Constraining the P 30 (p, γ) S 31 Reaction Rate in ONe Novae via the Weak, Low-Energy, β -Delayed Proton Decay of Cl 31

T. Budner; M. Friedman; C. Wrede; B. A. Brown; J. José; D. Pérez-Loureiro; L. J. Sun; J. Surbrook; Y. Ayyad; D. W. Bardayan; K. Chae; A. A. Chen; K. A. Chipps; M. Cortesi; B. Glassman; M. R. Hall; M. Janasik; J. Liang; P. O'Malley; E. Pollacco; A. Psaltis; J. Stomps; T. Wheeler

doi:10.1103/PhysRevLett.128.182701

Constraining the P 30 (p, γ) S 31 Reaction Rate in ONe Novae via the Weak, Low-Energy, β -Delayed Proton Decay of Cl 31

T. Budner, M. Friedman, C. Wrede, B. A. Brown, J. José, D. Pérez-Loureiro, L. J. Sun, J. Surbrook, Y. Ayyad, D. W. Bardayan, K. Chae, A. A. Chen, K. A. Chipps, M. Cortesi, B. Glassman, M. R. Hall, M. Janasik, J. Liang, P. O'Malley, E. PollaccoA. Psaltis, J. Stomps, T. Wheeler

Nuclear Structure and Nuclear Astrophysi

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The P30(p,γ)S31 reaction plays an important role in understanding the nucleosynthesis of A≥30 nuclides in oxygen-neon novae. The Gaseous Detector with Germanium Tagging was used to measure Cl31 β-delayed proton decay through the key Jπ=3/2+, 260-keV resonance. The intensity Iβp260=8.3-0.9+1.2×10-6 represents the weakest β-delayed, charged-particle emission ever measured below 400 keV, resulting in a proton branching ratio of Γp/Γ=2.5-0.3+0.4×10-4. By combining this measurement with shell-model calculations for Γγ and past work on other resonances, the total P30(p,γ)S31 rate has been determined with reduced uncertainty. The new rate has been used in hydrodynamic simulations to model the composition of nova ejecta, leading to a concrete prediction of Si30:Si28 excesses in presolar nova grains and the calibration of nuclear thermometers.

Original language	English
Article number	182701
Journal	Physical Review Letters
Volume	128
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.128.182701
State	Published - May 6 2022

Funding

Research at NSCL was funded by the National Science Foundation under Grants No. PHY-1913554, No. PHY-1102511, No. PHY-1565546, No. PHY-2110365, No. PHY-2011890, as well as by the Department of Energy Office of Science under Award No. DE-SC0016052. We acknowledge support from the Natural Sciences and Engineering Research Council of Canada (NSERC), as well as the Spanish MINECO Grant No. AYA2017-86274-P, the E. U. FEDER funds, the AGAUR/Generalitat de Catalunya Grant No. SGR-661/2017, and the EU Horizon 2020 Grant No. 101008324 ChETEC-INFRA. This article also benefited from discussions within the ChETEC COST Action (CA16117). Additional funding sources include Korean NRF Grants No. 2020R1A2C1005981 and No. 2016R1A5A1013277. We thank the NSCL staff for providing technical and administrative support for this experiment.

Funders	Funder number
National Science Foundation	PHY-1913554, PHY-2110365, PHY-1565546, PHY-2011890, PHY-1102511
Office of Science	DE-SC0016052
Horizon 2020 Framework Programme
Natural Sciences and Engineering Research Council of Canada
Generalitat de Catalunya	SGR-661/2017
Agència de Gestió d'Ajuts Universitaris i de Recerca
Ministerio de Economía y Competitividad	AYA2017-86274-P
National Research Foundation of Korea	2016R1A5A1013277, 2020R1A2C1005981
Horizon 2020	101008324

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Budner, T., Friedman, M., Wrede, C., Brown, B. A., José, J., Pérez-Loureiro, D., Sun, L. J., Surbrook, J., Ayyad, Y., Bardayan, D. W., Chae, K., Chen, A. A., Chipps, K. A., Cortesi, M., Glassman, B., Hall, M. R., Janasik, M., Liang, J., O'Malley, P., ... Wheeler, T. (2022). Constraining the P 30 (p, γ) S 31 Reaction Rate in ONe Novae via the Weak, Low-Energy, β -Delayed Proton Decay of Cl 31. Physical Review Letters, 128(18), Article 182701. https://doi.org/10.1103/PhysRevLett.128.182701

