The ALICE experiment at the LHC

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(1)The ALICE experiment at the LHC P. Crochet. To cite this version: P. Crochet. The ALICE experiment at the LHC. Heimholtz International Summer School On Dense Matter In Heavy Ion Collisions And Astrophysics, Aug 2006, Dubna, Russia. pp.1068. �in2p300106317�. HAL Id: in2p3-00106317 http://hal.in2p3.fr/in2p3-00106317 Submitted on 13 Oct 2006. 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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(23) . =² 1B3-A36ZA.?LM\458RM.?T.Q<*5A1B3NQ^BôNQ-AN$58\4Zvm,P35A5A3v-=581oN$T t?t Ä 3ÅVÌ ! <>.?- Ä tx36ÅVÌ! moRSLMLHNQLMLS. 5A1B3DZA3v^BNQ-8N$5ARS.?T.$<*5A1B3DUBRM¹3v-/3vTY5-A36ZA.?ToN$TB0v3DZ/58N$5836Zv) Ä .?-/3UB3658NQRSLMZ=NQP".?\45@5A1B3DCFEHGI+@JUB3583v058.?-6m Ri58Z.?^"3v-8N58RS.QT N$Z¼3vLML NQZRM5AZ=3^36065A3vU ^"3v-I<>.?-AwxNQTB063vZRST581B3h$NQ-/RS.?\BZ=^41XZ/RS0vZ 021oNQTBT43vLSZn0 N$T P"3 <>.?\4TBU RMTµ¯ Ã m Á± ) χ2 / ndf. 13.54 / 23. LWidth 0.008234 ± 0.001379. 35. GSigma. 30 25. 0.06662 ± 0.00140. M1. 3.133 ± 0.001. Area1. 6716 ± 100.4. M2. 240 220. 9.571 / 43. LWidth. 0.03015 ± 0.00953. GSigma. 0.09726 ± 0.01149. M1. 200. Area1. 3.727 ± 0.016. 180. Area2. 189.1 ± 32.3. 160. Cbkg. 3.112e+04 ± 1938. 20. χ2 / ndf. 140 120. 9.529 ± 0.006 67.32 ± 3.98. M2. 10.09 ± 0.02. Area2. 18.64 ± 2.18. M3. 10.43 ± 0.03. Area3. 10.2 ± 1.9. Cbkg. 1872 ± 274.2. J/Ψ. all contributions. Ψ‘. -4. BG from open charm. 10. BG from open beauty -5. BG from misidentified π ‘s. 10. uncorr. BG (like sign). Υ. -6. 10. 100. 15. Entries/(Events*GeV/c2). Entries/50 MeV/10^6 s. 3. ×10. Υ‘. Υ‘‘. 80 10. 10-7. 60 40. 5. 20 0 2. 2.5. 3. 3.5. 4 4.5 5 2 Mµµ (GeV/c ). 0 8. -8. 10. 8.5. 9. 9.5. 10 10.5 11 11.5 2 Mµµ (GeV/c ). 0. 2. 4. 6. 8. 10 12 Invariant Mass [GeV]. p RM?\B-/3Vl4)¼G»TYh$NQ-ARSNQTY5nwNQZ/ZZA^"3v065A-8N.Q<LM.wN$ZAZUBRSw]\B.?TµªLM36<5Ó«Ómo1BRSQ1wxNQZ/Z UBRMw¬\B.?Tµª>wxRMUBUBLS3 «m NQT4UUBRM3vLS36065A-A.?T ª-/RS?1Y52«mY3^"3v0583vUx58.VP3w3 NQZ/\B-A36UxRM5A1u581B3nCFEHGI+@J°UB3583v058.?-fRM5A1BRSTNw.?TY581 .Q<¬(WPP"3 NQwZµª35A-8NQ0583vU¸<>-A.?w ¯ Á± «Ó)¾G»T¸581B3LS3<5 NQTBU¸wxRMUBUBLS3Æ^BLS.Q5AZvm'5A1B3%TB.?Tq0v.?