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Search: Author = I.Poltoratska

Found 21 matches.

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2018JI10      Eur.Phys.J. A 54, 234 (2018)

M.Jingo, E.Z.Buthelezi, J.Carter, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, C.O.Kureba, A.M.Krumbholz, P.von Neumann-Cosel, R.Neveling, P.Papka, I.Poltoratska, V.Yu.Ponomarev, A.Richter, E.Sideras-Haddad, F.D.Smit, J.A.Swartz, A.Tamii, I.T.Usman

Studies of the Giant Dipole Resonance in 27Al , 40Ca , 56Fe , 58Ni and 208Pb with high energy-resolution inelastic proton scattering under 0 degree

NUCLEAR REACTIONS 27Al, 40Ca, 56Fe, 58Ni, 208Pb(p, p'), E=200 MeV; measured Ep, Ip(θ) using two Vertical Drift Chambers and two plastic scintillators behind them; deduced σ(E, θ), IsoVector Giant Dipole Resonance (IVGDR) energy, Coulomb excitation σ vs E*, equivalent photoabsorption σ, IVGDR fine structure using Continuous Wavelet Transform (CWT) and Discrete Wavelet Transform (DWT); calculated equivalent photoabsorption σ using Quasiparticle-Phonon Model (QPM) with (1+2)-phonon and 1-phonon model spaces, power spectra from CWT analysis.

doi: 10.1140/epja/i2018-12664-5
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0936.


2017MA67      Phys.Rev.Lett. 119, 182503 (2017)

D.Martin, P.von Neumann-Cosel, A.Tamii, N.Aoi, S.Bassauer, C.A.Bertulani, J.Carter, L.Donaldson, H.Fujita, Y.Fujita, T.Hashimoto, K.Hatanaka, T.Ito, A.Krugmann, B.Liu, Y.Maeda, K.Miki, R.Neveling, N.Pietralla, I.Poltoratska, V.Yu.Ponomarev, A.Richter, T.Shima, T.Yamamoto, M.Zweidinger

Test of the Brink-Axel Hypothesis for the Pygmy Dipole Resonance

NUCLEAR REACTIONS 96Mo(polarized p, p'), E=295 MeV; measured reaction products, Ep, Ip; deduced σ(θ), σ(θ, E), gamma strength functions.

doi: 10.1103/PhysRevLett.119.182503
Citations: PlumX Metrics


2015HA21      Phys.Rev. C 92, 031305 (2015)

T.Hashimoto, A.M.Krumbholz, P.-G.Reinhard, A.Tamii, P.von Neumann-Cosel, T.Adachi, N.Aoi, C.A.Bertulani, H.Fujita, Y.Fujita, E.Ganioglu, K.Hatanaka, E.Ideguchi, C.Iwamoto, T.Kawabata, N.T.Khai, A.Krugmann, D.Martin, H.Matsubara, K.Miki, R.Neveling, H.Okamura, H.J.Ong, I.Poltoratska, V.Yu.Ponomarev, A.Richter, H.Sakaguchi, Y.Shimbara, Y.Shimizu, J.Simonis, F.D.Smit, G.Susoy, T.Suzuki, J.H.Thies, M.Yosoi, J.Zenihiro

Dipole polarizability of 120Sn and nuclear energy density functionals

NUCLEAR REACTIONS 120Sn(polarized p, p'), E=295 MeV; measured scattered proton spectra, p(θ) using Grand Raiden spectrometer at RCNP-Osaka; analyzed polarization transfer observables; deduced ISGQR excitation, B(E1), precise electric dipole polarizability αD, nuclear symmetry energy and its density dependence. Comparison with other experimental data. Comparison with model calculations based on Skyrme interactions and on relativistic Hamiltonians.

doi: 10.1103/PhysRevC.92.031305
Citations: PlumX Metrics


2015KR05      Phys.Lett. B 744, 7 (2015)

