Direct measurement of the F-18(p,alpha)O-15 reaction at nova temperatures

C. E. Beer; A. M. Laird; A. St. J. Murphy; M. A. Bentley; L. Buchman; B. Davids; T. Davinson; Christian Aaen Diget; S. P. Fox; B. R. Fulton; U. Hager; D. Howell; L. Martin; C. Ruiz; G. Ruprecht; P. Salter; C. Vockenhuber; P. Walden

doi:10.1103/PhysRevC.83.042801

Direct measurement of the F-18(p,alpha)O-15 reaction at nova temperatures

C. E. Beer, A. M. Laird, A. St. J. Murphy, M. A. Bentley, L. Buchman, B. Davids, T. Davinson, Christian Aaen Diget, S. P. Fox, B. R. Fulton, U. Hager, D. Howell, L. Martin, C. Ruiz, G. Ruprecht, P. Salter, C. Vockenhuber, P. Walden

Physics

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

Abstract

The F-18(p, alpha)O-15 reaction rate is crucial for understanding the final abundance of F-18 predicted by nova models. The gamma-ray emission in the first few hours after a nova outburst is expected to be dominated by 511 keV annihilation photons from the decay of F-18, and so understanding its production can provide important constraints on the conditions during the outburst when compared with observations. Results are presented from the lowest-energy direct measurement to date, performed at the Isotope Separator and Accelerator radioactive beam facility at the TRIUMF laboratory, Canada. Cross section measurements at center-of-mass energies of 250, 330, 453, and 673 keV are obtained and the results compared to previous data and R-matrix calculations. The implications for the overall reaction rate in the context of nova explosions have been discussed.

Original language	English
Article number	042801
Pages (from-to)	1-4
Number of pages	4
Journal	Physical Review C
Volume	83
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.83.042801
Publication status	Published - 12 Apr 2011

Keywords

ENERGIES

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10.1103/PhysRevC.83.042801

http://prc.aps.org/abstract/PRC/v83/i4/e042801

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Beer, C. E., Laird, A. M., Murphy, A. S. J., Bentley, M. A., Buchman, L., Davids, B., Davinson, T., Diget, C. A., Fox, S. P., Fulton, B. R., Hager, U., Howell, D., Martin, L., Ruiz, C., Ruprecht, G., Salter, P., Vockenhuber, C., & Walden, P. (2011). Direct measurement of the F-18(p,alpha)O-15 reaction at nova temperatures. Physical Review C, 83(4), 1-4. Article 042801. https://doi.org/10.1103/PhysRevC.83.042801

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title = "Direct measurement of the F-18(p,alpha)O-15 reaction at nova temperatures",

abstract = "The F-18(p, alpha)O-15 reaction rate is crucial for understanding the final abundance of F-18 predicted by nova models. The gamma-ray emission in the first few hours after a nova outburst is expected to be dominated by 511 keV annihilation photons from the decay of F-18, and so understanding its production can provide important constraints on the conditions during the outburst when compared with observations. Results are presented from the lowest-energy direct measurement to date, performed at the Isotope Separator and Accelerator radioactive beam facility at the TRIUMF laboratory, Canada. Cross section measurements at center-of-mass energies of 250, 330, 453, and 673 keV are obtained and the results compared to previous data and R-matrix calculations. The implications for the overall reaction rate in the context of nova explosions have been discussed.",

keywords = "ENERGIES",

author = "Beer, {C. E.} and Laird, {A. M.} and Murphy, {A. St. J.} and Bentley, {M. A.} and L. Buchman and B. Davids and T. Davinson and Diget, {Christian Aaen} and Fox, {S. P.} and Fulton, {B. R.} and U. Hager and D. Howell and L. Martin and C. Ruiz and G. Ruprecht and P. Salter and C. Vockenhuber and P. Walden",

year = "2011",

month = apr,

day = "12",

doi = "10.1103/PhysRevC.83.042801",

language = "English",

volume = "83",

pages = "1--4",

journal = "Physical Review C",

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publisher = "American Physical Society",

number = "4",

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Beer, CE, Laird, AM, Murphy, ASJ, Bentley, MA, Buchman, L, Davids, B, Davinson, T, Diget, CA, Fox, SP, Fulton, BR, Hager, U, Howell, D, Martin, L, Ruiz, C, Ruprecht, G, Salter, P, Vockenhuber, C & Walden, P 2011, 'Direct measurement of the F-18(p,alpha)O-15 reaction at nova temperatures', Physical Review C, vol. 83, no. 4, 042801, pp. 1-4. https://doi.org/10.1103/PhysRevC.83.042801

TY - JOUR

T1 - Direct measurement of the F-18(p,alpha)O-15 reaction at nova temperatures

AU - Beer, C. E.

AU - Laird, A. M.

AU - Murphy, A. St. J.

AU - Bentley, M. A.

AU - Buchman, L.

AU - Davids, B.

AU - Davinson, T.

AU - Diget, Christian Aaen

AU - Fox, S. P.

AU - Fulton, B. R.

AU - Hager, U.

AU - Howell, D.

AU - Martin, L.

AU - Ruiz, C.

AU - Ruprecht, G.

AU - Salter, P.

AU - Vockenhuber, C.

AU - Walden, P.

PY - 2011/4/12

Y1 - 2011/4/12

N2 - The F-18(p, alpha)O-15 reaction rate is crucial for understanding the final abundance of F-18 predicted by nova models. The gamma-ray emission in the first few hours after a nova outburst is expected to be dominated by 511 keV annihilation photons from the decay of F-18, and so understanding its production can provide important constraints on the conditions during the outburst when compared with observations. Results are presented from the lowest-energy direct measurement to date, performed at the Isotope Separator and Accelerator radioactive beam facility at the TRIUMF laboratory, Canada. Cross section measurements at center-of-mass energies of 250, 330, 453, and 673 keV are obtained and the results compared to previous data and R-matrix calculations. The implications for the overall reaction rate in the context of nova explosions have been discussed.

AB - The F-18(p, alpha)O-15 reaction rate is crucial for understanding the final abundance of F-18 predicted by nova models. The gamma-ray emission in the first few hours after a nova outburst is expected to be dominated by 511 keV annihilation photons from the decay of F-18, and so understanding its production can provide important constraints on the conditions during the outburst when compared with observations. Results are presented from the lowest-energy direct measurement to date, performed at the Isotope Separator and Accelerator radioactive beam facility at the TRIUMF laboratory, Canada. Cross section measurements at center-of-mass energies of 250, 330, 453, and 673 keV are obtained and the results compared to previous data and R-matrix calculations. The implications for the overall reaction rate in the context of nova explosions have been discussed.

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JO - Physical Review C

JF - Physical Review C

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M1 - 042801

ER -

Direct measurement of the F-18(p,alpha)O-15 reaction at nova temperatures

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Keywords

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