Dipole strength distribution of Ge74

Massarczyk, R.; Schwengner, R.; Bernstein, L. A.; Anders, M.; Bemmerer, D.; Beyer, R.; Elekes, Z.; Hannaske, R.; Junghans, A. R.; Kogler, T.; Roder, M.; Schmidt, K.; Wagner, A.; Wagner, L.

doi:10.1103/PhysRevC.92.044309

Title: Dipole strength distribution of ${}^{74}{Ge}$

Journal Article · Mon Oct 12 00:00:00 EDT 2015 · Physical Review. C. Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.92.044309· OSTI ID:1454838

Massarczyk, R. ^[1]; Schwengner, R. ^[2]; Bernstein, L. A. ^[3]; Anders, M. ^[4]; Bemmerer, D. ^[2]; Beyer, R. ^[2]; Elekes, Z. ^[5]; Hannaske, R. ^[6]; Junghans, A. R. ^[2]; Kogler, T. ^[7]; Roder, M. ^[2]; Schmidt, K. ^[8]; Wagner, A. ^[2]; Wagner, L. ^[7]

Helmholtz-Zentrum Dresden-Rossendorf (Germany); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Helmholtz-Zentrum Dresden-Rossendorf (Germany)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Helmholtz-Zentrum Dresden-Rossendorf (Germany); Saxon State Ministry of Environment and Agriculture (SMUL), Dresden (Germany)
Helmholtz-Zentrum Dresden-Rossendorf (Germany); Hungarian Academy of Sciences, Debrecen (Hungary). Inst. for Nuclear Research
Helmholtz-Zentrum Dresden-Rossendorf (Germany); Ministry of Justice and for Europe and Consumer Protection of the State of Brandenburg (MdJEV), Potsdam (Germany)
Helmholtz-Zentrum Dresden-Rossendorf (Germany); Technical Univ. Dresden (Germany)
Helmholtz-Zentrum Dresden-Rossendorf (Germany); Technical Univ. Dresden (Germany); Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.

The dipole strength distribution of ⁷⁴Ge was studied in photon-scattering experiments using bremsstrahlung produced with electron beams of energies of 7.0 and 12.1 MeV at the linear accelerator ELBE. We identified 94 levels with spin J = 1 up to an excitation energy of 8.9 MeV and analyzed the strength in the quasicontinuum of states. Simulations of statistical γ -ray cascades were performed to estimate intensities of inelastic transitions and to correct the intensities of the ground-state transitions for their branching ratios. The photoabsorption cross section below the neutron-separation energy derived in this way is combined with the photoabsorption cross section obtained from an earlier (γ,n) experiment and compared with phenomenological approximations.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA). Nuclear Science and Security Consortium (NSSC)

DOE Contract Number:: NA0000979

OSTI ID:: 1454838

Journal Information:: Physical Review. C. Nuclear Physics, Vol. 92, Issue 4; ISSN 0556-2813

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

References (55)

