Difference: B2DKstar (1 vs. 3)

Revision 32010-12-13 - RajaNandakumar

 
META TOPICPARENT name="LHCb/Private.DataAnalysis"

B- to D0 (K pi) K*-

Current status

Added:
>
>

MC ntuple production: Raja

The DaVinci file used to produce the ntuples you are running over are attached to this page at the links below.

Please note the following :

1. The files have the additional extension ".txt" added by the wiki software for safety reasons.

2. These are the latest files with a few added variables. Some of these variables (nLong, <particle>_eta, ...) are currently missing in the ntuples. They will be added in due course.

 

ntuple

ntuple is stored at /opt/ppd/lhcb/tbird/ntuples/B2DKstar/data/B2DKstar_str09.root

cuts

Using Almost exactly same cuts as B2Dpi, except cuts applied to daughters of the D were also applied to the daughters of the K* and a mess cut was applied to the K* too, with a window of 150 MeV.

The names were defined for the B2Dpi decay so are not as useful as they are for that decay 

#define Name_Of_Cuts  "thomas mod - low mv and dipchi2"

#define Negative_D_Daughter_PT_Cut               300
#define Positive_D_Daughter_PT_Cut               300
#define Negative_D_Daughter_MINIPCHI2_Cut        9
#define Positive_D_Daughter_MINIPCHI2_Cut        9
#define Negative_D_Daughter_P_Cut                2000
#define Positive_D_Daughter_P_Cut                2000
#define Negative_D_Daughter_TRACK_CHI2NDOF_Cut   8
#define Positive_D_Daughter_TRACK_CHI2NDOF_Cut   8

#define Bachelor_PT_Cut                          300
#define Bachelor_MINIPCHI2_Cut                   9
#define Bachelor_P_Cut                           2000
#define Bachelor_TRACK_CHI2NDOF_Cut              8
#define Bachelor_PIDK_Cut                        100000

#define D_FDCHI2_OWNPV_Cut                       100
#define Z_Dist_Cut                               -1
#define D_ENDVERTEX_CHI2_D_ENDVERTEX_NDOF_Cut    15
#define D_IPCHI2_OWNPV_Cut                       9
#define D_PT_Cut                                 2000

#define B_FDCHI2_OWNPV_Cut                       64
#define B_ENDVERTEX_CHI2_B_ENDVERTEX_NDOF_Cut    10
#define B_IPCHI2_OWNPV_Cut                       16
#define B_DIRA_OWNPV_Cut                         0.9999

#define Negative_D_Daughter_PIDK_211_Cut         10
#define Positive_D_Daughter_PIDK_211_Cut         10
#define Positive_D_Daughter_PIDK_321_Cut         10
#define Negative_D_Daughter_PIDK_321_Cut         10

#define D_M_Window_Cut                           21

#define B_M_Window_Cut                           50

these are saved in /home/hep/uoh35620/stuff/analyse-n-tuple/cuts/thomas.low.dip.cuts.h

this is a version of /home/hep/uoh35620/stuff/analyse-n-tuple/cuts/thomas.low.mv.cuts.h where the D IP Chi^2 has been loosened, when it was a bit tighter the monte carlo efficiency was as follows 

Cut info:
0    tot lumi   : -5.00e+12 nb-1 +/- 5.00e+12 nb-1
0    tot cands  :   153263
1    evt bfr cut:    16662
2    D daughter :    13075  78.47% +/-   0.32%
3    bachelor   :     9759  74.64% +/-   0.38%
4    after D cut:     6700  68.65% +/-   0.47%
5    after B cut:     6134  91.55% +/-   0.34%
6    after PID  :     4300  70.10% +/-   0.58%
7    nPV        :     4300 100.00% +/-   0.00%
8    event num  :     4300 100.00% +/-   0.00%
9    D mass     :     4024  93.58% +/-   0.37%
9    B mass     :     3868  96.12% +/-   0.30%
     Overall Eff:           23.21% +/-   0.33%

analysis script

Run it with the g++root command defined HowToCompileRootMacros it took ~15 hours to run with 577/nb of data, so run it on heplnx112 not 108 as 108 is slow.

plots

raw plots can be found in /opt/ppd/lhcb/tbird/analysis/b2dkstar/* for mc and data. the name of the cuts used is specified in the KstarAnalysis file and the output file, both near the top.

