Charmed Strange Mesons: pp->DsD*s0(2317)


Albrecht Gillitzer, Jülich


Klaus Götzen, Diana Schumacher (Frankfurt)

Analysis Details

  • Exclusive reconstruction of the pbar p -> Ds Ds0(2317) (might be an efficiency problem)
  • Inclusive reconstruction of the recoiling Ds
  • Determine the production cross section of this reaction by performing an energy scan in the threshold region (real data only!)
  • Determine the width of Ds0(2317) from the shape of the excitation function

  • Target of physics booklet analysis
    • reconstruct signal events in either way given above and determine efficiency
    • determine background level with DPM events (maybe chosen explicit bkg channels...)
    • assume particular signal cross section for signal/bkg
    • simulate the measurement of excitation function (appropriately mix constant bkg with expected number of signals and fit the signal)
    • determine, how much data taking needed to exctract width with 3 σ significance

Decay Modes

D*s0(2317) -> Ds π0

Ds -> Φ π+ (+c.c.)

Φ -> K+ K-

π0 -> γ γ

Background Channels

  • DPM
  • non-resonant pbar p -> DsDsπ0


Topic attachments
I Attachment Action Size Date Who Comment
AnalysisNote_pp_DsDs0.pdfpdf AnalysisNote_pp_DsDs0.pdf manage 1570.7 K 19 Sep 2008 - 15:59 KlausGoetzen Note on DsJ Ds Analysis
DsJAnalysis_GSI0709_v2.pdfpdf DsJAnalysis_GSI0709_v2.pdf manage 370.7 K 30 Jan 2008 - 14:18 KlausGoetzen PANDA Collab meeting Sep 07
DsJAnalysis_GSI0803.pdfpdf DsJAnalysis_GSI0803.pdf manage 1167.3 K 05 Mar 2008 - 13:28 KlausGoetzen Status DsDs0 and phi phi Mar 08 Collaboration meeting (pdf)
Evo_Goetzen_080603.pdfpdf Evo_Goetzen_080603.pdf manage 1094.6 K 03 Jun 2008 - 12:28 KlausGoetzen Ds Ds0st and phi phi Analysis 03.06.08
KG13-070702_GoetzenDubna.pdfpdf KG13-070702_GoetzenDubna.pdf manage 535.9 K 20 Sep 2007 - 22:42 BertramKopf PANDA Collaboration Meeting, Dubna (04.07.2007)
Topic revision: r6 - 19 Sep 2008, KlausGoetzen
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