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Title: Big bang nucleosynthesis revisited via Trojan Horse method measurements

Nuclear reaction rates are among the most important input for understanding primordial nucleosynthesis and, therefore, for a quantitative description of the early universe. An up-to-date compilation of direct cross-sections of {sup 2}H(d, p){sup 3}H, {sup 2}H(d, n){sup 3}He, {sup 7}Li(p, α){sup 4}He, and {sup 3}He(d, p){sup 4}He reactions is given. These are among the most uncertain cross-sections used and input for big bang nucleosynthesis calculations. Their measurements through the Trojan Horse method are also reviewed and compared with direct data. The reaction rates and the corresponding recommended errors in this work were used as input for primordial nucleosynthesis calculations to evaluate their impact on the {sup 2}H, {sup 3,4}He, and {sup 7}Li primordial abundances, which are then compared with observations.
Authors:
; ; ; ;  [1] ; ;  [2] ;  [3] ;  [4]
  1. INFN—Laboratori Nazionali del Sud, Via Santa Sofia 62, I-95123 Catania (Italy)
  2. Department of Physics and Astronomy, Texas A and M University, Commerce, TX 75025 (United States)
  3. Dipartimento di Fisica e Astronomia, Università degli Studi di Catania, Via Santa Sofia 64, I-95123 Catania (Italy)
  4. Cyclotron Institute, Texas A and M University, College Station, TX 77843 (United States)
Publication Date:
OSTI Identifier:
22356922
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 786; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ABUNDANCE; COMPARATIVE EVALUATIONS; CROSS SECTIONS; DEUTERIUM TARGET; DEUTERON REACTIONS; HELIUM 3; HELIUM 3 TARGET; HELIUM 4; LITHIUM 7 TARGET; NEUTRON EMISSION; NUCLEAR REACTIONS; NUCLEOSYNTHESIS; PROTON REACTIONS; PROTON-EMISSION DECAY; REACTION KINETICS; TRITIUM; UNIVERSE