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Resonant Nuclear Gamma Decay and the Heavy-Element Nucleosynthesis

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Publications

La 137 , 138 , 139 ( n , γ ) cross sections constr

Author(s): B. V. Kheswa, M. Wiedeking, J. A. Brown, A. C. Larsen, S. Goriely, M. Guttormsen, F. L. Bello Garrote, L. A. Bernstein, D. L. Bleuel, T. K. Eriksen, F. Giacoppo, A. Görgen, B. L. Goldblum, T. W. Hagen, P. E. Koehler, M. Klintefjord, K. L. Malatji, J. E. Midtbø, H. T. Nyhus, P. Papka, T. Renstrøm, S. J. Rose, E. Sahin, S. Siem, T. G. Tornyi
Published in: Physical Review C, Issue 95/4, 2017, ISSN 2469-9985
DOI: 10.1103/physrevc.95.045805

Investigating the γ decay of Ni 65 from particle- γ coincidence data

Author(s): L. Crespo Campo, A. C. Larsen, F. L. Bello Garrote, T. K. Eriksen, F. Giacoppo, A. Görgen, M. Guttormsen, M. Klintefjord, T. Renstrøm, E. Sahin, S. Siem, T. G. Tornyi, G. M. Tveten
Published in: Physical Review C, Issue 96/1, 2017, ISSN 2469-9985
DOI: 10.1103/physrevc.96.014312

Nature of low-lying electric dipole resonance excitations in Ge 74

Author(s): D. Negi, M. Wiedeking, E. G. Lanza, E. Litvinova, A. Vitturi, R. A. Bark, L. A. Bernstein, D. L. Bleuel, S. Bvumbi, T. D. Bucher, B. H. Daub, T. S. Dinoko, J. L. Easton, A. Görgen, M. Guttormsen, P. Jones, B. V. Kheswa, N. A. Khumalo, A. C. Larsen, E. A. Lawrie, J. J. Lawrie, S. N. T. Majola, L. P. Masiteng, M. R. Nchodu, J. Ndayishimye, R. T. Newman, S. P. Noncolela, J. N. Orce, P. Papka, L. Pel
Published in: Physical Review C, Issue 94/2, 2016, ISSN 2469-9985
DOI: 10.1103/physrevc.94.024332

Neutron-capture rates for explosive nucleosynthesis: the case of 68 Ni( n , γ ) 69 Ni

Author(s): A Spyrou, A C Larsen, S N Liddick, F Naqvi, B P Crider, A C Dombos, M Guttormsen, D L Bleuel, A Couture, L Crespo Campo, R Lewis, S Mosby, M R Mumpower, G Perdikakis, C J Prokop, S J Quinn, T Renstrøm, S Siem, R Surman
Published in: Journal of Physics G: Nuclear and Particle Physics, Issue 44/4, 2017, Page(s) 044002, ISSN 0954-3899
DOI: 10.1088/1361-6471/aa5ae7

Low-energy enhancement and fluctuations of γ -ray strength functions in 56,57 Fe: test of the Brink–Axel hypothesis

Author(s): A C Larsen, M Guttormsen, N Blasi, A Bracco, F Camera, L Crespo Campo, T K Eriksen, A Görgen, T W Hagen, V W Ingeberg, B V Kheswa, S Leoni, J E Midtbø, B Million, H T Nyhus, T Renstrøm, S J Rose, I E Ruud, S Siem, T G Tornyi, G M Tveten, A V Voinov, M Wiedeking, F Zeiser
Published in: Journal of Physics G: Nuclear and Particle Physics, Issue 44/6, 2017, Page(s) 064005, ISSN 0954-3899
DOI: 10.1088/1361-6471/aa644a

Energy dependence of the prompt γ -ray emission from the ( d , p ) -induced fission of U

