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Supermultiplet Potential Model
of the Interaction
of Light Clusters and Unified Description
of Various Nuclear Reactions
Neudatchin V. G., Struzhko B. G., Lebedev V. M.
Recently we have introduced, within the supermultiplet potential model, the
lightest cluster A + B scattering phase shifts
dL[f](E).
They depend
strongly on the signature of the orbital Young tableau [f] and can be
determined in polarization experiments. The differential cross sections of
the deuteron spin-isospin flip into the singlet state are expressed in terms of
these phase shifts. The extended data on the d + t ®
ds + t ((nns + h)
(h 3He)
reaction in the energy range Elab~20-40 MeV are analyzed
as well as scarce data on the d + d
® ds + ds
((nns) + (pp)s reaction.
In particular, we discuss how to extract,
e. g., the contribution of the t + ds state from the
three-body continuum
t + p + n data. Resultively, the experiment supports the supermultiplet theory
based physically on the large difference in the strength of the potentials
VL[41](R) and
VL[32](R) or
VL[4](R) and
VL[22](R). In
the same approach, we suggest a simple explanation of the photonuclear
reactions d + t®
5He + g,
4He + g
®t + p (together with
the charge-exchange reaction
t + p®h + n),
and 4He + g ®
d + d.
Finally we predict a number of the three-cluster near-threshold states like
s3p4[f] = [331](t + t + p),
s3p5[f] = [332](h + t + d),
s4p5[f] = [432]
(a + t + d), etc.,
which can be observed in various nuclear
reactions.
PDF (1.7 Mb)
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