Measurement of 73Ge(n,g) cross sections and implications for stellar nucleosynthesis

Claudia Lederer-Woods; the n_TOF Collaboration

doi:10.1016/j.physletb.2019.01.045

Measurement of 73Ge(n,g) cross sections and implications for stellar nucleosynthesis

Claudia Lederer-Woods, the n_TOF Collaboration

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

73Ge(n,g) cross sections were measured at the neutron time-of-flight facility n_TOF at CERN up to neutron energies of 300 keV, providing for the first time experimental data above 8 keV. Results indicate that the stellar cross section at kT = 30 keV is 1.5 to 1.7 times higher than most theoretical predictions. The new cross sections result in a substantial decrease of 73Ge produced in stars, which would explain the low isotopic abundance of 73Ge in the solar system.

Original language	English
Pages (from-to)	458-465
Journal	Physics Letters B
Volume	790
DOIs	https://doi.org/10.1016/j.physletb.2019.01.045
Publication status	Published - 30 Jan 2019

Keywords / Materials (for Non-textual outputs)

nucl-ex

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10.1016/j.physletb.2019.01.045

Ge_revised_corrAccepted author manuscript, 429 KB

DoRES: Direct Measuerments of key nuclear reactions for the creation of Elements in Stars
Lederer-Woods, C. (Principal Investigator)
EU government bodies
1/06/16 → 30/11/23
Project: Research
Measurements of Key Reactions for the Production and Destruction of Elements in Stars
Lederer-Woods, C. (Principal Investigator)
STFC
1/12/15 → 28/11/22
Project: Research

Cite this

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title = "Measurement of 73Ge(n,g) cross sections and implications for stellar nucleosynthesis",

abstract = " 73Ge(n,g) cross sections were measured at the neutron time-of-flight facility n\_TOF at CERN up to neutron energies of 300 keV, providing for the first time experimental data above 8 keV. Results indicate that the stellar cross section at kT = 30 keV is 1.5 to 1.7 times higher than most theoretical predictions. The new cross sections result in a substantial decrease of 73Ge produced in stars, which would explain the low isotopic abundance of 73Ge in the solar system. ",

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author = "Claudia Lederer-Woods and Collaboration, \{the n\_TOF\}",

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doi = "10.1016/j.physletb.2019.01.045",

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AU - Lederer-Woods, Claudia

AU - Collaboration, the n_TOF

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Y1 - 2019/1/30

N2 - 73Ge(n,g) cross sections were measured at the neutron time-of-flight facility n_TOF at CERN up to neutron energies of 300 keV, providing for the first time experimental data above 8 keV. Results indicate that the stellar cross section at kT = 30 keV is 1.5 to 1.7 times higher than most theoretical predictions. The new cross sections result in a substantial decrease of 73Ge produced in stars, which would explain the low isotopic abundance of 73Ge in the solar system.

AB - 73Ge(n,g) cross sections were measured at the neutron time-of-flight facility n_TOF at CERN up to neutron energies of 300 keV, providing for the first time experimental data above 8 keV. Results indicate that the stellar cross section at kT = 30 keV is 1.5 to 1.7 times higher than most theoretical predictions. The new cross sections result in a substantial decrease of 73Ge produced in stars, which would explain the low isotopic abundance of 73Ge in the solar system.

KW - nucl-ex

U2 - 10.1016/j.physletb.2019.01.045

DO - 10.1016/j.physletb.2019.01.045

M3 - Article

SN - 0370-2693

VL - 790

SP - 458

EP - 465

JO - Physics Letters B

JF - Physics Letters B

ER -

Measurement of 73Ge(n,g) cross sections and implications for stellar nucleosynthesis

Abstract

Keywords / Materials (for Non-textual outputs)

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Projects

DoRES: Direct Measuerments of key nuclear reactions for the creation of Elements in Stars

Measurements of Key Reactions for the Production and Destruction of Elements in Stars

Cite this