Dipole response of ${}^{88}{Sr}$ up to the neutron-separation energy Schwengner, R.; Rusev, G.; Benouaret, N. Physical Review C, Vol. 76, Issue 3 https://doi.org/10.1103/PhysRevC.76.034321	journal	September 2007
Spectral Structure of the Pygmy Dipole Resonance Tonchev, A. P.; Hammond, S. L.; Kelley, J. H. Physical Review Letters, Vol. 104, Issue 7 https://doi.org/10.1103/PhysRevLett.104.072501	journal	February 2010
Enhanced electric dipole strength below particle-threshold as a consequence of nuclear deformation Rusev, G.; Schwengner, R.; Beyer, R. Physical Review C, Vol. 79, Issue 6 https://doi.org/10.1103/PhysRevC.79.061302	journal	June 2009
Fine structure of the magnetic-dipole-strength distribution in ${}^{208}{Pb}$ Shizuma, T.; Hayakawa, T.; Ohgaki, H. Physical Review C, Vol. 78, Issue 6 https://doi.org/10.1103/PhysRevC.78.061303	journal	December 2008
Experimental studies of the Pygmy Dipole Resonance Savran, D.; Aumann, T.; Zilges, A. Progress in Particle and Nuclear Physics, Vol. 70 https://doi.org/10.1016/j.ppnp.2013.02.003	journal	May 2013
RIPL – Reference Input Parameter Library for Calculation of Nuclear Reactions and Nuclear Data Evaluations Capote, R.; Herman, M.; Obložinský, P. Nuclear Data Sheets, Vol. 110, Issue 12 https://doi.org/10.1016/j.nds.2009.10.004	journal	December 2009
Fine Structure of the Giant $M 1$ Resonance in ${}^{90}{Zr}$ Rusev, G.; Tsoneva, N.; Dönau, F. Physical Review Letters, Vol. 110, Issue 2 https://doi.org/10.1103/PhysRevLett.110.022503	journal	January 2013
Collective Treatment of the Giant Resonances in Spherical Nuclei Huber, M. G.; Danos, M.; Weber, H. J. Physical Review, Vol. 155, Issue 4 https://doi.org/10.1103/PhysRev.155.1073	journal	March 1967
Energy levels of light nuclei A = 11−12 Ajzenberg-Selove, F. Nuclear Physics A, Vol. 506, Issue 1 https://doi.org/10.1016/0375-9474(90)90271-M	journal	January 1990
Photon data shed new light upon the GDR spreading width in heavy nuclei Junghans, A. R.; Rusev, G.; Schwengner, R. Physics Letters B, Vol. 670, Issue 3 https://doi.org/10.1016/j.physletb.2008.10.055	journal	December 2008
Low-lying dipole modes in vibrational nuclei studied by photon scattering Kneissl, Ulrich; Pietralla, Norbert; Zilges, Andreas Journal of Physics G: Nuclear and Particle Physics, Vol. 32, Issue 8 https://doi.org/10.1088/0954-3899/32/8/R01	journal	June 2006
Photonuclear and radiative-capture reaction rates for nuclear astrophysics and transmutation: $^{92 - 100}$ Mo, $^{88}$ Sr, $^{90}$ Zr, and $^{139}$ La Beard, M.; Frauendorf, S.; Kämpfer, B. Physical Review C, Vol. 85, Issue 6 https://doi.org/10.1103/PhysRevC.85.065808	journal	June 2012
Ratio of germanium detector peak efficiencies at photon energies of 4.4 and 11.7MeV: Experiment versus simulation Carson, Spencer; Iliadis, Christian; Cesaratto, John Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 618, Issue 1-3 https://doi.org/10.1016/j.nima.2010.02.128	journal	June 2010
Nature of Low-Energy Dipole Strength in Nuclei: The Case of a Resonance at Particle Threshold in ${}^{208}P b$ Ryezayeva, N.; Hartmann, T.; Kalmykov, Y. Physical Review Letters, Vol. 89, Issue 27 https://doi.org/10.1103/PhysRevLett.89.272502	journal	December 2002
Pygmy dipole resonance in exotic nuclei Tsoneva, N.; Lenske, H. Progress in Particle and Nuclear Physics, Vol. 59, Issue 1 https://doi.org/10.1016/j.ppnp.2006.12.030	journal	July 2007
Fine Structure of the Pygmy Dipole Resonance in ${}^{136}{Xe}$ Savran, D.; Fritzsche, M.; Hasper, J. Physical Review Letters, Vol. 100, Issue 23 https://doi.org/10.1103/PhysRevLett.100.232501	journal	June 2008
Electromagnetic dipole strength up to the neutron separation energy from $^{196}$ Pt( $γ, γ^{'}$ ) and $^{195}$ Pt( $n, γ$ ) reactions Massarczyk, R.; Schramm, G.; Junghans, A. R. Physical Review C, Vol. 87, Issue 4 https://doi.org/10.1103/PhysRevC.87.044306	journal	April 2013
The photon-scattering facility at the superconducting electron accelerator ELBE Schwengner, R.; Beyer, R.; Dönau, F. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 555, Issue 1-2 https://doi.org/10.1016/j.nima.2005.09.024	journal	December 2005
