Radioactive ion beam studies of α, p process waiting points in X-Ray Bursts

C. M. Deibel; L. Afanasieva; J. Lai; B. C. Rasco; M. Albers; M. Alcorta; S. Almarez-Calderon; P. F. Bertone; J. Chen; J. A. Clark; J. P. Greene; C. R. Hoffman; C. L. Jiang; B. P. Kay; H. Y. Lee; C. Nair; T. Palachan-Hazan; R. C. Pardo; K. E. Rehm; A. M. Rogers; C. Ugalde; G. Zinkann; S. Bedoor; D. Shetty; A. Wuosmaa; P. Carnelli; J. M. Figueira; A. A. Chen; D. Irvine; S. Manwell; J. C. Lighthall; S. T. Marley; N. Patel; M. Paul

Radioactive ion beam studies of α, p process waiting points in X-Ray Bursts

C. M. Deibel, L. Afanasieva, J. Lai, B. C. Rasco, M. Albers, M. Alcorta, S. Almarez-Calderon, P. F. Bertone, J. Chen, J. A. Clark, J. P. Greene, C. R. Hoffman, C. L. Jiang, B. P. Kay, H. Y. Lee, C. Nair, T. Palachan-Hazan, R. C. Pardo, K. E. Rehm, A. M. RogersC. Ugalde, G. Zinkann, S. Bedoor, D. Shetty, A. Wuosmaa, P. Carnelli, J. M. Figueira, A. A. Chen, D. Irvine, S. Manwell, J. C. Lighthall, S. T. Marley, N. Patel, M. Paul

Racah Institute of Physics

Research output: Contribution to journal › Conference article › peer-review

Abstract

The nucleosynthetic flow in type I X-ray Bursts (XRBs) is driven by the triple-α, rp and α,p processes. Several intermediate mass nuclei, ²²Mg, ²⁶Si, ³⁰S, and ³⁴Ar, have been identified as possible candidates for waiting points in XRBs. When such a nucleus is reached, the flow stalls due to a (p, γ)-(γ, p) equilibrium and must await β decay unless the (α, p) reaction is fast enough to break out of the waiting point first. A method to study these αp-process reactions has been developed whereby the time-inverse reaction is studied in inverse kinematics using radioactive ion beams produced by the in-flight method at the Argonne National Laboratory ATLAS facility. These time-inverse reactions have been used to study all four of the α, p process waiting points via the p(²⁵Al,²²Mg)α, p(³³Cl,³⁰S)α, and p(³⁷K, ³⁴Ar)α reactions. The data from these studies have been used to determine rates for ²²Mg(α, p)²⁵Al, ²⁶Si(α, p)²⁹P, ³⁰S(α, p) ³³Cl, and ³⁴Ar(α, p)³⁷K and have also been compared with theoretical calculations. The results and possible implications for nucleosynthesis in XRBs will be discussed.

Original language	English
Journal	Proceedings of Science
State	Published - 2012
Event	12th International Symposium on Nuclei in the Cosmos, NIC 2012 - Cairns, QLD, Australia Duration: 5 Aug 2012 → 12 Aug 2012

Cite this

Deibel, C. M., Afanasieva, L., Lai, J., Rasco, B. C., Albers, M., Alcorta, M., Almarez-Calderon, S., Bertone, P. F., Chen, J., Clark, J. A., Greene, J. P., Hoffman, C. R., Jiang, C. L., Kay, B. P., Lee, H. Y., Nair, C., Palachan-Hazan, T., Pardo, R. C., Rehm, K. E., ... Paul, M. (2012). Radioactive ion beam studies of α, p process waiting points in X-Ray Bursts. Proceedings of Science.

@article{31fff56f14514ec9aeb1aa6eb27587ae,

title = "Radioactive ion beam studies of α, p process waiting points in X-Ray Bursts",

abstract = "The nucleosynthetic flow in type I X-ray Bursts (XRBs) is driven by the triple-α, rp and α,p processes. Several intermediate mass nuclei, 22Mg, 26Si, 30S, and 34Ar, have been identified as possible candidates for waiting points in XRBs. When such a nucleus is reached, the flow stalls due to a (p, γ)-(γ, p) equilibrium and must await β decay unless the (α, p) reaction is fast enough to break out of the waiting point first. A method to study these αp-process reactions has been developed whereby the time-inverse reaction is studied in inverse kinematics using radioactive ion beams produced by the in-flight method at the Argonne National Laboratory ATLAS facility. These time-inverse reactions have been used to study all four of the α, p process waiting points via the p(25Al,22Mg)α, p(33Cl,30S)α, and p(37K, 34Ar)α reactions. The data from these studies have been used to determine rates for 22Mg(α, p)25Al, 26Si(α, p)29P, 30S(α, p) 33Cl, and 34Ar(α, p)37K and have also been compared with theoretical calculations. The results and possible implications for nucleosynthesis in XRBs will be discussed.",

author = "Deibel, {C. M.} and L. Afanasieva and J. Lai and Rasco, {B. C.} and M. Albers and M. Alcorta and S. Almarez-Calderon and Bertone, {P. F.} and J. Chen and Clark, {J. A.} and Greene, {J. P.} and Hoffman, {C. R.} and Jiang, {C. L.} and Kay, {B. P.} and Lee, {H. Y.} and C. Nair and T. Palachan-Hazan and Pardo, {R. C.} and Rehm, {K. E.} and Rogers, {A. M.} and C. Ugalde and G. Zinkann and S. Bedoor and D. Shetty and A. Wuosmaa and P. Carnelli and Figueira, {J. M.} and Chen, {A. A.} and D. Irvine and S. Manwell and Lighthall, {J. C.} and Marley, {S. T.} and N. Patel and M. Paul",

year = "2012",

language = "אנגלית",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

note = "12th International Symposium on Nuclei in the Cosmos, NIC 2012 ; Conference date: 05-08-2012 Through 12-08-2012",

