Rainbows in Nuclear Reactions and the Optical Potential

Demyanova, A. S.; Ogloblin, A. A.; Ershov, S. N.; Gareev, F.A.; Курманов, Р. С.; Svinareva, E.F.; Goncharov, S. A.; Adodin, V. V.; Burtebaev, N.; Bang, J.; Vaagen, J. S.

doi:10.1088/0031-8949/1990/t32/015

Cited by 33 publications

(2 citation statements)

References 28 publications

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“…Higher excited states of 7Be are particle unstable, hence they were not included in the calculation for the detection of 7Be. These cross-sections were calculated in the framework of the microscopic DWBA [20]. The model originally developed in [21] has been implemented to describe the projectile systems 7Li and 7Be.…”

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confidence: 99%

Direct Experimental Evidence for a Soft-Dipole Response in ⁶ He

et al. 1993

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confidence: 99%

Direct Experimental Evidence for a Soft-Dipole Response in ⁶ He

et al. 1993

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“…To detect Airy minima, we study the behavior of both the farside component of transfer reaction cross section under consideration and the farside cross-section component obtained in the case of turned-off absorption in the entrance channel (see, e.g., Refs. [17,18]). In the latter case, when calculating (3), we set | S i l |= 1 for all l. The minimum of the cross section, which is described by the farside cross-section component and whose angular position is the same or close enough to that for the Airy minimum of a particular order in the farside component, calculated with the turned-off absorption in the entrance channel, is identified as the Airy minimum of the same particular order.…”

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confidence: 99%

S-matrix Description of Refractive Effects in One-nucleon Stripping Reactions Induced by \(\alpha \)-particles on \(^{28}\)Si

Berezhnoy¹,

Molev²

2022

Acta Phys. Pol. B

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We analyze the angular distributions for the (α, 3 He) and (α, t) reactions on 28 Si for projectile energies ranging from 50 to 120 MeV based on the partial-wave representation of the transfer amplitude expressed in terms of the S-matrices for the entrance and exit channels, with an emphasis on identifying Airy minima of various orders. The calculations have been performed using a six-parameter S-matrix model and S-matrix parameters obtained from the analysis of elastic scattering data. The first-and (or) second-order Airy minima are clearly identified in the analyzed transfer reaction angular distributions at intermediate angles. The detected Airy minima are found to be due to the interference between several inner and surface partial waves. The impact parameters of these waves are in the range of 1-6 fm, the upper boundary of which is less than the strong absorption radius.

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