-- ThomasBird - 2010-09-07

Deleted:
<
<
 
META FILEATTACHMENT attachment="b2dkstar-570nb-dm.png" attr="" comment="B2DKstar D mass plot with 577/nb" date="1283869372" name="b2dkstar-570nb-dm.png" path="b2dkstar-570nb-dm.png" size="10355" stream="b2dkstar-570nb-dm.png" tmpFilename="/usr/tmp/CGItemp10763" user="ThomasBird" version="1"
META FILEATTACHMENT attachment="b2dkstar-570nb-bm.png" attr="" comment="B2DKstar B mass plot with 577/nb" date="1283869434" name="b2dkstar-570nb-bm.png" path="b2dkstar-570nb-bm.png" size="13506" stream="b2dkstar-570nb-bm.png" tmpFilename="/usr/tmp/CGItemp10877" user="ThomasBird" version="1"
META FILEATTACHMENT attachment="KstarAnalysis.C" attr="" comment="The Kstar analysis script" date="1283869675" name="KstarAnalysis.C" path="KstarAnalysis.C" size="124651" stream="KstarAnalysis.C" tmpFilename="/usr/tmp/CGItemp10955" user="ThomasBird" version="1"
Added:
>
>
META FILEATTACHMENT attachment="DaVinci-Bd2D0Kst_D02KPi-Reco06-Stripping10.py.txt" attr="" comment="File to produce the Bd decay tree" date="1292258308" name="DaVinci-Bd2D0Kst_D02KPi-Reco06-Stripping10.py.txt" path="DaVinci-Bd2D0Kst_D02KPi-Reco06-Stripping10.py" size="19284" stream="DaVinci-Bd2D0Kst_D02KPi-Reco06-Stripping10.py" tmpFilename="/usr/tmp/CGItemp4102" user="RajaNandakumar" version="1"
META FILEATTACHMENT attachment="DaVinci-Bs2D0Kst_D02KPi-Reco06-Stripping10.py.txt" attr="" comment="File to produce the Bs decay tree" date="1292258382" name="DaVinci-Bs2D0Kst_D02KPi-Reco06-Stripping10.py.txt" path="DaVinci-Bs2D0Kst_D02KPi-Reco06-Stripping10.py" size="19371" stream="DaVinci-Bs2D0Kst_D02KPi-Reco06-Stripping10.py" tmpFilename="/usr/tmp/CGItemp4245" user="RajaNandakumar" version="1"
 

Revision 22010-11-05 - StefaniaRicciardi

Changed:
<
<
META TOPICPARENT name="DataAnalysis"
>
>
META TOPICPARENT name="LHCb/Private.DataAnalysis"
 

B- to D0 (K pi) K*-

Current status

ntuple

ntuple is stored at /opt/ppd/lhcb/tbird/ntuples/B2DKstar/data/B2DKstar_str09.root

cuts

Using Almost exactly same cuts as B2Dpi, except cuts applied to daughters of the D were also applied to the daughters of the K* and a mess cut was applied to the K* too, with a window of 150 MeV.

The names were defined for the B2Dpi decay so are not as useful as they are for that decay 

#define Name_Of_Cuts  "thomas mod - low mv and dipchi2"

#define Negative_D_Daughter_PT_Cut               300
#define Positive_D_Daughter_PT_Cut               300
#define Negative_D_Daughter_MINIPCHI2_Cut        9
#define Positive_D_Daughter_MINIPCHI2_Cut        9
#define Negative_D_Daughter_P_Cut                2000
#define Positive_D_Daughter_P_Cut                2000
#define Negative_D_Daughter_TRACK_CHI2NDOF_Cut   8
#define Positive_D_Daughter_TRACK_CHI2NDOF_Cut   8

#define Bachelor_PT_Cut                          300
#define Bachelor_MINIPCHI2_Cut                   9
#define Bachelor_P_Cut                           2000
#define Bachelor_TRACK_CHI2NDOF_Cut              8
#define Bachelor_PIDK_Cut                        100000

#define D_FDCHI2_OWNPV_Cut                       100
#define Z_Dist_Cut                               -1
#define D_ENDVERTEX_CHI2_D_ENDVERTEX_NDOF_Cut    15
#define D_IPCHI2_OWNPV_Cut                       9
#define D_PT_Cut                                 2000

