o2::track Namespace Reference

Namespaces
namespace	pid_constants

Classes
struct	CrossInfo
class	PID
struct	TrackAuxPar
class	TrackLTIntegral
class	TrackParametrization
class	TrackParametrizationWithError
class	TrackParCovFwd
class	TrackParFwd

Typedefs
using	TrackParF = TrackParametrization< float >
using	TrackParD = TrackParametrization< double >
using	TrackPar = TrackParF
using	TrackParCovF = TrackParametrizationWithError< float >
using	TrackParCovD = TrackParametrizationWithError< double >
using	TrackParCov = TrackParCovF
using	SMatrix55Sym = ROOT::Math::SMatrix< double, 5, 5, ROOT::Math::MatRepSym< double, 5 > >
using	SMatrix55Std = ROOT::Math::SMatrix< double, 5 >
using	SMatrix5 = ROOT::Math::SVector< Double_t, 5 >

Enumerations
enum	ParLabels : int {   kY , kZ , kSnp , kTgl ,   kQ2Pt }
enum	CovLabels : int {   kSigY2 , kSigZY , kSigZ2 , kSigSnpY ,   kSigSnpZ , kSigSnp2 , kSigTglY , kSigTglZ ,   kSigTglSnp , kSigTgl2 , kSigQ2PtY , kSigQ2PtZ ,   kSigQ2PtSnp , kSigQ2PtTgl , kSigQ2Pt2 }
enum	DirType : int { DirInward = -1 , DirAuto = 0 , DirOutward = 1 }

Functions
	GPUconstexpr () int CovarMap[kNParams][kNParams] = {0, 2, 5, 9, 14}
template<typename value_T >
	GPUdi () TrackParametrization< value_T >
template<typename value_T >
	GPUhdi () uint16_t TrackParametrization< value_T >
template<typename value_T = float>
	GPUd () value_T BetheBlochSolid(value_T bg
	if (gpu::CAMath::Abs(tet) > 0.03f)
	if (x > kp2)
else	if (x > kp1)
	GPUd () void TrackLTIntegral

Variables
constexpr int	kNParams = 5
constexpr int	kCovMatSize = 15
constexpr int	kLabCovMatSize = 21
constexpr float	kCY2max = 100 * 100
constexpr float	kCZ2max = 100 * 100
constexpr float	kCSnp2max = 1 * 1
constexpr float	kCTgl2max = 1 * 1
constexpr float	kC1Pt2max = 100 * 100
constexpr float	kMostProbablePt = 0.6f
constexpr float	kCalcdEdxAuto = -999.f
constexpr float	HugeF = o2::constants::math::VeryBig
constexpr float	MaxPT = 100000.
constexpr float	MinPTInv = 1. / MaxPT
constexpr float	ELoss2EKinThreshInv = 1. / 0.025
constexpr int	MaxELossIter = 50
value_T	rho = 2.33
value_T value_T	kp1 = 0.20
value_T value_T value_T	kp2 = 3.00
value_T value_T value_T value_T	meanI = 173e-9
value_T value_T value_T value_T value_T	meanZA = 0.49848)
value_T	step
value_T gpu::gpustd::array< value_T, 7 > &	vect
const int	ix = 0
const int	iy = 1
const int	iz = 2
const int	ipx = 3
const int	ipy = 4
const int	ipz = 5
const int	ipp = 6
constexpr value_T	kOvSqSix = 0.408248f
value_T	cosx = vect[ipx]
value_T	cosy = vect[ipy]
value_T	cosz = vect[ipz]
value_T	tet = rho * step
value_T	tsint
value_T	sintt = (1.f - tet * kOvSqSix) * (1.f + tet * kOvSqSix)
value_T	sint = tet * sintt
value_T	cos1t = 0.5f * tet
	else
value_T	f1 = step * sintt
value_T	f2 = step * cos1t
value_T	f3 = step * tsint * cosz
value_T	f4 = -tet * cos1t
value_T	f5 = sint
constexpr value_T	mK = 0.307075e-3
constexpr value_T	me = 0.511e-3
kp1 *kp2 *value_T	bg2 = bg * bg
kp1 *kp2 *value_T	beta2 = bg2 / (1 + bg2)
value_T	maxT = 2.f * me * bg2
value_T	d2 = 0.
const value_T	x = gpu::CAMath::Log(bg)
const value_T	lhwI = gpu::CAMath::Log(28.816f * 1e-9f * gpu::CAMath::Sqrt(rho * meanZA) / meanI)
auto	dedx = mK * meanZA / beta2 * (0.5f * gpu::CAMath::Log(2 * me * bg2 * maxT / (meanI * meanI)) - beta2 - d2)
value_T	bg
auto	t1 = 1 + bg2
auto	derH = (mK * meanZA * (t1 + 1. / bg2) - dedx) / (bg * t1)

Typedef Documentation

SMatrix5

using o2::track::SMatrix5 = typedef ROOT::Math::SVector<Double_t, 5>

Definition at line 32 of file TrackFwd.h.

SMatrix55Std

using o2::track::SMatrix55Std = typedef ROOT::Math::SMatrix<double, 5>

Definition at line 31 of file TrackFwd.h.

