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Object oriented reconstruction and particle identification in the ATLAS calorimeter

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(1)Object oriented reconstruction and particle identification in the ATLAS calorimeter B. Caron, J. Collot, E. Frank, Anupam Gupta, P. Loch, H. Ma, F. Merritt, J.P. Meyer, S. Rajagopalan, J. Schwindling, et al.. To cite this version: B. Caron, J. Collot, E. Frank, Anupam Gupta, P. Loch, et al.. Object oriented reconstruction and particle identification in the ATLAS calorimeter. CHEP’01 : Computing in High Energy Physics and Nuclear Physics, Sep 2001, Beijing, China. pp.182-185. �in2p3-00011245�. HAL Id: in2p3-00011245 http://hal.in2p3.fr/in2p3-00011245 Submitted on 6 Mar 2002. HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers.. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés..

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(9) Simulation Detector Response Electronics Calib. T. Hits Raw Channels,Digits Digits Raw Channels Raw Channels,Digits. Event Filter/Builder Cell Reconstruction. Hits. Hit Converter. D Digits. Raw Channels,Digits Raw Channels,Digits Cells. Cluster Reconstruction. Objectivity, ROOT, Zebra. Hits. S. TestBeam Converter Zebra. Cells,Towers. 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(11) ’. 200 175. Entries 21.60 Constant Mean Sigma. 1457 / 10 156.5 100.1 1.074. 5.849 0.2400E-01 0.3475E-01. 150. no of events. no of events. Ž. 125. ’. •. 45. •. 40. Entries Constant Mean Sigma. 407 9.576 / 10 36.78 99.84 1.179. 3.116 0.3029E-01 0.9126E-01. 35 30. . 25. 100. . 20. Ž. 75. 15. . 50. ‘. 10. 25. ‘. 5. ‘. “ ” YoUxdaZFIm&–Záum>g!HKJQwVnFIaQgVnm>{joUxdxd@ˆHdnHKJ‰™EKI †‡FnHd‰ _ VnhQm!JQE†‡HdF‚iƒ „T„N –˜—š™4îO¥K¥‚`,m!ªNZ†‡HKFSTHqy 0. 