Experimentally Constrained ($n,\gamma $) Reaction Rates Relevant to r- and i-Process Nucleosynthesis

Guttormsen, M.; Larsen, A. C.; Spyrou, A.; Liddick, S. N.

doi:10.5506/aphyspolb.51.667

Title: Experimentally Constrained ($n,\gamma $) Reaction Rates Relevant to r- and i-Process Nucleosynthesis

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Abstract

The element distribution that we observe in the Universe today, tells a fascinating story of nucleosynthesis events that have taken place throughout the 13.7-billion-years-long history starting with the Big Bang. It is known for a long time that radiative neutron-capture reactions play a major role in synthesizing elements heavier than iron. However, many questions remain when it comes to our understanding of neutron-capture processes in extreme stellar environments. In particular, the intermediate and rapid neutron-capture processes are very challenging to describe, as there exist little or no data on the much-needed neutron-capture rates. In this work we discuss possibilities to obtain indirect, experimental constrains on these rates by means of the Oslo and the β-Oslo methods.

Authors:

Guttormsen, M. ^[1]; Larsen, A. C. ^[1]; Spyrou, A. ^[2]; Liddick, S. N. ^[3]

Univ. of Oslo (Norway)
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab., Joint Inst. for Nuclear Astrophysics
Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab.

Publication Date:: Wed Jan 01 00:00:00 EST 2020

Research Org.:: Michigan State Univ., East Lansing, MI (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF); European Cooperation in Science and Technology

OSTI Identifier:: 1657658

Grant/Contract Number:: NA0003221; 637686; OISE-1927130; PHY 1102511; PHY 1430152; PHY 1350234

Resource Type:: Accepted Manuscript

Journal Name:: Acta Physica Polonica. Series B

Additional Journal Information:: Journal Volume: 51; Journal Issue: 3; Conference: XXXVI Mazurian Lakes Conference on Physics, Piaski (Poland), 1-7 Sep 2019; Journal ID: ISSN 0587-4254

Publisher:: Jagiellonian University

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Guttormsen, M., Larsen, A. C., Spyrou, A., and Liddick, S. N. Experimentally Constrained (\(n,\gamma \)) Reaction Rates Relevant to r- and i-Process Nucleosynthesis.  United States: N. p., 2020. 
Web.  doi:10.5506/aphyspolb.51.667.

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                    Guttormsen, M., Larsen, A. C., Spyrou, A., & Liddick, S. N. Experimentally Constrained (\(n,\gamma \)) Reaction Rates Relevant to r- and i-Process Nucleosynthesis.  United States.  https://doi.org/10.5506/aphyspolb.51.667

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                    Guttormsen, M., Larsen, A. C., Spyrou, A., and Liddick, S. N. Wed .  
"Experimentally Constrained (\(n,\gamma \)) Reaction Rates Relevant to r- and i-Process Nucleosynthesis".  United States.  https://doi.org/10.5506/aphyspolb.51.667.  https://www.osti.gov/servlets/purl/1657658.

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@article{osti_1657658,

  title        = {Experimentally Constrained (\(n,\gamma \)) Reaction Rates Relevant to r- and i-Process Nucleosynthesis},

  author       = {Guttormsen, M. and Larsen, A. C. and Spyrou, A. and Liddick, S. N.},

  abstractNote = {The element distribution that we observe in the Universe today, tells a fascinating story of nucleosynthesis events that have taken place throughout the 13.7-billion-years-long history starting with the Big Bang. It is known for a long time that radiative neutron-capture reactions play a major role in synthesizing elements heavier than iron. However, many questions remain when it comes to our understanding of neutron-capture processes in extreme stellar environments. In particular, the intermediate and rapid neutron-capture processes are very challenging to describe, as there exist little or no data on the much-needed neutron-capture rates. In this work we discuss possibilities to obtain indirect, experimental constrains on these rates by means of the Oslo and the β-Oslo methods.},

  doi          = {10.5506/aphyspolb.51.667},

  journal      = {Acta Physica Polonica. Series B},

  number       = 3,

  volume       = 51,

  place        = {United States},

  year         = {Wed Jan 01 00:00:00 EST 2020},

  month        = {Wed Jan 01 00:00:00 EST 2020}

}

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Title: Experimentally Constrained (\(n,\gamma \)) Reaction Rates Relevant to r- and i-Process Nucleosynthesis

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