@article{bf1b58e1d2de4eb9815e7d57d7e6811c,

title = "Constraining the P 30 (p, γ) S 31 Reaction Rate in ONe Novae via the Weak, Low-Energy, β -Delayed Proton Decay of Cl 31",

abstract = "The P30(p,γ)S31 reaction plays an important role in understanding the nucleosynthesis of A≥30 nuclides in oxygen-neon novae. The Gaseous Detector with Germanium Tagging was used to measure Cl31 β-delayed proton decay through the key Jπ=3/2+, 260-keV resonance. The intensity Iβp260=8.3-0.9+1.2×10-6 represents the weakest β-delayed, charged-particle emission ever measured below 400 keV, resulting in a proton branching ratio of Γp/Γ=2.5-0.3+0.4×10-4. By combining this measurement with shell-model calculations for Γγ and past work on other resonances, the total P30(p,γ)S31 rate has been determined with reduced uncertainty. The new rate has been used in hydrodynamic simulations to model the composition of nova ejecta, leading to a concrete prediction of Si30:Si28 excesses in presolar nova grains and the calibration of nuclear thermometers.",

author = "T. Budner and M. Friedman and C. Wrede and Brown, {B. A.} and J. Jos{\'e} and D. P{\'e}rez-Loureiro and Sun, {L. J.} and J. Surbrook and Y. Ayyad and Bardayan, {D. W.} and K. Chae and Chen, {A. A.} and Chipps, {K. A.} and M. Cortesi and B. Glassman and Hall, {M. R.} and M. Janasik and J. Liang and P. O'Malley and E. Pollacco and A. Psaltis and J. Stomps and T. Wheeler",

note = "Publisher Copyright: {\textcopyright} 2022 American Physical Society.",

year = "2022",

month = may,

day = "6",

doi = "10.1103/PhysRevLett.128.182701",

language = "English",

volume = "128",

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Budner, T, Friedman, M, Wrede, C, Brown, BA, José, J, Pérez-Loureiro, D, Sun, LJ, Surbrook, J, Ayyad, Y, Bardayan, DW, Chae, K, Chen, AA, Chipps, KA, Cortesi, M, Glassman, B, Hall, MR, Janasik, M, Liang, J, O'Malley, P, Pollacco, E, Psaltis, A, Stomps, J & Wheeler, T 2022, 'Constraining the P 30 (p, γ) S 31 Reaction Rate in ONe Novae via the Weak, Low-Energy, β -Delayed Proton Decay of Cl 31', Physical Review Letters, vol. 128, no. 18, 182701. https://doi.org/10.1103/PhysRevLett.128.182701

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T1 - Constraining the P 30 (p, γ) S 31 Reaction Rate in ONe Novae via the Weak, Low-Energy, β -Delayed Proton Decay of Cl 31

AU - Budner, T.

AU - Friedman, M.

AU - Wrede, C.

AU - Brown, B. A.

AU - José, J.

AU - Pérez-Loureiro, D.

AU - Sun, L. J.

AU - Surbrook, J.

AU - Ayyad, Y.

AU - Bardayan, D. W.

AU - Chae, K.

AU - Chen, A. A.

AU - Chipps, K. A.

AU - Cortesi, M.

AU - Glassman, B.

AU - Hall, M. R.

AU - Janasik, M.

AU - Liang, J.

AU - O'Malley, P.

AU - Pollacco, E.

AU - Psaltis, A.

AU - Stomps, J.

AU - Wheeler, T.

PY - 2022/5/6

Y1 - 2022/5/6

N2 - The P30(p,γ)S31 reaction plays an important role in understanding the nucleosynthesis of A≥30 nuclides in oxygen-neon novae. The Gaseous Detector with Germanium Tagging was used to measure Cl31 β-delayed proton decay through the key Jπ=3/2+, 260-keV resonance. The intensity Iβp260=8.3-0.9+1.2×10-6 represents the weakest β-delayed, charged-particle emission ever measured below 400 keV, resulting in a proton branching ratio of Γp/Γ=2.5-0.3+0.4×10-4. By combining this measurement with shell-model calculations for Γγ and past work on other resonances, the total P30(p,γ)S31 rate has been determined with reduced uncertainty. The new rate has been used in hydrodynamic simulations to model the composition of nova ejecta, leading to a concrete prediction of Si30:Si28 excesses in presolar nova grains and the calibration of nuclear thermometers.

AB - The P30(p,γ)S31 reaction plays an important role in understanding the nucleosynthesis of A≥30 nuclides in oxygen-neon novae. The Gaseous Detector with Germanium Tagging was used to measure Cl31 β-delayed proton decay through the key Jπ=3/2+, 260-keV resonance. The intensity Iβp260=8.3-0.9+1.2×10-6 represents the weakest β-delayed, charged-particle emission ever measured below 400 keV, resulting in a proton branching ratio of Γp/Γ=2.5-0.3+0.4×10-4. By combining this measurement with shell-model calculations for Γγ and past work on other resonances, the total P30(p,γ)S31 rate has been determined with reduced uncertainty. The new rate has been used in hydrodynamic simulations to model the composition of nova ejecta, leading to a concrete prediction of Si30:Si28 excesses in presolar nova grains and the calibration of nuclear thermometers.

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U2 - 10.1103/PhysRevLett.128.182701

DO - 10.1103/PhysRevLett.128.182701

M3 - Article

C2 - 35594108

AN - SCOPUS:85130157028

SN - 0031-9007

VL - 128

JO - Physical Review Letters

JF - Physical Review Letters

IS - 18

M1 - 182701

ER -

Constraining the P 30 (p, γ) S 31 Reaction Rate in ONe Novae via the Weak, Low-Energy, β -Delayed Proton Decay of Cl 31

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