Forward kinematic ranges to entries only if not set by user.
[u/mrichter/AliRoot.git] / STRUCT / ABSOConst.h
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15a7563b 1#ifndef ABSOCONST_H
2#define ABSOCONST_H
3
4/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. */
5
6/* $Id$ */
7
8// start of 2deg cone
9 const Float_t zTwoDeg = 117.40864;
10// start of the absorber
11 const Float_t zAbsStart = 90.;
12// end of the W-nose
13 const Float_t zNose = 102.;
14// end of the 5deg line below the TPC field cage
15 const Float_t zConeTPC = 285.;
16// start of concrete absorber
17 const Float_t zAbsCc = 315.;
18
19// max acceptance angle
20 const Float_t accMax = 10.*kDegrad;
21// angle of nose
22 const Float_t theta1 = 24.*kDegrad;
23// angle of second outer cone below field cage
24 const Float_t theta2 = 5. *kDegrad;
25// outer angler of W rear shield
26 const Float_t thetaR = 3. *kDegrad;
27//
28// thicknesses defining the absorber
29// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
30// steel envelope
31 const Float_t dSteel = 1.;
32// poly-ethylene layer
33 const Float_t dPoly = 5.0;
34
35
36
37
38#endif