90. 95. 100. ” m“ [GeV]. ‘. 105. 110. 0. 90. inv. 95. 100. 105. 110. minv [GeV]. STaZ‰‚oUJZHzwoUVŽr¨„˜SUm!†óV[‘EKJQ{§hQoUxdhÊSTaZ‰‚oTJZHdnopVŽr¦„‡FIoUxdhdVɑ EqVVnhQm#fj,CB kmlR› œX|žxmŸ ` S }Kr@swTx=vt|u‰€=sUtXwTx. }~oUVnhZoTJÏVnhZm_ VIhZm!JQEʆ‡F[EG‰‚m>yRHdFn\VIhZm™FnmOgHdJQŽVIFnaDgÉVnoTHKJ¦HG†@‰‚oTIwoTJZx ` S bZFIHcgm>m>{Z·ˆ^r+STH^HKbZoTJZxHqKm>F·EKSUS g!EKSUHdFnoT‰‚mVIm!F@gm!STSŠ!NcoTJQgSTaQ{coTJZxVnhQHdnmHK†VnhQm†‡HdFny@EGF[{g>EGSTHKFIoU‰‚mVIm!FOBYQHKFmOEKg[h g!m!STSMVnhZm&{cm>bDHzwoUVnmO{VIFIEKJQwñ Km>FInm·m!JZm>FnxdKr ` S EKSUHdJZx‚yopVIh)opV[£EGJQ{ÊrgHK‰‚bHKJZm>JzVIoŠaQnm>{ VnH gHK‰‚bZaZVnm·VnhQm#xKSTHKˆQEKSš‰‚oTIwoTJZx¡` S VnbZhQFIFnHKHdxdaZFnmOxKnhVIVnhZH‚mm£cEdnbQnEKaZJQ‰‚{™bcVIVnhZoTHKm&J)EGSTHKxK†HKˆQFIoUEGVnSŠhZEG‰™JDgRm>m!{ʉ‚VIbZHGSTV[HqEGrKS‹m>VI{ FIEKwJQH‚nEKKRm!F[VInH‚m&EK‰STnHdH‰‚hQm!EGJzJQVn{ZaZSU‰ m,FnymOgoUVnHdhZJQoTŽJ)VIFnVIaDhZgÉm<VnmOm>{Km!HdJzˆcVOvŽBm>g}¦VI@HdFnw\ÊaDg[oŠh EKoTJ  oŠwHdSTEGVnm>£{ ¢zLN „NdvŽmV[!NMgSTaQwVnm!F[JQHGVEdg!gm>bcVnmO{)EKvŽmVI>NMEGJQ{‰aZHKJQ>Bk)m!VnhZHc{ZVnH§{Zm>EGSžyopVIh+STHqy%m>JZm!FIxKr gm>SUSŠ †‡HKaQJQ{ʈDHKVnh)oTJQwoŠ{cm&EGJD{ HdacVInoŠ{cm&HG†0gSTaQwVnm!F[EGFIm&EGSŠwHˆm!oTJZx™oUJ^dm>wVnoTxdEqVIm>{Ê{caZm·VIH‚VnhZm&oT‰‚bQEKgVHG† naQg[hÊg!m!STST@aQbDHdJ VIhZm&‰‚oTInoUJZCx `SìFIm>nHKSTacVIoUHdJ‹B kmlNk zŒ¤u‰t|žspXr.¥W¦=rAx]t\§

(12) s¤tXwTx @hZm·bQEKFwVIoTg!SUm·oŠ{cm!JzVnoND g>EqVnoTHKJÊHKˆZvŽm>gÉVoŠ †‡HKFIm>nm!m>J§VIHSŠEqVIm!F@oTJQgSTaQ{cm#EKJ oT‰‚bZSUm>‰‚m!JzVIEGVnoTHKJHG† E\^oTJZm!‰™EGVnoŠg. oTJdVIm!Fn†˜EKg!mEGSTHKJZx<yopVIhVnhQmbHKoTJdVIm!F[VIH#VIhZmbQEKFwVIoTg!SUm,g!EKJQ{coŠ{ZEqVImHKˆcvŽmOgÉVOB e HdoUJzVIm!F[ VnHEGJHqdm!F[EGSTSZbZFIHKˆQEGñ ˆZoTSUoUVŽrHKˆcvŽmOgÉVoАEKSTnH&bZSŠEGJZJZmO{šB0@hZmbZFIHKˆDEGˆZoTSUoUVŽr<HdˆcvŽm>gV‰™EŸrg!HKJzVIEKoUJ™bQFnHdˆQEGˆZoTSTopVIoUmO!Ndhzr^bHGVIhZm>nm>>NdEKJQ{ ¨ EKxd@EGJQ{ y HKaZSŠ{ EKSTnH‚{cWm QJQm,‰aZSUVnoTbZSUoŠg!EGVnoTKm&EGJD{ Ed{Z{coUVnoTKm·HKbm!F[EqVIHKF[VIH™‰m>FnxdmVIhZm&bZFIHKˆQEKˆZoTSUoUVnoTm>>B_ bZFIHGVIHGVŽr^bDm™oT‰‚bZSTm!