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  1. Article ; Online: Statistical (n,

    Lewis, R / Couture, A / Liddick, S N / Spyrou, A / Bleuel, D L / Campo, L Crespo / Crider, B P / Dombos, A C / Guttormsen, M / Kawano, T / Larsen, A C / Lewis, A M / Mosby, S / Perdikakis, G / Prokop, C J / Quinn, S J / Renstrøm, T / Siem, S

    The European physical journal. A, Hadrons and nuclei

    2023  Volume 59, Issue 3, Page(s) 42

    Abstract: Neutron-capture cross sections of neutron-rich nuclei are calculated using a Hauser-Feshbach model when direct experimental cross sections cannot be obtained. A number of codes to perform these calculations exist, and each makes different assumptions ... ...

    Abstract Neutron-capture cross sections of neutron-rich nuclei are calculated using a Hauser-Feshbach model when direct experimental cross sections cannot be obtained. A number of codes to perform these calculations exist, and each makes different assumptions about the underlying nuclear physics. We investigated the systematic uncertainty associated with the choice of Hauser-Feshbach code used to calculate the neutron-capture cross section of a short-lived nucleus. The neutron-capture cross section for
    Supplementary information: The online version contains supplementary material available at 10.1140/epja/s10050-023-00920-0.
    Language English
    Publishing date 2023-03-09
    Publishing country France
    Document type Journal Article
    ZDB-ID 1459066-9
    ISSN 1434-601X ; 1434-6001
    ISSN (online) 1434-601X
    ISSN 1434-6001
    DOI 10.1140/epja/s10050-023-00920-0
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  2. Article ; Online: Validity of the Generalized Brink-Axel Hypothesis in (238)Np.

    Guttormsen, M / Larsen, A C / Görgen, A / Renstrøm, T / Siem, S / Tornyi, T G / Tveten, G M

    Physical review letters

    2016  Volume 116, Issue 1, Page(s) 12502

    Abstract: We analyze primary γ-ray spectra of the odd-odd (238)Np nucleus extracted from (237)Np(d,pγ)(238)Np coincidence data measured at the Oslo Cyclotron Laboratory. The primary γ spectra cover an excitation-energy region of 0≤E(I)≤5.4  MeV, and allow us to ... ...

    Abstract We analyze primary γ-ray spectra of the odd-odd (238)Np nucleus extracted from (237)Np(d,pγ)(238)Np coincidence data measured at the Oslo Cyclotron Laboratory. The primary γ spectra cover an excitation-energy region of 0≤E(I)≤5.4  MeV, and allow us to perform a detailed study of the γ-ray strength as a function of excitation energy. Hence, we can test the validity of the generalized Brink-Axel hypothesis, which, in its strictest form, claims no excitation-energy dependence on the γ strength. In this work, using the available high-quality (238)Np data, we show that the γ-ray strength function is to a very large extent independent of the initial and final states. Thus, for the first time, the generalized Brink-Axel hypothesis is experimentally verified for γ transitions between states in the quasicontinuum region, not only for specific collective resonances, but also for the full strength below the neutron separation energy. Based on our findings, the necessary criteria for the generalized Brink-Axel hypothesis to be fulfilled are outlined.
    Language English
    Publishing date 2016-01-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.116.012502
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  3. Article ; Online: Radiative Width of the Hoyle State from γ-Ray Spectroscopy.

    Kibédi, T / Alshahrani, B / Stuchbery, A E / Larsen, A C / Görgen, A / Siem, S / Guttormsen, M / Giacoppo, F / Morales, A I / Sahin, E / Tveten, G M / Garrote, F L Bello / Campo, L Crespo / Eriksen, T K / Klintefjord, M / Maharramova, S / Nyhus, H-T / Tornyi, T G / Renstrøm, T /
    Paulsen, W

    Physical review letters

    2020  Volume 125, Issue 18, Page(s) 182701

    Abstract: The cascading 3.21 and 4.44 MeV electric quadrupole transitions have been observed from the Hoyle state at 7.65 MeV excitation energy in ^{12}C, excited by the ^{12}C(p,p^{'}) reaction at 10.7 MeV proton energy. From the proton-γ-γ triple coincidence ... ...