Author(s): S. J. Rose, F. Zeiser, J. N. Wilson, A. Oberstedt, S. Oberstedt, S. Siem, G. M. Tveten, L. A. Bernstein, D. L. Bleuel, J. A. Brown, L. Crespo Campo, F. Giacoppo, A. Görgen, M. Guttormsen, K. Hadyńska, A. Hafreager, T. W. Hagen, M. Klintefjord, T. A. Laplace, A. C. Larsen, T. Renstrøm, E. Sahin, C. Schmitt, T. G. Tornyi, M. Wiedeking
Published in: Physical Review C, Issue 96/1, 2017, ISSN 2469-9985
DOI: 10.1103/physrevc.96.014601

Quasicontinuum γ decay of Zr 91 , 92 : Benchmarking indirect (

Author(s): M. Guttormsen, S. Goriely, A. C. Larsen, A. Görgen, T. W. Hagen, T. Renstrøm, S. Siem, N. U. H. Syed, G. Tagliente, H. K. Toft, H. Utsunomiya, A. V. Voinov, K. Wikan
Published in: Physical Review C, Issue 96/2, 2017, ISSN 2469-9985
DOI: 10.1103/physrevc.96.024313

Strong Neutron- γ Competition above the Neutron Threshold in the Decay of Co 70

Author(s): A. Spyrou, S. N. Liddick, F. Naqvi, B. P. Crider, A. C. Dombos, D. L. Bleuel, B. A. Brown, A. Couture, L. Crespo Campo, M. Guttormsen, A. C. Larsen, R. Lewis, P. Möller, S. Mosby, M. R. Mumpower, G. Perdikakis, C. J. Prokop, T. Renstrøm, S. Siem, S. J. Quinn, S. Valenta
Published in: Physical Review Letters, Issue 117/14, 2016, ISSN 0031-9007
DOI: 10.1103/PhysRevLett.117.142701

Low-energy enhancement in the γ -ray strength functions of Ge 73 , 74

Author(s): T. Renstrøm, H.-T. Nyhus, H. Utsunomiya, R. Schwengner, S. Goriely, A. C. Larsen, D. M. Filipescu, I. Gheorghe, L. A. Bernstein, D. L. Bleuel, T. Glodariu, A. Görgen, M. Guttormsen, T. W. Hagen, B. V. Kheswa, Y.-W. Lui, D. Negi, I. E. Ruud, T. Shima, S. Siem, K. Takahisa, O. Tesileanu, T. G. Tornyi, G. M. Tveten, M. Wiedeking
Published in: Physical Review C, Issue 93/6, 2016, ISSN 2469-9985
DOI: 10.1103/PhysRevC.93.064302

First observation of low-energy γ -ray enhancement in the rare-earth region

Author(s): A. Simon, M. Guttormsen, A. C. Larsen, C. W. Beausang, P. Humby, J. T. Burke, R. J. Casperson, R. O. Hughes, T. J. Ross, J. M. Allmond, R. Chyzh, M. Dag, J. Koglin, E. McCleskey, M. McCleskey, S. Ota, A. Saastamoinen
Published in: Physical Review C, Issue 93/3, 2016, ISSN 2469-9985
DOI: 10.1103/PhysRevC.93.034303

Statistical properties of Pu 243 , and Pu 242 ( n , γ

Author(s): T. A. Laplace, F. Zeiser, M. Guttormsen, A. C. Larsen, D. L. Bleuel, L. A. Bernstein, B. L. Goldblum, S. Siem, F. L. Bello Garotte, J. A. Brown, L. Crespo Campo, T. K. Eriksen, F. Giacoppo, A. Görgen, K. Hadyńska-Klȩk, R. A. Henderson, M. Klintefjord, M. Lebois, T. Renstrøm, S. J. Rose, E. Sahin, T. G. Tornyi, G. M. Tveten, A. Voinov, M. Wiedeking, J. N. Wilson, W. Younes
Published in: Physical Review C, Issue 93/1, 2016, ISSN 2469-9985
DOI: 10.1103/PhysRevC.93.014323

γ -ray decay from neutron-bound and unbound states in Mo 95 and a novel technique for spin determination

