ'), (polarized γ, γ'), E<11.2 MeV; measured Eγ, Iγ, γγ(θ), widths, azimuthal asymmetry, integrated σ. ELBE accelerator facility at HZDR, and HIγS facility at TUNL. 86Kr; deduced levels, PDR, J, π, branching ratios, photoabsorption σ(E), energy-weighted sums of photoabsorption σ. Comparison of photoabsorption σ with that from (γ, n) reaction.

NUCLEAR STRUCTURE 86Kr, 88Sr, 90Zr, 92Mo; calculated neutron skin thickness, B(E1), proton and neutron transition densities using QRPA calculations. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.87.024306
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0178. Data from this article have been entered in the XUNDL database. For more information, click here.


2012TS07      J.Phys.:Conf.Ser. 366, 012043 (2012)

N.Tsoneva, H.Lenske

Investigations of Skin Nuclei in a Density Functional Approach

NUCLEAR STRUCTURE 112,120Sn; calculated B(E1) vs E* using QRPA and two- and three-phonon QPM. 104,108,112,116,120,124,132,134Sn; calculated main proton and main neutron 2QP components of the 2+2 states vs mass, sum of B(E2) vs mass using QRPA. Some calculations compared to data.

doi: 10.1088/1742-6596/366/1/012043
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2011LE06      Prog.Part.Nucl.Phys. 66, 368 (2011)

H.Lenske, S.E.A.Orrigo, N.Tsoneva

Density functional theory for reactions of astrophysical interest

NUCLEAR STRUCTURE 100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132Sn; calculated electric dipole strength distributions, B(E1), nuclear skin thickness. QRPA results.

NUCLEAR REACTIONS 138Ba(γ, X), E<9 mEV; calculated photo-absorption σ. QRPA results.

doi: 10.1016/j.ppnp.2011.01.036
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2011TO17      J.Phys.:Conf.Ser. 312, 092058 (2011)

A.P.Tonchev, S.L.Hammond, J.H.Kelley, E.Kwan, H.Lenske, R.Raut, G.Rusev, W.Tornow, N.Tsoneva

Coarse and Fine Structure of the Pygmy Dipole Resonance

NUCLEAR REACTIONS 138Ba(polarized γ, γ), (polarized γ, γ'), E=5.4, 7.2, 8.5 MeV; measured Eγ, Iγ(θ) using HPGe with nuclear resonance fluorescence; deduced σ, M1, E1 asymmetry, GDR, PDR photoabsorption σ, E1 ground-state γ transition strength, resonant-shape; calculated E1, M1 γ transition strength distribution using QPM.

doi: 10.1088/1742-6596/312/9/092058
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2010TO01      Phys.Rev.Lett. 104, 072501 (2010)

A.P.Tonchev, S.L.Hammond, J.H.Kelley, E.Kwan, H.Lenske, G.Rusev, W.Tornow, N.Tsoneva

Spectral Structure of the Pygmy Dipole Resonance

NUCLEAR REACTIONS 138Ba(γ, γ), (γ, γ'), E ≈ below one-neutron separation energy; measured Eγ, Iγ; deduced σ, energy levels, B(E1), B(M1). Comparison with QPM calculations.

doi: 10.1103/PhysRevLett.104.072501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0151.


2008SC20      Phys.Rev. C 78, 064314 (2008)

R.Schwengner, G.Rusev, N.Tsoneva, N.Benouaret, R.Beyer, M.Erhard, E.Grosse, A.R.Junghans, J.Klug, K.Kosev, H.Lenske, C.Nair, K.D.Schilling, A.Wagner

Pygmy dipole strength in 90Zr

NUCLEAR REACTIONS 90Zr(γ, γ'), E=7.9, 9.0, 13.2 MeV; measured Eγ, Iγ.σ, angular distributions, widths; deduced levels, J, π. Comparisons with calculations for 88Sr, 90Zr.

doi: 10.1103/PhysRevC.78.064314
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0142. Data from this article have been entered in the XUNDL database. For more information, click here.


2008TS01      Phys.Rev. C 77, 024321 (2008)

N.Tsoneva, H.Lenske

Pygmy dipole resonances in the tin region

NUCLEAR STRUCTURE 100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132Sn; calculated nucleon densities, B(E1), energy of first 1- state, configurations, pygmy-dipole resonance strengths, dipole transition densities, dipole energies, cross sections.

doi: 10.1103/PhysRevC.77.024321
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2008TS02      J.Phys.(London) G35, 014047 (2008)

N.Tsoneva, H.Lenske

Low-energy dipole excitations in nuclei at the N = 50, 82 and Z = 50 shell closures as signatures for a neutron skin

NUCLEAR STRUCTURE 88Sr, 90Zr, 100,102,106,108,110,112,122,132Sn, 136Xe, 138Ba, 140Ce, 142Nd, 144Sm; Z=50; N=50, 82; calculated one-phonon dipole transition densities, total PDR strength. Hartree-Fock-Bogoljubov (HFB) and quasiparticle-phonon model (QPM).

doi: 10.1088/0954-3899/35/1/014047
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2007LE13      Prog.Part.Nucl.Phys. 59, 114 (2007)

