光子のシャワーシェープにまつわる xAOD の変数

• /// @brief uncalibrated energy (sum of cells) in presampler in a 1x1 window in cells in eta X phi
  e011 = 0,
  /// @brief uncalibrated energy (sum of cells) in presampler in a 3x3 window in cells in eta X phi
  e033 = 1,
  /// @brief uncalibrated energy (sum of cells) in strips in a 3x2 window in cells in eta X phi
  e132 = 2,
  /// @brief uncalibrated energy (sum of cells) in strips in a 15x2 window in cells in eta X phi
  e1152 = 3,
  /// @brief transverse energy in the first sampling of the hadronic calorimeters behind the cluster calculated from ehad1
  ethad1 = 4,
  /// @brief ET leakage into hadronic calorimeter with exclusion of energy in CaloSampling::TileGap3
  ethad = 5,
  /// @brief E leakage into 1st sampling of had calo (CaloSampling::HEC0 + CaloSampling::TileBar0 + CaloSampling::TileExt0)
  ehad1 = 6,
  /// @brief E1/E = fraction of energy reconstructed in the first sampling, where E1 is energy in all strips belonging to the cluster and E is the total energy reconstructed in the electromagnetic calorimet\
  er cluster
  f1 = 7,
  /// @brief fraction of energy reconstructed in 3rd sampling
  f3 = 8,
  /// @brief E1(3x1)/E = fraction of the energy reconstructed in the first longitudinal compartment of the electromagnetic calorimeter, where E1(3x1) the energy reconstructed in +/-3 strips in eta, centered\
  around the maximum energy strip and E is the energy reconstructed in the electromagnetic calorimeter
  f1core = 9,
  /// @brief E3(3x3)/E fraction of the energy reconstructed in the third compartment of the electromagnetic calorimeter, where E3(3x3), energy in the back sampling, is the sum of the energy contained in a 3\
  x3 window around the maximum energy cell
  f3core = 10,
  /// @brief uncalibrated energy (sum of cells) of the middle sampling in a rectangle of size 3x3 (in cell units eta X phi)
  e233 = 11,
  /// @brief uncalibrated energy (sum of cells) of the middle sampling in a rectangle of size 3x5
  e235 = 12,
  /// @brief uncalibrated energy (sum of cells) of the middle sampling in a rectangle of size 5x5
  e255 = 13,
  /// @brief uncalibrated energy (sum of cells) of the middle sampling in a rectangle of size 3x7
  e237 = 14,
  /// @brief uncalibrated energy (sum of cells) of the middle sampling in a rectangle of size 7x7
  e277 = 15,
  /// @brief uncalibrated energy (sum of cells) of the third sampling in a rectangle of size 3x3
  e333 = 16,
  /// @brief uncalibrated energy (sum of cells) of the third sampling in a rectangle of size 3x5
  e335 = 17,
  /// @brief uncalibrated energy (sum of cells) of the third sampling in a rectangle of size 3x7
  e337 = 18,
  /// @brief uncalibrated energy (sum of cells) of the middle sampling in a rectangle of size 7x7
  e377 = 19,
  /// @brief shower width using +/-3 strips around the one with the maximal energy deposit:
  /// w3 strips = sqrt{sum(Ei)x(i-imax)^2/sum(Ei)}, where i is the number of the strip and imax the strip number of the most energetic one
  weta1 = 20,
  /// @brief the lateral width is calculated with a window of 3x5 cells using the energy weighted sum over all cells, which depends on the particle impact point inside the cell: weta2 =
  /// sqrt(sum Ei x eta^2)/(sum Ei) -((sum Ei x eta)/(sum Ei))^2, where Ei is the energy of the i-th cell
  weta2 = 21,
  /// @brief 2nd max in strips calc by summing 3 strips
  e2ts1 = 22,
  /// @brief energy of the cell corresponding to second energy maximum in the first sampling
  e2tsts1 = 23,
  /// @brief shower shape in the shower core : [E(+/-3)-E(+/-1)]/E(+/-1), where E(+/-n) is the energy in ± n strips around the strip with highest energy
  fracs1 = 24,
  /// @brief same as egammaParameters::weta1 but without corrections on particle impact point inside the cell
  widths1 = 25,
  /// @brief same as egammaParameters::weta2 but without corrections on particle impact point inside the cell
  widths2 = 26,
  /// @brief relative position in eta within cell in 1st sampling
  poscs1 = 27,
  /// @brief relative position in eta within cell in 2nd sampling
  poscs2= 28,
  /// @brief uncorr asymmetry in 3 strips in the 1st sampling
  asy1 = 29,
  /// @brief difference between shower cell and predicted track in +/- 1 cells
  pos = 30,
  /// @brief Difference between the track and the shower positions:
  /// sum_{i=i_m-7}^{i=i_m+7}E_i x (i-i_m) / sum_{i=i_m-7}^{i=i_m+7}E_i,
  /// The difference between the track and the shower positions measured
  /// in units of distance between the strips, where i_m is the impact cell
  /// for the track reconstructed in the inner detector and E_i is the energy
  /// reconstructed in the i-th cell in the eta direction for constant phi given by the track parameters
  pos7 = 31,
  /// @brief barycentre in sampling 1 calculated in 3 strips
  barys1 =32,
  /// @brief shower width is determined in a window detaxdphi = 0,0625 ×~0,2, corresponding typically to 20 strips in
  ///eta : wtot1=sqrt{sum Ei x ( i-imax)^2 / sum Ei}, where i is the strip number and imax the strip number of the first local maximum
  wtots1 = 33,
  /// @brief energy reconstructed in the strip with the minimal value between the first and second maximum
  emins1 = 34,
  /// @brief energy of strip with maximal energy deposit
  emaxs1 = 35,
  /// @brief 1-ratio of energy in 3x3 over 3x7 cells;
• /// E(3x3) = E0(1x1) + E1(3x1) + E2(3x3) + E3(3x3); E(3x7) = E0(3x3) + E1(15x3) + E2(3x7) + E3(3x7)
• r33over37allcalo = 36,
• /// @brief core energy in em calo E(core) = E0(3x3) + E1(15x2) + E2(5x5) + E3(3x5)
• ecore = 37,
• /// @brief e237/e277
• Reta = 38,
• /// @brief e233/e237
• Rphi = 39,
• /// @brief (emaxs1-e2tsts1)/(emaxs1+e2tsts1)
• Eratio = 40,
• /// @bried ethad/et
• Rhad = 41,
• /// @bried ethad1/et
• Rhad1 = 42,
• /// @bried e2tsts1-emins1
• DeltaE =43,
• ///maximum number of enums
• NumberOfShowerShapes = 44

-- YuyaKano1 - 2016-04-06