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1.
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Search for $^{22}$Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes
/ Fougères, Chloé (GANIL ; Argonne, PHY) ; de Oliveira Santos, François (GANIL) ; José, Jordi (Barcelona U. ; Barcelona, IEEC) ; Michelagnoli, Caterina (Laue-Langevin Inst.) ; Clément, Emmanuel (GANIL) ; Kim, Yung Hee (GANIL ; IBS, Daejeon, CENS) ; Lemasson, Antoine (GANIL) ; Guimarães, Valdir (Sao Paulo U.) ; Barrientos, Diego (CERN) ; Bemmerer, Daniel (HZDR, Dresden) et al.
Classical novae are thermonuclear explosions in stellar binary systems, and important sources of $^{26}$Al and $^{22}$Na. While gamma rays from the decay of the former radioisotope have been observed throughout the Galaxy, $^{22}$Na remains untraceable. [...]
arXiv:2212.06302.-
2023-09-05 - 18 p.
- Published in : Nature Commun. 14 (2023) 4536
Fulltext: document - PDF; 2212.06302 - PDF;
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2.
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Photoexcitation of $^{76}$Ge
/ Schwengner, R. (HZDR, Dresden) ; Massarczyk, R. (Los Alamos) ; Schmidt, K. (HZDR, Dresden) ; Zuber, K. (Dresden, Tech. U.) ; Beyer, R. (HZDR, Dresden) ; Bemmerer, D. (HZDR, Dresden) ; Hammer, S. (HZDR, Dresden) ; Hartmann, A. (HZDR, Dresden) ; Hensel, T. (HZDR, Dresden ; Dresden, Tech. U.) ; Hoffmann, H.F. (HZDR, Dresden ; Dresden, Tech. U.) et al.
The dipole strength of the nuclide $^{76}$Ge was studied in photon-scattering experiments using bremsstrahlung produced with electron beams of energies of 7.8 and 12.3 MeV at the $\gamma$ELBE facility. We identified 210 levels up to an excitation energy of 9.4 MeV and assigned spin $J$ = 1 to most of them. [...]
arXiv:2106.12214.-
2022-02-04 - 12 p.
- Published in : Phys. Rev. C 105 (2022) 024303
Fulltext: 2106.12214 - PDF; PhysRevC.105.024303 - PDF;
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3.
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Electric and magnetic dipole strength in $^{66}$Zn
/ Schwengner, R (HZDR, Dresden) ; Massarczyk, R (Los Alamos) ; Scheck, M (Paisley U.) ; Tornow, W (Duke U. ; TUNL, Durham) ; Battaglia, G (Strathclyde U.) ; Beck, T (Darmstadt, Tech. Hochsch.) ; Bemmerer, D (HZDR, Dresden) ; Benouaret, N (Algiers U. Sci. Tech.) ; Beyer, R (HZDR, Dresden) ; Butterling, M (HZDR, Dresden) et al.
The dipole strength of the nuclide $^{66}$Zn was studied in photon-scattering experiments using bremsstrahlung produced with electron beams of energies of 7.5 and 13.4 MeV at the γELBE facility as well as using quasimonoenergetic and linearly polarized photon beams of 30 energies within the range of 4.3 to 9.9 MeV at the HIγS facility. A total of 128 J=1 states were identified, among them 9 with 1$^+$ and 86 with 1$^−$ assignments. [...]
2021 - 14 p.
- Published in : Phys. Rev. C 103 (2021) 024312
Fulltext: PDF;
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4.
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Electromagnetic dipole strength distribution in $^{124,128,132,134}$Xe below the neutron separation energy
/ Massarczyk, R (HZDR, Dresden ; Dresden, Tech. U.) ; Schwengner, R (HZDR, Dresden) ; Dönau, F (HZDR, Dresden) ; Frauendorf, S (U. Notre Dame (main)) ; Bemmerer, D (HZDR, Dresden) ; Beyer, R (HZDR, Dresden ; Dresden, Tech. U.) ; Butterling, M (HZDR, Dresden ; Dresden, Tech. U.) ; Hannaske, R (HZDR, Dresden ; Dresden, Tech. U.) ; Junghans, A (HZDR, Dresden) ; Koegler, T (HZDR, Dresden ; Dresden, Tech. U.) et al.
Dipole strength functions in the chain of xenon isotopes are analyzed on the basis of photon-scatterde experiments with bremsstrahlung at the ELBE facility in Dresden, Germany, and at the HI S facility in Durham, North Carolina, USA. The evolution of dipole strength with neutron excess and nuclear deformation is studied..
2014
Published version from CERN: PDF;
In : European Research Infrastructures for Nuclear Data Applications (ERINDA) workshop, CERN, Geneva, Switzerland, 1 - 3 Oct 2013, pp.153-155
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5.
