Measurement of the 24Mg(p,t)22Mg reaction for the states near the 21Na + p threshold

S. Michimasa, S. Kubono, S. H. Park, T. Teranishi, Y. Yanagisawa, N. Imai, Zs Fülöp, X. Liu, T. Minemura, C. C. Yun, J. M. D'Auria, K. P. Jackson

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Abstract

Differential cross-sections of the 24Mg(p,t)22Mg reaction were measured at 34.68 MeV for the states near the proton threshold at 5.502 MeV in 22Mg. Among them, the new states at 5.962, 6.046, 6.246 and 6.323 MeV, which were reported previously, have been confirmed. Angular distributions for these states were analyzed by distorted-wave Born-approximation calculations to deduce the spins and parities. The angular distribution for the 5.714 MeV state, which is considered to be most crucial for the stellar reaction 21Na(p,γ)22Mg, has been found to be consistent with Jπ = 0+ assignment. The 6.046 MeV state is newly assigned to have Jπ = 0+, and the 5.962 MeV state is tentatively assigned to have Jπ = (1-). These two states will also play an important role for 22Mg production in novae.

Original languageEnglish
Pages (from-to)275-278
Number of pages4
JournalEuropean Physical Journal A
Volume14
Issue number3
DOIs
Publication statusPublished - Jul 1 2002

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angular distribution
novae
thresholds
Born approximation
parity
protons
cross sections

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Michimasa, S., Kubono, S., Park, S. H., Teranishi, T., Yanagisawa, Y., Imai, N., ... Jackson, K. P. (2002). Measurement of the 24Mg(p,t)22Mg reaction for the states near the 21Na + p threshold. European Physical Journal A, 14(3), 275-278. https://doi.org/10.1140/epja/i2002-10024-x

Measurement of the 24Mg(p,t)22Mg reaction for the states near the 21Na + p threshold. / Michimasa, S.; Kubono, S.; Park, S. H.; Teranishi, T.; Yanagisawa, Y.; Imai, N.; Fülöp, Zs; Liu, X.; Minemura, T.; Yun, C. C.; D'Auria, J. M.; Jackson, K. P.

In: European Physical Journal A, Vol. 14, No. 3, 01.07.2002, p. 275-278.

Research output: Contribution to journalArticle

Michimasa, S, Kubono, S, Park, SH, Teranishi, T, Yanagisawa, Y, Imai, N, Fülöp, Z, Liu, X, Minemura, T, Yun, CC, D'Auria, JM & Jackson, KP 2002, 'Measurement of the 24Mg(p,t)22Mg reaction for the states near the 21Na + p threshold', European Physical Journal A, vol. 14, no. 3, pp. 275-278. https://doi.org/10.1140/epja/i2002-10024-x
Michimasa, S. ; Kubono, S. ; Park, S. H. ; Teranishi, T. ; Yanagisawa, Y. ; Imai, N. ; Fülöp, Zs ; Liu, X. ; Minemura, T. ; Yun, C. C. ; D'Auria, J. M. ; Jackson, K. P. / Measurement of the 24Mg(p,t)22Mg reaction for the states near the 21Na + p threshold. In: European Physical Journal A. 2002 ; Vol. 14, No. 3. pp. 275-278.
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AB - Differential cross-sections of the 24Mg(p,t)22Mg reaction were measured at 34.68 MeV for the states near the proton threshold at 5.502 MeV in 22Mg. Among them, the new states at 5.962, 6.046, 6.246 and 6.323 MeV, which were reported previously, have been confirmed. Angular distributions for these states were analyzed by distorted-wave Born-approximation calculations to deduce the spins and parities. The angular distribution for the 5.714 MeV state, which is considered to be most crucial for the stellar reaction 21Na(p,γ)22Mg, has been found to be consistent with Jπ = 0+ assignment. The 6.046 MeV state is newly assigned to have Jπ = 0+, and the 5.962 MeV state is tentatively assigned to have Jπ = (1-). These two states will also play an important role for 22Mg production in novae.

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