Coulomb dissociation of N 20,21

R3B Collaboration

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Neutron-rich light nuclei and their reactions play an important role in the creation of chemical elements. Here, data from a Coulomb dissociation experiment on N20,21 are reported. Relativistic N20,21 ions impinged on a lead target and the Coulomb dissociation cross section was determined in a kinematically complete experiment. Using the detailed balance theorem, the N19(n,γ)N20 and N20(n,γ)N21 excitation functions and thermonuclear reaction rates have been determined. The N19(n,γ)N20 rate is up to a factor of 5 higher at T<1GK with respect to previous theoretical calculations, leading to a 10% decrease in the predicted fluorine abundance.

Original languageEnglish
Article number065807
JournalPhysical Review C - Nuclear Physics
Volume93
Issue number6
DOIs
Publication statusPublished - Jun 30 2016

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dissociation
thermonuclear reactions
chemical elements
fluorine
reaction kinetics
theorems
neutrons
nuclei
cross sections
excitation
ions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Coulomb dissociation of N 20,21. / R3B Collaboration.

In: Physical Review C - Nuclear Physics, Vol. 93, No. 6, 065807, 30.06.2016.

Research output: Contribution to journalArticle

R3B Collaboration. / Coulomb dissociation of N 20,21. In: Physical Review C - Nuclear Physics. 2016 ; Vol. 93, No. 6.
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abstract = "Neutron-rich light nuclei and their reactions play an important role in the creation of chemical elements. Here, data from a Coulomb dissociation experiment on N20,21 are reported. Relativistic N20,21 ions impinged on a lead target and the Coulomb dissociation cross section was determined in a kinematically complete experiment. Using the detailed balance theorem, the N19(n,γ)N20 and N20(n,γ)N21 excitation functions and thermonuclear reaction rates have been determined. The N19(n,γ)N20 rate is up to a factor of 5 higher at T<1GK with respect to previous theoretical calculations, leading to a 10{\%} decrease in the predicted fluorine abundance.",
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AU - Alvarez-Pol, Hector

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AU - Chakraborty, S.

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AU - Chulkov, Leonid

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AU - Datta Pramanik, Ushasi

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AB - Neutron-rich light nuclei and their reactions play an important role in the creation of chemical elements. Here, data from a Coulomb dissociation experiment on N20,21 are reported. Relativistic N20,21 ions impinged on a lead target and the Coulomb dissociation cross section was determined in a kinematically complete experiment. Using the detailed balance theorem, the N19(n,γ)N20 and N20(n,γ)N21 excitation functions and thermonuclear reaction rates have been determined. The N19(n,γ)N20 rate is up to a factor of 5 higher at T<1GK with respect to previous theoretical calculations, leading to a 10% decrease in the predicted fluorine abundance.

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