Abstract
Using newly proposed recursion relations in [25], [26],
compact formulas are obtained for tree-level amplitudes of g1−g2−g3−g4+g5+...gn+. We then make an extension of
these recursion relations to include fermions of multi-flavors, from
which MHV and 
amplitudes are reproduced. We also
calculate non-MHV amplitudes of processes with two fermions and four
gluons. Results thus obtained are equivalent to those obtained by
extended CSW prescriptions, and those by conventional field theory
calculations.
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