...fresco-transfer.¹

It is often useful to introduce lower radial cutoffs in the calculations, especially for scattering below the Coulomb barrier. With cutr (fm) or cutl you introduce a lower radial cutoff in the coupled-channel equations. Whereas cutr is the same for all partial waves, cutl allows you to define an L-dependent cutoff (L is the total angular momentum of the set). The code will use max(cutl*L*hcm,cutr). If cutr is negative, the lower cutoff is put at that distance inside the Coulomb turning point. Finally, cutc (fm) removes off-diagonal couplings inside the given radius.

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... jtmax.²

To enable greater speed and flexibility, you can define a number of angular momentum intervals jump(i), i=2,5 and the steps with which you want to perform the calculation jbord(i), i=2,5. Note that jump(1)=1 and jbord(1)=jtmin, so that the first interval is calculated fully. The omitted J values are provided by interpolation on the scattering amplitudes A(m'M':mM; L) prior to calculating cross sections. jsets is a variable that enables the calculation of positive parity (jsets=`P') or negative parity only (jsets=`M' or `N'), for each energy. If jsets=0, ` ', or F, no restriction is made.

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...³

Sometimes, for accurate elastic-scattering cross sections it is only necessary to include the elastic channel. This can be done with the option jtmin<0. Then, in the range J < abs(jtmin), transfers and excited states are ignored in the calculation.

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... shape.⁴

A large number of standard shapes are predefined, of which we mention shape=2 for the Gaussian form $\exp[-(r-R_0)^2/b^2]$ (with p(2)=r₀ and p(3)=b) as the most common alternative.

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... target.⁵

Tensor interactions and projectile/target deformation can be introduced with type=5-11. We will return to this in subsection 2.2.

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... coupling.⁶

Multi-channel spin couplings are also available with kind=3.

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... function.⁷

Radial wave functions of bound states can be obtained by setting ipc odd, intermediate iterations with ipc$\ge$3, and the final iteration with ipc>0.

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... given.⁸

If you do not want to assume a rotational model, you can introduce these couplings (either deformation length or matrix element) for each initial-to-final state through type=12,13 for projectile and target respectively. In this case, give a &step namelist specifying ib,ia,k,str for a coupling from state ib to state ia, multipolarity k and strength str (str is the reduced matrix element for Coulomb transitions and the reduced deformation length for nuclear transitions).

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... included.⁹

If ip3=1, there are no reorientation couplings for all but the monopole, if ip3=2, only reorientation couplings are included, and if ip3=3 it includes only couplings to and from the ground state. More options exist but are not presented here.

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...valmax,¹⁰

Both or none of these must be present.

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