Done
Introduction
All the 9 modes for generic and signal MC had been fitted to get D mass.
For the event selection, click 'png' or 'eps' to see the plot.
For the fitting result, click the figure to open the related 'eps' file to see the details.
At the end, the masses are summarized in a table.
Fit all modes for Signal MC
Mode 0 :'kpi'
| D0_to_Kpi : [ png |
| D0B_to_Kpi : [ png |
Fit :
Mode 1 : 'kpipi0'
| D0_to_Kpipi0 : [ png |
| D0B_to_Kpipi0 : [ png |
Fit:
Mode 3 : 'kpipipi'
| D0_to_Kpipipi : [ png |
| D0B_to_Kpipipi : [ png |
Fit:
Mode 200: 'kpipi'
| Dp_to_Kpipi : [ png |
| Dm_to_Kpipi : [ png |
Fit:
Mode 201: 'kpipipi0'
| Dp_to_Kpipipi0 : [ png |
| Dm_to_Kpipipi0 : [ png |
Fit:
Mode 202: 'kspi'
| Dp_to_Kspi : [ png |
| Dm_to_Kspi : [ png |
Fit:
Mode 203: 'kspipi0'
| Dp_to_Kspipi0 : [ png |
| Dm_to_Kspipi0 : [ png |
Fit:
Mode 204: 'kspipipi'
| Dp_to_Kspipipi : [ png |
| Dm_to_Kspipipi : [ png |
Fit:
Mode 205: 'kkpi'
| Dp_to_KKpi : [ png |
| Dm_to_KKpi : [ png |
Fit:
Generic MC
Mode 0 :'kpi'
| D0_to_Kpi : [ png |
| D0B_to_Kpi : [ png |
Fit:
Mode 1 :'kpipi0'
| D0_to_Kpipi0 : [ png |
| D0B_to_Kpipi0 : [ png |
Fit:
Mode 3 : 'kpipipi'
| D0_to_Kpipipi : [ png |
| D0B_to_Kpipipi : [ png |
Fit:
Mode 200: 'kpipi'
| Dp_to_Kpipi : [ png |
| Dm_to_Kpipi : [ png |
Fit:
Mode 201: 'kpipipi0'
| Dp_to_Kpipipi0 : [ png |
| Dm_to_Kpipipi0 : [ png |
Fit:
Mode 202: 'kspi'
| Dp_to_Kspi : [ png |
| Dm_to_Kspi : [ png |
Fit:
Mode 203: 'kspipi0'
| Dp_to_Kspipi0 : [ png |
| Dm_to_Kspipi0 : [ png |
Fit:
Mode 204: 'kspipipi'
| Dp_to_Kspipipi : [ png |
| Dm_to_Kspipipi : [ png |
Mode 205: 'kkpi'
| Dp_to_KKpi : [ png |
| Dm_to_KKpi : [ png |
Fit:
Read out the D masse
| Mode | Signal MC | Generic MC |
|---|---|---|
| 0 : 'kpi' | 1.8649612 +/- 0.0000079 | 1.8642884 +/- 0.0000027 |
| 1 : 'kpipi0' | 1.8650175 +/- 0.0000056 | 1.8643464 +/- 0.0000025 |
| 3 : 'kpipipi' | 1.8649525 +/- 0.0000058 | 1.8642809 +/- 0.0000028 |
| 200: 'kpipi' | 1.8697706 +/- 0.0000058 | 1.8690886 +/- 0.0000021 |
| 201: 'kpipipi0' | 1.8697969 +/- 0.0000097 | 1.8691119 +/- 0.0000046 |
| 202: 'kspi' | 1.869760 +/- 0.000012 | 1.8690835 +/- 0.0000059 |
| 203: 'kspipi0' | 1.869801 +/- 0.000012 | 1.8691089 +/- 0.0000057 |
| 204: 'kspipipi' | 1.869747 +/- 0.000010 | 1.8690820 +/- 0.0000058 |
| 205: 'kkpi' | 1.869777 +/- 0.000012 | 1.8690862 +/- 0.0000062 |
Questions and Plan
- Change "xi" in 1-sigma to fit again, for all modes?
- Compare the result with the the input value :
The MC description file is located at: $C3_DATA/evt.pdl
- For certain mode:
D0-> K- pi+ ( Get the mass of D, say D1) D0-> K- pi+ pi0 ( Get another mass of D, say D2) Delta (m) = D1-D2 > (?) 0. Exaplain why.
Suggestions
Need to use the latest ntuple:
ntbase = '/nfs/cor/an1/ponyisi/dhad/summerconf/signal/dtuple_c_0525_p2_1104/' genbase = '/nfs/cor/an1/ponyisi/dhad/summerconf/generic_full_10x/' database = '/cdat/dafc/dhad/summerconf/data/'
Check the fitpars.C and TranslateFitParms.C before fit