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NSR database version of April 26, 2024.

Search: Author = G.Friessner

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2022HA24      Phys.Rev. C 106, 024326 (2022)

A.Harter, L.Knafla, G.Friessner, G.Hafner, J.Jolie, A.Blazhev, A.Dewald, F.Dunkel, A.Esmaylzadeh, C.Fransen, V.Karayonchev, K.Lawless, M.Ley, J.-M.Regis, K.O.Zell

Lifetime measurements in the tungsten isotopes ^{176, 178, 180}W

NUCLEAR REACTIONS ¹⁶⁴Dy(¹⁶O, 4n)¹⁷⁶W, E=80 MeV; ¹⁷²Yb(⁹Be, 3n)¹⁷⁸W, E=40 MeV; ¹⁸¹Ta(p, 2n)¹⁸⁰W, E=16 MeV; measured E(ce), Eγ, (ce)γ-coin, (ce)γγ-coin, γγ-coin, level T_1/2 by (ce)γ(t) fast-timing method, and by recoil-distance Doppler-shift method using Cologne iron-free Orange spectrometer for conversion electrons, Cologne HORUS spectrometer for γ radiation, and Cologne coincidence plunger setup at the 10 MV FN Tandem accelerator of IKP-Cologne. ^176,178,180W; deduced levels, J, π, T_1/2, B(E2) of yrast positive-parity states up to 10+ for ¹⁷⁶W and up to 8+ for ^178,180W. Comparison with previous available experimental results, and with IBM-1 model calculations. Experimental and theoretical (by IBM-1 model with SU(3) and X(5) limits) systematics of excitation energies, deformation parameter β, quadrupole moment, B(E2), E(first 4+)/E(first 2+), B(E2)(first 4+)/B(E2)(first 2+) for ^{168,170,172,174,176,178,180,182,184,186}W.

doi: 10.1103/PhysRevC.106.024326
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2016FU09      Phys.Rev. C 94, 034318 (2016)

B.Fu, M.Seidlitz, A.Blazhev, M.Bouhelal, F.Haas, P.Reiter, K.Arnswald, B.Birkenbach, C.Fransen, G.Friessner, A.Hennig, H.Hess, R.Hirsch, L.Lewandowski, D.Schneiders, B.Siebeck, T.Steinbach, T.Thomas, A.Vogt, A.Wendt, K.Wolf, K.O.Zell

γ-ray spectroscopy of ³³P and ³³S after fusion-evaporation reactions

NUCLEAR REACTIONS ²⁶Mg(¹³C, npα), (¹³C, 2nα), E=46 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ) level half-lives by DSAM using HORUS array at Cologne tandem accelerator facility. ³³P, ³³S; deduced levels, J, π, γ-ray branching ratios, multipolarity and mixing ratios for selected γ rays in ³³P. Comparison with truncated p-sd-pf shell model calculations using the PSDPF interaction.

doi: 10.1103/PhysRevC.94.034318
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Data from this article have been entered in the XUNDL database. For more information, click here.

2012NI09      Phys.Rev. C 85, 054321 (2012)

M.Niikura, B.Mouginot, S.Franchoo, I.Matea, I.Stefan, D.Verney, F.Azaiez, M.Assie, P.Bednarczyk, C.Borcea, A.Burger, G.Burgunder, A.Buta, L.Caceres, E.Clement, L.Coquard, G.de Angelis, G.de France, F.de Oliveira Santos, A.Dewald, A.Dijon, Z.Dombradi, E.Fiori, C.Fransen, G.Friessner, L.Gaudefroy, G.Georgiev, S.Grevy, M.Hackstein, M.N.Harakeh, F.Ibrahim, O.Kamalou, M.Kmiecik, R.Lozeva, A.Maj, C.Mihai, O.Moller, S.Myalski, F.Negoita, D.Pantelica, L.Perrot, Th.Pissulla, F.Rotaru, W.Rother, J.A.Scarpaci, C.Stodel, J.C.Thomas, P.Ujic

First direct lifetime measurement of the 2₁⁺ state in ^{72, 74}Zn: New evidence for a shape transition between N=40 and N=42 close to Z=28

NUCLEAR REACTIONS ⁹Be(⁷³Zn, X), (⁷⁴Zn, X), (⁷²Cu, X), [^73,74Zn, ⁷²Cu secondary cocktail beam from ⁹Be(⁷⁶Ge, X), E=60 MeV/nucleon primary reaction], E not given; measured Eγ, Iγ, half-lives of first 2+ states by RDDS method using LISE spectrometer, plunger device, and EXOGAM array at GANIL facility. ^72,74Zn; deduced B(E2), β₂; discussed static quadrupole moments for first 2+ states. Systematics of level energies, B(E2), Q(2+), β₂, occupation numbers for even-even N=32-48, Z=28-38 nuclei. Comparison of B(E2) values for first 2+ states in ^72,74Zn with previous studies and shell-model calculations.

doi: 10.1103/PhysRevC.85.054321
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Data from this article have been entered in the XUNDL database. For more information, click here.

