Branching ratio Γα/Γγ of the 4.033 MeV 3/2+ state in 19Ne

K. E. Rehm; A. H. Wuosmaa; C. L. Jiang; J. Caggiano; J. P. Greene; A. Heinz; D. Henderson; R. V.F. Janssens; E. F. Moore; G. Mukherjee; R. C. Pardo; T. Pennington; J. P. Schiffer; R. H. Siemssen; M. Paul; L. Jisonna; R. E. Segel

doi:10.1103/PhysRevC.67.065809

Branching ratio Γ_α/Γ_γ of the 4.033 MeV 3/2⁺ state in ¹⁹Ne

K. E. Rehm^*, A. H. Wuosmaa, C. L. Jiang, J. Caggiano, J. P. Greene, A. Heinz, D. Henderson, R. V.F. Janssens, E. F. Moore, G. Mukherjee, R. C. Pardo, T. Pennington, J. P. Schiffer, R. H. Siemssen, M. Paul, L. Jisonna, R. E. Segel

^*Corresponding author for this work

Racah Institute of Physics

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

35 Scopus citations

Abstract

The branching ratio Γ_α/Γ_γ of the 4.033 MeV 3/2⁺ state in ¹⁹Ne plays a crucial role in the breakout from the hot CNO cycle into the rapid proton capture process. This ratio has been studied by making use of the advantages of inverse kinematics. The state was populated via the ³He(²⁰Ne,α) ¹⁹Ne* reaction and its decay via γ or α emission was measured by detecting the heavy reaction products (¹⁹Ne or ¹⁵O) in coincidence in a magnetic spectrograph. An upper limit Γ_α/Γ_γ≤6×10^-4 has been obtained. With these results, the astrophysical reaction rate for the ¹⁵O (α, γ) ¹⁹Ne reaction has been calculated. Its influence on the breakout at various astrophysical sites, novas, x-ray bursts, and supermassive stars, is discussed.

Original language	English
Article number	065809
Pages (from-to)	658091-658099
Number of pages	9
Journal	Physical Review C - Nuclear Physics
Volume	67
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.67.065809
State	Published - Jun 2003

Access to Document

10.1103/PhysRevC.67.065809

Cite this

Rehm, K. E., Wuosmaa, A. H., Jiang, C. L., Caggiano, J., Greene, J. P., Heinz, A., Henderson, D., Janssens, R. V. F., Moore, E. F., Mukherjee, G., Pardo, R. C., Pennington, T., Schiffer, J. P., Siemssen, R. H., Paul, M., Jisonna, L., & Segel, R. E. (2003). Branching ratio Γ_α/Γ_γ of the 4.033 MeV 3/2⁺ state in ¹⁹Ne. Physical Review C - Nuclear Physics, 67(6), 658091-658099. Article 065809. https://doi.org/10.1103/PhysRevC.67.065809

@article{ad2f3ae8283a4ae7b55666c9eb665545,

title = "Branching ratio Γα/Γγ of the 4.033 MeV 3/2+ state in 19Ne",

abstract = "The branching ratio Γα/Γγ of the 4.033 MeV 3/2+ state in 19Ne plays a crucial role in the breakout from the hot CNO cycle into the rapid proton capture process. This ratio has been studied by making use of the advantages of inverse kinematics. The state was populated via the 3He(20Ne,α) 19Ne* reaction and its decay via γ or α emission was measured by detecting the heavy reaction products (19Ne or 15O) in coincidence in a magnetic spectrograph. An upper limit Γα/Γγ≤6×10-4 has been obtained. With these results, the astrophysical reaction rate for the 15O (α, γ) 19Ne reaction has been calculated. Its influence on the breakout at various astrophysical sites, novas, x-ray bursts, and supermassive stars, is discussed.",

author = "Rehm, \{K. E.\} and Wuosmaa, \{A. H.\} and Jiang, \{C. L.\} and J. Caggiano and Greene, \{J. P.\} and A. Heinz and D. Henderson and Janssens, \{R. V.F.\} and Moore, \{E. F.\} and G. Mukherjee and Pardo, \{R. C.\} and T. Pennington and Schiffer, \{J. P.\} and Siemssen, \{R. H.\} and M. Paul and L. Jisonna and Segel, \{R. E.\}",

year = "2003",

month = jun,

doi = "10.1103/PhysRevC.67.065809",

language = "אנגלית",

volume = "67",

pages = "658091--658099",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "6",

}

Rehm, KE, Wuosmaa, AH, Jiang, CL, Caggiano, J, Greene, JP, Heinz, A, Henderson, D, Janssens, RVF, Moore, EF, Mukherjee, G, Pardo, RC, Pennington, T, Schiffer, JP, Siemssen, RH, Paul, M, Jisonna, L & Segel, RE 2003, 'Branching ratio Γ_α/Γ_γ of the 4.033 MeV 3/2⁺ state in ¹⁹Ne', Physical Review C - Nuclear Physics, vol. 67, no. 6, 065809, pp. 658091-658099. https://doi.org/10.1103/PhysRevC.67.065809

TY - JOUR

T1 - Branching ratio Γα/Γγ of the 4.033 MeV 3/2+ state in 19Ne

AU - Rehm, K. E.

AU - Wuosmaa, A. H.

AU - Jiang, C. L.

AU - Caggiano, J.

AU - Greene, J. P.

AU - Heinz, A.

AU - Henderson, D.

AU - Janssens, R. V.F.

AU - Moore, E. F.

AU - Mukherjee, G.

AU - Pardo, R. C.

AU - Pennington, T.

AU - Schiffer, J. P.

AU - Siemssen, R. H.

AU - Paul, M.

AU - Jisonna, L.

AU - Segel, R. E.

PY - 2003/6

Y1 - 2003/6

N2 - The branching ratio Γα/Γγ of the 4.033 MeV 3/2+ state in 19Ne plays a crucial role in the breakout from the hot CNO cycle into the rapid proton capture process. This ratio has been studied by making use of the advantages of inverse kinematics. The state was populated via the 3He(20Ne,α) 19Ne* reaction and its decay via γ or α emission was measured by detecting the heavy reaction products (19Ne or 15O) in coincidence in a magnetic spectrograph. An upper limit Γα/Γγ≤6×10-4 has been obtained. With these results, the astrophysical reaction rate for the 15O (α, γ) 19Ne reaction has been calculated. Its influence on the breakout at various astrophysical sites, novas, x-ray bursts, and supermassive stars, is discussed.

AB - The branching ratio Γα/Γγ of the 4.033 MeV 3/2+ state in 19Ne plays a crucial role in the breakout from the hot CNO cycle into the rapid proton capture process. This ratio has been studied by making use of the advantages of inverse kinematics. The state was populated via the 3He(20Ne,α) 19Ne* reaction and its decay via γ or α emission was measured by detecting the heavy reaction products (19Ne or 15O) in coincidence in a magnetic spectrograph. An upper limit Γα/Γγ≤6×10-4 has been obtained. With these results, the astrophysical reaction rate for the 15O (α, γ) 19Ne reaction has been calculated. Its influence on the breakout at various astrophysical sites, novas, x-ray bursts, and supermassive stars, is discussed.

UR - http://www.scopus.com/inward/record.url?scp=0042261880&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.67.065809

DO - 10.1103/PhysRevC.67.065809

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:0042261880

SN - 0556-2813

VL - 67

SP - 658091

EP - 658099

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 6

M1 - 065809

ER -

Branching ratio Γ_α/Γ_γ of the 4.033 MeV 3/2⁺ state in ¹⁹Ne

Abstract

Access to Document

Other files and links

Fingerprint

Cite this