L1MuGMTPhiLUT Class Reference

#include <L1MuGMTPhiLUT.h>

Public Member Functions
	L1MuGMTPhiLUT ()
	constructor More...
virtual	~L1MuGMTPhiLUT ()
	destructor More...

Static Public Member Functions
static float	dphi (int isys, int isISO, int icharge, int ieta, float pt)
	look up delta-phi with integer eta More...
static float	dphi (int isys, int isISO, int icharge, float eta, float pt)
	look up delta-phi More...

Static Private Member Functions
static int	etabin (float eta, int isys)

Static Private Attributes
static const int	bRPC = 2
static const int	CSC = 1
static const int	DT = 0
static float	etabins [NSYS][NETA+1]
static float	fitparams_phi [NRP][NSYS][NETA][2][3]
static const int	fRPC = 3
static const unsigned int	NETA = 8
static const unsigned int	NRP = 2
static const int	NSYS = 4

Detailed Description

Description: Look-up table for GMT Phi projection unit

         Caluclates float delta-phi from charge, eta and pT 

         Simple static implementation with parametrization for
         CMS121 geometry

Definition at line 43 of file L1MuGMTPhiLUT.h.

Constructor & Destructor Documentation

L1MuGMTPhiLUT::L1MuGMTPhiLUT

(

)

constructor

Definition at line 44 of file L1MuGMTPhiLUT.cc.

{}

L1MuGMTPhiLUT::~L1MuGMTPhiLUT ( )

virtual

destructor

Definition at line 49 of file L1MuGMTPhiLUT.cc.

{}

Member Function Documentation

float L1MuGMTPhiLUT::dphi ( int  isys, int  isISO, int  icharge, int  ieta, float  pt  )

static

look up delta-phi with integer eta

Definition at line 68 of file L1MuGMTPhiLUT.cc.

References a, b, bRPC, c, CSC, DT, fitparams_phi, fRPC, M_PI, and DiDispStaMuonMonitor_cfi::pt.

Referenced by dphi(), L1MuGMTLFPhiProLUT::TheLookupFunction(), and L1MuGMTMIAUPhiPro1LUT::TheLookupFunction().

                                                                              {
  if ((isys == DT || isys == bRPC) && pt < 4.)
    pt = 4.;  // cut off
  if ((isys == CSC || isys == fRPC) && pt < 3.)
    pt = 3.;

  float a = fitparams_phi[isISO][isys][ieta][icharge][0];
  float b = fitparams_phi[isISO][isys][ieta][icharge][1];
  float c = fitparams_phi[isISO][isys][ieta][icharge][2];

  float dphi = a + b / pt + c / (pt * pt);

  // dphi is difference between low edge of muon phi bin and real phi in calo/vtx

  // correct for RPC LUTs which were calculated with center of bin phi
  if (isys == bRPC || isys == fRPC)
    dphi -= 1.25 / 180. * M_PI;

  return dphi;
}

static float L1MuGMTPhiLUT::dphi ( int  isys, int  isISO, int  icharge, float  eta, float  pt  )

inlinestatic

look up delta-phi

Definition at line 57 of file L1MuGMTPhiLUT.h.

References dphi(), and etabin().

                                                                           {
    return dphi(isys, isISO, icharge, etabin((float)fabs(eta), isys), pt);
  };

int L1MuGMTPhiLUT::etabin ( float  eta, int  isys  )

staticprivate

Definition at line 55 of file L1MuGMTPhiLUT.cc.

References etabins, mps_fire::i, and NETA.

Referenced by dphi().

                                             {
  int i;
  for (i = 0; i < (int)NETA; i++)
    if (eta >= etabins[isys][i] && eta < etabins[isys][i + 1])
      break;
  if (i >= (int)NETA)
    edm::LogWarning("LUTProblem") << "L1MuGMTPhiLUT::etabin(): could not assign eta bin ";
  return i;
}

Member Data Documentation

const int L1MuGMTPhiLUT::bRPC = 2

staticprivate

Definition at line 68 of file L1MuGMTPhiLUT.h.

Referenced by dphi().

const int L1MuGMTPhiLUT::CSC = 1

staticprivate

Definition at line 67 of file L1MuGMTPhiLUT.h.

Referenced by dphi().

const int L1MuGMTPhiLUT::DT = 0

staticprivate

Definition at line 66 of file L1MuGMTPhiLUT.h.

Referenced by dphi().

float L1MuGMTPhiLUT::etabins

staticprivate

Initial value:

= {
    {0.00, 0.22, 0.27, 0.58, 0.77, 0.87, 0.92, 1.24, 1.24},  
    {0.00, 1.06, 1.26, 1.46, 1.66, 1.86, 2.06, 2.26, 2.46},  
    {0.00, 0.06, 0.25, 0.41, 0.54, 0.70, 0.83, 0.93, 1.04},  
    {1.04, 1.24, 1.36, 1.48, 1.61, 1.73, 1.85, 1.97, 2.10}   
}

Definition at line 78 of file L1MuGMTPhiLUT.h.

Referenced by etabin().

float L1MuGMTPhiLUT::fitparams_phi

staticprivate

Definition at line 79 of file L1MuGMTPhiLUT.h.

Referenced by dphi().

const int L1MuGMTPhiLUT::fRPC = 3

staticprivate

Definition at line 69 of file L1MuGMTPhiLUT.h.

Referenced by dphi().

const unsigned int L1MuGMTPhiLUT::NETA = 8

staticprivate

Definition at line 73 of file L1MuGMTPhiLUT.h.

Referenced by etabin().

const unsigned int L1MuGMTPhiLUT::NRP = 2

staticprivate

Definition at line 76 of file L1MuGMTPhiLUT.h.

const int L1MuGMTPhiLUT::NSYS = 4

staticprivate

Definition at line 65 of file L1MuGMTPhiLUT.h.