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

Racah Institute of Physics

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

6 Scopus citations

Abstract

The ^{30}P(p,γ)^{31}S 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 ^{31}Cl β-delayed proton decay through the key J^{π}=3/2^{+}, 260-keV resonance. The intensity I_{βp}^{260}=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 Γ_{p}/Γ=2.5_{-0.3}^{+0.4}×10^{-4}. By combining this measurement with shell-model calculations for Γ_{γ} and past work on other resonances, the total ^{30}P(p,γ)^{31}S 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 ^{30}Si:^{28}Si 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 - 6 May 2022

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© 2022 American Physical Society.

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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{8f38c6994f814d2385588fd04740f5fe,

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 ^{30}P(p,γ)^{31}S 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 ^{31}Cl β-delayed proton decay through the key J^{π}=3/2^{+}, 260-keV resonance. The intensity I_{βp}^{260}=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 Γ_{p}/Γ=2.5_{-0.3}^{+0.4}×10^{-4}. By combining this measurement with shell-model calculations for Γ_{γ} and past work on other resonances, the total ^{30}P(p,γ)^{31}S 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 ^{30}Si:^{28}Si 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 = "אנגלית",

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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

TY - JOUR

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 ^{30}P(p,γ)^{31}S 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 ^{31}Cl β-delayed proton decay through the key J^{π}=3/2^{+}, 260-keV resonance. The intensity I_{βp}^{260}=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 Γ_{p}/Γ=2.5_{-0.3}^{+0.4}×10^{-4}. By combining this measurement with shell-model calculations for Γ_{γ} and past work on other resonances, the total ^{30}P(p,γ)^{31}S 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 ^{30}Si:^{28}Si excesses in presolar nova grains and the calibration of nuclear thermometers.

AB - The ^{30}P(p,γ)^{31}S 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 ^{31}Cl β-delayed proton decay through the key J^{π}=3/2^{+}, 260-keV resonance. The intensity I_{βp}^{260}=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 Γ_{p}/Γ=2.5_{-0.3}^{+0.4}×10^{-4}. By combining this measurement with shell-model calculations for Γ_{γ} and past work on other resonances, the total ^{30}P(p,γ)^{31}S 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 ^{30}Si:^{28}Si excesses in presolar nova grains and the calibration of nuclear thermometers.

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SN - 0031-9007

VL - 128

JO - Physical Review Letters

JF - Physical Review Letters

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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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