#define B_FDCHI2_OWNPV_Cut                       64
#define B_ENDVERTEX_CHI2_B_ENDVERTEX_NDOF_Cut    10
#define B_IPCHI2_OWNPV_Cut                       16
#define B_DIRA_OWNPV_Cut                         0.9999

#define Negative_D_Daughter_PIDK_211_Cut         10
#define Positive_D_Daughter_PIDK_211_Cut         10
#define Positive_D_Daughter_PIDK_321_Cut         10
#define Negative_D_Daughter_PIDK_321_Cut         10

#define D_M_Window_Cut                           21

#define B_M_Window_Cut                           50

these are saved in /home/hep/uoh35620/stuff/analyse-n-tuple/cuts/thomas.low.dip.cuts.h

this is a version of /home/hep/uoh35620/stuff/analyse-n-tuple/cuts/thomas.low.mv.cuts.h where the D IP Chi^2 has been loosened, when it was a bit tighter the monte carlo efficiency was as follows 

Cut info:
0    tot lumi   : -5.00e+12 nb-1 +/- 5.00e+12 nb-1
0    tot cands  :   153263
1    evt bfr cut:    16662
2    D daughter :    13075  78.47% +/-   0.32%
3    bachelor   :     9759  74.64% +/-   0.38%
4    after D cut:     6700  68.65% +/-   0.47%
5    after B cut:     6134  91.55% +/-   0.34%
6    after PID  :     4300  70.10% +/-   0.58%
7    nPV        :     4300 100.00% +/-   0.00%
8    event num  :     4300 100.00% +/-   0.00%
9    D mass     :     4024  93.58% +/-   0.37%
9    B mass     :     3868  96.12% +/-   0.30%
     Overall Eff:           23.21% +/-   0.33%

analysis script

Run it with the g++root command defined HowToCompileRootMacros it took ~15 hours to run with 577/nb of data, so run it on heplnx112 not 108 as 108 is slow.

plots

raw plots can be found in /opt/ppd/lhcb/tbird/analysis/b2dkstar/* for mc and data. the name of the cuts used is specified in the KstarAnalysis file and the output file, both near the top.

-- ThomasBird - 2010-09-07

META FILEATTACHMENT attachment="b2dkstar-570nb-dm.png" attr="" comment="B2DKstar D mass plot with 577/nb" date="1283869372" name="b2dkstar-570nb-dm.png" path="b2dkstar-570nb-dm.png" size="10355" stream="b2dkstar-570nb-dm.png" tmpFilename="/usr/tmp/CGItemp10763" user="ThomasBird" version="1"
META FILEATTACHMENT attachment="b2dkstar-570nb-bm.png" attr="" comment="B2DKstar B mass plot with 577/nb" date="1283869434" name="b2dkstar-570nb-bm.png" path="b2dkstar-570nb-bm.png" size="13506" stream="b2dkstar-570nb-bm.png" tmpFilename="/usr/tmp/CGItemp10877" user="ThomasBird" version="1"
META FILEATTACHMENT attachment="KstarAnalysis.C" attr="" comment="The Kstar analysis script" date="1283869675" name="KstarAnalysis.C" path="KstarAnalysis.C" size="124651" stream="KstarAnalysis.C" tmpFilename="/usr/tmp/CGItemp10955" user="ThomasBird" version="1"

Revision 12010-09-07 - ThomasBird

 
META TOPICPARENT name="DataAnalysis"

B- to D0 (K pi) K*-

Current status

ntuple

ntuple is stored at /opt/ppd/lhcb/tbird/ntuples/B2DKstar/data/B2DKstar_str09.root

cuts

Using Almost exactly same cuts as B2Dpi, except cuts applied to daughters of the D were also applied to the daughters of the K* and a mess cut was applied to the K* too, with a window of 150 MeV.