-/-A3vLSN$5836U PoN$02Q-A.?\BT4URSZZA\BP45A-8NQ05836U#<>-A.?w58143 58.$52NQL,ZA^"3v058-/\Bw N$ZAZA\4wxRMTB¬NV^36-/<>3v05@Z/\BP458-ANQ065ARS.?TR);3Q)5A1B3 ZI52N$5ARSZ/5ARS0vNQLH3v-/-A.?-n.Q<5A1B3 I<>\BLSL ·ZA^"3v065A-A\BwRMZ N$ZAZARM?TB36U 58.581B3V-A36wN$RSTBRMTBuZA^"3v058-A\4w .Q<*581B3VZA\4w .Q<*581B3D06.?-A-/3vLON583vUZ/.?\B-A063vZ6) ¡ ¦ ÈB~ G»TµN$P.?\5F5».XQ3 NQ-/ZD<>-/.?w T4.DmH143 N hXqRS.?T06.?LSLMRSZARM.?TBZ N$5F5A1B3·E F+ RSLSLr\BTBU4.?\BP45A3vUBLiX´.?^"3vT N¬TB3 N$TBU\BTBRM[\433v-8N]<>.Q-¼581433^BLS.Q-8N$5ARS.?T#.$<H581B3VD+@© ^B1oN$ZA3UBRSNQ?-8N$w Ri581\BT4^B-A360v3vU43vTY5836U [\oNQLMRM58N$58Rih?3NQT4UÎ[\oN$T5ARM58N$58Rih?3YNQRMTBZ]<>.?-581B3ZI58\BU4X°.Q< 5A1B3DV( N$5uLSNQ-A?3x583vw^"3v-8N58\B-/3NQTBU Z/wNQLML PoNQ-/XQ.?TBRM0]021B36wxRM0 NQLr^.$583vTY5ARONQL¶)n²=143¬TB.h?36LM58RM3vZ PB-A.?\4?1Y5FPYX 5A1BRSZnTB3 36TB3v-/QX -A3vQRSw3]NQ-/3 RO«581B3 NQ0v063vZ/Z5A.ÈN´-A36?RSw3.Q<nh?36-/XZAwxNQLML=k /.?-/Q3vTq h$NQLM\B3vZ·021oN$-8NQ0583v-/RSÏ63vUPYXNZ8N58\B-AN$58RM.?T .Q<@LS.Ðw.?w3vTY58\Bw ?LS\B.QTBZvmrRSRO« 581B3LONQ-/?3u5836wx^"3v-AN$58\B-/3<>.Q-D14RS021µ5A1B3021oNQ-8N$065836-ARMZ/58RM0vZV.Q<@5A1B3 ZIXZI5836w ?350vLS.QZA3v-5A.Î5A1B.?ZA3%.Q<¬NQTRMUB3 N$LYNQZvm'RSRSRO«58143%Z/wN$LSLFPoN$-/X?.QTBRS0%021B3vwRS0vNQL^".Q5836T5ARONQL 1BRM021P"3v06.?wx36ZxZ/RSwRSLSNQ-V5A.%5A1oN$5.Q<n581B33 N$-ALMX°g TBRih?36-AZA3ÆNQTBUÎRMh4«58143ÆNQP4\BTBUoNQTY5x^B-A.UB\B058RM.?T -AN$583·.Q<1oNQ-/U^B-A.0v36ZAZA36Z1BRM0210 NQT%P3u\4ZA3vUymr<>.?- 581B3u®o-/Z/558RMwx3$mHNQZD1BRM?1´Z/58N$58RMZ/58RM0vZ^B-/.?P"3vZ.Q< 5A1B3¬w3vUBRM\Bw )=Cn<5836-'w.?-A3D581oN$T tXQ3 NQ-/ZF.Q<WRMTY583vT4ZARMhQ3¬UB3583v058.?-'` D©ÐN$TBU 0v.QTBZ/5A-A\B058RS.QTm5A1B3 C'E GI+@J3Ó^36-ARSw3vTY5nRSZ=06\B-A-/3vTY58LiXRSTRi58Z=RST4Z/52N$LSLON58RS.QT^B1oN$ZA3Q) z £ ¤ ¥ £ } G5RMZ·Nµ^BLM3 NQZ/\B-A358.µNQ02TB.LS36UB?3581B3.?-A?NQTBRSÏ63v-/Z.$<'58143 Z/021B..QL<>.Q-·5A1B3vRM-·RSTYhRM52N58RS.QTNQTBU <>.?-^4-A.hRSUBRMTBÎNhQ3v-IXKTBRS0633vTYhRS-A.QTBwx36TY5<>.?-Z/5ARSw¬\BLSN$58RMTB°UBRMZA06\BZAZ/RS.?TBZ6)G?-AN$583<>\BLSLiX581oNQT4 C)oC'TBUB-/.?TBRM0D<>.Q-=0 NQ-/36<>\BLMLMXx-A3 N$UBRSTBu5A1B3DwNQT\BZ/0v-/RS^45v).

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