H.Lenske, U.Badarch, P.Konrad, S.E.A.Orrigo, N.Tsoneva

Density functional theory for nuclei and hypernuclei

doi: 10.1016/j.ppnp.2006.12.004
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2007TS06      Prog.Part.Nucl.Phys. 59, 317 (2007)

N.Tsoneva, H.Lenske

Pygmy dipole resonance in exotic nuclei

NUCLEAR STRUCTURE Sn;N=82; calculated one-phonon dipole transition densities and total PDR strength using a method incorporating both HFB and multi-phonon QPM theory.

doi: 10.1016/j.ppnp.2006.12.030
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2006VO11      Nucl.Phys. A779, 1 (2006)

S.Volz, N.Tsoneva, M.Babilon, M.Elvers, J.Hasper, R.-D.Herzberg, H.Lenske, K.Lindenberg, D.Savran, A.Zilges

The photoresponse of stable N = 82 nuclei below 10 MeV

NUCLEAR REACTIONS 138Ba(γ, γ'), E=9.2 MeV bremsstrahlung; 140Ce, 142Nd, 144Sm(γ, γ'), E=7.6, 9.9 MeV bremsstrahlung; measured Eγ, Iγ. 138Ba, 140Ce, 142Nd, 144Sm deduced dipole transition energies, B(E1). Comparison with quasiparticle-phonon model predictions.

doi: 10.1016/j.nuclphysa.2006.08.012
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetM0821. Data from this article have been entered in the XUNDL database. For more information, click here.


2004LE17      Prog.Part.Nucl.Phys. 53, 153 (2004)

H.Lenske, C.M.Keil, N.Tsoneva

Correlation dynamics in dripline nuclei

doi: 10.1016/j.ppnp.2004.02.020
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2004SC39      Phys.Rev. C 70, 044319 (2004)

M.Scheck, H.von Garrel, N.Tsoneva, D.Belic, P.von Brentano, C.Fransen, A.Gade, J.Jolie, U.Kneissl, C.Kohstall, A.Linnemann, A.Nord, N.Pietralla, H.H.Pitz, F.Stedile, C.Stoyanov, V.Werner

Dipole strength distributions in the stable Ba isotopes 134-138Ba: A study in the mass region of a nuclear shape transition

NUCLEAR REACTIONS 135,137Ba(γ, γ'), E=2.5, 3.1, 4.1 MeV bremsstrahlung; measured Eγ, Iγ. 135,137Ba deduced level energies, widths, branching ratios, dipole strength distributions. Comparison with quasiparticle-phonon model predictions.

doi: 10.1103/PhysRevC.70.044319
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2004TS02      Nucl.Phys. A731, 273 (2004)

N.Tsoneva, H.Lenske, Ch.Stoyanov

Pygmy Dipole Resonances as a Manifestation of the Structure of the Neutron-Rich Nuclei

NUCLEAR STRUCTURE 120,122,124,126,128,130Sn; calculated level energies, B(E1), B(E2), B(E3), pygmy dipole resonance features.

doi: 10.1016/j.nuclphysa.2003.11.038
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2004TS03      Phys.Lett. B 586, 213 (2004)

N.Tsoneva, H.Lenske, Ch.Stoyanov

Probing the nuclear neutron skin by low-energy dipole modes

NUCLEAR STRUCTURE 120,122,124,126,128,130,132Sn; calculated level energies, transitions B(Eλ), pygmy dipole resonance features; deduced dependence on neutron skin thickness.

doi: 10.1016/j.physletb.2004.02.024
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2001BA03      Nucl.Phys. A679, 373 (2001)

V.Baran, M.Cabibbo, M.Colonna, M.Di Toro, N.Tsoneva

The Dynamical Dipole Mode in Dissipative Heavy-Ion Collisions

NUCLEAR REACTIONS 100Mo(40Ca, X), E=4 MeV/nucleon; calculated γ-spectra from compound nucleus decay. 98Mo(16O, X), E=4, 8, 14, 20 MeV/nucleon; 64Ni(50Cr, X), E=3.5-5.5 MeV/nucleon; calculated density, dipole phonon time evolution, γ-spectra, related features; deduced role of GDR, energy and mass asymmetry effects. Comparisons with data.

doi: 10.1016/S0375-9474(00)00365-1
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2001BE69      Yad.Fiz. 64, No 11, 1987 (2001); Phys.Atomic Nuclei 64, 1901 (2001)

A.G.Belov, Yu.P.Gangrsky, L.M.Melnikova, V.Yu.Ponomarev, N.Tsoneva, Ch.Stoyanov, A.Tonchev, N.Balabanov

Excitation of Isomeric 1h11/2 States in Nuclear Reactions Induced by γ Rays and Neutrons and in Beta Decay

NUCLEAR REACTIONS 134Xe, 136Ba, 138Ce(n, γ), E ≈ 6.5-7.5 MeV; 136Xe, 138Ba, 140Ce, 142Nd, 144Sm(γ, n), E ≈ 3.5-6.1 MeV; measured activation yields, isomeric ratios. Comparison with model predictions.

