First direct measurement of 12C(12C,n)23Mg at stellar energies

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

doi:10.1051/epjconf/201610904009

First direct measurement of ¹²C(¹²C,n)²³Mg at stellar energies

X. D. Tang, B. Bucher, X. Fang, A. Heger, S. Almaraz-Calderon, A. Alongi, A. D. Ayangeakaa, M. Beard, A. Best, J. Browne, C. Cahillane, M. Couder, R. J. DeBoer, A. Kontos, L. Lamm, Y. J. Li, A. Long, W. Lu, S. Lyons, M. NotaniD. Patel, N. Paul, M. Pignatari, A. Roberts, D. Robertson, K. Smith, E. Stech, R. Talwar, W. P. Tan, M. Wiescher, S. E. Woosley

Radiation Physics

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

1 Scopus citations

Abstract

Neutrons produced by the carbon fusion reaction ¹²C(¹²C,n)²³Mg play an important role in stellar nucleosynthesis. Past studies have shown large discrepancies between experimental data and theory, leading to an uncertain cross section extrapolation at astrophysical energies. We present the first direct measurement which extends deep into the astrophysical energy range along with a new and improved extrapolation technique based on experimental data from the mirror reaction ¹²C(¹²C,p)²³Na. The new reaction rate has been determined with a well-defined uncertainty which exceeds the precision required by astrophysics models. Using our constrained rate, we find that ¹²C(¹²C,n)²³Mg is crucial to the production of Na and Al in Pop-III Pair Instability Supernovae.

Original language	English (US)
Article number	04009
Journal	EPJ Web of Conferences
Volume	109
DOIs	https://doi.org/10.1051/epjconf/201610904009
State	Published - Feb 12 2016
Event	13th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG 2015 - Beijing, China Duration: Jun 24 2015 → Jun 27 2015

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1051/epjconf/201610904009

Cite this

Tang, X. D., Bucher, B., Fang, X., Heger, A., Almaraz-Calderon, S., Alongi, A., Ayangeakaa, A. D., Beard, M., Best, A., Browne, J., Cahillane, C., Couder, M., DeBoer, R. J., Kontos, A., Lamm, L., Li, Y. J., Long, A., Lu, W., Lyons, S., ... Woosley, S. E. (2016). First direct measurement of ¹²C(¹²C,n)²³Mg at stellar energies. EPJ Web of Conferences, 109, Article 04009. https://doi.org/10.1051/epjconf/201610904009

Tang, XD, Bucher, B, Fang, X, Heger, A, Almaraz-Calderon, S, Alongi, A, Ayangeakaa, AD, Beard, M, Best, A, Browne, J, Cahillane, C, Couder, M, DeBoer, RJ, Kontos, A, Lamm, L, Li, YJ, Long, A, Lu, W, Lyons, S, Notani, M, Patel, D, Paul, N, Pignatari, M, Roberts, A, Robertson, D, Smith, K, Stech, E, Talwar, R, Tan, WP, Wiescher, M & Woosley, SE 2016, 'First direct measurement of ¹²C(¹²C,n)²³Mg at stellar energies', EPJ Web of Conferences, vol. 109, 04009. https://doi.org/10.1051/epjconf/201610904009

@article{aa65a1331b89484cb83cd156ffe90ded,

title = "First direct measurement of 12C(12C,n)23Mg at stellar energies",

abstract = "Neutrons produced by the carbon fusion reaction 12C(12C,n)23Mg play an important role in stellar nucleosynthesis. Past studies have shown large discrepancies between experimental data and theory, leading to an uncertain cross section extrapolation at astrophysical energies. We present the first direct measurement which extends deep into the astrophysical energy range along with a new and improved extrapolation technique based on experimental data from the mirror reaction 12C(12C,p)23Na. The new reaction rate has been determined with a well-defined uncertainty which exceeds the precision required by astrophysics models. Using our constrained rate, we find that 12C(12C,n)23Mg is crucial to the production of Na and Al in Pop-III Pair Instability Supernovae.",

author = "Tang, {X. D.} and B. Bucher and X. Fang and A. Heger 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 DeBoer, {R. J.} and A. Kontos and L. Lamm and Li, {Y. J.} and A. Long and W. Lu and S. Lyons 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 Tan, {W. P.} and M. Wiescher and Woosley, {S. E.}",

note = "Publisher Copyright: {\textcopyright} 2016 Owned by the authors, published by EDP Sciences.; 13th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG 2015 ; Conference date: 24-06-2015 Through 27-06-2015",

year = "2016",

month = feb,

day = "12",

doi = "10.1051/epjconf/201610904009",

language = "English (US)",

volume = "109",

journal = "EPJ Web of Conferences",

issn = "2101-6275",

publisher = "EDP Sciences",

}

TY - JOUR

T1 - First direct measurement of 12C(12C,n)23Mg at stellar energies

AU - Tang, X. D.

AU - Bucher, B.

AU - Fang, X.

AU - Heger, A.

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 - DeBoer, R. J.

AU - Kontos, A.

AU - Lamm, L.

AU - Li, Y. J.

AU - Long, A.

AU - Lu, W.

AU - Lyons, S.

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 - Tan, W. P.

AU - Wiescher, M.

AU - Woosley, S. E.

PY - 2016/2/12

Y1 - 2016/2/12

N2 - Neutrons produced by the carbon fusion reaction 12C(12C,n)23Mg play an important role in stellar nucleosynthesis. Past studies have shown large discrepancies between experimental data and theory, leading to an uncertain cross section extrapolation at astrophysical energies. We present the first direct measurement which extends deep into the astrophysical energy range along with a new and improved extrapolation technique based on experimental data from the mirror reaction 12C(12C,p)23Na. The new reaction rate has been determined with a well-defined uncertainty which exceeds the precision required by astrophysics models. Using our constrained rate, we find that 12C(12C,n)23Mg is crucial to the production of Na and Al in Pop-III Pair Instability Supernovae.

AB - Neutrons produced by the carbon fusion reaction 12C(12C,n)23Mg play an important role in stellar nucleosynthesis. Past studies have shown large discrepancies between experimental data and theory, leading to an uncertain cross section extrapolation at astrophysical energies. We present the first direct measurement which extends deep into the astrophysical energy range along with a new and improved extrapolation technique based on experimental data from the mirror reaction 12C(12C,p)23Na. The new reaction rate has been determined with a well-defined uncertainty which exceeds the precision required by astrophysics models. Using our constrained rate, we find that 12C(12C,n)23Mg is crucial to the production of Na and Al in Pop-III Pair Instability Supernovae.

UR - http://www.scopus.com/inward/record.url?scp=84962319931&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84962319931&partnerID=8YFLogxK

U2 - 10.1051/epjconf/201610904009

DO - 10.1051/epjconf/201610904009

M3 - Conference article

AN - SCOPUS:84962319931

SN - 2101-6275

VL - 109

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

M1 - 04009

T2 - 13th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG 2015

Y2 - 24 June 2015 through 27 June 2015

ER -

First direct measurement of ¹²C(¹²C,n)²³Mg at stellar energies

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this