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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