Ratio of S factors for (p, γ) reactions on 12C and 13C at astrophysically relevant energies

C. D. Nesaraja; C. R. Brune; B. T. Crowley; J. H. Kelley; S. O. Nelson; R. M. Prior; K. Sabourov; D. R. Tilley; A. Tonchev; H. R. Weller

doi:10.1103/PhysRevC.64.065804

Ratio of S factors for (p, γ) reactions on ¹²C and ¹³C at astrophysically relevant energies

C. D. Nesaraja
, C. R. Brune
, B. T. Crowley
, J. H. Kelley
, S. O. Nelson
, R. M. Prior
, K. Sabourov
, D. R. Tilley
, A. Tonchev
, H. R. Weller

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

13 Scopus citations

Abstract

We present measurements of the ¹²C(p, γ₀)¹³N/¹³C(p, γ₀)¹⁴N S factor ratio at E_p=160 keV. The overall result of 0.33±0.03 is in good agreement with the value of this ratio obtained from previous experimental values of the S factors for the ¹²C(p, γ₀) ¹³N and the ¹³C(p, γ₀) ¹⁴N reactions. A value for the total S factor ratio of S[¹²C(p, γ_total)]/S[¹³C(p, γ_total)] = 0.24±0.03 is computed by correcting the ¹³C(p, γ₀) S factor for transitions to the other intermediate states. The direct + resonance model calculation of this ratio and the impact on the CNO cycle are also explored.

Original language	English
Article number	065804
Pages (from-to)	658041-658047
Number of pages	7
Journal	Physical Review C - Nuclear Physics
Volume	64
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.64.065804
State	Published - Dec 2001
Externally published	Yes

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10.1103/PhysRevC.64.065804

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@article{1c1022c88dbe4b5e853efd4b812c5dd2,

title = "Ratio of S factors for (p, γ) reactions on 12C and 13C at astrophysically relevant energies",

abstract = "We present measurements of the 12C(p, γ0)13N/13C(p, γ0)14N S factor ratio at Ep=160 keV. The overall result of 0.33±0.03 is in good agreement with the value of this ratio obtained from previous experimental values of the S factors for the 12C(p, γ0) 13N and the 13C(p, γ0) 14N reactions. A value for the total S factor ratio of S[12C(p, γtotal)]/S[13C(p, γtotal)] = 0.24±0.03 is computed by correcting the 13C(p, γ0) S factor for transitions to the other intermediate states. The direct + resonance model calculation of this ratio and the impact on the CNO cycle are also explored.",

author = "Nesaraja, \{C. D.\} and Brune, \{C. R.\} and Crowley, \{B. T.\} and Kelley, \{J. H.\} and Nelson, \{S. O.\} and Prior, \{R. M.\} and K. Sabourov and Tilley, \{D. R.\} and A. Tonchev and Weller, \{H. R.\}",

year = "2001",

month = dec,

doi = "10.1103/PhysRevC.64.065804",

language = "English",

volume = "64",

pages = "658041--658047",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "6",

}

TY - JOUR

T1 - Ratio of S factors for (p, γ) reactions on 12C and 13C at astrophysically relevant energies

AU - Nesaraja, C. D.

AU - Brune, C. R.

AU - Crowley, B. T.

AU - Kelley, J. H.

AU - Nelson, S. O.

AU - Prior, R. M.

AU - Sabourov, K.

AU - Tilley, D. R.

AU - Tonchev, A.

AU - Weller, H. R.

PY - 2001/12

Y1 - 2001/12

N2 - We present measurements of the 12C(p, γ0)13N/13C(p, γ0)14N S factor ratio at Ep=160 keV. The overall result of 0.33±0.03 is in good agreement with the value of this ratio obtained from previous experimental values of the S factors for the 12C(p, γ0) 13N and the 13C(p, γ0) 14N reactions. A value for the total S factor ratio of S[12C(p, γtotal)]/S[13C(p, γtotal)] = 0.24±0.03 is computed by correcting the 13C(p, γ0) S factor for transitions to the other intermediate states. The direct + resonance model calculation of this ratio and the impact on the CNO cycle are also explored.

AB - We present measurements of the 12C(p, γ0)13N/13C(p, γ0)14N S factor ratio at Ep=160 keV. The overall result of 0.33±0.03 is in good agreement with the value of this ratio obtained from previous experimental values of the S factors for the 12C(p, γ0) 13N and the 13C(p, γ0) 14N reactions. A value for the total S factor ratio of S[12C(p, γtotal)]/S[13C(p, γtotal)] = 0.24±0.03 is computed by correcting the 13C(p, γ0) S factor for transitions to the other intermediate states. The direct + resonance model calculation of this ratio and the impact on the CNO cycle are also explored.

UR - https://www.scopus.com/pages/publications/4243814469

U2 - 10.1103/PhysRevC.64.065804

DO - 10.1103/PhysRevC.64.065804

M3 - Article

AN - SCOPUS:4243814469

SN - 0556-2813

VL - 64

SP - 658041

EP - 658047

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 6

M1 - 065804

ER -

Ratio of S factors for (p, γ) reactions on ¹²C and ¹³C at astrophysically relevant energies

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