    Abstract The cascading 3.21 and 4.44 MeV electric quadrupole transitions have been observed from the Hoyle state at 7.65 MeV excitation energy in ^{12}C, excited by the ^{12}C(p,p^{'}) reaction at 10.7 MeV proton energy. From the proton-γ-γ triple coincidence data, a value of Γ_{rad}/Γ=6.2(6)×10^{-4} was obtained for the radiative branching ratio. Using our results, together with Γ_{π}^{E0}/Γ from Eriksen et al. [Phys. Rev. C 102, 024320 (2020)PRVCAN2469-998510.1103/PhysRevC.102.024320] and the currently adopted Γ_{π}(E0) values, the radiative width of the Hoyle state is determined as Γ_{rad}=5.1(6)×10^{-3}  eV. This value is about 34% higher than the currently adopted value and will impact models of stellar evolution and nucleosynthesis.
    Language English
    Publishing date 2020-11-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.125.182701
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  4. Book: Optimal dynamic taxation

    Renström, Thomas

    (Department of Economics discussion paper / the University of Birmingham ; 99,21)

    1999  

    Author's details Thomas Renström
    Series title Department of Economics discussion paper / the University of Birmingham ; 99,21
    Keywords Optimale Besteuerung ; Overlapping Generations ; Theorie
    Language English
    Size 28 S, graph. Darst
    Publishing place Birmingham
    Document type Book
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  5. Article ; Online: Publisher's Note: Experimental Neutron Capture Rate Constraint Far from Stability [Phys. Rev. Lett. 116, 242502 (2016)].

    Liddick, S N / Spyrou, A / Crider, B P / Naqvi, F / Larsen, A C / Guttormsen, M / Mumpower, M / Surman, R / Perdikakis, G / Bleuel, D L / Couture, A / Crespo Campo, L / Dombos, A C / Lewis, R / Mosby, S / Nikas, S / Prokop, C J / Renstrom, T / Rubio, B /
    Siem, S / Quinn, S J

    Physical review letters

    2019  Volume 122, Issue 12, Page(s) 129902

    Abstract: This corrects the article DOI: 10.1103/PhysRevLett.116.242502. ...

    Abstract This corrects the article DOI: 10.1103/PhysRevLett.116.242502.
    Language English
    Publishing date 2019-04-12
    Publishing country United States
    Document type Journal Article ; Published Erratum
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.122.129902
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  6. Book ; Online: Strong enhancement of level densities in the crossover from spherical to deformed neodymium isotopes

    Guttormsen, M. / Alhassid, Y. / Ryssens, W. / Ay, K. O. / Ozgur, M. / Algin, E. / Larsen, A. C. / Garrote, F. L. Bello / Campo, L. Crespo / Dahl-Jacobsen, T. / Görgen, A. / Hagen, T. W. / Ingeberg, V. W. / Kheswa, B. V. / Klintefjord, M. / Midtbø, J. E. / Modamio, V. / Renstrøm, T. / Sahin, E. /
    Siem, S. / Tveten, G. M. / Zeiser, F.

    2020  

    Abstract: Understanding the evolution of level densities in the crossover from spherical to well-deformed nuclei has been a long-standing problem in nuclear physics. We measure nuclear level densities for a chain of neodymium isotopes $^{142,144-151}$Nd which ... ...

    Abstract Understanding the evolution of level densities in the crossover from spherical to well-deformed nuclei has been a long-standing problem in nuclear physics. We measure nuclear level densities for a chain of neodymium isotopes $^{142,144-151}$Nd which exhibit such a crossover. These results represent to date the most complete data set of nuclear level densities for an isotopic chain between neutron shell-closure and towards mid-shell. We observe a strong increase of the level densities along the chain with an overall increase by a factor of $\approx 170$ at an excitation energy of 7.5 MeV and saturation around mass 150. Level densities calculated by the shell model Monte Carlo (SMMC) are in excellent agreement with these experimental results. Based on our experimental and theoretical findings, we offer an explanation of the observed mass dependence of the level densities in terms of the intrinsic single-particle level density and the collective enhancement.

