Constraining the 12C+12C fusion cross section for astrophysics

B. Bucher; X. Fang; X. D. Tang; W. P. Tan; S. Almaraz-Calderon; A. Alongi; A. D. Ayangeakaa; M. Beard; A. Best; J. Browne; C. Cahillane; M. Couder; E. Dahlstrom; P. Davies; R. DeBoer; A. Kontos; L. Lamm; A. Long; W. Lu; S. Lyons; C. Ma; A. Moncion; M. Notani; D. Patel; N. Paul; M. Pignatari; A. Roberts; D. Robertson; K. Smith; E. Stech; R. Talwar; S. Thomas; M. Wiescher

doi:10.1051/epjconf/20159303009

Constraining the ¹²C+¹²C fusion cross section for astrophysics

B. Bucher, X. Fang, X. D. Tang, W. P. Tan, S. Almaraz-Calderon, A. Alongi, A. D. Ayangeakaa, M. Beard, A. Best, J. Browne, C. Cahillane, M. Couder, E. Dahlstrom, P. Davies, R. DeBoer, A. Kontos, L. Lamm, A. Long, W. Lu, S. LyonsC. Ma, A. Moncion, M. Notani, D. Patel, N. Paul, M. Pignatari, A. Roberts, D. Robertson, K. Smith, E. Stech, R. Talwar, S. Thomas, M. Wiescher

Radiation Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Scopus citations

Abstract

The ¹²C+¹²C reaction is one of the single most important nuclear reactions in astrophysics. It strongly influences late evolution of massive stars as well as the dynamics of type Ia supernovae and x-ray superbursts. An accurate estimation of the cross section at relevant astrophysical energies is extremely important for modeling these systems. However, the situation is complicated by the unpredictable resonance structure observed at higher energies. Two recent studies at Notre Dame have produced results which help reduce the uncertainty associated with this reaction. The first uses correlations with the isotope fusion systems, ¹²C+¹³C and ¹³C+¹³C, to establish an upper limit on the resonance strengths in ¹²C+¹²C. The other focuses on the specific channel ¹²C+¹²C→²³Mg+n and its low-energy measurement and extrapolation which is relevant to s-process nucleosynthesis. The results from each provide important constraints for astrophysical models.

Original language	English (US)
Title of host publication	CGS15 2014 - Capture GammaRay Spectroscopy and Related Topics
Editors	Kai Zuber, Ronald Schwengner
Publisher	EDP Sciences
ISBN (Electronic)	9782759817948
DOIs	https://doi.org/10.1051/epjconf/20159303009
State	Published - May 28 2015
Event	15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014 - Dresden, Germany Duration: Aug 25 2014 → Aug 29 2014

Publication series

Name	EPJ Web of Conferences
Volume	93
ISSN (Print)	2101-6275
ISSN (Electronic)	2100-014X

Other

Other	15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014
Country/Territory	Germany
City	Dresden
Period	8/25/14 → 8/29/14

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1051/epjconf/20159303009

Cite this

Bucher, B., Fang, X., Tang, X. D., Tan, W. P., Almaraz-Calderon, S., Alongi, A., Ayangeakaa, A. D., Beard, M., Best, A., Browne, J., Cahillane, C., Couder, M., Dahlstrom, E., Davies, P., DeBoer, R., Kontos, A., Lamm, L., Long, A., Lu, W., ... Wiescher, M. (2015). Constraining the ¹²C+¹²C fusion cross section for astrophysics. In K. Zuber, & R. Schwengner (Eds.), CGS15 2014 - Capture GammaRay Spectroscopy and Related Topics Article 03009 (EPJ Web of Conferences; Vol. 93). EDP Sciences. https://doi.org/10.1051/epjconf/20159303009

Bucher, B, Fang, X, Tang, XD, Tan, WP, Almaraz-Calderon, S, Alongi, A, Ayangeakaa, AD, Beard, M, Best, A, Browne, J, Cahillane, C, Couder, M, Dahlstrom, E, Davies, P, DeBoer, R, Kontos, A, Lamm, L, Long, A, Lu, W, Lyons, S, Ma, C, Moncion, A, Notani, M, Patel, D, Paul, N, Pignatari, M, Roberts, A, Robertson, D, Smith, K, Stech, E, Talwar, R, Thomas, S & Wiescher, M 2015, Constraining the ¹²C+¹²C fusion cross section for astrophysics. in K Zuber & R Schwengner (eds), CGS15 2014 - Capture GammaRay Spectroscopy and Related Topics., 03009, EPJ Web of Conferences, vol. 93, EDP Sciences, 15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014, Dresden, Germany, 8/25/14. https://doi.org/10.1051/epjconf/20159303009

