Pnd_etac_2gamma.C File Reference

Go to the source code of this file.

Functions
gSystem	Load ("libPhysics.so")
gSystem	Load ("libEG.so")
gSystem	Load ("lib/libPndJRGen.so")
gRandom	SetSeed (123456)
	if (!TDatabasePDG::Instance()) ->GetParticle(999)
Beam	SetXYZM (0., 0., pz_pbar,((TDatabasePDG::Instance()) -> GetParticle(-2212)) -> Mass())
Target	SetXYZM (0., 0., 0.,((TDatabasePDG::Instance()) -> GetParticle(2212)) -> Mass())

Variables
double	m_prot =.938272
double	m_etac =2.9798
double	E_pbar =(m_etac*m_etac-2*m_prot*m_prot)/(2*m_prot)
double	pz_pbar =sqrt(E_pbar*E_pbar-m_prot*m_prot)
TLorentzVector	Vertex
TLorentzVector	Beam
TLorentzVector	Target
TLorentzVector	s = Beam+Target

Function Documentation

if

(

!

TDatabasePDG::Instance()) ->GetParticle(999

)

Definition at line 15 of file Pnd_etac_2gamma.C.

               {22,22};

gSystem Load

(

"libPhysics.so"

)

gSystem Load

(

"libEG.so"

)

gSystem Load

(

"lib/libPndJRGen.so"

)

gRandom SetSeed

(

123456

)

Beam SetXYZM	(	0.	,
		0.	,
		pz_pbar	,
		((TDatabasePDG::Instance()) -> GetParticle(-2212)) -> Mass()
	)

Target SetXYZM	(	0.	,
		0.	,
		0.	,
		((TDatabasePDG::Instance()) -> GetParticle(2212)) -> Mass()
	)

Variable Documentation

TLorentzVector Beam

Definition at line 29 of file Pnd_etac_2gamma.C.

double E_pbar =(m_etac*m_etac-2*m_prot*m_prot)/(2*m_prot)

Definition at line 24 of file Pnd_etac_2gamma.C.

double m_etac =2.9798

Definition at line 23 of file Pnd_etac_2gamma.C.

double m_prot =.938272

Definition at line 22 of file Pnd_etac_2gamma.C.

double pz_pbar =sqrt(E_pbar*E_pbar-m_prot*m_prot)

Definition at line 25 of file Pnd_etac_2gamma.C.

s = Beam+Target

Definition at line 29 of file Pnd_etac_2gamma.C.

TLorentzVector Target

Definition at line 29 of file Pnd_etac_2gamma.C.

TLorentzVector Vertex

Definition at line 29 of file Pnd_etac_2gamma.C.