Isospin Character of the Pygmy Dipole Resonance in ${}^{124}{Sn}$ Endres, J.; Litvinova, E.; Savran, D. Physical Review Letters, Vol. 105, Issue 21 https://doi.org/10.1103/PhysRevLett.105.212503	journal	November 2010
Pygmy resonances and radiative nucleon captures for stellar nucleosynthesis Tsoneva, N.; Goriely, S.; Lenske, H. Physical Review C, Vol. 91, Issue 4 https://doi.org/10.1103/PhysRevC.91.044318	journal	April 2015
Fluctuations of Nuclear Reaction Widths Porter, C. E.; Thomas, R. G. Physical Review, Vol. 104, Issue 2 https://doi.org/10.1103/PhysRev.104.483	journal	October 1956
Bremsstrahlung cross-section with screening and Coulomb corrections at high energies Haug, Eberhard Radiation Physics and Chemistry, Vol. 77, Issue 3 https://doi.org/10.1016/j.radphyschem.2007.10.003	journal	March 2008
The γ-absorption cross section of holmium in the dynamic collective theory Danos, M.; Greiner, W. Physics Letters, Vol. 8, Issue 2 https://doi.org/10.1016/0031-9163(64)90732-2	journal	January 1964
Pygmy dipole resonances in the tin region Tsoneva, N.; Lenske, H. Physical Review C, Vol. 77, Issue 2 https://doi.org/10.1103/PhysRevC.77.024321	journal	February 2008
Experimental energy-dependent nuclear spin distributions von Egidy, T.; Bucurescu, D. Physical Review C, Vol. 80, Issue 5 https://doi.org/10.1103/PhysRevC.80.054310	journal	November 2009
Dipole and electric quadrupole excitations in $^{40, 48} Ca$ Hartmann, T.; Enders, J.; Mohr, P. Physical Review C, Vol. 65, Issue 3 https://doi.org/10.1103/PhysRevC.65.034301	journal	February 2002
Pygmy dipole strength in $^{86}$ Kr and systematics of $N = 50$ isotones Schwengner, R.; Massarczyk, R.; Rusev, G. Physical Review C, Vol. 87, Issue 2 https://doi.org/10.1103/PhysRevC.87.024306	journal	February 2013
Test of gamma-ray strength functions in nuclear reaction model calculations Kopecky, J.; Uhl, M. Physical Review C, Vol. 41, Issue 5 https://doi.org/10.1103/PhysRevC.41.1941	journal	May 1990
Fragmentation and systematics of the pygmy dipole resonance in the stable $N = 82$ isotones Savran, D.; Elvers, M.; Endres, J. Physical Review C, Vol. 84, Issue 2 https://doi.org/10.1103/PhysRevC.84.024326	journal	August 2011
A study of the photoneutron contribution to the giant dipole resonance of nuclei in the 64 ≦ A ≦ 86 mass region Carlos, P.; Beil, H.; Bergère, R. Nuclear Physics A, Vol. 258, Issue 2 https://doi.org/10.1016/0375-9474(76)90012-9	journal	February 1976
Electric Dipole Ground-State Transition Width Strength Function and 7-Mev Photon Interactions Axel, Peter Physical Review, Vol. 126, Issue 2 https://doi.org/10.1103/PhysRev.126.671	journal	April 1962
Dipole strength in $^{78}$ Se below the neutron separation energy from a combined analysis of $^{77}$ Se( $n, γ$ ) and $^{78}$ Se( $γ, γ^{'}$ ) experiments Schramm, G.; Massarczyk, R.; Junghans, A. R. Physical Review C, Vol. 85, Issue 1 https://doi.org/10.1103/PhysRevC.85.014311	journal	January 2012
Electromagnetic dipole strength of $^{136}$ Ba below the neutron separation energy Massarczyk, R.; Schwengner, R.; Dönau, F. Physical Review C, Vol. 86, Issue 1 https://doi.org/10.1103/PhysRevC.86.014319	journal	July 2012
Nuclear Deformation and Neutron Excess as Competing Effects for Dipole Strength in the Pygmy Region Massarczyk, R.; Schwengner, R.; Dönau, F. Physical Review Letters, Vol. 112, Issue 7 https://doi.org/10.1103/PhysRevLett.112.072501	journal	February 2014
Novel technique for Constraining $r$ -Process ( $n$ , $γ$ ) Reaction Rates Spyrou, A.; Liddick, S. N.; Larsen, A. C. Physical Review Letters, Vol. 113, Issue 23 https://doi.org/10.1103/PhysRevLett.113.232502	journal	December 2014
Pygmy dipole strength in ${}^{90}{Zr}$ Schwengner, R.; Rusev, G.; Tsoneva, N. Physical Review C, Vol. 78, Issue 6 https://doi.org/10.1103/PhysRevC.78.064314	journal	December 2008
