The 20Ne(d,p)21Ne transfer reaction in relation to the s-process abundances

C. T. Nsangu; A. M. Laird; A. Parikh; P. Adsley; M. D. Birch; A. A. Chen; T. Faestermann; S. P. Fox; B. R. Fulton; R. Hertenberger; D. Irvine; B. P. Kay; R. Longland; S. Manwell; A. St J. Murphy; K. Schmitt; N. De Séréville; J. R. Tomlinson; H. F. Wirth

doi:10.1088/1742-6596/665/1/012026

The ²⁰Ne(d,p)²¹Ne transfer reaction in relation to the s-process abundances

C. T. Nsangu, A. M. Laird, A. Parikh, P. Adsley, M. D. Birch, A. A. Chen, T. Faestermann, S. P. Fox, B. R. Fulton, R. Hertenberger, D. Irvine, B. P. Kay, R. Longland, S. Manwell, A. St J. Murphy, K. Schmitt, N. De Séréville, J. R. Tomlinson, H. F. Wirth

Advanced Radiation Detection, Imaging, D

Research output: Contribution to journal › Conference article › peer-review

Abstract

A study of the ²⁰Ne(d,p)²¹Ne transfer reaction was performed using the Quadrupole Dipole Dipole Dipole (Q3D) magnetic spectrograph in Garching, Germany. The experiment probed excitation energies in ²¹Ne ranging from 6.9 MeV to 8.5 MeV. The aim was to investigate the spectroscopic information of ²¹Ne within the Gamow window of core helium burning in massive stars. Further information in this region will help reduce the uncertainties on the extrapolation down to Gamow window cross sections of the ¹⁷O(α,γ)²¹Ne reaction. In low metallicity stars, this reaction has a direct impact on s-process abundances by determining the fate of ¹⁶O as either a neutron poison or a neutron absorber. The experiment used a 22-MeV deuteron beam, with intensities varying from 0.5-1 μA, and an implanted target of ²⁰Ne of 7 μg/cm² in 40 μg/cm² carbon foils. Sixteen ²¹Ne peaks have been identified in the E_x = 6.9-8.5 MeV range, of which only thirteen peaks correspond to known states. Only the previously-known E_x = 7.960 MeV state was observed within the Gamow window.

Original language	English
Article number	012026
Journal	Journal of Physics: Conference Series
Volume	665
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/665/1/012026
State	Published - Jan 5 2016
Event	6th Nuclear Physics in Astrophysics, NPA 2013 - Lisbon, Portugal Duration: May 19 2013 → May 24 2013

Funding

Funders	Funder number
Science and Technology Facilities Council	ST/L005727/1

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10.1088/1742-6596/665/1/012026

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Nsangu, C. T., Laird, A. M., Parikh, A., Adsley, P., Birch, M. D., Chen, A. A., Faestermann, T., Fox, S. P., Fulton, B. R., Hertenberger, R., Irvine, D., Kay, B. P., Longland, R., Manwell, S., Murphy, A. S. J., Schmitt, K., De Séréville, N., Tomlinson, J. R., & Wirth, H. F. (2016). The ²⁰Ne(d,p)²¹Ne transfer reaction in relation to the s-process abundances. Journal of Physics: Conference Series, 665(1), Article 012026. https://doi.org/10.1088/1742-6596/665/1/012026

@article{e72cbaa06c04493cba0f9c4ed8eaf0f2,

title = "The 20Ne(d,p)21Ne transfer reaction in relation to the s-process abundances",

abstract = "A study of the 20Ne(d,p)21Ne transfer reaction was performed using the Quadrupole Dipole Dipole Dipole (Q3D) magnetic spectrograph in Garching, Germany. The experiment probed excitation energies in 21Ne ranging from 6.9 MeV to 8.5 MeV. The aim was to investigate the spectroscopic information of 21Ne within the Gamow window of core helium burning in massive stars. Further information in this region will help reduce the uncertainties on the extrapolation down to Gamow window cross sections of the 17O(α,γ)21Ne reaction. In low metallicity stars, this reaction has a direct impact on s-process abundances by determining the fate of 16O as either a neutron poison or a neutron absorber. The experiment used a 22-MeV deuteron beam, with intensities varying from 0.5-1 μA, and an implanted target of 20Ne of 7 μg/cm2 in 40 μg/cm2 carbon foils. Sixteen 21Ne peaks have been identified in the Ex = 6.9-8.5 MeV range, of which only thirteen peaks correspond to known states. Only the previously-known Ex = 7.960 MeV state was observed within the Gamow window.",

