Single neutron transfer on 23Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts

G. Lotay; J. Henderson; W.N. Catford; F.A. Ali; J. Berean; N. Bernier; S.S. Bhattacharjee; M. Bowry; R. Caballero-Folch; B. Davids; T.E. Drake; A.B. Garnsworthy; F. Ghazi Moradi; S. A. Gillespie; B. Greaves; G. Hackman; S. Hallam; D. Hymers; E. Kasanda; D. Levy; B.K. Luna; A. Mathews; Z. Meisel; M. Moukaddam; D. Muecher; B. Olaizola; N.A. Orr; H.P. Patel; M.M. Rajabali; Y. Saito; J. Smallcombe; M. Spencer; C.E. Svensson; K. Whitmore; M. Williams

doi:10.1016/j.physletb.2022.137361

Single neutron transfer on ²³Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts

G. Lotay^*, J. Henderson, W.N. Catford, F.A. Ali, J. Berean, N. Bernier, S.S. Bhattacharjee, M. Bowry, R. Caballero-Folch, B. Davids, T.E. Drake, A.B. Garnsworthy, F. Ghazi Moradi, S. A. Gillespie, B. Greaves, G. Hackman, S. Hallam, D. Hymers, E. Kasanda, D. LevyB.K. Luna, A. Mathews, Z. Meisel, M. Moukaddam, D. Muecher, B. Olaizola, N.A. Orr, H.P. Patel, M.M. Rajabali, Y. Saito, J. Smallcombe, M. Spencer, C.E. Svensson, K. Whitmore, M. Williams

^*Corresponding author for this work

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

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Abstract

We present new experimental measurements of resonance strengths in the astrophysical ²³Al(p,γ)²⁴Si reaction, constraining the pathway of nucleosynthesis beyond ²²Mg in X-ray burster scenarios. Specifically, we have performed the first measurement of the (d,p) reaction using a radioactive beam of ²³Ne to explore levels in ²⁴Ne, the mirror analog of ²⁴Si. Four strong single-particle states were observed and corresponding neutron spectroscopic factors were extracted with a precision of ∼20%. Using these spectroscopic factors, together with mirror state identifications, we have reduced uncertainties in the strength of the key ℓ = 0 resonance at E_r = 157 keV, in the astrophysical 23Al(p,γ) reaction, by a factor of 4. Our results show that the ²²Mg(p,γ)²³Al(p,γ) pathway dominates over the competing ²²Mg(α,p) reaction in all but the most energetic X-ray burster events (T > 0.85 GK), significantly affecting energy production and the preservation of hydrogen fuel.

Original language	English
Article number	137361
Number of pages	5
Journal	Physics Letters B
Volume	833
Early online date	2 Aug 2022
DOIs	https://doi.org/10.1016/j.physletb.2022.137361
Publication status	Published - 10 Oct 2022
Externally published	Yes

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2022 07 28 Lotay et al Single finalFinal published version, 599 KBLicence: CC BY

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Lotay, G., Henderson, J., Catford, W. N., Ali, F. A., Berean, J., Bernier, N., Bhattacharjee, S. S., Bowry, M., Caballero-Folch, R., Davids, B., Drake, T. E., Garnsworthy, A. B., Moradi, F. G., Gillespie, S. A., Greaves, B., Hackman, G., Hallam, S., Hymers, D., Kasanda, E., ... Williams, M. (2022). Single neutron transfer on ²³Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts. Physics Letters B, 833, Article 137361. https://doi.org/10.1016/j.physletb.2022.137361

@article{8fdbb896c8db48aa8badd9ab1fe78f77,

title = "Single neutron transfer on 23Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts",

abstract = "We present new experimental measurements of resonance strengths in the astrophysical 23Al(p,γ)24Si reaction, constraining the pathway of nucleosynthesis beyond 22Mg in X-ray burster scenarios. Specifically, we have performed the first measurement of the (d,p) reaction using a radioactive beam of 23Ne to explore levels in 24Ne, the mirror analog of 24Si. Four strong single-particle states were observed and corresponding neutron spectroscopic factors were extracted with a precision of ∼20%. Using these spectroscopic factors, together with mirror state identifications, we have reduced uncertainties in the strength of the key ℓ = 0 resonance at Er = 157 keV, in the astrophysical 23Al(p,γ) reaction, by a factor of 4. Our results show that the 22Mg(p,γ)23Al(p,γ) pathway dominates over the competing 22Mg(α,p) reaction in all but the most energetic X-ray burster events (T > 0.85 GK), significantly affecting energy production and the preservation of hydrogen fuel.",

