A simple simulation for the nnΛ search experiment at JLab

How to used the Monte Carlo Simulation

1. Download the following source files:
   nnL_simuation_20170504.tar.gz
2. Compile:
   $ make
3. Specify input parameters in "input.dat":
   * QFdata: test_kaon_he3_goga3.root ← ROOT file for QF Λ
   * QF_Num: 4000 ← the number of events of QF Λ (0--100000)
   * SpecReso_FWHM(MeV): 2 ← detector resoution
   * nnL_Num: 120 ← the number of events of nnΛ
   * NatWidth_FWHM(MeV): 0.5 ← the natural width of the nnΛ state
   * BL(MeV): -0.5 ← assumed B_Λ for the nnΛ state
   * Acc_per_1MeV: 2.45 ← Accidental background events per 1 MeV according to the previous experiment, JLab E91-016
4. Run the simulation:
   $ ./nnL_simulation

Simulation results