SMatrix55Sym

using o2::track::SMatrix55Sym = typedef ROOT::Math::SMatrix<double, 5, 5, ROOT::Math::MatRepSym<double, 5> >

Definition at line 30 of file TrackFwd.h.

TrackPar

using o2::track::TrackPar = typedef TrackParF

Definition at line 29 of file Track.h.

TrackParCov

typedef TrackParametrizationWithError< float > o2::track::TrackParCov

Definition at line 33 of file Track.h.

TrackParCovD

using o2::track::TrackParCovD = typedef TrackParametrizationWithError<double>

Definition at line 32 of file Track.h.

TrackParCovF

typedef TrackParametrizationWithError< float > o2::track::TrackParCovF

Definition at line 31 of file Track.h.

TrackParD

using o2::track::TrackParD = typedef TrackParametrization<double>

Definition at line 28 of file Track.h.

TrackParF

using o2::track::TrackParF = typedef TrackParametrization<float>

Definition at line 27 of file Track.h.

Enumeration Type Documentation

CovLabels

enum o2::track::CovLabels : int

Enumerator
kSigY2
kSigZY
kSigZ2
kSigSnpY
kSigSnpZ
kSigSnp2
kSigTglY
kSigTglZ
kSigTglSnp
kSigTgl2
kSigQ2PtY
kSigQ2PtZ
kSigQ2PtSnp
kSigQ2PtTgl
kSigQ2Pt2

Definition at line 75 of file TrackParametrization.h.

DirType

enum o2::track::DirType : int

Enumerator
DirInward
DirAuto
DirOutward

Definition at line 93 of file TrackParametrization.h.

ParLabels

enum o2::track::ParLabels : int

Enumerator
kY
kZ
kSnp
kTgl
kQ2Pt

Definition at line 70 of file TrackParametrization.h.

Function Documentation

GPUconstexpr()

o2::track::GPUconstexpr

(

)

= {0, 2, 5, 9, 14}

GPUd() [1/2]

template<typename value_T = float>

GPUd

(

)

Definition at line 150 of file TrackUtils.h.

GPUd() [2/2]

o2::track::GPUd

(

)

< add step in cm to integrals

Definition at line 26 of file TrackLTIntegral.cxx.

GPUdi()

template<typename value_T >

o2::track::GPUdi

(

)

Definition at line 273 of file TrackParametrization.h.

GPUhdi()

template<typename value_T >

o2::track::GPUhdi

(

)

Definition at line 702 of file TrackParametrization.h.

if() [1/3]

o2::track::if	(	gpu::CAMath::Abs(tet)	,
		0.	03f
	)

Definition at line 78 of file TrackUtils.h.

if() [2/3]

else o2::track::if	(	x	,
		kp1
	)

Definition at line 140 of file TrackUtils.h.

if() [3/3]

o2::track::if	(	x	,
		kp2
	)

Definition at line 138 of file TrackUtils.h.

Variable Documentation

beta2

kp1* kp2* value_T o2::track::beta2 = bg2 / (1 + bg2)

Definition at line 131 of file TrackUtils.h.

bg

value_T o2::track::bg

Initial value:

{
  
  
  
  
  
  
  
  
  
  
  
  constexpr value_T mK = 0.307075e-3

Definition at line 193 of file TrackUtils.h.

bg2

auto o2::track::bg2 = bg * bg

Definition at line 131 of file TrackUtils.h.

cos1t

o2::track::cos1t = 0.5f * tet

Definition at line 77 of file TrackUtils.h.

cosx

value_T o2::track::cosx = vect[ipx]

Definition at line 72 of file TrackUtils.h.

cosy

value_T o2::track::cosy = vect[ipy]

Definition at line 72 of file TrackUtils.h.

cosz

value_T o2::track::cosz = vect[ipz]

Definition at line 72 of file TrackUtils.h.

d2

value_T o2::track::d2 = 0.

Definition at line 135 of file TrackUtils.h.

dedx

return dedx o2::track::dedx = mK * meanZA / beta2 * (0.5f * gpu::CAMath::Log(2 * me * bg2 * maxT / (meanI * meanI)) - beta2 - d2)

Definition at line 144 of file TrackUtils.h.

derH

return derH o2::track::derH = (mK * meanZA * (t1 + 1. / bg2) - dedx) / (bg * t1)

Definition at line 211 of file TrackUtils.h.

ELoss2EKinThreshInv

constexpr float o2::track::ELoss2EKinThreshInv = 1. / 0.025

constexpr

Definition at line 120 of file TrackParametrization.h.

else

o2::track::else

Initial value:

{
    tsint = tet * tet / 6.f

Definition at line 84 of file TrackUtils.h.

f1

value_T o2::track::f1 = step * sintt

Definition at line 91 of file TrackUtils.h.

f2

value_T o2::track::f2 = step * cos1t

Definition at line 92 of file TrackUtils.h.

f3

value_T o2::track::f3 = step * tsint * cosz

Definition at line 93 of file TrackUtils.h.

f4

value_T o2::track::f4 = -tet * cos1t

Definition at line 94 of file TrackUtils.h.

f5

value_T o2::track::f5 = sint

Definition at line 95 of file TrackUtils.h.

