Measurement of the 18F(p,α)15O cross section at nova energies

D. W. Bardayan; J. C. Batchelder; J. C. Blackmon; A. E. Champagne; T. Davinson; R. Fitzgerald; W. R. Hix; C. Iliadis; R. L. Kozub; Z. Ma; S. Parete-Koon; P. D. Parker; N. Shu; M. S. Smith; P. J. Woods

doi:10.1016/S0375-9474(03)00873-X

Measurement of the ¹⁸F(p,α)¹⁵O cross section at nova energies

D. W. Bardayan, J. C. Batchelder, J. C. Blackmon, A. E. Champagne, T. Davinson, R. Fitzgerald, W. R. Hix, C. Iliadis, R. L. Kozub, Z. Ma, S. Parete-Koon, P. D. Parker, N. Shu, M. S. Smith, P. J. Woods

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

2 Scopus citations

Abstract

Production of the radioisotope ¹⁸F in novae is severely constrained by the rate of the ¹⁸F(p,α)¹⁵O reaction. A resonance at E_c.m. = 330 keV may strongly enhance the 18F(p,α)¹⁵O reaction rate, but its strength has been very uncertain. We have determined the strength of this important resonance by measuring the ¹⁸F(p,α)¹⁵O cross section on-and off-resonance using a radioactive ¹⁸F beam at ORNL's Holifield Radioactive Ion Beam Facility. We find that its resonance strength is 1.48 ± 0.46 eV, and that it dominates the ¹⁸F(p,α)¹⁵O reaction rate over a significant range of temperatures characteristic of nova outbursts occuring on ONeMg white dwarfs.

Original language	English
Pages (from-to)	590-592
Number of pages	3
Journal	Nuclear Physics A
Volume	723
Issue number	1-2
DOIs	https://doi.org/10.1016/S0375-9474(03)00873-X
State	Published - Jul 28 2003

Funding

‘ORNL is managed by UT-Bat&lie, ‘Supported by NASA under contract USDOE under contract DE-AC05-OOOR22725. NSF under contract AST-9877130 and by the JIHIR.

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Bardayan, D. W., Batchelder, J. C., Blackmon, J. C., Champagne, A. E., Davinson, T., Fitzgerald, R., Hix, W. R., Iliadis, C., Kozub, R. L., Ma, Z., Parete-Koon, S., Parker, P. D., Shu, N., Smith, M. S., & Woods, P. J. (2003). Measurement of the ¹⁸F(p,α)¹⁵O cross section at nova energies. Nuclear Physics A, 723(1-2), 590-592. https://doi.org/10.1016/S0375-9474(03)00873-X

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title = "Measurement of the 18F(p,α)15O cross section at nova energies",

abstract = "Production of the radioisotope 18F in novae is severely constrained by the rate of the 18F(p,α)15O reaction. A resonance at Ec.m. = 330 keV may strongly enhance the 18F(p,α)15O reaction rate, but its strength has been very uncertain. We have determined the strength of this important resonance by measuring the 18F(p,α)15O cross section on-and off-resonance using a radioactive 18F beam at ORNL's Holifield Radioactive Ion Beam Facility. We find that its resonance strength is 1.48 ± 0.46 eV, and that it dominates the 18F(p,α)15O reaction rate over a significant range of temperatures characteristic of nova outbursts occuring on ONeMg white dwarfs.",

author = "Bardayan, {D. W.} and Batchelder, {J. C.} and Blackmon, {J. C.} and Champagne, {A. E.} and T. Davinson and R. Fitzgerald and Hix, {W. R.} and C. Iliadis and Kozub, {R. L.} and Z. Ma and S. Parete-Koon and Parker, {P. D.} and N. Shu and Smith, {M. S.} and Woods, {P. J.}",

year = "2003",

month = jul,

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doi = "10.1016/S0375-9474(03)00873-X",

language = "English",

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pages = "590--592",

journal = "Nuclear Physics A",

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TY - JOUR

T1 - Measurement of the 18F(p,α)15O cross section at nova energies

AU - Bardayan, D. W.

AU - Batchelder, J. C.

AU - Blackmon, J. C.

AU - Champagne, A. E.

AU - Davinson, T.

AU - Fitzgerald, R.

AU - Hix, W. R.

AU - Iliadis, C.

AU - Kozub, R. L.

AU - Ma, Z.

AU - Parete-Koon, S.

AU - Parker, P. D.

AU - Shu, N.

AU - Smith, M. S.

AU - Woods, P. J.

PY - 2003/7/28

Y1 - 2003/7/28

N2 - Production of the radioisotope 18F in novae is severely constrained by the rate of the 18F(p,α)15O reaction. A resonance at Ec.m. = 330 keV may strongly enhance the 18F(p,α)15O reaction rate, but its strength has been very uncertain. We have determined the strength of this important resonance by measuring the 18F(p,α)15O cross section on-and off-resonance using a radioactive 18F beam at ORNL's Holifield Radioactive Ion Beam Facility. We find that its resonance strength is 1.48 ± 0.46 eV, and that it dominates the 18F(p,α)15O reaction rate over a significant range of temperatures characteristic of nova outbursts occuring on ONeMg white dwarfs.

AB - Production of the radioisotope 18F in novae is severely constrained by the rate of the 18F(p,α)15O reaction. A resonance at Ec.m. = 330 keV may strongly enhance the 18F(p,α)15O reaction rate, but its strength has been very uncertain. We have determined the strength of this important resonance by measuring the 18F(p,α)15O cross section on-and off-resonance using a radioactive 18F beam at ORNL's Holifield Radioactive Ion Beam Facility. We find that its resonance strength is 1.48 ± 0.46 eV, and that it dominates the 18F(p,α)15O reaction rate over a significant range of temperatures characteristic of nova outbursts occuring on ONeMg white dwarfs.

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U2 - 10.1016/S0375-9474(03)00873-X

DO - 10.1016/S0375-9474(03)00873-X

M3 - Article

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SN - 0375-9474

VL - 723

SP - 590

EP - 592

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1-2

ER -

Measurement of the ¹⁸F(p,α)¹⁵O cross section at nova energies

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