Events cuts:
- |Vz| < 6.0cm
- |Vz-VzVpd| < 3.0cm
- 20-40% Centrality

Tracking and PID cuts:
- nHitsFit > 20 && nHitsFit/nHitsPoss > 0.52
- at least one hit in every layer of PXL and IST. 
- pT > 1.2 for kaons and pions
- |nSigmaPion| < 3.0 
- |nSigmaKaon| < 2.0

HFT cuts (Topological cuts):
- cos(θ) > 0.995
- dcaDaughters < 50μm
- dca(K) and dca(π) > 80μm
- 1.6 < mass < 2.1

Scale MixedEvent/FG (2.0 < m < 2.1) = 6

Fit and paramters:

  NO.   NAME      VALUE            ERROR          SIZE      DERIVATIVE
   1  p0           8.47620e+01   9.50977e+00  -1.47036e-02   4.27780e-05
   2  p1           1.86504e+00   1.96153e-03   2.93637e-06  -2.32665e-01
   3  p2           1.62188e-02   1.93562e-03   4.53283e-06   3.34073e-01
   4  p3           7.52758e+00   2.31229e-01   3.06236e-04   2.03207e-03
   5  p4          -1.59234e+00   1.24526e-01  -2.08207e-04   4.00861e-03
Significance = 19