A.M.Krumbholz, P.von Neumann-Cosel, T.Hashimoto, A.Tamii, T.Adachi, C.A.Bertulani, H.Fujita, Y.Fujita, E.Ganioglu, K.Hatanaka, C.Iwamoto, T.Kawabata, N.T.Khai, A.Krugmann, D.Martin, H.Matsubara, R.Neveling, H.Okamura, H.J.Ong, I.Poltoratska, V.Yu.Ponomarev, A.Richter, H.Sakaguchi, Y.Shimbara, Y.Shimizu, J.Simonis, F.D.Smit, G.Susoy, J.H.Thies, T.Suzuki, M.Yosoi, J.Zenihiro

Low-energy electric dipole response in 120Sn

NUCLEAR REACTIONS 120Sn(p, p'), E=295 MeV; measured reaction products, Ep, Ip; deduced σ, σ(θ, E), B(E1). Comparison with available data.

doi: 10.1016/j.physletb.2015.03.023
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2480.


2015MA48      Phys.Rev.Lett. 115, 102501 (2015)

H.Matsubara, A.Tamii, H.Nakada, T.Adachi, J.Carter, M.Dozono, H.Fujita, K.Fujita, Y.Fujita, K.Hatanaka, W.Horiuchi, M.Itoh, T.Kawabata, S.Kuroita, Y.Maeda, P.Navratil, P.von Neumann-Cosel, R.Neveling, H.Okamura, L.Popescu, I.Poltoratska, A.Richter, B.Rubio, H.Sakaguchi, S.Sakaguchi, Y.Sakemi, Y.Sasamoto, Y.Shimbara, Y.Shimizu, F.D.Smit, K.Suda, Y.Tameshige, H.Tokieda, Y.Yamada, M.Yosoi, J.Zenihiro

Nonquenched Isoscalar Spin-M1 Excitations in sd-Shell Nuclei

NUCLEAR REACTIONS 24Mg, 28Si, 32S, 36Ar(p, p'), E=295 MeV; measured reaction products, Ep, Ip; deduced σ(θ), σ(θ, E), the squared spin M1 nuclear transition matrix elements, no quenching for isoscalar spin M1 transitions, while the matrix elements for isovector spin M1 transitions are quenched by an amount comparable with the analogous Gamow-Teller transitions on those target nuclei. Comparison with no-core shell model (NCSM) calculations.

doi: 10.1103/PhysRevLett.115.102501
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2491. Data from this article have been entered in the XUNDL database. For more information, click here.


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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Data from this article have been entered in the XUNDL database. For more information, click here.


2014PO03      Phys.Rev. C 89, 054322 (2014)

I.Poltoratska, R.W.Fearick, A.M.Krumbholz, E.Litvinova, H.Matsubara, P.von Neumann-Cosel, V.Yu.Ponomarev, A.Richter, A.Tamii

Fine structure of the isovector giant dipole resonance in 208Pb: Characteristic scales and level densities

NUCLEAR REACTIONS 208Pb(p, p'), E=295 MeV; analyzed experimental data obtained using Grand-Raiden spectrometer at RCNP facility, double-differential σ(θ), continuous and discrete wavelet transform (CWT, DWT) analysis of excitation energy spectrum, extraction of scales for the observed fine structure in isovector-giant dipole resonance (IVGDR), level density of 1- states in IVGDR region, GDR width, B(E1) strength. Comparison with theoretical predictions.

doi: 10.1103/PhysRevC.89.054322
Citations: PlumX Metrics


2014SC04      Phys.Rev. C 89, 037301 (2014)

A.Scheikh-Obeid, S.Aslanidou, J.Birkhan, A.Krugmann, P.von Neumann-Cosel, N.Pietralla, I.Poltoratska, V.Yu.Ponomarev

B(E2) strength ratio of one-phonon 2+ states of 94Zr from electron scattering at low momentum transfer

NUCLEAR REACTIONS 94Zr(e, e'), E=71 MeV; measured electron spectra at four angles at S-DALINAC facility; deduced levels, B(E2) for second 2+ state. PWBA analysis. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.89.037301
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Data from this article have been entered in the XUNDL database. For more information, click here.


