NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = V.Anagnostatou Found 15 matches. 2016WE01 Phys.Rev. C 93, 034323 (2016) V.Werner, N.Cooper, J.-M.Regis, M.Rudigier, E.Williams, J.Jolie, R.B.Cakirli, R.F.Casten, T.Ahn, V.Anagnostatou, Z.Berant, M.Bonett-Matiz, M.Elvers, A.Heinz, G.Ilie, D.Radeck, D.Savran, M.K.Smith Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei RADIOACTIVITY 168Ta(EC)[from 159Tb(16O, 7n), E=130 MeV]; 174Re(EC)[from 169Tm(12C, 7n), E=115 MeV]; 152Eu(EC); measured Eγ, γγ-coin, γγ(t) using fast timing system at WNSL-Yale University. 168Hf, 174W; deduced levels, half-lives and B(E2) of first 2+ states. Comparison with previous experimental results. Systematics and analysis in terms of differentials of B(E2) values of the first 2+ states for 162,164,166,168,170,172,174,176,178Hf, 164,166,168,170,172,174,176,178,180W.
doi: 10.1103/PhysRevC.93.034323
2015HE32 Phys.Rev. C 92, 064317 (2015) A.Hennig, T.Ahn, V.Anagnostatou, A.Blazhev, N.Cooper, V.Derya, M.Elvers, J.Endres, P.Goddard, A.Heinz, R.O.Hughes, G.Ilie, M.N.Mineva, P.Petkov, S.G.Pickstone, N.Pietralla, D.Radeck, T.J.Ross, D.Savran, M.Spieker, V.Werner, A.Zilges Collective excitations of 96Ru by means of (p, p'γ) experiments NUCLEAR REACTIONS 96Ru(p, p'), E=8.4, 7 MeV; measured Ep, Ip, proton angular distributions, Eγ, Iγ, pγ- and γγ-coin, γγ(θ) using YRAST ball spectrometer at WNSL-Yale accelerator facility, level half-lives by DSAM using HORUS γ-ray spectrometer at IKP-Cologne accelerator facility. 96Ru; deduced levels, J, π, multipolarity, mixing ratios, configuration, B(E2), B(M1), B(E1), one-phonon mixed-symmetry excitations of octupole and hexadecapole character, two-phonon mixed-symmetry quintuplet. Comparison with sdg-IBM-2 and shell-model calculations. NUCLEAR STRUCTURE 96Ru; calculated levels, J, π, B(M1), B(E2) using sdg-IBM-2 and shell-model. Comparison with experimental data.
doi: 10.1103/PhysRevC.92.064317
2014HE28 Phys.Rev. C 90, 051302 (2014) A.Hennig, M.Spieker, V.Werner, T.Ahn, V.Anagnostatou, N.Cooper, V.Derya, M.Elvers, J.Endres, P.Goddard, A.Heinz, R.O.Hughes, G.Ilie, M.N.Mineva, P.Petkov, S.G.Pickstone, N.Pietralla, D.Radeck, T.J.Ross, D.Savran, A.Zilges Mixed-symmetry octupole and hexadecapole excitations in the N=52 isotones NUCLEAR REACTIONS 96Ru(p, p'), E=7.0, 8.4 MeV; measured Ep, Ip, Eγ, Iγ, pγ-coin, γγ(θ), level half-life by centroid-shift method using YRAST Ball spectrometer and Si detectors at Yale ESTU Tandem accelerator facility, and HORUS γ-detector array and particle-detector array SONIC at Cologne FN Tandem accelerator facility. 96Ru; deduced levels, J, π, branching ratios, multipole mixing ratios, B(M1), B(E2), mixed-symmetry states (MSS) of octupole and hexadecapole character. Evidence for one-phonon mixed-symmetry character of the second 3(-) and 4+ states. Comparison with sdg-IBM-2 model calculations.