RADIOACTIVITY 139Pr, 141Pm, 143Eu(β+); measured Eγ, Iγ. 139Ce, 141Nd, 143Sm; deduced probability for isomer population.

doi: 10.1134/1.1423740
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetM0629.


2001DI10      Nucl.Phys. A687, 72c (2001)

M.Di Toro, V.Baran, M.Cabibbo, M.Colonna, N.Tsoneva

The Dynamical Dipole Mode

NUCLEAR REACTIONS 98Mo(16O, X), E=4-20 MeV/nucleon; 64Ni(50Cr, X), E=3.4, 5.5 MeV/nucleon; calculated phase space trajectory of entrance channel dipole, time evolution of dipole γ-rays, γ spectra, GDR features. Transport equations, pre-equilibrium GDR.

doi: 10.1016/S0375-9474(01)00603-0
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2001ST21      Yad.Fiz. 64, No 6, 1223 (2001); Phys.Atomic Nuclei 64, 1147 (2001)

Ch.Stoyanov, N.Lo Iudice, N.Tsoneva, M.Grinberg

Properties of the Low-Lying Excited States in Even-Even Nuclei Around the Closed Shell N = 82

NUCLEAR STRUCTURE 136Ba, 144Nd; calculated levels, J, π, B(E2), B(M1). Quasiparticle phonon model.

doi: 10.1134/1.1383632
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2000DI20      Fiz.Elem.Chastits At.Yadra 31, 875 (2000); Phys.Part.Nucl. 31, 433 (2000)

M.Di Toro, V.Baran, M.Cabibbo, M.Colonna, A.B.Larionov, N.Tsoneva

The Nuclear Giant Dipole Resonance under Extreme Conditions

NUCLEAR STRUCTURE 208Pb; calculated GDR centroid, width vs temperature. 140Sm, 208Pb; calculated γ spectra from GDR deexcitation.

NUCLEAR REACTIONS 98Mo(16O, X), E=4-20 MeV/nucleon; 64Ni(50Cr, X), E=3.5, 5.5 MeV/nucleon; calculated compound nucleus dipole moment, mass density time evolution.


2000TS01      Phys.Rev. C61, 044303 (2000)

N.Tsoneva, Ch.Stoyanov, Yu.P.Gangrsky, V.Yu.Ponomarev, N.P.Balabanov, A.P.Tonchev

Population of Isomers in the Decay of the Giant Dipole Resonance

NUCLEAR REACTIONS 138Ba, 140Ce, 142Nd, 144Sm(γ, n), E=10-26 MeV bremsstrahlung; measured σ, isomeric ratios. Comparison with quasiparticle-phonon model calculations.

doi: 10.1103/PhysRevC.61.044303
Citations: PlumX Metrics


1999DI18      Acta Phys.Pol. B30, 1331 (1999)

M.Di Toro, V.Baran, M.Cabibbo, M.Colonna, A.B.Larionov, S.Maccarone, N.Tsoneva

The Giant Dipole Resonance as a Probe of Nuclear Structure Under Extreme Conditions


1999ST13      Nucl.Phys. A649, 93c (1999)

Ch.Stoyanov, V.Yu.Ponomarev, N.Tsoneva, M.Grinberg

The Influence of the GDR on the Low-Energy E1 Transitions in Spherical Nuclei

NUCLEAR STRUCTURE 120Sn, 144Sm, 144Nd; calculated hindered transitions B(E1); deduced two-phonon, GDR components. Comparison with data.

doi: 10.1016/S0375-9474(99)00045-7
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1998GR23      Fiz.Elem.Chastits At.Yadra 29, 1456 (1998); Phys.Part.Nucl. 29, 606 (1998)

M.Grinberg, Ch.Stoyanov, N.Tsoneva

Interplay of Collective and Noncollective Modes at Low Excitation Energy in Spherical Nuclei

NUCLEAR STRUCTURE 144Nd, 144,146Sm, 124Te; calculated levels, J, π; deduced configurations. 138Ba, 140Ce, 142,144Nd, 144,146Sm, 124Te; calculated B(λ). 144Nd, 146Sm, 124Te; calculated transitions δ. Quasiparticle phonon model.


1998PO07      Nucl.Phys. A635, 470 (1998)

V.Yu.Ponomarev, Ch.Stoyanov, N.Tsoneva, M.Grinberg

Boson Forbidden Low-Energy E1-Transitions in Spherical Nuclei

NUCLEAR STRUCTURE 120Sn, 144Sm, 144Nd; calculated transitions B(E1); deduced core dipole polarization effects. Quasiparticle phonon model.

doi: 10.1016/S0375-9474(98)00187-0
Citations: PlumX Metrics


1998TS05      Yad.Fiz. 61, No 5, 816 (1998); Phys.Atomic Nuclei 61, 734 (1998)

N.Tsoneva, A.I.Vdovin, Ch.Stoyanov, M.Grinberg

Magnetic Polarization and Two-Phonon States

NUCLEAR STRUCTURE 142Ce, 144Sm; calculated two-phonon states wave functions, B(M2); deduced magnetic core polarization effect.


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