2014TA05      Eur.Phys.J. A 50, 28 (2014)

A.Tamii, P.von Neumann-Cosel, I.Poltoratska

Electric dipole response of 208Pb from proton inelastic scattering: Constraints on neutron skin thickness and symmetry energy

NUCLEAR REACTIONS 208Pb(pol p, p'), E=295 MeV; measured Ep, Ip(θ), proton polarization using DSR (dipole-spin rotation) magnet; deduced σ(θ). 208Pb deduced B(E1) strength distribution, dipole polarizability, neutron skin thickness, constraints on symmetry energy. Compared with other results.

doi: 10.1140/epja/i2014-14028-7
Citations: PlumX Metrics


2013SC01      Phys.Rev. C 87, 014337 (2013)

A.Scheikh-Obeid, O.Burda, M.Chernykh, A.Krugmann, P.von Neumann-Cosel, N.Pietralla, I.Poltoratska, V.Yu.Ponomarev, C.Walz

E2 strengths and transition radii difference of one-phonon 2+ states of 92Zr from electron scattering at low momentum transfer

NUCLEAR REACTIONS 92Zr(e, e'), E=63 MeV; measured E(e), I(e), σ(θ) using LINTOTT spectrometer at S-DALINAC accelerator facility. 92Zr; deduced levels, J, π, B(E2) and B(E3) for first two 2+ and first 3- states, one-phonon symmetric and mixed-symmetric 2+ states. DWBA and PWBA analyses. Comparison with quasiparticle-phonon model (QPM) calculations.

doi: 10.1103/PhysRevC.87.014337
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Data from this article have been entered in the XUNDL database. For more information, click here.


2012PO07      Phys.Rev. C 85, 041304 (2012)

I.Poltoratska, P.von Neumann-Cosel, A.Tamii, T.Adachi, C.A.Bertulani, J.Carter, M.Dozono, H.Fujita, K.Fujita, Y.Fujita, K.Hatanaka, M.Itoh, T.Kawabata, Y.Kalmykov, A.M.Krumbholz, E.Litvinova, H.Matsubara, K.Nakanishi, R.Neveling, H.Okamura, H.J.Ong, B.Ozel-Tashenov, V.Yu.Ponomarev, A.Richter, B.Rubio, H.Sakaguchi, Y.Sakemi, Y.Sasamoto, Y.Shimbara, Y.Shimizu, F.D.Smit, T.Suzuki, Y.Tameshige, J.Wambach, M.Yosoi, J.Zenihiro

Pygmy dipole resonance in 208Pb

NUCLEAR REACTIONS 208Pb(p, p'), E=295 MeV; measured Ep, Ip, σ(θ). 208Pb; deduced levels, J, π, PDR, σ(E1), σ(M1), B(E1). Multipole decomposition analysis based on DWBA calculations. Comparison with quasiparticle-phonon model (QPM), relativistic time-blocking approximation (RTBA), and shell model calculations. Separation of PDR and GDR strength with Coulomb-nuclear interference.

doi: 10.1103/PhysRevC.85.041304
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2374. Data from this article have been entered in the XUNDL database. For more information, click here.


2012US02      J.Phys.:Conf.Ser. 337, 012034 (2012)

I.Usman, Z.Buthelezi, J.Carter, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Kalmykov, P.von Neumann-Cosel, R.Neveling, I.Poltoratska, A.Richter, A.Shevchenko, E.Sideras-Haddad, F.D.Smit, J.Wambach

2+ level densities in 40Ca extracted from high energy-resolution (p, p') experiments

NUCLEAR REACTIONS 40Ca(p, p'), E=200 MeV; measured reaction products; deduced σ(θ, E), autocorrelation function, level density with specified J, π; calculated density with specified J, π using BSFG, HFB and HF-BCS.

doi: 10.1088/1742-6596/337/1/012034
Citations: PlumX Metrics


2011HE24      J.Phys.:Conf.Ser. 312, 092029 (2011)

A.M.Heilmann, P.von Neumann-Cosel, A.Tamil, T.Adachi, C.Bertulani, J.Carter, H.Fujuita, Y.Fujita, K.Hatanaka, K.Hirota, On.H.Jin, T.Kawabata, A.Krugmann, H.Matsubara, E.Litvinova, R.Neveling, H.Okamura, B.Ozel-Tashenov, I.Poltoratska, V.Yu.Ponomarev, A.Richter, H.Sakaguchi, Y.Sakemi, Y.Sasamoto, Y.Shimizu, Y.Shimbara, F.D.Smit, T.Suzuki, Y.Tameshige, Y.Yasuda, M.Yosoi, J.Zenihiro