author = "G. Lotay and J. Henderson and W.N. Catford and F.A. Ali and J. Berean and N. Bernier and S.S. Bhattacharjee and M. Bowry and R. Caballero-Folch and B. Davids and T.E. Drake and A.B. Garnsworthy and Moradi, {F. Ghazi} and Gillespie, {S. A.} and B. Greaves and G. Hackman and S. Hallam and D. Hymers and E. Kasanda and D. Levy and B.K. Luna and A. Mathews and Z. Meisel and M. Moukaddam and D. Muecher and B. Olaizola and N.A. Orr and H.P. Patel and M.M. Rajabali and Y. Saito and J. Smallcombe and M. Spencer and C.E. Svensson and K. Whitmore and M. Williams",

year = "2022",

month = oct,

day = "10",

doi = "10.1016/j.physletb.2022.137361",

language = "English",

volume = "833",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

Lotay, G, Henderson, J, Catford, WN, Ali, FA, Berean, J, Bernier, N, Bhattacharjee, SS, Bowry, M, Caballero-Folch, R, Davids, B, Drake, TE, Garnsworthy, AB, Moradi, FG, Gillespie, SA, Greaves, B, Hackman, G, Hallam, S, Hymers, D, Kasanda, E, Levy, D, Luna, BK, Mathews, A, Meisel, Z, Moukaddam, M, Muecher, D, Olaizola, B, Orr, NA, Patel, HP, Rajabali, MM, Saito, Y, Smallcombe, J, Spencer, M, Svensson, CE, Whitmore, K & Williams, M 2022, 'Single neutron transfer on ²³Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts', Physics Letters B, vol. 833, 137361. https://doi.org/10.1016/j.physletb.2022.137361

TY - JOUR

T1 - Single neutron transfer on 23Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts

AU - Lotay, G.

AU - Henderson, J.

AU - Catford, W.N.

AU - Ali, F.A.

AU - Berean, J.

AU - Bernier, N.

AU - Bhattacharjee, S.S.

AU - Bowry, M.

AU - Caballero-Folch, R.

AU - Davids, B.

AU - Drake, T.E.

AU - Garnsworthy, A.B.

AU - Moradi, F. Ghazi

AU - Gillespie, S. A.

AU - Greaves, B.

AU - Hackman, G.

AU - Hallam, S.

AU - Hymers, D.

AU - Kasanda, E.

AU - Levy, D.

AU - Luna, B.K.

AU - Mathews, A.

AU - Meisel, Z.

AU - Moukaddam, M.

AU - Muecher, D.

AU - Olaizola, B.

AU - Orr, N.A.

AU - Patel, H.P.

AU - Rajabali, M.M.

AU - Saito, Y.

AU - Smallcombe, J.

AU - Spencer, M.

AU - Svensson, C.E.

AU - Whitmore, K.

AU - Williams, M.

PY - 2022/10/10

Y1 - 2022/10/10

N2 - We present new experimental measurements of resonance strengths in the astrophysical 23Al(p,γ)24Si reaction, constraining the pathway of nucleosynthesis beyond 22Mg in X-ray burster scenarios. Specifically, we have performed the first measurement of the (d,p) reaction using a radioactive beam of 23Ne to explore levels in 24Ne, the mirror analog of 24Si. Four strong single-particle states were observed and corresponding neutron spectroscopic factors were extracted with a precision of ∼20%. Using these spectroscopic factors, together with mirror state identifications, we have reduced uncertainties in the strength of the key ℓ = 0 resonance at Er = 157 keV, in the astrophysical 23Al(p,γ) reaction, by a factor of 4. Our results show that the 22Mg(p,γ)23Al(p,γ) pathway dominates over the competing 22Mg(α,p) reaction in all but the most energetic X-ray burster events (T > 0.85 GK), significantly affecting energy production and the preservation of hydrogen fuel.

AB - We present new experimental measurements of resonance strengths in the astrophysical 23Al(p,γ)24Si reaction, constraining the pathway of nucleosynthesis beyond 22Mg in X-ray burster scenarios. Specifically, we have performed the first measurement of the (d,p) reaction using a radioactive beam of 23Ne to explore levels in 24Ne, the mirror analog of 24Si. Four strong single-particle states were observed and corresponding neutron spectroscopic factors were extracted with a precision of ∼20%. Using these spectroscopic factors, together with mirror state identifications, we have reduced uncertainties in the strength of the key ℓ = 0 resonance at Er = 157 keV, in the astrophysical 23Al(p,γ) reaction, by a factor of 4. Our results show that the 22Mg(p,γ)23Al(p,γ) pathway dominates over the competing 22Mg(α,p) reaction in all but the most energetic X-ray burster events (T > 0.85 GK), significantly affecting energy production and the preservation of hydrogen fuel.

U2 - 10.1016/j.physletb.2022.137361

DO - 10.1016/j.physletb.2022.137361

M3 - Article

SN - 0370-2693

VL - 833

JO - Physics Letters B

JF - Physics Letters B

M1 - 137361

ER -

Single neutron transfer on 23Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts

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Single neutron transfer on ²³Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts