Scattering of 3He on 12C and the inelastic form factor

Demyanova, A. S.; Svinareva, E.F.; Goncharov, S. A.; Ershov, S. N.; Gareev, F.A.; Kazacha, G.S.; Ogloblin, A. A.; Vaagen, J. S.

doi:10.1016/0375-9474(92)90213-4

Cited by 23 publications

(16 citation statements)

References 8 publications

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“…All values of the deformation lengths extracted from the present work lie within or very close to the range of the corresponding values previously extracted from other particles on 12 C [28][29][30][31]. It can be seen from Table 3 that the values of imaginary deformation lengths determined here using the present potential model for the 2 + and 3 − excited states in 12 C increase with increasing pion kinetic energy, except for the case of 180 MeV π − inelastic scattering off 3 − state in 12 C. This 180 MeV energy lies in the (3,3) resonance region of pions.…”

Section: Resultssupporting

confidence: 69%

“…The resulting deformation lengths for all collective states from the present potential model, determined by visually adjusting the calculations to reproduce the data are listed in Table 3 compared with those obtained from the corresponding ones previously extracted by others [28][29][30][31]. It is clear from Table 3 that the deformation lengths of the real potential are greater than the corresponding ones for the imaginary potential in all cases under consideration.…”

Section: Resultsmentioning

confidence: 94%

“…Deformation lengths from π ± inelastic scattering on 12 C calculated using the present potential model compared with those extracted from other particles on 12 C[28][29][30][31] …”

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confidence: 99%

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Cluster Model Analysis of Pion Elastic and Inelastic Scattering from 12C

Ebrahim

2011

Braz J Phys

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Angular distributions of differential cross sections for the 12 C(π ± , π ± ) 12 C and 12 C(π ± , π ± ) 12 C * reactions at pion kinetic energy ranging from 50 to 260 MeV have been analyzed with the 3α-particle model of 12 C. The model provides good fits to a wide range of data. Differential cross sections for inelastic transitions to the (2 + ; 4.44 MeV) and (3 − ; 9.64 MeV) states in 12 C are computed and the deformation lengths δ 2 and δ 3 are extracted. It is found that the extracted deformation lengths are sensitive to the nuclear model used and similar to the corresponding values found with other probes and nuclear models.

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Section: Resultssupporting

confidence: 69%

Section: Resultsmentioning

confidence: 94%

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Cluster Model Analysis of Pion Elastic and Inelastic Scattering from 12C

Ebrahim

2011

Braz J Phys

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“…Fortunately the pre-rainbow Airy structure in the scattering from the Hoyle state was measured in the low incident energy region E L =34.7 MeV many years ago in 3 He scattering [16] as well as the high energy scattering at 72 MeV [17] where the falloff of the cross sections is seen in the experimental data. However, unfortunately these inelastic scattering data from the Hoyle state have been forgotten and have never been studied from the theoretical point of view.…”

mentioning

confidence: 99%

“…(Color online) The calculated elastic and inelastic angular distributions (solid lines) for the 2 + (4.44MeV), 0 + 2 (7.65 MeV) and 3 − (9.63 MeV) states of 12 C in 3 He+ 12 C scattering at E L =72 and 34.7 MeV are compared with the experimental data (points)[16,17].…”

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confidence: 99%

Evidence for strong refraction ofHe3in an α-particle condensate

Ohkubo¹,

Hirabayashi²

2007

Phys. Rev. C

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We have analyzed 3 He scattering from 12 C at 34.7 and 72 MeV in a coupled channel method with a double folding potential derived from the precise wave functions for the ground 0 + state and 0 + 2 (7.65 MeV) Hoyle state, which has been suggested to be an α particle condensate. It is found that strong refraction of 3 He in the Hoyle state can be clearly seen in the experimental angular distribution at low incident energy region as an Airy minimum of the pre-rainbow oscillations.

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Cluster Model Analysis of Kaon Scattering from 12C

Ebrahim

2012

Braz J Phys

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Angular distributions of differential cross sections for the interaction of K + mesons with 12 C nucleus at beam momenta of 635, 715, and 800 MeV/c have been analyzed using 3α-particle model of 12 C. Differential cross sections for inelastic transitions to the (2 + ; 4.44 MeV) and (3 − ; 9.64 MeV) states in 12 C are calculated, and deformation lengths δ 2 and δ 3 are extracted and consistent with other works. Good agreement with experimental data of elastic and inelastic K ± -12 C scattering is obtained. IntroductionThe K + nucleus scattering is of considerable interest because of relative weak kaon nucleon (KN) interaction. K + -nucleus cross sections should be fairly weak and the amplitudes reasonably simple because of the simplicity of K + N system. The K + -nucleus interaction is the weakest of any strongly interacting probe, and the resulting mean free path is expected to be large (in the order of 7 fm). Therefore, K + can penetrate quite freely into the central region of the target nucleus, having time to undergo predominantly single K + N collisions and appearing to be a good probe for the distribution of neutrons in nuclei, while electron scattering is applied to study the nuclear charge density. There is no true absorption of K + to complicate things, in distinction to the case of low energy π-nucleus scattering, where the mean free path is also large. Another difference is that K + wave lengths are small enough to sense individual nucleons within nuclei, where λ=2 fm for 50 MeV pion kentic energy while λ=0.5 fm for 715 MeV/c kaon lab momentum [1].On the contrary, the K − N system has many narrow resonances and there are open channels down to the K − N threshold. Cross sections are comparable to those for NN scattering. Therefore, we expect that K − -nucleus cross sections reflect these features: The interaction is strong and the amplitudes are expected to be complicated [2].Recently, coupled-channels calculations for elastic and inelastic scattering of K + at

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Scattering of 3He on 12C and the inelastic form factor

Cited by 23 publications

References 8 publications

Cluster Model Analysis of Pion Elastic and Inelastic Scattering from 12C

Cluster Model Analysis of Pion Elastic and Inelastic Scattering from 12C

Evidence for strong refraction ofHe3in an α-particle condensate

Cluster Model Analysis of Kaon Scattering from 12C

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