Author(s): M. Wiedeking, M. Krtička, L. A. Bernstein, J. M. Allmond, M. S. Basunia, D. L. Bleuel, J. T. Burke, B. H. Daub, P. Fallon, R. B. Firestone, B. L. Goldblum, R. Hatarik, P. T. Lake, A. C. Larsen, I.-Y. Lee, S. R. Lesher, S. Paschalis, M. Petri, L. Phair, N. D. Scielzo, A. Volya
Published in: Physical Review C, Issue 93/2, 2016, ISSN 2469-9985
DOI: 10.1103/PhysRevC.93.024303

Validity of the Generalized Brink-Axel Hypothesis in Np 238

Author(s): M. Guttormsen, A. C. Larsen, A. Görgen, T. Renstrøm, S. Siem, T. G. Tornyi, G. M. Tveten
Published in: Physical Review Letters, Issue 116/1, 2016, ISSN 0031-9007
DOI: 10.1103/PhysRevLett.116.012502

Experimentally constrained ( p , γ ) Y 89 and (

Author(s): A. C. Larsen, M. Guttormsen, R. Schwengner, D. L. Bleuel, S. Goriely, S. Harissopulos, F. L. Bello Garrote, Y. Byun, T. K. Eriksen, F. Giacoppo, A. Görgen, T. W. Hagen, M. Klintefjord, T. Renstrøm, S. J. Rose, E. Sahin, S. Siem, T. G. Tornyi, G. M. Tveten, A. V. Voinov, M. Wiedeking
Published in: Physical Review C, Issue 93/4, 2016, ISSN 2469-9985
DOI: 10.1103/PhysRevC.93.045810

Completing the nuclear reaction puzzle of the nucleosynthesis of Mo 92

Author(s): G. M. Tveten, A. Spyrou, R. Schwengner, F. Naqvi, A. C. Larsen, T. K. Eriksen, F. L. Bello Garrote, L. A. Bernstein, D. L. Bleuel, L. Crespo Campo, M. Guttormsen, F. Giacoppo, A. Görgen, T. W. Hagen, K. Hadynska-Klek, M. Klintefjord, B. S. Meyer, H. T. Nyhus, T. Renstrøm, S. J. Rose, E. Sahin, S. Siem, T. G. Tornyi
Published in: Physical Review C, Issue 94/2, 2016, ISSN 2469-9985
DOI: 10.1103/PhysRevC.94.025804

Investigation of the U 238 ( d , p ) surrogate reaction via the simu

Author(s): Q. Ducasse, B. Jurado, M. Aïche, P. Marini, L. Mathieu, A. Görgen, M. Guttormsen, A. C. Larsen, T. Tornyi, J. N. Wilson, G. Barreau, G. Boutoux, S. Czajkowski, F. Giacoppo, F. Gunsing, T. W. Hagen, M. Lebois, J. Lei, V. Méot, B. Morillon, A. M. Moro, T. Renstrøm, O. Roig, S. J. Rose, O. Sérot, S. Siem, I. Tsekhanovich, G. M. Tveten, M. Wiedeking
Published in: Physical Review C, Issue 94/2, 2016, ISSN 2469-9985
DOI: 10.1103/PhysRevC.94.024614

Experimental Neutron Capture Rate Constraint Far from Stability

Author(s): S. N. Liddick, A. Spyrou, B. P. Crider, F. Naqvi, A. C. Larsen, M. Guttormsen, M. Mumpower, R. Surman, G. Perdikakis, D. L. Bleuel, A. Couture, L. Crespo Campo, A. C. Dombos, R. Lewis, S. Mosby, S. Nikas, C. J. Prokop, T. Renstrom, B. Rubio, S. Siem, S. J. Quinn
Published in: Physical Review Letters, Issue 116/24, 2016, ISSN 0031-9007
DOI: 10.1103/PhysRevLett.116.242502

Statistical γ -decay properties of Ni 64 and deduced ( n , γ

Author(s): L. Crespo Campo, F. L. Bello Garrote, T. K. Eriksen, A. Görgen, M. Guttormsen, K. Hadynska-Klek, M. Klintefjord, A. C. Larsen, T. Renstrøm, E. Sahin, S. Siem, A. Springer, T. G. Tornyi, G. M. Tveten
Published in: Physical Review C, Issue 94/4, 2016, ISSN 2469-9993
DOI: 10.1103/PhysRevC.94.044321