doi: 10.1103/PhysRevC.90.051302
2013BU05 Phys.Rev. C 87, 044337 (2013), Pub.Note Phys.Rev. C 88, 019903 (2013) M.Bunce, P.H.Regan, V.Werner, C.W.Beausang, V.Anagnostatou, M.Bowry, R.J.Casperson, D.Chen, N.Cooper, P.M.Goddard, R.O.Hughes, G.Ilie, P.J.R.Mason, B.Pauerstein, M.W.Reed, T.J.Ross, E.C.Simpson High-spin study of the shell model nucleus 88Y49 NUCLEAR REACTIONS 74Ge(18O, 3np)60, E=60 MeV; 76Ge(18O, 5np), E=90 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) using the YRAST ball at WNSL, Yale facility. 88Y; deduced high-spin levels, J, π, bands, configuration. Comparison with truncated valence space shell-model calculations. NUCLEAR STRUCTURE 88Y; calculated levels, J, π, proton occupancy, configuration. Shell model using computer code NUSHELLX.
doi: 10.1103/PhysRevC.87.044337
2013GU23 Phys.Rev. C 88, 014301 (2013) G.Gurdal, E.A.Stefanova, P.Boutachkov, D.A.Torres, G.J.Kumbartzki, N.Benczer-Koller, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, T.Ahn, V.Anagnostatou, C.Bernards, M.Elvers, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, E.Williams Measurements of g(41+, 22+)in 70, 72, 74, 76Ge: Systematics of low-lying structures in 30 ≤ Z ≤ 40 and 30 ≤ N ≤ 50 nuclei NUCLEAR REACTIONS C, Mg(70Ge, 70Ge'), (72Ge, 72Ge'), (74Ge, 74Ge'), (76Ge, 76Ge'), E=165-225 MeV; measured Eγ, precession angles, angular correlations; deduced g factors. Natural C or Mg targets with mid layer of Gd or Fe and backing of Ta and Cu. NUCLEAR MOMENTS 70,72,74,76Ge; measured g factors of first and second 2+ and first 4+ states using transient field (TF) technique following Coulomb excitation in inverse kinematics at WNSL-Yale facility. Systematics of g factors for neighboring nuclides of even-even N=32-50, Z=30-38. Comparison with large-scale shell-model, collective models, and IBA-II, and with previous experimental studies. No evidence for shell closure for neutrons at N=38 or N=40.
doi: 10.1103/PhysRevC.88.014301
2013MC01 Phys.Rev. C 87, 014307 (2013) E.A.McCutchan, C.J.Lister, T.Ahn, V.Anagnostatou, N.Cooper, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner Shape coexistence and high-K states in 74Se populated following the β decay of 74Br RADIOACTIVITY 74Br(EC), (β+)[from 60Ni(16O, pn), E=52 MeV]; measured Eγ, Iγ, γγ-coin, γγ(θ) using YRAST Ball Clover detectors at WNSL, Yale facility. 74Se; deduced levels, J, π, branching ratios, β strength function, multipolarity, mixing ratio, configuration, B(E2), shape coexistence. Possible K=2 excitation in the second minimum.
doi: 10.1103/PhysRevC.87.014307
2012AN17 Appl.Radiat.Isot. 70, 1321 (2012) V.Anagnostatou, P.H.Regan, V.Werner, F.R.Xu, G.X.Dong, M.R.Bunce, D.McCarthy, L.Bettermann, C.Boniwell, R.Casperson, R.Chevrier, N.Cooper, A.Heinz, P.Paurstein, D.Radeck, M.K.Smith, E.Williams Electromagnetic transition rates in 100, 101Pd using the Recoil Doppler Shift Technique NUCLEAR REACTIONS 24Mg(80Se, xn)100Pd/101Pd, E=268 MeV; measured reaction products, Eγ, Iγ; deduced first excited state lifetime, B(E2). RDDS method, comparison with total Routhian surface calculations.