HugeF

constexpr float o2::track::HugeF = o2::constants::math::VeryBig

constexpr

Definition at line 117 of file TrackParametrization.h.

ipp

const int o2::track::ipp = 6

Definition at line 69 of file TrackUtils.h.

ipx

const int o2::track::ipx = 3

Definition at line 69 of file TrackUtils.h.

ipy

const int o2::track::ipy = 4

Definition at line 69 of file TrackUtils.h.

ipz

const int o2::track::ipz = 5

Definition at line 69 of file TrackUtils.h.

ix

const int o2::track::ix = 0

Definition at line 69 of file TrackUtils.h.

iy

const int o2::track::iy = 1

Definition at line 69 of file TrackUtils.h.

iz

const int o2::track::iz = 2

Definition at line 69 of file TrackUtils.h.

kC1Pt2max

constexpr float o2::track::kC1Pt2max = 100 * 100

Definition at line 103 of file TrackParametrization.h.

kCalcdEdxAuto

constexpr float o2::track::kCalcdEdxAuto = -999.f

Definition at line 105 of file TrackParametrization.h.

kCovMatSize

constexpr int o2::track::kCovMatSize = 15

Definition at line 97 of file TrackParametrization.h.

kCSnp2max

constexpr float o2::track::kCSnp2max = 1 * 1

Definition at line 101 of file TrackParametrization.h.

kCTgl2max

constexpr float o2::track::kCTgl2max = 1 * 1

Definition at line 102 of file TrackParametrization.h.

kCY2max

constexpr float o2::track::kCY2max = 100 * 100

constexpr

Definition at line 99 of file TrackParametrization.h.

kCZ2max

constexpr float o2::track::kCZ2max = 100 * 100

Definition at line 100 of file TrackParametrization.h.

kLabCovMatSize

constexpr int o2::track::kLabCovMatSize = 21

Definition at line 97 of file TrackParametrization.h.

kMostProbablePt

constexpr float o2::track::kMostProbablePt = 0.6f

Definition at line 104 of file TrackParametrization.h.

kNParams

constexpr int o2::track::kNParams = 5

constexpr

Definition at line 97 of file TrackParametrization.h.

kOvSqSix

constexpr value_T o2::track::kOvSqSix = 0.408248f

constexpr

Definition at line 70 of file TrackUtils.h.

kp1

value_T value_T o2::track::kp1 = 0.20

Definition at line 36 of file TrackUtils.h.

kp2

value_T value_T value_T o2::track::kp2 = 3.00

Definition at line 36 of file TrackUtils.h.

lhwI

const value_T o2::track::lhwI = gpu::CAMath::Log(28.816f * 1e-9f * gpu::CAMath::Sqrt(rho * meanZA) / meanI)

Definition at line 137 of file TrackUtils.h.

MaxELossIter

constexpr int o2::track::MaxELossIter = 50

constexpr

Definition at line 121 of file TrackParametrization.h.

MaxPT

constexpr float o2::track::MaxPT = 100000.

constexpr

Definition at line 118 of file TrackParametrization.h.

maxT

value_T o2::track::maxT = 2.f * me * bg2

Definition at line 132 of file TrackUtils.h.

me

constexpr value_T o2::track::me = 0.511e-3

constexpr

Definition at line 128 of file TrackUtils.h.

meanI

value_T value_T value_T value_T o2::track::meanI = 173e-9

Definition at line 36 of file TrackUtils.h.

meanZA

constexpr value_T o2::track::meanZA = 0.49848)

constexpr

Definition at line 36 of file TrackUtils.h.

MinPTInv

constexpr float o2::track::MinPTInv = 1. / MaxPT

constexpr

Definition at line 119 of file TrackParametrization.h.

mK

constexpr value_T o2::track::mK = 0.307075e-3

constexpr

Definition at line 127 of file TrackUtils.h.

rho

value_T o2::track::rho = 2.33

Definition at line 36 of file TrackUtils.h.

sint

o2::track::sint = tet * sintt

Definition at line 77 of file TrackUtils.h.

sintt

o2::track::sintt = (1.f - tet * kOvSqSix) * (1.f + tet * kOvSqSix)

Definition at line 77 of file TrackUtils.h.

step

value_T o2::track::step

Definition at line 42 of file TrackUtils.h.

t1

auto o2::track::t1 = 1 + bg2

Definition at line 209 of file TrackUtils.h.

tet

value_T o2::track::tet = rho * step

Definition at line 75 of file TrackUtils.h.

tsint

value_T o2::track::tsint

Definition at line 77 of file TrackUtils.h.

vect

value_T gpu::gpustd::array< value_T, 7 > & o2::track::vect

Initial value:

{
  
 
  static_assert(std::is_floating_point_v<value_T>)

Definition at line 42 of file TrackUtils.h.

x

const value_T o2::track::x = gpu::CAMath::Log(bg)

Definition at line 136 of file TrackUtils.h.