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Inelastic scattering of fast neutrons from $^{56}$Fe
/ Beyer, R (HZDR, Dresden) ; Schwengner, R (HZDR, Dresden) ; Hannaske, R (HZDR, Dresden ; Dresden, Tech. U.) ; Junghans, A R (HZDR, Dresden) ; Massarczyk, R (HZDR, Dresden ; Dresden, Tech. U.) ; Anders, M (HZDR, Dresden ; Dresden, Tech. U.) ; Bemmerer, D (HZDR, Dresden) ; Ferrari, A (HZDR, Dresden) ; Kögler, T (HZDR, Dresden ; Dresden, Tech. U.) ; Röder, M (HZDR, Dresden ; Dresden, Tech. U.) et al.
Inelastic scattering of fast neutrons from $^{56}$Fe was studied at the photoneutron source nELBE. The neutron energies were determined on the basis of a timeof- flight measurement. [...]
2014
Published version from CERN: PDF;
In : European Research Infrastructures for Nuclear Data Applications (ERINDA) workshop, CERN, Geneva, Switzerland, 1 - 3 Oct 2013, pp.87-93
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6.
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Neutron total cross section measurements of gold and tantalum at the nELBE photoneutron source
/ Hannaske, Roland (Dresden, Tech. U. ; HZDR, Dresden) ; Elekes, Zoltan (HZDR, Dresden) ; Beyer, Roland (HZDR, Dresden) ; Junghans, Arnd (HZDR, Dresden) ; Bemmerer, Daniel (HZDR, Dresden) ; Birgersson, Evert (HZDR, Dresden) ; Ferrari, Anna (HZDR, Dresden) ; Grosse, Eckart (HZDR, Dresden ; Dresden, Tech. U.) ; Kempe, Mathias (HZDR, Dresden ; Dresden, Tech. U.) ; Kögler, Toni (HZDR, Dresden ; Dresden, Tech. U.) et al.
Neutron total cross sections of 197 Au and nat Ta have been measured at the nELBE photoneutron source in the energy range from 0.1 - 10 MeV with a statistical uncertainty of up to 2 % and a total systematic uncertainty of 1 %. This facility is optimized for the fast neutron energy range and combines an excellent t ime structure of the neutron pulses (electron bunch width 5 ps) with a short flight path of 7 m. [...]
2014
Published version from CERN: PDF;
In : European Research Infrastructures for Nuclear Data Applications (ERINDA) workshop, CERN, Geneva, Switzerland, 1 - 3 Oct 2013, pp.15-23
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7.
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Nuclear astrophysics with radioactive ions at FAIR
/ Reifarth, R. ; Altstadt, S. ; Göbel, K. ; Heftrich, T. ; Heil, M. ; Koloczek, A. ; Langer, C. ; Plag, R. ; Pohl, M. ; Sonnabend, K. et al.
The nucleosynthesis of elements beyond iron is dominated by neutron captures in the s and r processes. However, 32 stable, proton-rich isotopes cannot be formed during those processes, because they are shielded from the s-process flow and r-process beta-decay chains. [...]
arXiv:1310.1632.-
2016-01-05 - 12 p.
- Published in : J. Phys.: Conf. Ser. 665 (2016) 012044
Fulltext: pdf - PDF; 10.1088_1742-6596_665_1_012044 - PDF; arXiv:1310.1632 - PDF; External link: Preprint
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8.
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Ti-44, Al-26 and Mn-53 samples for nuclear astrophysics: The needs, the possibilities and the sources
/ Dressler, R (PSI, Villigen) ; Ayranov, M (PSI, Villigen) ; Bemmerer, D (Forschungszentrum Dresden Rossendorf) ; Bunka, M (PSI, Villigen) ; Dai, Y (PSI, Villigen) ; Lederer, C (Vienna U.) ; Fallis, J (TRIUMF) ; Murphy, A StJ (Edinburgh U.) ; Pignatari, M (Basel U.) ; Schumann, D (PSI, Villigen) et al.
Exploration of the physics involved in the production of cosmogenic radionuclides requires experiments using the same rare, radioactive nuclei in sufficient quantities. For this work, such exotic radionuclides have been extracted from previously proton-irradiated stainless steel samples using wet chemistry separation techniques. [...]
2012 - 21 p.
- Published in : J. Phys. G 39 (2012) 105201
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9.
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Measurement of the $^{44}$Ti($\alpha$, p)$^{47}$V reaction cross section, of relevance to $\gamma$-ray observation of core collapse supernovae, using reclaimed $^{44}$Ti
/ Murphy, AStJ ; Aliotta, M ; Ayranov, M ; Bastin, B ; Bemmerer, D ; Bingham, R ; Bunka, M ; Butler, P ; Catherall, R ; Cocolios, TE et al.
CERN-INTC-2012-028 ; INTC-P-335.
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2012.
Fulltext
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10.
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Low energy underground study of 14N(p,gamma)15O cross section
/ Lemut, A ; Confortola, F ; Bemmerer, D ; Bonetti, R ; Broggini, C ; Corvisiero, P ; Costantini, H ; Cruz, J ; Formicola, A ; Fülöp, Z et al.
2006
- Published in : AIP Conf. Proc.: 831 (2006) , pp. 383-387
External link: Published version from AIP
In : International Conference on Frontiers in Nuclear Structures, Astrophysics and Reactions, Kos, Greece, 12 - 17 Sep 2005, pp.383-387
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