New 19Ne level observed with a thick target 18F(p,p)18F measurement

D. W. Bardayan; J. C. Blackmon; J. Gómez del Campo; R. L. Kozub; J. F. Liang; Z. Ma; L. Sahin; D. Shapira; M. S. Smith

doi:10.1016/j.nuclphysa.2005.05.133

New ¹⁹Ne level observed with a thick target ¹⁸F(p,p)¹⁸F measurement

D. W. Bardayan, J. C. Blackmon, J. Gómez del Campo, R. L. Kozub, J. F. Liang, Z. Ma, L. Sahin, D. Shapira, M. S. Smith

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

2 Scopus citations

Abstract

The rates of the ¹⁸F(p, α)¹⁵O and ¹⁸F(p, γ)¹⁹Ne reactions in astrophysical environments depend on the properties of ¹⁹Ne levels above the ¹⁸F + p threshold. There are at least 8 levels in the mirror nucleus ¹⁹F for which analogs have not been observed in ¹⁹Ne in the excitation energy range E_x = 6.4 - 7.6 MeV. These levels may significantly enhance the ¹⁸F + p reaction rates, and thus we have made a search for these levels by measuring the ¹H(¹⁸F,p)¹⁸F excitation function over the energy range E_c.m. = 0.3 - 1.3 MeV. We have identified and measured the properties of a newly observed level at E_x = 7.420 ± 0.014 MeV, which is most likely the mirror to the J^π = 7/2⁺ ¹⁹F level at 7.56 MeV. We have additionally found a significant discrepancy with a recent compilation for the properties of a ¹⁹Ne state at E_x = 7.5 MeV and set upper limits on the proton widths of missing levels.

Original language	English
Pages (from-to)	737-740
Number of pages	4
Journal	Nuclear Physics A
Volume	758
Issue number	1-4 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.nuclphysa.2005.05.133
State	Published - 25 Jul 2005
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.nuclphysa.2005.05.133

Cite this

@article{720e64791b124be8a55dfccab2e80283,

title = "New 19Ne level observed with a thick target 18F(p,p)18F measurement",

abstract = "The rates of the 18F(p, α)15O and 18F(p, γ)19Ne reactions in astrophysical environments depend on the properties of 19Ne levels above the 18F + p threshold. There are at least 8 levels in the mirror nucleus 19F for which analogs have not been observed in 19Ne in the excitation energy range Ex = 6.4 - 7.6 MeV. These levels may significantly enhance the 18F + p reaction rates, and thus we have made a search for these levels by measuring the 1H(18F,p)18F excitation function over the energy range Ec.m. = 0.3 - 1.3 MeV. We have identified and measured the properties of a newly observed level at Ex = 7.420 ± 0.014 MeV, which is most likely the mirror to the Jπ = 7/2+ 19F level at 7.56 MeV. We have additionally found a significant discrepancy with a recent compilation for the properties of a 19Ne state at Ex = 7.5 MeV and set upper limits on the proton widths of missing levels.",

author = "Bardayan, {D. W.} and Blackmon, {J. C.} and {G{\'o}mez del Campo}, J. and Kozub, {R. L.} and Liang, {J. F.} and Z. Ma and L. Sahin and D. Shapira and Smith, {M. S.}",

year = "2005",

month = jul,

day = "25",

doi = "10.1016/j.nuclphysa.2005.05.133",

language = "English",

volume = "758",

pages = "737--740",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

number = "1-4 SPEC. ISS.",

}

TY - JOUR

T1 - New 19Ne level observed with a thick target 18F(p,p)18F measurement

AU - Bardayan, D. W.

AU - Blackmon, J. C.

AU - Gómez del Campo, J.

AU - Kozub, R. L.

AU - Liang, J. F.

AU - Ma, Z.

AU - Sahin, L.

AU - Shapira, D.

AU - Smith, M. S.

PY - 2005/7/25

Y1 - 2005/7/25

N2 - The rates of the 18F(p, α)15O and 18F(p, γ)19Ne reactions in astrophysical environments depend on the properties of 19Ne levels above the 18F + p threshold. There are at least 8 levels in the mirror nucleus 19F for which analogs have not been observed in 19Ne in the excitation energy range Ex = 6.4 - 7.6 MeV. These levels may significantly enhance the 18F + p reaction rates, and thus we have made a search for these levels by measuring the 1H(18F,p)18F excitation function over the energy range Ec.m. = 0.3 - 1.3 MeV. We have identified and measured the properties of a newly observed level at Ex = 7.420 ± 0.014 MeV, which is most likely the mirror to the Jπ = 7/2+ 19F level at 7.56 MeV. We have additionally found a significant discrepancy with a recent compilation for the properties of a 19Ne state at Ex = 7.5 MeV and set upper limits on the proton widths of missing levels.

AB - The rates of the 18F(p, α)15O and 18F(p, γ)19Ne reactions in astrophysical environments depend on the properties of 19Ne levels above the 18F + p threshold. There are at least 8 levels in the mirror nucleus 19F for which analogs have not been observed in 19Ne in the excitation energy range Ex = 6.4 - 7.6 MeV. These levels may significantly enhance the 18F + p reaction rates, and thus we have made a search for these levels by measuring the 1H(18F,p)18F excitation function over the energy range Ec.m. = 0.3 - 1.3 MeV. We have identified and measured the properties of a newly observed level at Ex = 7.420 ± 0.014 MeV, which is most likely the mirror to the Jπ = 7/2+ 19F level at 7.56 MeV. We have additionally found a significant discrepancy with a recent compilation for the properties of a 19Ne state at Ex = 7.5 MeV and set upper limits on the proton widths of missing levels.

UR - http://www.scopus.com/inward/record.url?scp=21044458586&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysa.2005.05.133

DO - 10.1016/j.nuclphysa.2005.05.133

M3 - Article

AN - SCOPUS:21044458586

SN - 0375-9474

VL - 758

SP - 737

EP - 740

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1-4 SPEC. ISS.

ER -

New ¹⁹Ne level observed with a thick target ¹⁸F(p,p)¹⁸F measurement

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this