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

Xiao Dong Tang; B. Bucher; Xiao Fang; A. Heger; S. Almaraz-Calderon; A. Alongi; A. D. Ayangeakaa; M. Beard; Andreas Best; J. Browne; C. Cahillane; M. Couder; R. J. DeBoer; A. Kontos; L. Lamm; Yunju Li; Alexander Makenzie Long; Wenting Lu; Shawn M Lyons; M. Notani; D. Patel; N. Paul; M. Pignatari; Arthur L Roberts; Daniel P Robertson; Karl J Smith; E. Stech; R. Talwar; Wanpeng Tan; M. Wiescher; S. E. Woosley

doi:10.1051/epjconf/201610904009

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

Xiao Dong Tang, B. Bucher, Xiao Fang, A. Heger, S. Almaraz-Calderon, A. Alongi, A. D. Ayangeakaa, M. Beard, Andreas Best, J. Browne, C. Cahillane, M. Couder, R. J. DeBoer, A. Kontos, L. Lamm, Yunju Li, Alexander Makenzie Long, Wenting Lu, Shawn M Lyons, M. NotaniD. Patel, N. Paul, M. Pignatari, Arthur L Roberts, Daniel P Robertson, Karl J Smith, E. Stech, R. Talwar, Wanpeng Tan, M. Wiescher, S. E. Woosley

School of Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other › peer-review

1 Citation (Scopus)

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
Title of host publication	EPJ Web of Conferences
Number of pages	6
Volume	109
DOIs	https://doi.org/10.1051/epjconf/201610904009
Publication status	Published - 12 Feb 2016
Event	International Symposium on Origin of Matter and Evolution of Galaxies (OMEG) 2015 - Prime Hotel, Beijing, China Duration: 24 Jun 2015 → 27 Jun 2015 Conference number: 13th http://esic.ciae.ac.cn/omeg2015/ http://inspirehep.net/record/1409580

Conference

Conference	International Symposium on Origin of Matter and Evolution of Galaxies (OMEG) 2015
Abbreviated title	OMEG 2015
Country/Territory	China
City	Beijing
Period	24/06/15 → 27/06/15
Internet address	http://esic.ciae.ac.cn/omeg2015/ http://inspirehep.net/record/1409580

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10.1051/epjconf/201610904009

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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., Long, A. M., Lu, W., Lyons, S. M., ... Woosley, S. E. (2016). First direct measurement of ¹²C(¹²C,n)²³Mg at stellar energies. In EPJ Web of Conferences (Vol. 109). Article 04009 https://doi.org/10.1051/epjconf/201610904009

@inproceedings{0e380dad1f53409e89e877b18146989e,

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, \{Xiao Dong\} and B. Bucher and Xiao Fang and A. Heger and S. Almaraz-Calderon and A. Alongi and Ayangeakaa, \{A. D.\} and M. Beard and Andreas Best and J. Browne and C. Cahillane and M. Couder and DeBoer, \{R. J.\} and A. Kontos and L. Lamm and Yunju Li and Long, \{Alexander Makenzie\} and Wenting Lu and Lyons, \{Shawn M\} and M. Notani and D. Patel and N. Paul and M. Pignatari and Roberts, \{Arthur L\} and Robertson, \{Daniel P\} and Smith, \{Karl J\} and E. Stech and R. Talwar and Wanpeng Tan and M. Wiescher and Woosley, \{S. E.\}",

year = "2016",

month = feb,

day = "12",

doi = "10.1051/epjconf/201610904009",

language = "English",

volume = "109",

booktitle = "EPJ Web of Conferences",

note = "International Symposium on Origin of Matter and Evolution of Galaxies (OMEG) 2015 , OMEG 2015 ; Conference date: 24-06-2015 Through 27-06-2015",

url = "http://esic.ciae.ac.cn/omeg2015/, http://inspirehep.net/record/1409580",

}

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, Y, Long, AM, Lu, W, Lyons, SM, Notani, M, Patel, D, Paul, N, Pignatari, M, Roberts, AL, Robertson, DP, Smith, KJ, Stech, E, Talwar, R, Tan, W, Wiescher, M & Woosley, SE 2016, First direct measurement of ¹²C(¹²C,n)²³Mg at stellar energies. in EPJ Web of Conferences. vol. 109, 04009, International Symposium on Origin of Matter and Evolution of Galaxies (OMEG) 2015 , Beijing, China, 24/06/15. https://doi.org/10.1051/epjconf/201610904009

TY - GEN

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

AU - Tang, Xiao Dong

AU - Bucher, B.

AU - Fang, Xiao

AU - Heger, A.

AU - Almaraz-Calderon, S.

AU - Alongi, A.

AU - Ayangeakaa, A. D.

AU - Beard, M.

AU - Best, Andreas

AU - Browne, J.

AU - Cahillane, C.

AU - Couder, M.

AU - DeBoer, R. J.

AU - Kontos, A.

AU - Lamm, L.

AU - Li, Yunju

AU - Long, Alexander Makenzie

AU - Lu, Wenting

AU - Lyons, Shawn M

AU - Notani, M.

AU - Patel, D.

AU - Paul, N.

AU - Pignatari, M.

AU - Roberts, Arthur L

AU - Robertson, Daniel P

AU - Smith, Karl J

AU - Stech, E.

AU - Talwar, R.

AU - Tan, Wanpeng

AU - Wiescher, M.

AU - Woosley, S. E.

N1 - Conference code: 13th

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 - https://www.scopus.com/pages/publications/84962319931

U2 - 10.1051/epjconf/201610904009

DO - 10.1051/epjconf/201610904009

M3 - Conference Paper

AN - SCOPUS:84962319931

VL - 109

BT - EPJ Web of Conferences

T2 - 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

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

Cosmic explosions and the origin of the elements

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

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