Electric dipole response in 120Sn

NUCLEAR REACTIONS 120Sn(polarized p, p'), E=295 MeV; measured Ep, Ip(θ=forward), proton polarization using high-resolution Grand Raiden magnetic spectrometer; deduced B(E1) strength distribution. Data of published DALINAC-S experiment with (γ, γ') used to extract B(E1) strengths.

doi: 10.1088/1742-6596/312/9/092029
Citations: PlumX Metrics


2011NE16      Nucl.Instrum.Methods Phys.Res. A 654, 29 (2011)

R.Neveling, H.Fujita, F.D.Smit, T.Adachi, G.P.A.Berg, E.Z.Buthelezi, J.Carter, J.L.Conradie, M.Couder, R.W.Fearick, S.V.Fortsch, D.T.Fourie, Y.Fujita, J.Gorres, K.Hatanaka, M.Jingo, A.M.Krumbholz, C.O.Kureba, J.P.Mira, S.H.T.Murray, P.Von Neumann-Cosel, S.O'Brien, P.Papka, I.Poltoratska, A.Richter, E.Sideras-Haddad, J.A.Swartz, A.Tamii, I.T.Usman, J.J.Van Zyl

High energy-resolution zero-degree facility for light-ion scattering and reactions at iThemba LABS

NUCLEAR REACTIONS 40Ca(p, p'), E=200 MeV; measured products, 40Ca; deduced σ(θ). Data were imported from EXFOR entry D0706.

doi: 10.1016/j.nima.2011.06.077
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0706.


2011TA18      Phys.Rev.Lett. 107, 062502 (2011)

A.Tamii, I.Poltoratska, P.von Neumann-Cosel, Y.Fujita, T.Adachi, C.A.Bertulani, J.Carter, M.Dozono, H.Fujita, K.Fujita, K.Hatanaka, D.Ishikawa, M.Itoh, T.Kawabata, Y.Kalmykov, A.M.Krumbholz, E.Litvinova, H.Matsubara, K.Nakanishi, R.Neveling, H.Okamura, H.J.Ong, B.Ozel-Tashenov, B.Rubio, H.Sakaguchi, Y.Sakemi, Y.Sasamoto, Y.Shimbara, Y.Shimizu, V.Yu.Ponomarev, A.Richter, F.D.Smit, T.Suzuki, Y.Tameshige, J.Wambach, R.Yamada, M.Yosoi, J.Zenihiro

Complete Electric Dipole Response and the Neutron Skin in 208Pb

NUCLEAR REACTIONS 208Pb(p, p'), E<20 MeV; measured reaction products, proton spectra; deduced electric dipole (E1) and spin magnetic dipole (M1) modes, E1 strength distribution, neutron skin thickness. Comparison with experimental data.

doi: 10.1103/PhysRevLett.107.062502
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2355.


2011US03      Phys.Rev. C 84, 054322 (2011)

I.Usman, Z.Buthelezi, J.Carter, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Kalmykov, P.von Neumann-Cosel, R.Neveling, I.Poltoratska, A.Richter, A.Shevchenko, E.Sideras-Haddad, F.D.Smit, J.Wambach

Level density of 2+ states in 40Ca from high-energy-resolution (p, p') experiments

NUCLEAR REACTIONS 40Ca(p, p'), E=200 MeV; measured E(p), I(p), double differential σ, σ(θ); deduced excitation energy, level density for 2+ states in the ISGQR region; analyzed fine structure of ISGQR. Fluctuation analysis. Comparison with backshifted Fermi gas and microscopic HF-BCS and HFB models.

doi: 10.1103/PhysRevC.84.054322
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0687.


