Systematic enhancement for the 14C(p, t)12C reaction leading to the T = 0 states

Yasue, M.; Tanaka, Masahiko; Hasegawa, Tatsuo; Nisimura, K.; Kubono, S.; Ohnuma, H.; Shimizu, H.; Ieki, K.; Toyokawa, Hiroyuki; Iwase, M.; Iimura, J.; Yoshida, Hiroshi; Nakagawa, T.; Satô, Atsushi; Niizeki, T.; Takamatsu, J.; Takahashi, Yutaka; Tohei, T.; Orihara, H.; Suehiro, T.; Hayakawa, S. I.; Igarashi, M.

doi:10.1016/0375-9474(90)90240-m

Cited by 13 publications

(11 citation statements)

References 19 publications

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“…It could be narrow because of its unique cluster structure. We cannot calculate the theoretical cross section for this, but note the 3-α state in 12 C is observed in 14 C(p,t) with a strength of 3.5% of the ground state at a beam energy of 40 MeV [32]. In the current experiment, the 22.5 MeV state was measured with a strength of 3.5% and 1.6% of that of the ground state of 20 Ne at θ lab = -1…”

Section: Discussionmentioning

confidence: 57%

Spectroscopy of narrow, high-lying, low-spin states inNe20

et al. 2015

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The excited states of the 20 Ne nucleus from the ground state to Ex = 25 MeV were investigated with the 22 Ne(p,t) 20 Ne reaction at a beam energy of Ep = 60 MeV using the QDD magnetic spectrometer at iThemba LABS. Narrow, low-spin J π = 0 + , 1 − and 2 + states have been observed for the first time at high excitation energies in 20 Ne, namely at Ex = 17. 67, 18.84, 20.59, 21.16, 21.80 and 22.5 MeV. Shell-model and coupled reaction channel calculations were performed to determine the nature of the newly observed states. Candidates for T = 2 states are proposed at 3.86(5), 4.43(5) MeV and 5.07(5) MeV above the lowest 0 + , T = 2 state at Ex = 16.73 MeV. Two of these T = 2 candidates appear to result from core-excitations in the 0p-shell. The state at Ex = 22.5 MeV, which could not be interpreted by the shell-model calculations, is a tentative candidate for the 5-α cluster state.

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Section: Discussionmentioning

confidence: 57%

Spectroscopy of narrow, high-lying, low-spin states inNe20

et al. 2015

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“…[38], we obtained the enhancement factor (~2000 in this case). We used this enhancement factor to evaluate the total cross section for the p( 20 C, 18 C)t reaction at 40 A MeV.…”

Section: -2 Two Neutron Removal Reactionsmentioning

confidence: 77%

“…The OMP of p+ 20 C was taken from CH89. The OMP of t+ 12 C proposed for the 14 C(p, t) 12 C reaction at E p =40.3 MeV [38] was simply used as the OMP of t+ 18 C.…”

Section: -2 Two Neutron Removal Reactionsmentioning

confidence: 99%

“…We calculated angular distributions for the 14 C(p, t) 12 C reaction leading to the ground state in 12 C at E p =40.3 MeV by using DWUCK4 with the OMP proposed in Ref. [38]. By comparing the calculated results with the experimental data at around 0°…”

Section: -2 Two Neutron Removal Reactionsmentioning

confidence: 99%

“…However, for 20 Reaction for the relevant levels of 18 C. The calculations were done using DWUCK4 [30] with the OMP proposed in Ref. [38] for t+ 18 C. In the calculations, phenomenological enhancement factor (~2000) was taken into account. E x means the excited energy in 18 C. Table 1).…”

Section: -2 Two Neutron Removal Reactionsmentioning

confidence: 99%

See 2 more Smart Citations

One- and two-neutron removal reactions from19,20C with a proton target

Ozawa¹,

Hashizume²,

Aoki³

et al. 2011

Phys. Rev. C

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One and two-neutron removal-reactions from 19 C and 20 C have been studied using a liquid-hydrogen target at 40 A MeV. A small cross section has been observed in the one-neutron removal reaction from 20 C. The observed inclusive removal cross sections are compared with theoretical removal cross sections calculated by using shell model spectroscopic factors and Glauber-model single-particle cross-sections. The observed momentum distributions are also compared with those calculated by using continuum-discretized coupled-channel methods. Good consistency between theory and experiment is shown in the one-neutron removal reaction from 19 C. However, our theoretical calculation fails to reproduce the neutron removal reactions from 20 C, which suggests that further improvements of the theoretical descriptions are necessary.

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6-Carbon

Sukhoruchkin

Soroko

Tables of Excitations From Reactions With Charged Particles. Part 1: Z = 3 - 36

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Systematic enhancement for the 14C(p, t)12C reaction leading to the T = 0 states

Cited by 13 publications

References 19 publications

Spectroscopy of narrow, high-lying, low-spin states inNe20

Spectroscopy of narrow, high-lying, low-spin states inNe20

One- and two-neutron removal reactions from19,20C with a proton target

6-Carbon

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