Difference: 2011feb03 (1 vs. 6)

Revision 6
15 Apr 2011 - Main.RobertoPerezBenito
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META TOPICPARENT name="MeetingMinutes"

Group Meeting:

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  • To do: Try the kinematical fit using e+ pi- pi0 and pi+ e- pi0.


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Home of Mainz
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Home of Mainz Meeting Minutes
 
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-- RobertoPerezBenito - 05 Apr 2011
 
META FILEATTACHMENT attr="h" comment="Mamen Talk about e+e-pi0 a la Lansberg" date="1297088052" name="EmcStudiesXX12110.pdf" path="EmcStudiesXX12110.pdf" size="3824982" user="MariaCarmenMoraEspi" version="1.1"
META FILEATTACHMENT attr="h" comment="pbarp->e+e- study with PANDAroot" date="1302008897" name="2011.02.03_DKhaneft.pdf" path="2011.02.03_DKhaneft.pdf" size="2083203" user="RobertoPerezBenito" version="1.1"
Revision 5
05 Apr 2011 - Main.RobertoPerezBenito
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META TOPICPARENT name="MeetingMinutes"

Group Meeting:

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  • Invariant mass plot: Does it make sense the peak around 4GeV? Is that with or without the cuts? What are the entries at very low W?

  • Background: missidentification? "Electronic" noise?
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  Frank Maas about e-mail from Stefano Spataro

  • A relation about how pid works in panda root is described in this e-mail:
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  • To do: Try the kinematical fit using e+ pi- pi0 and pi+ e- pi0.
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Home of Mainz

-- RobertoPerezBenito - 05 Apr 2011
 
META FILEATTACHMENT attr="h" comment="Mamen Talk about e+e-pi0 a la Lansberg" date="1297088052" name="EmcStudiesXX12110.pdf" path="EmcStudiesXX12110.pdf" size="3824982" user="MariaCarmenMoraEspi" version="1.1"
META FILEATTACHMENT attr="h" comment="pbarp->e+e- study with PANDAroot" date="1302008897" name="2011.02.03_DKhaneft.pdf" path="2011.02.03_DKhaneft.pdf" size="2083203" user="RobertoPerezBenito" version="1.1"
Revision 4
05 Apr 2011 - Main.RobertoPerezBenito
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META TOPICPARENT name="MeetingMinutes"

Group Meeting:

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Dmitry Khaneft
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Dmitry Khaneft *pbarp->e+e- study with PANDAroot
 

  • Show slides of first simulation/analysis of pbarp->e+e- with PandaRoot. Anti-p_Momentum=10GeV/c; G_e/G_m=0

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  • To do: Try the kinematical fit using e+ pi- pi0 and pi+ e- pi0.

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META FILEATTACHMENT attr="h" comment="Mamen Talk about e+e-pi0 a la Lansberg" date="1297088052" name="EmcStudiesXX12110.pdf" path="EmcStudiesXX12110.pdf" size="3824982" user="MariaCarmenMoraEspi" version="1.1"
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META FILEATTACHMENT attr="h" comment="pbarp->e+e- study with PANDAroot" date="1302008897" name="2011.02.03_DKhaneft.pdf" path="2011.02.03_DKhaneft.pdf" size="2083203" user="RobertoPerezBenito" version="1.1"
Revision 3
05 Apr 2011 - Main.RobertoPerezBenito
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META TOPICPARENT name="MeetingMinutes"

Group Meeting:

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Frank Maas about e-mail from Stefano Spataro
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  • A relation about how pid works in panda root is described in that e-mail. (Can somebody re-send it, please)
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  • A relation about how pid works in panda root is described in this e-mail:
 
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Mamen Mora
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Am 15.12.2010 um 11:17 Stefano Spataro:

Hi,

at present there are several detectors providing a bayesian pdf in a separate way. They are: MVD, STT, DISC, DIRC, using of course de/dx and Cherenkov angles. MVD needs an update, but this effects only very low momentum particles. No TPC pid is available because nobody from TPC group has ever implemented the energy loss calculation.

For EMC, Ronald is preparing pdfs using bayes, only with the e/p information. After setting it, he will try (hopefully) to add shower shape variables. About EMC MVA, this includes e/p and also a list of shower properties http://panda-wiki.gsi.de/pub/Computing/PandaRootPapers/Panda_doc.pdf For MDT, there is a had cut algorithms, using the amount of iron crossed by the particle as a function of the particle momentum at the entrance point in MDT.

They are well separated, but bayes is modular, and it is possible to merge different probabilities to have a global value. Of course this is analysis dependent, and one should also calculate particle flux for the desired channel, but I suppose fluxes were calculated in the other framework than one could use exactly what already done (at least, particle physics should not depend on the software, hopefully). In MVA one can also add STT+Cherenkov informations, but this has to be discussed in details with Mohammad Babai who is the expert.

Hopefully Ihgave you all the relevant details about the current PID situation, do not hesitate to ask me further questions.

Best wishes to everybody.


Mamen Mora * Simulation ppbar->e+e-pi0 a la Lansbergf
 

  • Showed plots in relation with the simulation/analysis of pbarp->e+e-pi0 a là Lansberg.
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  • To do: Try the kinematical fit using e+ pi- pi0 and pi+ e- pi0.

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Talks:

* EmcStudiesXX12110.pdf: Mamen Talk about e+e-pi0 a la Lansberg

-- MariaCarmenMoraEspi - 07 Feb 2011
 

META FILEATTACHMENT attr="h" comment="Mamen Talk about e+e-pi0 a la Lansberg" date="1297088052" name="EmcStudiesXX12110.pdf" path="EmcStudiesXX12110.pdf" size="3824982" user="MariaCarmenMoraEspi" version="1.1"
Revision 2
08 Feb 2011 - Main.RobertoPerezBenito
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META TOPICPARENT name="MeetingMinutes"

Group Meeting:

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  -- MariaCarmenMoraEspi - 07 Feb 2011

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META FILEATTACHMENT attr="" comment="Mamen Talk about e+e-pi0 a la Lansberg" date="1297088052" name="EmcStudiesXX12110.pdf" path="EmcStudiesXX12110.pdf" size="3824982" user="MariaCarmenMoraEspi" version="1.1"
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META FILEATTACHMENT attr="h" comment="Mamen Talk about e+e-pi0 a la Lansberg" date="1297088052" name="EmcStudiesXX12110.pdf" path="EmcStudiesXX12110.pdf" size="3824982" user="MariaCarmenMoraEspi" version="1.1"
 
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