First experimental constraint on the Os 191 ( n , γ ) reaction rate relevant to

Author(s): I. K. B. Kullmann, A. C. Larsen, T. Renstrøm, K. S. Beckmann, F. L. Bello Garrote, L. Crespo Campo, A. Görgen, M. Guttormsen, J. E. Midtbø, E. Sahin, S. Siem, G. M. Tveten, F. Zeiser
Published in: Physical Review C, Issue 99/6, 2019, ISSN 2469-9985
DOI: 10.1103/physrevc.99.065806

Experimental constraints on the Zn 73 ( n , γ ) Zn 74

Author(s): R. Lewis, S. N. Liddick, A. C. Larsen, A. Spyrou, D. L. Bleuel, A. Couture, L. Crespo Campo, B. P. Crider, A. C. Dombos, M. Guttormsen, S. Mosby, F. Naqvi, G. Perdikakis, C. J. Prokop, S. J. Quinn, T. Renstrøm, S. Siem
Published in: Physical Review C, Issue 99/3, 2019, ISSN 2469-9985
DOI: 10.1103/physrevc.99.034601

Test of the generalized Brink-Axel hypothesis in Ni 64 , 65

Author(s): L. Crespo Campo, M. Guttormsen, F. L. Bello Garrote, T. K. Eriksen, F. Giacoppo, A. Görgen, K. Hadynska-Klek, M. Klintefjord, A. C. Larsen, T. Renstrøm, E. Sahin, S. Siem, A. Springer, T. G. Tornyi, G. M. Tveten
Published in: Physical Review C, Issue 98/5, 2018, ISSN 2469-9985
DOI: 10.1103/physrevc.98.054303

γ -ray strength function for thallium isotopes relevant to the Pb 205 − Tl 205

Author(s): H. Utsunomiya, T. Renstrøm, G. M. Tveten, S. Goriely, T. Ari-izumi, D. Filipescu, J. Kaur, Y.-W. Lui, W. Luo, S. Miyamoto, A. C. Larsen, S. Hilaire, S. Péru, A. J. Koning
Published in: Physical Review C, Issue 99/2, 2019, ISSN 2469-9985
DOI: 10.1103/physrevc.99.024609

Examination of the low-energy enhancement of the γ -ray strength function of Fe 56

Author(s): M. D. Jones, A. O. Macchiavelli, M. Wiedeking, L. A. Bernstein, H. L. Crawford, C. M. Campbell, R. M. Clark, M. Cromaz, P. Fallon, I. Y. Lee, M. Salathe, A. Wiens, A. D. Ayangeakaa, D. L. Bleuel, S. Bottoni, M. P. Carpenter, H. M. Davids, J. Elson, A. Görgen, M. Guttormsen, R. V. F. Janssens, J. E. Kinnison, L. Kirsch, A. C. Larsen, T. Lauritsen, W. Reviol, D. G. Sarantites, S. Siem, A. V. Voinov
Published in: Physical Review C, Issue 97/2, 2018, ISSN 2469-9985
DOI: 10.1103/physrevc.97.024327

Consolidating the concept of low-energy magnetic dipole decay radiation

Author(s): J. E. Midtbø, A. C. Larsen, T. Renstrøm, F. L. Bello Garrote, E. Lima
Published in: Physical Review C, Issue 98/6, 2018, ISSN 2469-9985
DOI: 10.1103/physrevc.98.064321

Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the β -Oslo method

Author(s): S. N. Liddick, A. C. Larsen, M. Guttormsen, A. Spyrou, B. P. Crider, F. Naqvi, J. E. Midtbø, F. L. Bello Garrote, D. L. Bleuel, L. Crespo Campo, A. Couture, A. C. Dombos, F. Giacoppo, A. Görgen, K. Hadynska-Klek, T. W. Hagen, V. W. Ingeberg, B. V. Kheswa, R. Lewis, S. Mosby, G. Perdikakis, C. J. Prokop, S. J. Quinn, T. Renstrøm, S. J. Rose, E. Sahin, S. Siem, G. M. Tveten, M. Wiedeking, F. Zeis
Published in: Physical Review C, Issue 100/2, 2019, ISSN 2469-9985
DOI: 10.1103/physrevc.100.024624