}

Deibel, CM, Afanasieva, L, Lai, J, Rasco, BC, Albers, M, Alcorta, M, Almarez-Calderon, S, Bertone, PF, Chen, J, Clark, JA, Greene, JP, Hoffman, CR, Jiang, CL, Kay, BP, Lee, HY, Nair, C, Palachan-Hazan, T, Pardo, RC, Rehm, KE, Rogers, AM, Ugalde, C, Zinkann, G, Bedoor, S, Shetty, D, Wuosmaa, A, Carnelli, P, Figueira, JM, Chen, AA, Irvine, D, Manwell, S, Lighthall, JC, Marley, ST, Patel, N & Paul, M 2012, 'Radioactive ion beam studies of α, p process waiting points in X-Ray Bursts', Proceedings of Science.

TY - JOUR

T1 - Radioactive ion beam studies of α, p process waiting points in X-Ray Bursts

AU - Deibel, C. M.

AU - Afanasieva, L.

AU - Lai, J.

AU - Rasco, B. C.

AU - Albers, M.

AU - Alcorta, M.

AU - Almarez-Calderon, S.

AU - Bertone, P. F.

AU - Chen, J.

AU - Clark, J. A.

AU - Greene, J. P.

AU - Hoffman, C. R.

AU - Jiang, C. L.

AU - Kay, B. P.

AU - Lee, H. Y.

AU - Nair, C.

AU - Palachan-Hazan, T.

AU - Pardo, R. C.

AU - Rehm, K. E.

AU - Rogers, A. M.

AU - Ugalde, C.

AU - Zinkann, G.

AU - Bedoor, S.

AU - Shetty, D.

AU - Wuosmaa, A.

AU - Carnelli, P.

AU - Figueira, J. M.

AU - Chen, A. A.

AU - Irvine, D.

AU - Manwell, S.

AU - Lighthall, J. C.

AU - Marley, S. T.

AU - Patel, N.

AU - Paul, M.

PY - 2012

Y1 - 2012

N2 - The nucleosynthetic flow in type I X-ray Bursts (XRBs) is driven by the triple-α, rp and α,p processes. Several intermediate mass nuclei, 22Mg, 26Si, 30S, and 34Ar, have been identified as possible candidates for waiting points in XRBs. When such a nucleus is reached, the flow stalls due to a (p, γ)-(γ, p) equilibrium and must await β decay unless the (α, p) reaction is fast enough to break out of the waiting point first. A method to study these αp-process reactions has been developed whereby the time-inverse reaction is studied in inverse kinematics using radioactive ion beams produced by the in-flight method at the Argonne National Laboratory ATLAS facility. These time-inverse reactions have been used to study all four of the α, p process waiting points via the p(25Al,22Mg)α, p(33Cl,30S)α, and p(37K, 34Ar)α reactions. The data from these studies have been used to determine rates for 22Mg(α, p)25Al, 26Si(α, p)29P, 30S(α, p) 33Cl, and 34Ar(α, p)37K and have also been compared with theoretical calculations. The results and possible implications for nucleosynthesis in XRBs will be discussed.

AB - The nucleosynthetic flow in type I X-ray Bursts (XRBs) is driven by the triple-α, rp and α,p processes. Several intermediate mass nuclei, 22Mg, 26Si, 30S, and 34Ar, have been identified as possible candidates for waiting points in XRBs. When such a nucleus is reached, the flow stalls due to a (p, γ)-(γ, p) equilibrium and must await β decay unless the (α, p) reaction is fast enough to break out of the waiting point first. A method to study these αp-process reactions has been developed whereby the time-inverse reaction is studied in inverse kinematics using radioactive ion beams produced by the in-flight method at the Argonne National Laboratory ATLAS facility. These time-inverse reactions have been used to study all four of the α, p process waiting points via the p(25Al,22Mg)α, p(33Cl,30S)α, and p(37K, 34Ar)α reactions. The data from these studies have been used to determine rates for 22Mg(α, p)25Al, 26Si(α, p)29P, 30S(α, p) 33Cl, and 34Ar(α, p)37K and have also been compared with theoretical calculations. The results and possible implications for nucleosynthesis in XRBs will be discussed.

UR - http://www.scopus.com/inward/record.url?scp=85061021748&partnerID=8YFLogxK

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.conferencearticle???

AN - SCOPUS:85061021748

SN - 1824-8039

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 12th International Symposium on Nuclei in the Cosmos, NIC 2012

Y2 - 5 August 2012 through 12 August 2012

ER -

Radioactive ion beam studies of α, p process waiting points in X-Ray Bursts

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