Fig.2 the yield of hypertriton per million events in 2-body and 3-body
channel, correct for theoretical branching ratio(24.89% vs. 40.06%):
a) 2-body channel (xlow, xhigh, xcenter, y, yerr):
2.0  5.0  3.39893 26.7902 +- 6.2998
5.0  8.0  6.39893 10.7394 +- 2.5267
8.0  11.0 9.39893 4.20426 +- 1.58342
11.0 41.0 18.7337 0.507787 +- 0.222169
3)3-body channel 
2.4  8.0  4.97644 19.1665 +- 6.58998
8.0  13.0 10.3215 5.12291 +- 1.72409
13.0 25.0 18.0001 1.92194 +- 0.669046