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This is 'triple G' group! We chose 15O+4He fusion reaction to study. We use the example from the wiki 'Dispersion' as a starting point and do the following:

1, Edit the line describing the elements such that it consists of  a drift, a 45-degree dipole magnet with a 1 meter bending radius and a drift. After modification, the lines 13-17 look like:
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DL .1; {drift length .1 m}

DP 1. 45. .05; {parallel face dipole, radius 1.0 m, angle 45 deg, aperture} Dl .1;{drift length .1 m}

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 2, Run cosy and get the following output (and discussed the meanings of the first column which is related to the x positions in the final coordinates):
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1.000000     0.1665335E-15 0.0000000E+00 0.0000000E+00-0.4147687     100000
0.9071068      1.000000     0.0000000E+00 0.0000000E+00-0.1881197     010000
0.0000000E+00 0.0000000E+00 0.6053100    -0.6936741     0.0000000E+00 001000
0.0000000E+00 0.0000000E+00 0.9133969     0.6053100     0.0000000E+00 000100
0.0000000E+00 0.0000000E+00 0.0000000E+00 0.0000000E+00  1.000000     000010
0.1881197     0.4147687     0.0000000E+00 0.0000000E+00 0.2260644     000001
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 3, Set the properties of the beam by changing the 'SB' command (dE/E is 5%):
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 SB 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.025 0.0 0.0 0.0
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 4,