Improved precision on the experimental $E0$ decay branching ratio of the Hoyle state

T. K. Eriksen; T. Kibédi; M. W. Reed; A. E. Stuchbery; K. J. Cook; A. Akber; B. Alshahrani; A. A. Avaa; K. Banerjee; A. C. Berriman; L. T. Bezzina; L. Bignell; J. Buete; I. P. Carter; B. J. Coombes; J. T. H. Dowie; M. Dasgupta; L. J. Evitts; A. B. Garnsworthy; M. S. M. Gerathy; T. J. Gray; D. J. Hinde; T. H. Hoang; S. S. Hota; E. Ideguchi; G. J. Lane; B. P. McCormick; A. J. Mitchell; N. Palalani; T. Palazzo; M. Ripper; J. Smallcombe; B. M. A. Swinton-Bland; T. Tanaka; T. G. Tornyi; M. O. de Vries

Improved precision on the experimental $E0$ decay branching ratio of the Hoyle state

T. K. Eriksen
, T. Kibédi
, M. W. Reed
, A. E. Stuchbery
, K. J. Cook
, A. Akber
, B. Alshahrani
, A. A. Avaa
, K. Banerjee
, A. C. Berriman
, L. T. Bezzina
, L. Bignell
, J. Buete
, I. P. Carter
, B. J. Coombes
, J. T. H. Dowie
, M. Dasgupta
, L. J. Evitts
, A. B. Garnsworthy
, M. S. M. Gerathy

T. J. Gray, D. J. Hinde, T. H. Hoang, S. S. Hota, E. Ideguchi, G. J. Lane, B. P. McCormick, A. J. Mitchell, N. Palalani, T. Palazzo, M. Ripper, J. Smallcombe, B. M. A. Swinton-Bland, T. Tanaka, T. G. Tornyi, M. O. de Vries

Ysgol Cyfrifiadureg a Pheirianneg

Australian National University, Canberra,
Osaka University
TRIUMF
University of the Witwatersrand, South Africa

Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

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Stellar carbon synthesis occurs exclusively via the 3α process, in which three α particles fuse to
form 12C in the excited Hoyle state, followed by electromagnetic decay to the ground state. The Hoyle state is above the α threshold, and the rate of stellar carbon production depends on the radiative width of this state.
The radiative width cannot be measured directly, and must instead be deduced by combining three separately measured quantities. One of these quantities is the E0 decay branching ratio of the Hoyle state, and the current
10% uncertainty on the radiative width stems mainly from the uncertainty on this ratio. The rate of the 3α process is an important input parameter in astrophysical calculations on stellar evolution, and a high precision is imperative to constrain the possible outcomes of astrophysical models.

Iaith wreiddiol	Saesneg
Tudalennau (o-i)	024320
Nifer y tudalennau	1
Cyfnodolyn	Physical Review C
Cyfrol	102
Rhif cyhoeddi	2
Statws	Cyhoeddwyd - 17 Awst 2020

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https://arxiv.org/pdf/2007.15374Trwydded: CC BY
http://10.1103/PhysRevC.102.024320Trwydded: CC BY

Dyfynnu hyn

Eriksen, T. K., Kibédi, T., Reed, M. W., Stuchbery, A. E., Cook, K. J., Akber, A., Alshahrani, B., Avaa, A. A., Banerjee, K., Berriman, A. C., Bezzina, L. T., Bignell, L., Buete, J., Carter, I. P., Coombes, B. J., Dowie, J. T. H., Dasgupta, M., Evitts, L. J., Garnsworthy, A. B., ... de Vries, M. O. (2020). Improved precision on the experimental $E0$ decay branching ratio of the Hoyle state. Physical Review C, 102(2), 024320. https://arxiv.org/pdf/2007.15374

@article{079dd24095bc4c50b2639adba38ae1c6,

title = "Improved precision on the experimental \$E0\$ decay branching ratio of the Hoyle state",

abstract = "Stellar carbon synthesis occurs exclusively via the 3α process, in which three α particles fuse to form 12C in the excited Hoyle state, followed by electromagnetic decay to the ground state. The Hoyle state is above the α threshold, and the rate of stellar carbon production depends on the radiative width of this state. The radiative width cannot be measured directly, and must instead be deduced by combining three separately measured quantities. One of these quantities is the E0 decay branching ratio of the Hoyle state, and the current 10\% uncertainty on the radiative width stems mainly from the uncertainty on this ratio. The rate of the 3α process is an important input parameter in astrophysical calculations on stellar evolution, and a high precision is imperative to constrain the possible outcomes of astrophysical models.",

