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Title: Bayesian Estimation Of Thermonuclear Reaction Rates

Journal Article · · The Astrophysical Journal (Online)
 [1];  [2];  [3];  [4];  [5]
  1. Univ. of North Carolina, Chapel Hill, NC (United States). Dept. of Physics & Astronomy; RTI International, Research Triangle Park, NC (United States)
  2. Univ. of North Carolina, Chapel Hill, NC (United States). Dept. of Physics & Astronomy
  3. Centre National de la Recherche Scientifique (CNRS), Orsay (France). Inst. National de Physique Nucleaire et de Physique des Particules (IN2P3), Centre de Sciences Nucleaires et de Sciences de la Matiere (CSNSM)
  4. Arizona State Univ., Tempe, AZ (United States). School of Earth and Space Exploration; Joint Inst. for Nuclear Astrophysics (JINA), East Lansing, MI (United States)
  5. Arizona State Univ., Tempe, AZ (United States). School of Earth and Space Exploration

The problem of estimating non-resonant astrophysical S-factors and thermonuclear reaction rates, based on measured nuclear cross sections, is of major interest for nuclear energy generation, neutrino physics, and element synthesis. Many different methods have been applied to this problem in the past, almost all of them based on traditional statistics. Bayesian methods, on the other hand, are now in widespread use in the physical sciences. In astronomy, for example, Bayesian statistics is applied to the observation of extrasolar planets, gravitational waves, and Type Ia supernovae. However, nuclear physics, in particular, has been slow to adopt Bayesian methods. We present astrophysical S-factors and reaction rates based on Bayesian statistics. We develop a framework that incorporates robust parameter estimation, systematic effects, and non-Gaussian uncertainties in a consistent manner. The method is applied to the reactions d(p,$$γ$$)3He, 3He(3He,2p)4He, and 3He(α,$$γ$$)7Be, important for deuterium burning, solar neutrinos, and Big Bang nucleosynthesis.

Research Organization:
University of North Carolina, Chapel Hill, NC (United States); Duke Univ., Durham, NC (United States). Triangle Universities Nuclear Laboratory
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
FG02-97ER41041; FG02-97ER41033
OSTI ID:
1537160
Alternate ID(s):
OSTI ID: 1660975; OSTI ID: 1660977
Journal Information:
The Astrophysical Journal (Online), Vol. 831, Issue 1; ISSN 1538-4357
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 34 works
Citation information provided by
Web of Science

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Cited By (5)

Big-Bang Nucleosynthesis after Planck journal March 2020
A New Generation of Standard Solar Models journal January 2017
Astrophysical S -factors, Thermonuclear Rates, and Electron Screening Potential for the 3 He(d,p) 4 He Big Bang Reaction via a Hierarchical Bayesian Model journal February 2019
Big Bang Nucleosynthesis with an Inhomogeneous Primordial Magnetic Field Strength journal February 2019
Big-Bang Nucleosynthesis After Planck text January 2019

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