Gamow-Teller strength for the analog transitions to the first T=1/2,J{sup {pi}}=3/2{sup -} states in {sup 13}C and {sup 13}N and the implications for type Ia supernovae

Journal Article · Fri Feb 15 04:00:00 EST 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.77.024307· OSTI ID:21068112

Zegers, R G. T.; Brown, E F; Brown, B A; Hitt, G W ^[1]; Akimune, H; Kinoshita, M; Yamagata, T ^[2]; Austin, Sam M; Shimbara, Y ^[1]; Berg, A M. van den; Harakeh, M N ^[3]; Chamulak, D A ^[4]; Fujita, Y ^[5]; Fujiwara, M ^[6]; Gales, S ^[7]; Hashimoto, H; Kawase, K; Nakanishi, K; Okumura, S; Yosoi, M ^[8]

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1. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321 (United States)
2. Department of Physics, Konan University, Kobe, Hyogo, 658-8501 (Japan)
3. Kernfysisch Versneller Instituut, University of Groningen, Zernikelaan 25, 9747 AA Groningen (Netherlands)
4. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
5. Department of Physics, Osaka University, Toyonaka, Osaka 560-0043 (Japan)
6. Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizu, Kyoto 619-0215 (Japan)
7. Institut de Physique Nucleaire, IN2P3-CNRS, Orsay (France)
8. Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047 (Japan)

The Gamow-Teller strength for the transition from the ground state of {sup 13}C to the T=1/2,J{sup {pi}}=3/2{sup -} excited state at 3.51 MeV in {sup 13}N is extracted via the {sup 13}C({sup 3}He,t) reaction at 420 MeV. In contrast to results from earlier (p,n) studies on {sup 13}C, a good agreement with shell-model calculations and the empirical unit cross-section systematics from other nuclei is found. The results are used to study the analog {sup 13}N(e{sup -},{nu}{sub e}){sup 13}C reaction, which plays a role in the pre-explosion convective phase of type Ia supernovae. Although the differences between the results from the ({sup 3}He,t) and (p,n) data significantly affect the deduced electron-capture rate and the net heat deposition in the star resulting from this transition, the overall effect on the pre-explosive evolution is small.

• OSTI ID: 21068112
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 77; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON 13
CARBON 13 TARGET
CROSS SECTIONS
ELECTRON CAPTURE
ELECTRON NEUTRINOS
ELECTRONS
EXCITED STATES
GAMOW-TELLER RULES
GROUND STATES
HELIUM 3
HELIUM 3 REACTIONS
MEV RANGE
NEUTRONS
NITROGEN 13
NUCLEAR STRUCTURE
PROTON REACTIONS
SHELL MODELS
TRITONS