@inproceedings{6ccbf98bc1ad451daf4354ce6bfadfd2,

title = "Constraining the 12C+12C fusion cross section for astrophysics",

abstract = "The 12C+12C reaction is one of the single most important nuclear reactions in astrophysics. It strongly influences late evolution of massive stars as well as the dynamics of type Ia supernovae and x-ray superbursts. An accurate estimation of the cross section at relevant astrophysical energies is extremely important for modeling these systems. However, the situation is complicated by the unpredictable resonance structure observed at higher energies. Two recent studies at Notre Dame have produced results which help reduce the uncertainty associated with this reaction. The first uses correlations with the isotope fusion systems, 12C+13C and 13C+13C, to establish an upper limit on the resonance strengths in 12C+12C. The other focuses on the specific channel 12C+12C→23Mg+n and its low-energy measurement and extrapolation which is relevant to s-process nucleosynthesis. The results from each provide important constraints for astrophysical models.",

author = "B. Bucher and X. Fang and Tang, {X. D.} and Tan, {W. P.} and S. Almaraz-Calderon and A. Alongi and Ayangeakaa, {A. D.} and M. Beard and A. Best and J. Browne and C. Cahillane and M. Couder and E. Dahlstrom and P. Davies and R. DeBoer and A. Kontos and L. Lamm and A. Long and W. Lu and S. Lyons and C. Ma and A. Moncion and M. Notani and D. Patel and N. Paul and M. Pignatari and A. Roberts and D. Robertson and K. Smith and E. Stech and R. Talwar and S. Thomas and M. Wiescher",

note = "Funding Information: This work was supported by the National Science Foundation under Grants PHY-0758100 and PHY-0822648, the National Natural Science Foundation of China under Grants 11021504 and 11321064, and the University of Notre Dame. BB{\textquoteright}s participation at CGS15 was conducted under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. MP acknowledges support from SNF (Switzerland) and from the NuGrid collaboration (www.nugridstars.org).; 15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014 ; Conference date: 25-08-2014 Through 29-08-2014",

year = "2015",

month = may,

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doi = "10.1051/epjconf/20159303009",

language = "English (US)",

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T1 - Constraining the 12C+12C fusion cross section for astrophysics

AU - Bucher, B.

AU - Fang, X.

AU - Tang, X. D.

AU - Tan, W. P.

AU - Almaraz-Calderon, S.

AU - Alongi, A.

AU - Ayangeakaa, A. D.

AU - Beard, M.

AU - Best, A.

AU - Browne, J.

AU - Cahillane, C.

AU - Couder, M.

AU - Dahlstrom, E.

AU - Davies, P.

AU - DeBoer, R.

AU - Kontos, A.

AU - Lamm, L.

AU - Long, A.

AU - Lu, W.

AU - Lyons, S.

AU - Ma, C.

AU - Moncion, A.

AU - Notani, M.

AU - Patel, D.

AU - Paul, N.

AU - Pignatari, M.

AU - Roberts, A.

AU - Robertson, D.

AU - Smith, K.

AU - Stech, E.

AU - Talwar, R.

AU - Thomas, S.

AU - Wiescher, M.

N1 - Funding Information: This work was supported by the National Science Foundation under Grants PHY-0758100 and PHY-0822648, the National Natural Science Foundation of China under Grants 11021504 and 11321064, and the University of Notre Dame. BB’s participation at CGS15 was conducted under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. MP acknowledges support from SNF (Switzerland) and from the NuGrid collaboration (www.nugridstars.org).

PY - 2015/5/28

Y1 - 2015/5/28

N2 - The 12C+12C reaction is one of the single most important nuclear reactions in astrophysics. It strongly influences late evolution of massive stars as well as the dynamics of type Ia supernovae and x-ray superbursts. An accurate estimation of the cross section at relevant astrophysical energies is extremely important for modeling these systems. However, the situation is complicated by the unpredictable resonance structure observed at higher energies. Two recent studies at Notre Dame have produced results which help reduce the uncertainty associated with this reaction. The first uses correlations with the isotope fusion systems, 12C+13C and 13C+13C, to establish an upper limit on the resonance strengths in 12C+12C. The other focuses on the specific channel 12C+12C→23Mg+n and its low-energy measurement and extrapolation which is relevant to s-process nucleosynthesis. The results from each provide important constraints for astrophysical models.

AB - The 12C+12C reaction is one of the single most important nuclear reactions in astrophysics. It strongly influences late evolution of massive stars as well as the dynamics of type Ia supernovae and x-ray superbursts. An accurate estimation of the cross section at relevant astrophysical energies is extremely important for modeling these systems. However, the situation is complicated by the unpredictable resonance structure observed at higher energies. Two recent studies at Notre Dame have produced results which help reduce the uncertainty associated with this reaction. The first uses correlations with the isotope fusion systems, 12C+13C and 13C+13C, to establish an upper limit on the resonance strengths in 12C+12C. The other focuses on the specific channel 12C+12C→23Mg+n and its low-energy measurement and extrapolation which is relevant to s-process nucleosynthesis. The results from each provide important constraints for astrophysical models.

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DO - 10.1051/epjconf/20159303009

M3 - Conference contribution

AN - SCOPUS:84960338128

T3 - EPJ Web of Conferences

BT - CGS15 2014 - Capture GammaRay Spectroscopy and Related Topics

A2 - Zuber, Kai

A2 - Schwengner, Ronald

PB - EDP Sciences

T2 - 15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014

Y2 - 25 August 2014 through 29 August 2014

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