| 1 | #ifndef _CAL_TOWER_HH_
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| 2 | #define _CAL_TOWER_HH_
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| 3 |
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| 4 | //----------------------------------------------------------------------
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| 5 | // This file distributed with FastJet has been obtained from
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| 6 | // http://www.pa.msu.edu/~huston/Les_Houches_2005/JetClu+Midpoint-StandAlone.tgz
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| 7 | //
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| 8 | // Permission to distribute it with FastJet has been granted by Joey
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| 9 | // Huston (see the COPYING file in the main FastJet directory for
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| 10 | // details).
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| 11 | // Changes from the original file are listed below.
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| 12 | //----------------------------------------------------------------------
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| 13 |
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| 14 | // History of changes compared to the original CalTower.hh file
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| 15 | //
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| 16 | // 2011-11-14 Gregory Soyez <soyez@fastjet.fr>
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| 17 | //
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| 18 | // * added a few parentheses suggested by the -Wparentheses gcc option
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| 19 | //
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| 20 | // 2009-01-17 Gregory Soyez <soyez@fastjet.fr>
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| 21 | //
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| 22 | // * put the code in the fastjet::cdf namespace
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| 23 | //
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| 24 | // 2008-01-15 Gregory Soyez <soyez@fastjet.fr>
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| 25 | //
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| 26 | // * fixed issues with compilation under VC (definition of M_PI)
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| 27 | //
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| 28 | // 2006-09-24 Gavin Salam <salam@lpthe.jussieu.fr>
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| 29 | //
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| 30 | // * added JetClu+MidPoint to FastJet
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| 31 |
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| 32 | #include <cmath>
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| 33 |
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| 34 | #ifndef M_PI
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| 35 | #define M_PI 3.141592653589793238462643383279502884197
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| 36 | #endif
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| 37 |
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| 38 | #include <fastjet/internal/base.hh>
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| 39 |
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| 40 | FASTJET_BEGIN_NAMESPACE
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| 41 |
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| 42 | namespace cdf{
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| 43 |
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| 44 | const double TOWER_THETA[23] = { 3.000, 5.700, 8.400, 11.100, 13.800, 16.500, 19.200, 21.900, 24.600, 27.300, 30.000, 33.524,
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| 45 | 36.822, 40.261, 43.614, 47.436, 51.790, 56.735, 62.310, 68.516, 75.297, 82.526, 90.000 };
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| 46 |
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| 47 | class CalTower
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| 48 | {
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| 49 | public:
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| 50 |
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| 51 | double Et,eta,phi;
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| 52 | int iEta,iPhi;
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| 53 |
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| 54 | CalTower(): Et(0), eta(0), phi(0), iEta(-1), iPhi(-1) {}
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| 55 | CalTower(double Et0, double eta0, double phi0): Et(Et0), eta(eta0), phi(phi0)
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| 56 | {
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| 57 | if(fabs(eta) < -log(tan(TOWER_THETA[0]*M_PI/180/2))){
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| 58 | if(eta <= 0){
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| 59 | for(int i = 0; i < 22; i++)
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| 60 | if(eta < -log(tan((180 - TOWER_THETA[i + 1])*M_PI/180/2))){
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| 61 | iEta = 4 + i;
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| 62 | break;
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| 63 | }
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| 64 | }
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| 65 | else{
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| 66 | for(int i = 0; i < 22; i++)
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| 67 | if(-eta < -log(tan((180 - TOWER_THETA[i + 1])*M_PI/180/2))){
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| 68 | iEta = 47 - i;
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| 69 | break;
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| 70 | }
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| 71 | }
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| 72 | if ((iEta >= 8 && iEta < 14) || (iEta >= 38 && iEta < 44))
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| 73 | iPhi = int(phi/2/M_PI*48)%48;
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| 74 | else
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| 75 | iPhi = int(phi/2/M_PI*24)%24;
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| 76 | }
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| 77 | else{
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| 78 | iEta = -1;
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| 79 | iPhi = -1;
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| 80 | }
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| 81 | }
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| 82 | CalTower(double Et0, double eta0, double phi0, int iEta0, int iPhi0): Et(Et0), eta(eta0), phi(phi0), iEta(iEta0), iPhi(iPhi0) {}
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| 83 | CalTower(const CalTower& c): Et(c.Et), eta(c.eta), phi(c.phi), iEta(c.iEta), iPhi(c.iPhi) {}
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| 84 | bool isEqual(CalTower c)
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| 85 | {
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| 86 | return Et == c.Et && eta == c.eta && phi == c.phi && iEta == c.iEta && iPhi == c.iPhi;
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| 87 | }
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| 88 | };
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| 89 |
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| 90 | } // namespace cdf
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| 91 |
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| 92 | FASTJET_END_NAMESPACE
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| 93 |
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| 94 | #endif
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