Restricted spin-range correction in the Oslo method: The example of nuclear level density and γ -ray strength function from Pu 239 ( d

Author(s): F. Zeiser, G. M. Tveten, G. Potel, A. C. Larsen, M. Guttormsen, T. A. Laplace, S. Siem, D. L. Bleuel, B. L. Goldblum, L. A. Bernstein, F. L. Bello Garrote, L. Crespo Campo, T. K. Eriksen, A. Görgen, K. Hadynska-Klek, V. W. Ingeberg, J. E. Midtbø, E. Sahin, T. Tornyi, A. Voinov, M. Wiedeking, J. Wilson
Published in: Physical Review C, Issue 100/2, 2019, ISSN 2469-9985
DOI: 10.1103/physrevc.100.024305

Enhanced low-energy γ -decay strength of Ni 70 and its robustness within the shell model

Author(s): A. C. Larsen, J. E. Midtbø, M. Guttormsen, T. Renstrøm, S. N. Liddick, A. Spyrou, S. Karampagia, B. A. Brown, O. Achakovskiy, S. Kamerdzhiev, D. L. Bleuel, A. Couture, L. Crespo Campo, B. P. Crider, A. C. Dombos, R. Lewis, S. Mosby, F. Naqvi, G. Perdikakis, C. J. Prokop, S. J. Quinn, S. Siem
Published in: Physical Review C, Issue 97/5, 2018, ISSN 2469-9985
DOI: 10.1103/PhysRevC.97.054329

Gamma-widths, lifetimes and fluctuations in the nuclear quasi-continuum

Author(s): M. Guttormsen, A. C. Larsen, J. E. Midtbø, L. Crespo Campo, A. Görgen, V. W. Ingeberg, T. Renstrøm, S. Siem, G. M. Tveten, F. Zeiser, L. E. Kirsch
Published in: EPJ Web of Conferences, Issue 178, 2018, Page(s) 06001, ISSN 2100-014X
DOI: 10.1051/epjconf/201817806001

Level densities of Ge 74 , 76 from compound nuclear reactions

Author(s): A. V. Voinov, T. Renstrøm, D. L. Bleuel, S. M. Grimes, M. Guttormsen, A. C. Larsen, S. N. Liddick, G. Perdikakis, A. Spyrou, S. Akhtar, N. Alanazi, K. Brandenburg, C. R. Brune, T. W. Danley, S. Dhakal, P. Gastis, R. Giri, T. N. Massey, Z. Meisel, S. Nikas, S. N. Paneru, C. E. Parker, A. L. Richard
Published in: Physical Review C, Issue 99/5, 2019, ISSN 2469-9985
DOI: 10.1103/physrevc.99.054609

Nuclear level densities and γ -ray strength functions of Ta 180 , 181 , 182

Author(s): C. P. Brits, K. L. Malatji, M. Wiedeking, B. V. Kheswa, S. Goriely, F. L. Bello Garrote, D. L. Bleuel, F. Giacoppo, A. Görgen, M. Guttormsen, K. Hadynska-Klek, T. W. Hagen, S. Hilaire, V. W. Ingeberg, H. Jia, M. Klintefjord, A. C. Larsen, S. N. T. Majola, P. Papka, S. Péru, B. Qi, T. Renstrøm, S. J. Rose, E. Sahin, S. Siem, G. M. Tveten, F. Zeiser
Published in: Physical Review C, Issue 99/5, 2019, ISSN 2469-9985
DOI: 10.1103/physrevc.99.054330

Co 69 , 71   β -decay strength distributions from total absorption spectroscopy

Author(s): S. Lyons, A. Spyrou, S. N. Liddick, F. Naqvi, B. P. Crider, A. C. Dombos, D. L. Bleuel, B. A. Brown, A. Couture, L. Crespo Campo, J. Engel, M. Guttormsen, A. C. Larsen, R. Lewis, P. Möller, S. Mosby, M. R. Mumpower, E. M. Ney, A. Palmisano, G. Perdikakis, C. J. Prokop, T. Renstrøm, S. Siem, M. K. Smith, S. J. Quinn
Published in: Physical Review C, Issue 100/2, 2019, ISSN 2469-9985
DOI: 10.1103/physrevc.100.025806