‰‚m!JzVIEGVnoTHKJÑoŠaZJQ{cm>Fny@EŸr+VIH)VnmOŽVVnhZm bZFnHdbDHzwmO{ìoT{Zm>EK>B+@hZmÊEGoT‰ oŠ&VIH¨m>Km!JzVIaQEGSTSUr m£^VIm!JQ{+VnhZoŠ·‰‚mVnhQH^{ìEd,E xKm>JZm!F[EGS wVnF[EqVnm>xKrʆ‡HKF&bDEGFnVnoŠgSTmoŠ{cm!JzVIo Dg>EqVIoUHdJ+†‡HKF·m>xdEG‰‚‰™E HKˆcvŽmOgÉVI·EKSUHdJZx yoUVnh)V[EGa‹NzvŽmV[!NMˆcñ½‰‚m>nHKJQ>N‰<aZHdJQEKJQ{HGVIhZm!F,bQEKFwVIoTg!SUmO!B,@hZmg>EGJQ{coŠ{ZEGVnm>whQHKaZSŠ{)bZFIHq^oT{cmEKg!g!m>IVIH VnhQm&oUJc†‡HdFn‰™EGVnoTHKJ§FIm>ðzaZoTFIm>{§†‡HK©F QJQEKSgSŠEKIno Dg>EqVIoUHdJ§HG†žVnhZm&bDEGFnVnoŠgSTmKB 2ù;ÿ &[ÿ‹æZÿäêM6ÿ %  Wî  ›TB ªaQEGFIFIoUmdNôI@hZm<`·_Œ›’@eFIHGvŽm>gVIõQNZC jXe¢ –K¥K¥ZîdNzA m>o vŽoTJZxQNDCRhQoUJQEQND–G¥d¥ZîdB  ‰–  @hZam MXRA@u_÷t^rcŽVIm!‰N «¬@¬®­©¯±°@°U²A²@²³´µ@¶"·[¸U¹º®´©·[¸|«L°®»¼½¶ ¸U°®¾@¹U¿º»À‰«¬UÁTÂAÃ@°®¾A¹¿º@»‰ÁT»L³|´Ä·Å«A¬UÁ]  —  u ,·áZ_OJ ˆcvŽmOgɌV FnoTm!JzVIm>{ʛEGVIE™_JDEGSTr^noŠYZF[EG‰‚m!y HKFI\MN «¬@¬A­Ä¯±°@°º¶A¶®¬Ä·[¸¹ºA´©·9¸« °  U¤  u&BÈ`B,C EqVnVnm>SUS N[ô ˆcvŽmOgÉV)›EGVIEùk+EGJDEGxKm>‰‚m!JzV>Æá ˆcvŽm>g.V FnoTm!JzVnmO{ EKJQ{%X0£^Vnm>JQ{cm>{%um>STEGVnoTHKJQEKS ›,EqVIEKˆQEKnm#t^rcŽVIm!‰™IõZNZ_{Q{coTnHKJZñ }Ïm>nSUm>rKNšî HHZîdB    k|BtzV[EŸ^FnoŠEGJQEK\KHda‹NôÉCRHKJ QxdaZF[EqVnoTHKJ)‰™EKJQEGxdm!‰‚m!JzVoTJì_0f_t+UH V™oTJZmnHG†óVŽy@EGFIm>õQNšC jXe¢ –K¥K¥ZîdN A m!o vŽoUJQxQNCRhZoTJQEQNQ–G¥K¥QîKB  J }÷B XB,CRSTm!SŠEGJQ{%EGJD{ XB `BtzVIm!FIJ‹NôIt^oTxKJDEGS&bZFIHcgm>InoUJZxùgHdJQnoT{cm>FIEGVnoTHKJQ§†‡HKF)SToŠðdaQoT{%oTHKJZoTœ>EGVnoTHKJ g!EKSUHdFnoT‰‚mVIm!F[oTJÑEÊhZoTxKhìFIEGVnm‚m!J^^oTFnHdJZ‰‚m!JzVIõQmN ÇÈ ÉvÊNË[ÌÍ*ÎWÏÐўÍÈÒCËvÏ ÑžÐÓÌÏ]Ô ÕOËvÑ×Ö Ø|ÔÐÙ×ϘÚÛÖ@܉ÐÙXÉWÐ ÝËWÐvË[ÌͱÉ[Ö^NQ_÷—d— MʄŽî HHG¤^‘R®¤ JA?Ÿñ A¤ HA?cB.

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