author = "Nsangu, {C. T.} and Laird, {A. M.} and A. Parikh and P. Adsley and Birch, {M. D.} and Chen, {A. A.} and T. Faestermann and Fox, {S. P.} and Fulton, {B. R.} and R. Hertenberger and D. Irvine and Kay, {B. P.} and R. Longland and S. Manwell and Murphy, {A. St J.} and K. Schmitt and {De S{\'e}r{\'e}ville}, N. and Tomlinson, {J. R.} and Wirth, {H. F.}",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 6th Nuclear Physics in Astrophysics, NPA 2013 ; Conference date: 19-05-2013 Through 24-05-2013",

year = "2016",

month = jan,

day = "5",

doi = "10.1088/1742-6596/665/1/012026",

language = "English",

volume = "665",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

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Nsangu, CT, Laird, AM, Parikh, A, Adsley, P, Birch, MD, Chen, AA, Faestermann, T, Fox, SP, Fulton, BR, Hertenberger, R, Irvine, D, Kay, BP, Longland, R, Manwell, S, Murphy, ASJ, Schmitt, K, De Séréville, N, Tomlinson, JR & Wirth, HF 2016, 'The ²⁰Ne(d,p)²¹Ne transfer reaction in relation to the s-process abundances', Journal of Physics: Conference Series, vol. 665, no. 1, 012026. https://doi.org/10.1088/1742-6596/665/1/012026

TY - JOUR

T1 - The 20Ne(d,p)21Ne transfer reaction in relation to the s-process abundances

AU - Nsangu, C. T.

AU - Laird, A. M.

AU - Parikh, A.

AU - Adsley, P.

AU - Birch, M. D.

AU - Chen, A. A.

AU - Faestermann, T.

AU - Fox, S. P.

AU - Fulton, B. R.

AU - Hertenberger, R.

AU - Irvine, D.

AU - Kay, B. P.

AU - Longland, R.

AU - Manwell, S.

AU - Murphy, A. St J.

AU - Schmitt, K.

AU - De Séréville, N.

AU - Tomlinson, J. R.

AU - Wirth, H. F.

PY - 2016/1/5

Y1 - 2016/1/5

N2 - A study of the 20Ne(d,p)21Ne transfer reaction was performed using the Quadrupole Dipole Dipole Dipole (Q3D) magnetic spectrograph in Garching, Germany. The experiment probed excitation energies in 21Ne ranging from 6.9 MeV to 8.5 MeV. The aim was to investigate the spectroscopic information of 21Ne within the Gamow window of core helium burning in massive stars. Further information in this region will help reduce the uncertainties on the extrapolation down to Gamow window cross sections of the 17O(α,γ)21Ne reaction. In low metallicity stars, this reaction has a direct impact on s-process abundances by determining the fate of 16O as either a neutron poison or a neutron absorber. The experiment used a 22-MeV deuteron beam, with intensities varying from 0.5-1 μA, and an implanted target of 20Ne of 7 μg/cm2 in 40 μg/cm2 carbon foils. Sixteen 21Ne peaks have been identified in the Ex = 6.9-8.5 MeV range, of which only thirteen peaks correspond to known states. Only the previously-known Ex = 7.960 MeV state was observed within the Gamow window.

AB - A study of the 20Ne(d,p)21Ne transfer reaction was performed using the Quadrupole Dipole Dipole Dipole (Q3D) magnetic spectrograph in Garching, Germany. The experiment probed excitation energies in 21Ne ranging from 6.9 MeV to 8.5 MeV. The aim was to investigate the spectroscopic information of 21Ne within the Gamow window of core helium burning in massive stars. Further information in this region will help reduce the uncertainties on the extrapolation down to Gamow window cross sections of the 17O(α,γ)21Ne reaction. In low metallicity stars, this reaction has a direct impact on s-process abundances by determining the fate of 16O as either a neutron poison or a neutron absorber. The experiment used a 22-MeV deuteron beam, with intensities varying from 0.5-1 μA, and an implanted target of 20Ne of 7 μg/cm2 in 40 μg/cm2 carbon foils. Sixteen 21Ne peaks have been identified in the Ex = 6.9-8.5 MeV range, of which only thirteen peaks correspond to known states. Only the previously-known Ex = 7.960 MeV state was observed within the Gamow window.

UR - http://www.scopus.com/inward/record.url?scp=84962506585&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/665/1/012026

DO - 10.1088/1742-6596/665/1/012026

M3 - Conference article

AN - SCOPUS:84962506585

SN - 1742-6588

VL - 665

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012026

T2 - 6th Nuclear Physics in Astrophysics, NPA 2013

Y2 - 19 May 2013 through 24 May 2013

ER -

The ²⁰Ne(d,p)²¹Ne transfer reaction in relation to the s-process abundances

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