    Comment: 7 pages, 4 figures
    Keywords Nuclear Experiment
    Subject code 612
    Publishing date 2020-12-03
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Book: Endogenous firm objectives

    Renstrom, Thomas / Yalçın, Erkan

    (Working paper / W. Allen Wallis Institute of Political Economy ; 27)

    2002  

    Author's details Thomas Renstrom and Erkan Yalcin
    Series title Working paper / W. Allen Wallis Institute of Political Economy ; 27
    Keywords Unternehmen ; Monopol ; Unvollkommener Wettbewerb ; Aktionäre ; Theorie
    Language English
    Size 29 S
    Publishing place Rochester, NY
    Document type Book
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  8. Book: When to tax labor?

    Renstrom, Thomas / Basu, Parantap

    (Working paper / W. Allen Wallis Institute of Political Economy ; 28)

    2001  

    Author's details Thomas Renstrom and Parantap Basu
    Series title Working paper / W. Allen Wallis Institute of Political Economy ; 28
    Keywords Optimale Besteuerung ; Lohnsteuer ; Einkommensteuer ; Arbeitsangebot ; Steuertheorie
    Language English
    Size 26 S
    Publishing place Rochester, NY
    Document type Book
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  9. Article: Fourteen novel human members of mitochondrial solute carrier family 25 (SLC25) widely expressed in the central nervous system.

    Haitina, Tatjana / Lindblom, Jonas / Renström, Thomas / Fredriksson, Robert

    Genomics

    2006  Volume 88, Issue 6, Page(s) 779–790

    Abstract: Members of the solute carrier family 25 (SLC25) are known to transport molecules over the mitochondrial membrane. In this paper we present 14 novel members of SLC25 family in human. These were provided with following gene symbols by the HGNC: SLC25A32, ... ...

    Abstract Members of the solute carrier family 25 (SLC25) are known to transport molecules over the mitochondrial membrane. In this paper we present 14 novel members of SLC25 family in human. These were provided with following gene symbols by the HGNC: SLC25A32, SLC25A33, SLC25A34, SLC25A35, SLC25A37, SLC25A38, SLC25A39, SLC25A40, SLC25A41, SLC25A42, SLC25A43, SLC25A44, SLC25A45, and SLC25A46. We also identified the orthologues for these genes in rat and mouse. Moreover, we found yeast orthologues for 9 of these genes and show that the predicted substrate binding residues are highly conserved in the human and yeast proteins. We performed a comprehensive tissue localization study for 9 of these genes on a panel of 30 rat tissues with quantitative real-time polymerse chain reaction. We detected their mRNA in a wide number of tissues, both in brain and in periphery. This study provides an overall roadmap of the repertoire of the SLC25 family in mammals, showing that there are at least 46 genes in the human genome coding for mitochondrial transporters.
    MeSH term(s) Animals ; Biological Transport ; Brain/metabolism ; Central Nervous System/metabolism ; Computational Biology/methods ; Female ; Humans ; Male ; Markov Chains ; Membrane Transport Proteins/genetics ; Membrane Transport Proteins/metabolism ; Mice ; Mitochondria/metabolism ; Multigene Family ; Phylogeny ; Polymerase Chain Reaction/methods ; Rats ; Rats, Sprague-Dawley ; Synteny
    Chemical Substances Membrane Transport Proteins
    Language English
    Publishing date 2006-12
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 356334-0
    ISSN 1089-8646 ; 0888-7543
    ISSN (online) 1089-8646
    ISSN 0888-7543
    DOI 10.1016/j.ygeno.2006.06.016
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    Zs.A 2367: Show issues Location:
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  10. Book: Inequality, environmental protection and growth

    Marsiliani, Laura / Renström, T. I

    (Nota di lavoro / Fondazione Eni Enrico Mattei : CLIM, Climate change modelling and policy ; 2000,36)

    2000  

    Author's details L. Marsiliani and T. I. Rengström
    Series title Nota di lavoro / Fondazione Eni Enrico Mattei : CLIM, Climate change modelling and policy ; 2000,36
    Keywords Umweltschutz ; Einkommensverteilung ; Overlapping Generations ; Wirtschaftswachstum ; Theorie
    Language English
    Size 46 S
    Publishing place Milano
    Document type Book
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