The names were defined for the B2Dpi decay so are not as useful as they are for that decay 

#define Name_Of_Cuts  "thomas mod - low mv and dipchi2"

#define Negative_D_Daughter_PT_Cut               300
#define Positive_D_Daughter_PT_Cut               300
#define Negative_D_Daughter_MINIPCHI2_Cut        9
#define Positive_D_Daughter_MINIPCHI2_Cut        9
#define Negative_D_Daughter_P_Cut                2000
#define Positive_D_Daughter_P_Cut                2000
#define Negative_D_Daughter_TRACK_CHI2NDOF_Cut   8
#define Positive_D_Daughter_TRACK_CHI2NDOF_Cut   8

#define Bachelor_PT_Cut                          300
#define Bachelor_MINIPCHI2_Cut                   9
#define Bachelor_P_Cut                           2000
#define Bachelor_TRACK_CHI2NDOF_Cut              8
#define Bachelor_PIDK_Cut                        100000

#define D_FDCHI2_OWNPV_Cut                       100
#define Z_Dist_Cut                               -1
#define D_ENDVERTEX_CHI2_D_ENDVERTEX_NDOF_Cut    15
#define D_IPCHI2_OWNPV_Cut                       9
#define D_PT_Cut                                 2000

#define B_FDCHI2_OWNPV_Cut                       64
#define B_ENDVERTEX_CHI2_B_ENDVERTEX_NDOF_Cut    10
#define B_IPCHI2_OWNPV_Cut                       16
#define B_DIRA_OWNPV_Cut                         0.9999

#define Negative_D_Daughter_PIDK_211_Cut         10
#define Positive_D_Daughter_PIDK_211_Cut         10
#define Positive_D_Daughter_PIDK_321_Cut         10
#define Negative_D_Daughter_PIDK_321_Cut         10

#define D_M_Window_Cut                           21

#define B_M_Window_Cut                           50

these are saved in /home/hep/uoh35620/stuff/analyse-n-tuple/cuts/thomas.low.dip.cuts.h

this is a version of /home/hep/uoh35620/stuff/analyse-n-tuple/cuts/thomas.low.mv.cuts.h where the D IP Chi^2 has been loosened, when it was a bit tighter the monte carlo efficiency was as follows 

Cut info:
0    tot lumi   : -5.00e+12 nb-1 +/- 5.00e+12 nb-1
0    tot cands  :   153263
1    evt bfr cut:    16662
2    D daughter :    13075  78.47% +/-   0.32%
3    bachelor   :     9759  74.64% +/-   0.38%
4    after D cut:     6700  68.65% +/-   0.47%
5    after B cut:     6134  91.55% +/-   0.34%
6    after PID  :     4300  70.10% +/-   0.58%
7    nPV        :     4300 100.00% +/-   0.00%
8    event num  :     4300 100.00% +/-   0.00%
9    D mass     :     4024  93.58% +/-   0.37%
9    B mass     :     3868  96.12% +/-   0.30%
     Overall Eff:           23.21% +/-   0.33%

analysis script

Run it with the g++root command defined HowToCompileRootMacros it took ~15 hours to run with 577/nb of data, so run it on heplnx112 not 108 as 108 is slow.

plots

raw plots can be found in /opt/ppd/lhcb/tbird/analysis/b2dkstar/* for mc and data. the name of the cuts used is specified in the KstarAnalysis file and the output file, both near the top.

-- ThomasBird - 2010-09-07

META FILEATTACHMENT attachment="b2dkstar-570nb-dm.png" attr="" comment="B2DKstar D mass plot with 577/nb" date="1283869372" name="b2dkstar-570nb-dm.png" path="b2dkstar-570nb-dm.png" size="10355" stream="b2dkstar-570nb-dm.png" tmpFilename="/usr/tmp/CGItemp10763" user="ThomasBird" version="1"
META FILEATTACHMENT attachment="b2dkstar-570nb-bm.png" attr="" comment="B2DKstar B mass plot with 577/nb" date="1283869434" name="b2dkstar-570nb-bm.png" path="b2dkstar-570nb-bm.png" size="13506" stream="b2dkstar-570nb-bm.png" tmpFilename="/usr/tmp/CGItemp10877" user="ThomasBird" version="1"
META FILEATTACHMENT attachment="KstarAnalysis.C" attr="" comment="The Kstar analysis script" date="1283869675" name="KstarAnalysis.C" path="KstarAnalysis.C" size="124651" stream="KstarAnalysis.C" tmpFilename="/usr/tmp/CGItemp10955" user="ThomasBird" version="1"
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