doi: 10.1016/j.apradiso.2011.12.005
2012BU18 J.Phys.:Conf.Ser. 381, 012068 (2012) M.Bunce, P.H.Regan, V.Werner, V.Anagnostatou, C.W.Beausang, M.Bowry, R.J.Casperson, D.Chen, N.Cooper, P.Goddard, R.O.Hughes, G.Ilie, P.J.R.Mason, B.Pauerstein, M.W.Reed, T.J.Ross A shell model study of the high spin states of 88Y NUCLEAR REACTIONS 74Ge(18O, 3np), E=60, 65, 70 MeV;76Ge(18O, 5np), E=90 MeV; measured prompt, delayed Eγ, Iγ(θ), γγ-coin using YRAST ball detector array consisting of 10 Compton-suppressed HPGe and including Doppler shift corrections, γ polarization using Compton polarimeter; calculated σ, σ(l) using PACE4, levels, J, π using NuShell code. 88Y deduced levels, J, π, γ transitions.
doi: 10.1088/1742-6596/381/1/012068
2012KU14 Phys.Rev. C 85, 044322 (2012) G.J.Kumbartzki, K.-H.Speidel, N.Benczer-Koller, D.A.Torres, Y.Y.Sharon, L.Zamick, S.J.Q.Robinson, P.Maier-Komor, T.Ahn, V.Anagnostatou, Ch.Bernards, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, E.Williams Structure of the Sr-Zr isotopes near and at the magic N=50 shell from g-factor and lifetime measurements in 8840Zr and 84, 86, 3888Sr NUCLEAR REACTIONS 12C(84Sr, X)84Sr/86Sr/88Sr/88Zr, E=243-285 MeV; measured Eγ, Iγ, (12C)γ-, αγ-, γγ-coin, level half-lives by DSA, g factors. 84,86,88Sr, 88Zr; deduced levels, J, π, B(E2). Systematics of B(E2) values for first 2+ states in even-even N=40-62 Sr and Zr nuclei. NUCLEAR MOMENTS 88Zr, 84,86,88Sr; measured g factors of 2+ and first 4+ states using transient field technique in inverse kinematics. Comparison with previous studies and with shell model calculations. Systematics of g factors of first 2+ states in even-even N=42-62 Sr and Zr nuclei.
doi: 10.1103/PhysRevC.85.044322
2012RA03 Phys.Rev. C 85, 014301 (2012) D.Radeck, V.Werner, G.Ilie, N.Cooper, V.Anagnostatou, T.Ahn, L.Bettermann, R.J.Casperson, R.Chevrier, A.Heinz, J.Jolie, D.McCarthy, M.K.Smith, E.Williams Simultaneous deorientation and lifetime measurement in 98Ru using the recoil distance Doppler shift method in inverse Coulomb excitation NUCLEAR REACTIONS 24Mg(98Ru, 98Ru'), E=300 MeV; measured Eγ, Iγ, particle spectra, angular distribution and deorientation, particle-γ coin, half-lives of first 2+ and 4+ states by Recoil distance Doppler shift (RDDS) method using New Yale Plunger Device and YRAST ball array. Coulomb excitation in inverse kinematics. 98Ru; deduced levels, B(E2) values. Comparison with theoretical calculations and previous works, systematics of B(E2) values for first 2+ and 4+ states in A=96-122 (even) Ru, and N=54, Z=40-48 (even) nuclei.
doi: 10.1103/PhysRevC.85.014301
2012TO01 Phys.Rev. C 85, 017305 (2012) D.A.Torres, G.J.Kumbartzki, Y.Y.Sharon, L.Zamick, B.Manning, N.Benczer-Koller, K.-H.Speidel, T.Ahn, V.Anagnostatou, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner, G.Gurdal, M.J.Taylor, P.Maier-Komor, M.Hjorth-Jensen, S.J.Q.Robinson Measurement of the 96Ru g(41+) factor and its nuclear structure interpretation NUCLEAR REACTIONS 12C(96Ru, 96Ru'), E=343, 353 MeV; measured 12C spectra, Eγ, Iγ, (12C)g-coin, (12C)γ(θ), precession angle in transient magnetic field, half-life by DSAM. 96Ru; deduced level, half-life of first 2+, g factors of first 2+ and 4+ states, B(E2). Coulomb excitation in inverse kinematics. Comparison with large-scale shell-model calculations. NUCLEAR MOMENTS 96Ru; measured g factors of first 2+ and 4+ states by transient magnetic field technique in inverse kinematics.
