Physics list for studying fragmentation processes

Hi everyone,

I need to simulate interaction of 12C beam (27.5A GeV/c) with 12C target. I tried FTFP_BERT, FTFP_INCLXX, QGSP_INCLXX. The main problem that these physics lists don’t give me heavy fragments of the beam (eg 10B or 11B), only something kicked out of target as it has very small momentum. Can you advice something to try?

Cheers,
Yuliia