utilityFunctions.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
#pragma once
 
namespace Belle2 {
  namespace ECL {
 
    //** Enumurate ECL detector regions */
    enum DetectorRegion {outsideAcceptance = 0, FWD = 1, BRL = 2, BWD = 3, FWDGap = 11, BWDGap = 13};
 
    DetectorRegion getDetectorRegion(const double theta)
    {
      if (theta < 0.2164208) return DetectorRegion::outsideAcceptance;   // < 12.4deg
      if (theta < 0.5480334) return DetectorRegion::FWD;   // < 31.4deg
      if (theta < 0.561996) return DetectorRegion::FWDGap;   // < 32.2deg
      if (theta < 2.2462387) return DetectorRegion::BRL;   // < 128.7deg
      if (theta < 2.2811453) return DetectorRegion::BWDGap;   // < 130.7deg
      if (theta < 2.7070057) return DetectorRegion::BWD;   // < 155.1deg
      return DetectorRegion::outsideAcceptance;
    }
 
  } // namespace ECL
} // namespace Belle2