* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.8 2001/03/16 15:32:06 morsch
-Corrections of overlap with beam shield and dipole (A. de Falco)
+/* $Id$ */
-Revision 1.7 2001/03/14 17:22:15 pcrochet
-Geometry of the trigger chambers : a vertical gap of has been introduced around x=0 according fig.3.27 of the TDR (P.Dupieux)
+#include <TMath.h>
+#include "AliMUONConstants.h"
-Revision 1.6 2001/01/30 12:19:39 morsch
-Update chamber positions (AdTDR version update 4/12/2000).
+ClassImp(AliMUONConstants)
-Revision 1.5 2000/10/18 13:26:10 morsch
-New z-positions of chambers after Erice
+Int_t AliMUONConstants::fgNCh = 14;
+Int_t AliMUONConstants::fgNTrackingCh = 10;
+Int_t AliMUONConstants::fgNTriggerCh = 4;
+Int_t AliMUONConstants::fgNTriggerCircuit = 234;
+Int_t AliMUONConstants::fgNDetElem = 228;
-Revision 1.4 2000/10/06 09:09:56 morsch
-Outer radius of chambers adjusted to accomodate slat chambers (to be checked and updated).
-Revision 1.3 2000/10/02 16:58:29 egangler
-Cleaning of the code :
--> coding conventions
--> void Streamers
--> some useless includes removed or replaced by "class" statement
-Revision 1.2 2000/06/27 09:46:57 morsch
-kMAXZOOM global constant now in AliMUONConstants
+Float_t AliMUONConstants::fgDefaultChamberZ[14] =
+ {-526.16, -545.24, -676.4, -695.4, // St12
+ -967.5, -998.5, -1276.5, -1307.5, -1406.6, -1437.6,// updated 08/05, EDMS id 335328 (A. Tournaire)
+ -1603.5, -1620.5, -1703.5, -1720.5}; // M1 & M2
-Revision 1.1 2000/06/26 14:02:38 morsch
-Add class AliMUONConstants with MUON specific constants using static memeber data and access methods.
+Float_t AliMUONConstants::fgDefaultRatioTriggerChamber[4] =
+{1., 1.01060, 1.06236, 1.07296};
-*/
-#include "AliMUONConstants.h"
+Float_t AliMUONConstants::fgSt345inclination = 0.794; // in degrees, rotation axis is X axis
+Float_t AliMUONConstants::fgDzCh = 15.5/2.;
+Float_t AliMUONConstants::fgDzSlat = 8.5/2.;
-ClassImp(AliMUONConstants)
+Float_t AliMUONConstants::fgSqrtKx3 = 0.7131;
+Float_t AliMUONConstants::fgSqrtKy3 = 0.7642;
-const Int_t AliMUONConstants::fgNCh = 14;
-Int_t AliMUONConstants::fgNTrackingCh = 10;
-Int_t AliMUONConstants::fgNTriggerCh = 4;
-Int_t AliMUONConstants::fgNTriggerCircuit = 234;
-Float_t AliMUONConstants::fgDefaultChamberZ[14] =
-{533.5, 546.5, 678.5, 693.5, 964.0, 986.0, 1251.5, 1278.5, 1416.5, 1443.5,
- 1610, 1625., 1710., 1725.};
+Float_t AliMUONConstants::fgSqrtKx3St1 = 0.7000;
+Float_t AliMUONConstants::fgSqrtKy3St1 = 0.7550;
+
+Float_t AliMUONConstants::fgChargeCorrel = 0.11;
+Float_t AliMUONConstants::fgChargeCorrelSt1 = 1.0; //???
+Float_t AliMUONConstants::fgPitch = 0.25;
+Float_t AliMUONConstants::fgPitchSt1 = 0.21;
+
+// From Alain TOURNAIRE
+// ALICE / ALICE Engineering baseline / Dimuonspectrometer (DIS) v7-1
+// EDMS Id 335328 for "search in EDMS
+// These are the diameter (innner and ounner) values of the active surface
+Float_t AliMUONConstants::fgDmin[7] = { 36.4, 46.2, 63.0, 79.0, 79.0, 99.0, 100.0};
+Float_t AliMUONConstants::fgDmax[7] = { 176.6, 229.0, 308.84, 418.2, 522.0, 850.0, 900.0};
+
+Int_t AliMUONConstants::fgMaxZoom = 20;
-Float_t AliMUONConstants::fgDmin[7] = { 36.4, 46.2, 66.0, 80., 80., 100., 100.};
-Float_t AliMUONConstants::fgDmax[7] = {183., 245., 395., 560., 563., 850., 900.};
-Int_t AliMUONConstants::fgMaxZoom = 20;
+//______________________________________________________________________________
+Int_t AliMUONConstants::ChamberNumber(Float_t z)
+{
+ // return chamber number according z position of hit. Should be taken from geometry ?
+
+ Float_t dMaxChamber = DzSlat() + DzCh() + 0.25; // cm st 3 &4 & 5
+ if ( z > (DefaultChamberZ(4)+50.)) dMaxChamber = 7.; // cm stations 1 & 2
+ Int_t iChamber;
+ for (iChamber = 0; iChamber < 10; iChamber++) {
+
+ if (TMath::Abs(z-DefaultChamberZ(iChamber)) < dMaxChamber) {
+ return iChamber;
+ }
+ }
+ return -1;
+}