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Tracking

  • (left) Tracking efficiency and fake rate in |eta| < 1 extracted from a sample of central (b=2 fm) HIJING events produced with quenching effects turned off and above 10 GeV, from negative pions embeded in central HIJING events. The ATLAS track reconstruction algorithm xKalman was used to reconstruct the tracks. (right, top). Tracking efficiency as a function of pseudo-rapidity for tracks with 3 < pT < 8 GeV extracted from the same central sample of HIJING events. (right, bottom) Fake rate as function of pseudo-rapidity for the same tracks as in the top panel.

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  • Transverse momentum resolution around mid-rapidity (|eta| < 1).
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  • Reconstruction of the invariant yield of charged particles in |eta| < 0.5 for a sample of central HIJING events with quenching effects turned off (b=2 fm with dNch/dh = 2650). Red circles show the extracted yield and the histogram corresponds to the generated input distribution.
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  • (left) Distribution of vertex x coordinate residual reconstructed with SingleAdaptive method using tracks produced with xKalman tracking algorithm from a sample of minimum biased HIJING events produced with quenching effect turned off. (middle) Distribution of z coordinate residuals for the same reconstructed vertices as in the left figure. (right) The resolution of the vertex finding algorithm as a function of the number of tracks used to construct the vertex averaged over events with different centrality from HIJING minimum bias sample.
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Major updates:
-- AdamTrzupek - 25-Nov-2009

Responsible: AdamTrzupek
Last reviewed by: Never reviewed

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JPEGjpg PtResolution1D10.jpg r1 manage 65.9 K 2009-11-25 - 05:04 AdamTrzupek  
PDFpdf PtResolution1D10.pdf r1 manage 22.9 K 2009-11-25 - 05:04 AdamTrzupek  
JPEGjpg crossSectionCent0_11EtaL00EtaH05.jpg r1 manage 93.5 K 2009-11-25 - 05:11 AdamTrzupek  
PDFpdf crossSectionCent0_11EtaL00EtaH05.pdf r1 manage 26.0 K 2009-11-25 - 05:12 AdamTrzupek  
JPEGjpg efficiencyFakeVsEta.jpg r1 manage 85.3 K 2009-11-25 - 04:57 AdamTrzupek  
PDFpdf efficiencyFakeVsEta.pdf r1 manage 23.0 K 2009-11-25 - 04:58 AdamTrzupek  
JPEGjpg trackEffHijingHighCut_Embed.jpg r1 manage 90.0 K 2009-11-25 - 04:57 AdamTrzupek  
PDFpdf trackEffHijingHighCut_Embed.pdf r1 manage 24.7 K 2009-11-25 - 04:57 AdamTrzupek  
JPEGjpg vertexKalmanSingleMinBias.jpg r1 manage 117.9 K 2009-11-25 - 05:15 AdamTrzupek  
PDFpdf vertexKalmanSingleMinBias.pdf r1 manage 21.5 K 2009-11-25 - 05:15 AdamTrzupek  
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Topic revision: r4 - 2010-12-06 - PatrickJussel
 
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