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

B Bucher; X D Tang; 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:10.1103/PhysRevLett.114.251102

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

B Bucher, X D Tang, 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

School of Physics and Astronomy

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27 Citations (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
Article number	251102
Pages (from-to)	1-6
Number of pages	6
Journal	Physical Review Letters
Volume	114
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.114.251102
Publication status	Published - 2015

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10.1103/PhysRevLett.114.251102

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Bucher, B., Tang, X. D., 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. (2015). First direct measurement of ¹²C(¹²C,n)²³Mg at stellar energies. Physical Review Letters, 114(25), 1-6. Article 251102. https://doi.org/10.1103/PhysRevLett.114.251102

@article{d3d961efff6c465b9e0398dbb752017b,

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 = "B Bucher and Tang, {X D} 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}",

year = "2015",

doi = "10.1103/PhysRevLett.114.251102",

language = "English",

volume = "114",

pages = "1--6",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "25",

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Bucher, B, Tang, XD, 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 2015, 'First direct measurement of ¹²C(¹²C,n)²³Mg at stellar energies', Physical Review Letters, vol. 114, no. 25, 251102, pp. 1-6. https://doi.org/10.1103/PhysRevLett.114.251102

TY - JOUR

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

AU - Bucher, B

AU - Tang, X D

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 - 2015

Y1 - 2015

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://journals.aps.org/prl/pdf/10.1103/PhysRevLett.114.251102

U2 - 10.1103/PhysRevLett.114.251102

DO - 10.1103/PhysRevLett.114.251102

M3 - Article

SN - 0031-9007

VL - 114

SP - 1

EP - 6

JO - Physical Review Letters

JF - Physical Review Letters

IS - 25

M1 - 251102

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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