2010SC32      J.Phys.:Conf.Ser. 205, 012040 (2010)

A.Scheikh-Obeid, O.Burda, M.Chernykh, A.Krugmann, P.von Neumann-Cosel, N.Pietralla, I.Poltoratska, V.Ponomarev, C.Walz

One-phonon excitations in 92Zr from electron scattering

NUCLEAR REACTIONS 92Zr(e, e'), E=63 MeV; measured Eβ, Iβ(θ); deduced B(E2), B(E3), σ(θ, E*) vs momentum, σ(θ) vs momentum.

doi: 10.1088/1742-6596/205/1/012040
Citations: PlumX Metrics


2008RY01      Phys.Rev.Lett. 100, 172501 (2008)

N.Ryezayeva, H.Arenhovel, O.Burda, A.Byelikov, M.Chernykh, J.Enders, H.W.Griesshammer, Y.Kalmykov, P.von Neumann-Cosel, B.Ozel, I.Poltoratska, I.Pysmenetska, C.Rangacharyulu, S.Rathi, A.Richter, G.Schrieder, A.Shevchenko, O.Yevetska

Measurement of the Reaction 2H(e, e') at 180 degrees Close to the Deuteron Breakup Threshold

NUCLEAR REACTIONS 2H(e, e'), E=27.8, 74.0 MeV; measured inclusive elastic cross sections; deduced deuteron breakup cross sections.

doi: 10.1103/PhysRevLett.100.172501
Citations: PlumX Metrics


2007KA46      Nucl.Phys. A788, 136c (2007)

Y.Kalmykov, K.Langanke, G.Martinez-Pinedo, D.Mocelj, P.von Neumann-Cosel, I.Poltoratska, V.Yu.Ponomarev, A.Richter, A.Shevchenko, J.Wambach

Spin- and Parity-Resolved Level Densities from High-Resolution Hadron and Electron Scattering Studies of Giant Resonances

NUCLEAR REACTIONS 90Zr(3He, t), E=140 MeV/nucleon; 90Zr(e, e'), E=42.5, 66.4, 82.3 MeV; 90Zr(p, p'), E=200 MeV; analyzed excitation energy spectra. 90Zr, 90Nb deduced Gamow-Teller resonance and GQR energies and level densities. 58Ni(3He, t), (e, e'), (p, p'), E not given; analyzed excitation energy spectra. 58Ni, 58Cu deduced level densities. Discrete wavelet transform and fluctuation analysis, back-shifted Fermi gas and Hartree-Fock-BCS models.

doi: 10.1016/j.nuclphysa.2007.01.059
Citations: PlumX Metrics


2007OZ04      Nucl.Phys. A788, 385c (2007)

B.Ozel, J.Enders, P.von Neumann-Cosel, I.Poltoratska, A.Richter, D.Savran, S.Volz, A.Zilges

Systematics of the pygmy dipole resonance in stable tin isotopes from resonant photon scattering

NUCLEAR REACTIONS 112,120Sn(γ, γ'), E≈9-11 MeV bremsstrahlung; measured Eγ, Iγ. 112Sn deduced B(E1) strength distribution. Sn analyzed B(E1).

doi: 10.1016/j.nuclphysa.2007.01.069
Citations: PlumX Metrics


2007TA27      Nucl.Phys. A788, 53c (2007)

A.Tamii, T.Adachi, J.Carter, M.Dozono, H.Fujita, Y.Fujita, K.Hatanaka, H.Hashimoto, T.Kaneda, M.Itoh, T.Kawabata, H.Matsubara, K.Nakanishi, P.von Neumann-Cosel, H.Okamura, A.Perez, I.Poltoratska, V.Ponomarev, L.Popescu, A.Richter, B.Rubio, H.Sakaguchi, Y.Sakemi, Y.Sasamoto, Y.Shimbara, Y.Shimizu, F.D.Smit, Y.Tameshige, M.Yosoi, J.Zenihiro, K.Zimmer

Study of M1 excitations by high-resolution proton inelastic scattering experiment at forward angles

NUCLEAR REACTIONS 26Mg, 48Ca(p, p'), E=295 MeV; measured excitation energy spectrum. 12C(p, p'), E=295 MeV; calculated σ(θ). DWIA method.

doi: 10.1016/j.nuclphysa.2007.01.048
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2150.


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