doi: 10.1103/PhysRevC.85.017305
2011AN04 Acta Phys.Pol. B42, 807 (2011) V.Anagnostatou, P.H.Regan, M.R.Bunce, D.McCarthy, V.Werner, T.Ahn, R.J.Casperson, R.Chevrier, N.Cooper, A.Heinz, G.Ilie, M.K.Smith, E.Williams, L.Bettermann, D.Radeck, C.W.Beausang, C.Boniwell, B.Pauerstein Measurements of Picosecond Lifetimes in the Transitional Nucleus 100Pd Using the RDDM in Inverse Kinematics NUCLEAR REACTIONS 24Mg(80Se, 4n)100Pd, E=268 MeV; measured fusion-evaporation products, Eγ, Iγ; deduced weak deformation, energies, J, π, B(E2), yrast sequence.
doi: 10.5506/APhysPolB.42.807
2011EL09 Phys.Rev. C 84, 054323 (2011) M.Elvers, S.Pascu, T.Ahmed, T.Ahn, V.Anagnostatou, N.Cooper, C.Deng, J.Endres, P.Goddard, A.Heinz, G.Ilie, E.Jiang, C.Kuppersbusch, D.Radeck, D.Savran, N.Shenkov, V.Werner, A.Zilges Investigation of octupole vibrational states in 150Nd via inelastic proton scattering (p, p'γ) NUCLEAR REACTIONS 150Nd(p, p'), E=10.9 MeV; measured Eγ, Iγ, γγ-, pγ-coin using YRAST Ball at Yale. 150Nd; deduced levels, J, π, branching ratios, B(E1) ratios, B(E2) octupole and positive-parity bands. Comparison with interacting boson approximation in sdpf boson space.
doi: 10.1103/PhysRevC.84.054323
2011TO09 Phys.Rev. C 84, 044327 (2011) D.A.Torres, G.J.Kumbartzki, Y.Y.Sharon, L.Zamick, B.Manning, N.Benczer-Koller, G.Gurdal, K.-H.Speidel, M.Hjorth-Jensen, P.Maier-Komor, S.J.Q.Robinson, T.Ahn, V.Anagnostatou, M.Elvers, P.Goddard, A.Heinz, G.Ilie, D.Radeck, D.Savran, V.Werner First g-factor measurements of the 21+ and the 41+ states of radioactive 100Pd NUCLEAR REACTIONS 12C(96Ru, 8Be), E=350 MeV; measured particle spectra, Eγ, Iγ, αγ-, γγ-coin, γγ(θ), precession angle. 100Pd; deduced levels, J, π, g factors, B(E2) values. NUCLEAR MOMENTS 100Pd; measured g-factors of first 2+, 4+ states by transient magnetic field technique in inverse kinematics. Comparison with large-scale shell-model calculations and collective-model predictions.
doi: 10.1103/PhysRevC.84.044327
2011WE08 J.Phys.:Conf.Ser. 312, 092062 (2011) V.Werner, N.Cooper, M.Bonett-Matiz, E.Williams, J.-M.Regis, M.Rudigier, T.Ahn, V.Anagnostatou, Z.Berant, M.Bunce, M.Elvers, A.Heinz, G.Ilie, J.Jolie, D.Radeck, D.Savran, M.Smith Excited State Lifetime Measurements in Rare Earth Nuclei with Fast Electronics RADIOACTIVITY 174Re(EC) [from 169Tm(12C, 7n)174Re, E=115 MeV]; measured decay products, Eγ, Iγ; deduced lifetimes, B(E2). Comparison with IBA model and systematics. RADIOACTIVITY 168Ta(EC) [from 159Tb(16O, 7n)168Ta, E=130 MeV]; measured decay products, Eγ, Iγ; deduced lifetimes, B(E2). Comparison with IBA model and systematics.
doi: 10.1088/1742-6596/312/9/092062
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