Novel techniques for constraining neutron-capture rates relevant for r-process heavy-element nucleosynthesis

Author(s): A.C. Larsen, A. Spyrou, S.N. Liddick, M. Guttormsen
Published in: Progress in Particle and Nuclear Physics, Issue 107, 2019, Page(s) 69-108, ISSN 0146-6410
DOI: 10.1016/j.ppnp.2019.04.002

Photoneutron cross sections for Ni isotopes: Toward understanding ( n , γ ) cross sections relevant to weak s -process nucleosynthesis

Author(s): H. Utsunomiya, T. Renstrøm, G. M. Tveten, S. Goriely, S. Katayama, T. Ari-izumi, D. Takenaka, D. Symochko, B. V. Kheswa, V. W. Ingeberg, T. Glodariu, Y.-W. Lui, S. Miyamoto, A. C. Larsen, J. E. Midtbø, A. Görgen, S. Siem, L. Crespo Campo, M. Guttormsen, S. Hilaire, S. Péru, A. J. Koning
Published in: Physical Review C, Issue 98/5, 2018, ISSN 2469-9985
DOI: 10.1103/physrevc.98.054619

Photoneutron Reaction Data for Nuclear Physics and Astrophysics

Author(s): Hiroaki Utsunomiya, Therese Renstrøm, Gry Merete Tveten, Ioana Gheorghe, Dan Mihai Filipescu, Sergey Belyshev, Konstantin Stopani, Hongwei Wang, Gongtao Fan, Yiu-Wing Lui, Dmytro Symochko, Stephane Goriely, Ann-Cecilie Larsen, Sunniva Siem, Vladimir Varlamov, Boris Ishkhanov, Tudor Glodariu, Mateusz Krzysiek, Daiki Takenaka, Takashi Ari-izumi, Sho Amano, Shuji Miyamoto
Published in: EPJ Web of Conferences, Issue 178, 2018, Page(s) 06003, ISSN 2100-014X
DOI: 10.1051/epjconf/201817806003

Verification of detailed balance for γ absorption and emission in Dy isotopes

Author(s): T. Renstrøm, H. Utsunomiya, H. T. Nyhus, A. C. Larsen, M. Guttormsen, G. M. Tveten, D. M. Filipescu, I. Gheorghe, S. Goriely, S. Hilaire, Y.-W. Lui, J. E. Midtbø, S. Péru, T. Shima, S. Siem, O. Tesileanu
Published in: Physical Review C, Issue 98/5, 2018, ISSN 2469-9985
DOI: 10.1103/physrevc.98.054310

Novel Techniques for Constraining Neutron-Capture Rates Relevant to Heavy-element Nucleosynthesis

Author(s): A. C. Larsen, A. Spyrou, S. N. Liddick, M. Guttormsen, V. W. Ingeberg, S. Siem, M. Wiedeking, B. P. Crider, F. Naqvi, G. Perdikakis, M. R. Mumpower, R. Surman, G. M. Tveten, D. L. Bleuel, A. Couture, L. Crespo Campo, A. C. Dombos, A. Görgen, R. Lewis, S. M. Mosby, S. Nikas, C. J. Prokop, S. J. Quinn, T. Renstrøm, and B. Rubio
Published in: PoS - Proceedings of Science, Issue INPC2016, 2017, ISSN 1824-8039

The Beta-Oslo Method: Experimentally Constrained ( $$n,\gamma $$ ) Reaction Rates Relevant to the r-Process

Author(s): A. C. Larsen, S. N. Liddick, Artemis Spyrou, M. Guttormsen, F. L. Bello Garrote, J. E. Midtbø, T. Renstrøm
Published in: Nuclei in the Cosmos XV, Issue 219, 2019, Page(s) 137-140
DOI: 10.1007/978-3-030-13876-9_22