EXP_6Be

Take a working macros for simulation for EXP1904. It may be found in

expertroot/macro/EXP1904_H7/sim

branch

406_exp1904_h7_sim

Step by step employ following changes:

1. delete the central telescope;
2. change the thickness of veto detector (third layer of side telescopes) to 10 cm;
3. introduce the reaction ⁶Li + p --> ⁶Be + n with subsequent decay ⁶Be --> ⁴He + p + p;
   • the decay occurs in the point of the reaction;
   • beam cross-section is infinitely small;
   • beam direction coincidences with the Z-axis in laboratory system;
4. delete the beam detector (ToF system and MWPC's)
5. reconstruct the ⁶Be invariant mass under conditions:
   • only one particle per telescope was registered;
   • beam energy and size is constant and known;
6. replace the third layer of telescopes by CsI detector;

Provide results of steps mentioned above in individual comments.