author = "Eriksen, \{T. K.\} and T. Kib{\'e}di and Reed, \{M. W.\} and Stuchbery, \{A. E.\} and Cook, \{K. J.\} and A. Akber and B. Alshahrani and Avaa, \{A. A.\} and K. Banerjee and Berriman, \{A. C.\} and Bezzina, \{L. T.\} and L. Bignell and J. Buete and Carter, \{I. P.\} and Coombes, \{B. J.\} and Dowie, \{J. T. H.\} and M. Dasgupta and Evitts, \{L. J.\} and Garnsworthy, \{A. B.\} and Gerathy, \{M. S. M.\} and Gray, \{T. J.\} and Hinde, \{D. J.\} and Hoang, \{T. H.\} and Hota, \{S. S.\} and E. Ideguchi and Lane, \{G. J.\} and McCormick, \{B. P.\} and Mitchell, \{A. J.\} and N. Palalani and T. Palazzo and M. Ripper and J. Smallcombe and Swinton-Bland, \{B. M. A.\} and T. Tanaka and Tornyi, \{T. G.\} and \{de Vries\}, \{M. O.\}",

year = "2020",

month = aug,

day = "17",

language = "English",

volume = "102",

pages = "024320",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "2",

}

Eriksen, TK, Kibédi, T, Reed, MW, Stuchbery, AE, Cook, KJ, Akber, A, Alshahrani, B, Avaa, AA, Banerjee, K, Berriman, AC, Bezzina, LT, Bignell, L, Buete, J, Carter, IP, Coombes, BJ, Dowie, JTH, Dasgupta, M, Evitts, LJ, Garnsworthy, AB, Gerathy, MSM, Gray, TJ, Hinde, DJ, Hoang, TH, Hota, SS, Ideguchi, E, Lane, GJ, McCormick, BP, Mitchell, AJ, Palalani, N, Palazzo, T, Ripper, M, Smallcombe, J, Swinton-Bland, BMA, Tanaka, T, Tornyi, TG & de Vries, MO 2020, 'Improved precision on the experimental $E0$ decay branching ratio of the Hoyle state', Physical Review C, cyfrol. 102, rhif 2, tt. 024320. <https://arxiv.org/pdf/2007.15374>

TY - JOUR

T1 - Improved precision on the experimental $E0$ decay branching ratio of the Hoyle state

AU - Eriksen, T. K.

AU - Kibédi, T.

AU - Reed, M. W.

AU - Stuchbery, A. E.

AU - Cook, K. J.

AU - Akber, A.

AU - Alshahrani, B.

AU - Avaa, A. A.

AU - Banerjee, K.

AU - Berriman, A. C.

AU - Bezzina, L. T.

AU - Bignell, L.

AU - Buete, J.

AU - Carter, I. P.

AU - Coombes, B. J.

AU - Dowie, J. T. H.

AU - Dasgupta, M.

AU - Evitts, L. J.

AU - Garnsworthy, A. B.

AU - Gerathy, M. S. M.

AU - Gray, T. J.

AU - Hinde, D. J.

AU - Hoang, T. H.

AU - Hota, S. S.

AU - Ideguchi, E.

AU - Lane, G. J.

AU - McCormick, B. P.

AU - Mitchell, A. J.

AU - Palalani, N.

AU - Palazzo, T.

AU - Ripper, M.

AU - Smallcombe, J.

AU - Swinton-Bland, B. M. A.

AU - Tanaka, T.

AU - Tornyi, T. G.

AU - de Vries, M. O.

PY - 2020/8/17

Y1 - 2020/8/17

N2 - Stellar carbon synthesis occurs exclusively via the 3α process, in which three α particles fuse to form 12C in the excited Hoyle state, followed by electromagnetic decay to the ground state. The Hoyle state is above the α threshold, and the rate of stellar carbon production depends on the radiative width of this state. The radiative width cannot be measured directly, and must instead be deduced by combining three separately measured quantities. One of these quantities is the E0 decay branching ratio of the Hoyle state, and the current 10% uncertainty on the radiative width stems mainly from the uncertainty on this ratio. The rate of the 3α process is an important input parameter in astrophysical calculations on stellar evolution, and a high precision is imperative to constrain the possible outcomes of astrophysical models.

AB - Stellar carbon synthesis occurs exclusively via the 3α process, in which three α particles fuse to form 12C in the excited Hoyle state, followed by electromagnetic decay to the ground state. The Hoyle state is above the α threshold, and the rate of stellar carbon production depends on the radiative width of this state. The radiative width cannot be measured directly, and must instead be deduced by combining three separately measured quantities. One of these quantities is the E0 decay branching ratio of the Hoyle state, and the current 10% uncertainty on the radiative width stems mainly from the uncertainty on this ratio. The rate of the 3α process is an important input parameter in astrophysical calculations on stellar evolution, and a high precision is imperative to constrain the possible outcomes of astrophysical models.

M3 - Article

SN - 2469-9985

VL - 102

SP - 024320

JO - Physical Review C

JF - Physical Review C

IS - 2

ER -

Improved precision on the experimental $E0$ decay branching ratio of the Hoyle state

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