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First Direct Measurement of
Randhawa, J S; Ayyad, Y; Mittig, W; Meisel, Z; Ahn, T; Aguilar, S; Alvarez-Pol, H; Bardayan, D W; Bazin, D; Beceiro-Novo, S; Blankstein, D; Carpenter, L; Cortesi, M; Cortina-Gil, D; Gastis, P; Hall, M; Henderson, S; Kolata, J J; Mijatovic, T; Ndayisabye, F; O'Malley, P; Pereira, J; Pierre, A; Robert, H; Santamaria, C; Schatz, H; Smith, J; Watwood, N; Zamora, J C.
Afiliación
  • Randhawa JS; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Ayyad Y; Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA.
  • Mittig W; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Meisel Z; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Ahn T; Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824-1321, USA.
  • Aguilar S; Institute of Nuclear and Particle Physics, Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA.
  • Alvarez-Pol H; Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556-5670, USA.
  • Bardayan DW; Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556-5670, USA.
  • Bazin D; IGFAE, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
  • Beceiro-Novo S; Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556-5670, USA.
  • Blankstein D; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Carpenter L; Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824-1321, USA.
  • Cortesi M; Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556-5670, USA.
  • Cortina-Gil D; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Gastis P; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Hall M; IGFAE, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
  • Henderson S; Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements, Michigan State University, East Lansing, Michigan 48824, USA.
  • Kolata JJ; Department of Physics, Central Michigan University, Mount Pleasant, Michigan 48859, USA.
  • Mijatovic T; Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556-5670, USA.
  • Ndayisabye F; Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556-5670, USA.
  • O'Malley P; Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556-5670, USA.
  • Pereira J; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Pierre A; Ruder Boskovic Institute, HR-10002 Zagreb, Croatia.
  • Robert H; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Santamaria C; Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556-5670, USA.
  • Schatz H; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Smith J; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Watwood N; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
  • Zamora JC; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
Phys Rev Lett ; 125(20): 202701, 2020 Nov 13.
Article en En | MEDLINE | ID: mdl-33258618
Type-I x-ray bursts can reveal the properties of an accreting neutron star system when compared with astrophysics model calculations. However, model results are sensitive to a handful of uncertain nuclear reaction rates, such as ^{22}Mg(α,p). We report the first direct measurement of ^{22}Mg(α,p), performed with the Active Target Time Projection Chamber. The corresponding astrophysical reaction rate is orders of magnitude larger than determined from a previous indirect measurement in a broad temperature range. Our new measurement suggests a less-compact neutron star in the source GS1826-24.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos