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NSR database version of April 25, 2024.

Search: Author = I.Poltoratska

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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
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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
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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 α_D, 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
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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
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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
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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, 120}Sn

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