First evidence of low energy enhancement in Ge isotopes Renstrøm, T.; Nyhus, H. -T.; Utsunomiya, H. EPJ Web of Conferences, Vol. 93 https://doi.org/10.1051/epjconf/20159304003	journal	January 2015
Level densities for $20 <~ A <~ 110$ Al-Quraishi, S. I.; Grimes, S. M.; Massey, T. N. Physical Review C, Vol. 67, Issue 1 https://doi.org/10.1103/PhysRevC.67.015803	journal	January 2003
Microscopic Nature of the Pygmy Dipole Resonance: The Stable Ca Isotopes Hartmann, T.; Babilon, M.; Kamerdzhiev, S. Physical Review Letters, Vol. 93, Issue 19 https://doi.org/10.1103/PhysRevLett.93.192501	journal	November 2004
Bremsstrahlung Cross-Section Formula Including a High-Order Coulomb Correction Roche, G.; Ducos, C.; Proriol, J. Physical Review A, Vol. 5, Issue 6 https://doi.org/10.1103/PhysRevA.5.2403	journal	June 1972
Individual particle and collective aspects of the nuclear photoeffect Brink, D. M. Nuclear Physics, Vol. 4 https://doi.org/10.1016/0029-5582(87)90021-6	journal	August 1957
Analytical Dirac-Hartree-Fock-Slater screening function for atoms (Z=1–92) Salvat, F.; Mart̆nez, J. D.; Mayol, R. Physical Review A, Vol. 36, Issue 2 https://doi.org/10.1103/PhysRevA.36.467	journal	July 1987
Dipole strength in ${}^{139}{La}$ below the neutron-separation energy Makinaga, A.; Schwengner, R.; Rusev, G. Physical Review C, Vol. 82, Issue 2 https://doi.org/10.1103/PhysRevC.82.024314	journal	August 2010
Dipole strength in ${}^{89}Y$ up to the neutron-separation energy Benouaret, N.; Schwengner, R.; Rusev, G. Physical Review C, Vol. 79, Issue 1 https://doi.org/10.1103/PhysRevC.79.014303	journal	January 2009
Concentration of electric dipole strength below the neutron separation energy in N=82 nuclei Zilges, A.; Volz, S.; Babilon, M. Physics Letters B, Vol. 542, Issue 1-2 https://doi.org/10.1016/S0370-2693(02)02309-2	journal	August 2002
$E 1$ strength in ${}^{208}{Pb}$ within the shell model Schwengner, R.; Massarczyk, R.; Brown, B. A. Physical Review C, Vol. 81, Issue 5 https://doi.org/10.1103/PhysRevC.81.054315	journal	May 2010
Simulation of γ cascades in complex nuclei with emphasis on assessment of uncertainties of cascade-related quantities Bečvář, F. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 417, Issue 2-3 https://doi.org/10.1016/S0168-9002(98)00787-6	journal	November 1998
Droplet model of the giant dipole resonance Myers, W. D.; Swiatecki, W. J.; Kodama, T. Physical Review C, Vol. 15, Issue 6 https://doi.org/10.1103/PhysRevC.15.2032	journal	June 1977
Low-energy tail of the giant dipole resonance in ${}^{98}{Mo}$ and ${}^{100}{Mo}$ deduced from photon-scattering experiments Rusev, G.; Schwengner, R.; Dönau, F. Physical Review C, Vol. 77, Issue 6 https://doi.org/10.1103/PhysRevC.77.064321	journal	June 2008
Magnetic dipole strength in ${}^{128}{Xe}$ and ${}^{134}{Xe}$ in the spin-flip resonance region Massarczyk, R.; Rusev, G.; Schwengner, R. Physical Review C, Vol. 90, Issue 5 https://doi.org/10.1103/PhysRevC.90.054310	journal	November 2014
Geant4—a simulation toolkit Agostinelli, S.; Allison, J.; Amako, K. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3 https://doi.org/10.1016/S0168-9002(03)01368-8	journal	July 2003
On the width of the giant dipole resonance in deformed nuclei Bush, B.; Alhassid, Y. Nuclear Physics A, Vol. 531, Issue 1 https://doi.org/10.1016/0375-9474(91)90566-O	journal	August 1991
Magnetic dipole excitations in nuclei: Elementary modes of nucleonic motion Heyde, Kris; von Neumann-Cosel, Peter; Richter, Achim Reviews of Modern Physics, Vol. 82, Issue 3 https://doi.org/10.1103/RevModPhys.82.2365	journal	September 2010
Multipole mixing ratios of transitions in ${}^{11}B$ Rusev, G.; Tonchev, A. P.; Schwengner, R. Physical Review C, Vol. 79, Issue 4 https://doi.org/10.1103/PhysRevC.79.047601	journal	April 2009
Electric and magnetic dipole excitations to bound states in 70,72,74,76Ge Jung, A.; Lindenstruth, S.; Schacht, H. Nuclear Physics A, Vol. 584, Issue 1 https://doi.org/10.1016/0375-9474(94)00626-X	journal	February 1995

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