Difference: Sim09Differences (1 vs. 2)

Revision 22019-06-27 - SilviaBorghi

Line: 1 to 1
 
META TOPICPARENT name="LHCbSimulation"

Differences between Sim09 versions

Below is a list of all Sim09 versions, quickly describing new features and known issues. Fixes to problems of previous versions are not explicitly listed

Changed:
<
<

Sim09g

>
>

Sim09g

 
  • Only bug-fixes

Known issues

  • None
Changed:
<
<

Sim09f

>
>

Sim09f

 
  • First release for 2018
  • Fix for angular model for $\Lbz \rightarrow \Lz\lepp\lepm$
  • Fix for BeautyTomuCharmTo3h to select oscillated particles
Line: 17 to 17
 
  • Underlying event multiplicity due to handling of wide resonances, seehttps://indico.cern.ch/event/787606/contributions/3272825/attachments/1830771/2998119/Sim09c_vs_def.pdf
  • 2017+2018: Incorrect ECAL threshold used (same as 2016 data)
Changed:
<
<

Sim09e

>
>

Sim09e

 

Known issues

  • Underlying event multiplicity due to handling of wide resonances, seehttps://indico.cern.ch/event/787606/contributions/3272825/attachments/1830771/2998119/Sim09c_vs_def.pdf
  • 2017: Incorrect ECAL threshold used (same as 2016 data)
Changed:
<
<

Sim09d

>
>

Sim09d

 
  • Updated particle properties (when Pythia called by EvtGen), for decays to partons
  • Resonance from Pythia with non-zero width
  • Modified model for $B_c^-\rightarrow\Dstz\mum\antinumu$

Known issues

  • Underlying event multiplicity due to handling of wide resonances, seehttps://indico.cern.ch/event/787606/contributions/3272825/attachments/1830771/2998119/Sim09c_vs_def.pdf
Changed:
<
<

Sim09c

>
>

Sim09c

 
  • Set correctly incorrect ECAL threshold
  • New major DecFiles version
  • Fixes to EvtDDalitz (for \Dp)
Line: 39 to 39
 

Known issues

  • None
Changed:
<
<

Sim09b

>
>

Sim09b

 
  • First release for 2016
  • Fixed 2nd metal layer handling
  • Updated $\tau$ handling with Tauola

Known issues

  • 2016: L0 ECAL calibration correct (but incorrect in data)
Changed:
<
<

Sim09a

>
>

Sim09a

 
  • Generators: * 2015: lower tracking $\epsilon$ due to 2nd metal layer problem * EvtGen updated to PDG2014 particle properties

Revision 12019-06-24 - DominikMueller

Line: 1 to 1
Added:
>
>
META TOPICPARENT name="LHCbSimulation"

Differences between Sim09 versions

Below is a list of all Sim09 versions, quickly describing new features and known issues. Fixes to problems of previous versions are not explicitly listed

Sim09g

  • Only bug-fixes

Known issues

  • None

Sim09f

  • First release for 2018
  • Fix for angular model for $\Lbz \rightarrow \Lz\lepp\lepm$
  • Fix for BeautyTomuCharmTo3h to select oscillated particles

Known issues

  • Underlying event multiplicity due to handling of wide resonances, seehttps://indico.cern.ch/event/787606/contributions/3272825/attachments/1830771/2998119/Sim09c_vs_def.pdf
  • 2017+2018: Incorrect ECAL threshold used (same as 2016 data)

Sim09e

Known issues

  • Underlying event multiplicity due to handling of wide resonances, seehttps://indico.cern.ch/event/787606/contributions/3272825/attachments/1830771/2998119/Sim09c_vs_def.pdf
  • 2017: Incorrect ECAL threshold used (same as 2016 data)

Sim09d

  • Updated particle properties (when Pythia called by EvtGen), for decays to partons
  • Resonance from Pythia with non-zero width
  • Modified model for $B_c^-\rightarrow\Dstz\mum\antinumu$

Known issues

  • Underlying event multiplicity due to handling of wide resonances, seehttps://indico.cern.ch/event/787606/contributions/3272825/attachments/1830771/2998119/Sim09c_vs_def.pdf

Sim09c

Known issues

  • None

Sim09b

  • First release for 2016
  • Fixed 2nd metal layer handling
  • Updated $\tau$ handling with Tauola

Known issues

  • 2016: L0 ECAL calibration correct (but incorrect in data)

Sim09a

  • Generators: * 2015: lower tracking $\epsilon$ due to 2nd metal layer problem * EvtGen updated to PDG2014 particle properties
  • Geant4 9.6, no significant differences observed
  • VELO: error parameterisation and 2nd metal layer parameterisation

Known issues

  • 2015: lower tracking efficiency due to 2nd metal layer problem

-- DominikMueller - 2019-06-24

 
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