2011NI03      Acta Phys.Pol. B42, 537 (2011)

M.Niikura, B.Mouginot, F.Azaiez, G.De Angelis, M.Assie, P.Bednarczyk, C.Borcea, A.Burger, G.Burgunder, A.Buta, L.Caceres, E.Clement, L.Coquard, G.De France, F.De Oliveira, A.Dewald, A.Dijon, Z.Dombradi, E.Fiori, S.Franchoo, C.Fransen, G.Friessner, L.Gaudefroy, G.Georgiev, S.Grevy, M.Hackstein, M.N.Harakeh, F.Ibrahim, M.Kmiecik, R.Lozeva, A.Maj, I.Matea, C.Mihai, O.Moller, S.Myalski, F.Negoita, D.Pantelica, L.Perrot, T.Pissula, F.Rotaru, W.Rother, J.A.Scarpaci, I.Stefan, C.Stodel, J.C.Thomas, P.Ujic, D.Verney

Lifetime Measurement of 2⁺₁ State in ⁷⁴Zn with Differential Plunger Technique

NUCLEAR REACTIONS ⁹Be(⁷⁶Ge, X)⁷³Zn/⁷⁴Zn, E=60 MeV/nucleon; measured reaction fragments, Eγ, Iγ; deduced B(E2), γ-ray yields.

doi: 10.5506/APhysPolB.42.537
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2011RO53      Nucl.Instrum.Methods Phys.Res. A654, 196 (2011)

W.Rother, A.Dewald, G.Pascovici, C.Fransen, G.Friessner, M.Hackstein, G.Ilie, H.Iwasaki, J.Jolie, B.Melon, P.Petkov, M.Pfeiffer, Th.Pissulla, K.-O.Zell, U.Jakobsson, R.Julin, P.Jones, S.Ketelhut, P.Nieminen, P.Peura, P.Rahkila, J.Uusitalo, C.Scholey, S.Harissopulos, A.Lagoyannis, T.Konstantinopoulos, T.Grahn, D.Balabanski

A new recoil distance technique using low energy coulomb excitation in inverse kinematics

NUCLEAR REACTIONS Fe(¹²⁸Xe, ¹²⁸Xe'), E=3-10 MeV/nucleon; measured Eγ, Iγ, γγ-coin. ¹²⁸Xe; deduced lifetimes, B(E2). Recoil Distance Doppler Shift technique, comparison with previous values.

doi: 10.1016/j.nima.2011.05.075
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Data from this article have been entered in the XUNDL database. For more information, click here.

2007OR01      Phys.Rev. C 75, 014303 (2007)

J.N.Orce, C.Fransen, A.Linnemann, C.J.McKay, S.R.Lesher, N.Pietralla, V.Werner, G.Friessner, C.Kohstall, D.Mucher, H.H.Pitz, M.Scheck, C.Scholl, F.Stedile, N.Warr, S.Walter, P.von Brentano, U.Kneissl, M.T.McEllistrem, S.W.Yates

Lifetime measurements in ⁹³Nb from photon and inelastic neutron scattering

NUCLEAR REACTIONS ⁹³Nb(γ, γ'), E=2.75 MeV bremsstrahlung; measured Eγ, Iγ. ⁹³Nb(n, n'γ), E=2.1, 2.6 MeV; measured Eγ, Iγ, DSA. ⁹⁴Zr(p, 2n), E=11.5-19 MeV; measured Eγ, Iγ, γγ-coin, angular correlations. ⁹³Nb deduced levels, J, π, δ, T_1/2.

doi: 10.1103/PhysRevC.75.014303
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Data from this article have been entered in the XUNDL database. For more information, click here.

2007WA08      Phys.Rev. C 75, 034301 (2007)

S.Walter, F.Stedile, J.J.Carroll, C.Fransen, G.Friessner, N.Hollmann, H.von Garrel, J.Jolie, O.Karg, F.Kappeler, U.Kneissl, C.Kohstall, P.von Neumann-Cosel, A.Linnemann, D.Mucher, N.Pietralla, H.H.Pitz, G.Rusev, M.Scheck, C.Scholl, R.Schwengner, V.Werner, K.Wisshak

Photon scattering experiments on the quasistable, odd-odd mass nucleus ¹⁷⁶Lu

NUCLEAR REACTIONS ¹⁷⁶Lu(γ, γ'), E=2.3, 3.1 MeV bremsstrahlung; measured Eγ, Iγ. ¹⁷⁶Lu deduced transitions, B(M1), B(E1), strength distribution.

doi: 10.1103/PhysRevC.75.034301
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetG0056. Data from this article have been entered in the XUNDL database. For more information, click here.

2006VO04      Phys.Rev. C 73, 054315 (2006)

H.von Garrel, P.von Brentano, C.Fransen, G.Friessner, N.Hollmann, J.Jolie, F.Kappeler, L.Kaubler, U.Kneissl, C.Kohstall, L.Kostov, A.Linnemann, D.Mucher, N.Pietralla, H.H.Pitz, G.Rusev, M.Scheck, K.D.Schilling, C.Scholl, R.Schwengner, F.Stedile, S.Walter, V.Werner, K.Wisshak

Low-lying E1, M1, and E2 strength distributions in ^{124, 126, 128, 129, 130, 131, 132, 134, 136}Xe: Systematic photon scattering experiments in the mass region of a nuclear shape or phase transition

NUCLEAR REACTIONS ^{124,126,128,129,130,131,132,134,136}Xe(γ, γ'), E=4.1 MeV bremsstrahlung; measured Eγ, Iγ. ^{124,126,128,129,130,131,132,134,136}Xe deduced levels, J, π, branching ratios, B(E1), B(M1).

doi: 10.1103/PhysRevC.73.054315
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Data from this article have been entered in the XUNDL database. For more information, click here.