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root/cvsroot/UserCode/VHbb/interface/VHbbNameSpace.h

Comparing UserCode/VHbb/interface/VHbbNameSpace.h (file contents):
Revision 1.1 by bortigno, Fri Dec 14 15:59:45 2012 UTC vs.
Revision 1.4 by nmohr, Tue Jan 15 13:01:10 2013 UTC

#	Line 1 | Line 1
1	<
1	>	#include "TLorentzVector.h"
2	>	#include "TVector3.h"
3		#include "TMath.h"
4
5		namespace VHbb {
#	Line 15 | Line 16 | namespace VHbb {
16		{
17		double deta = eta1 - eta2;
18		double dphi = deltaPhi(phi1, phi2);
19	<	return std::sqrt(deta*deta + dphi*dphi);
19	>	return TMath::Sqrt(deta*deta + dphi*dphi);
20		}
21	+
22	+
23	+	double Hmass( double V_eta,double V_phi,double V_pt,
24	+	double hJet1_eta,double hJet1_phi,double hJet1_pt,
25	+	double hJet2_eta,double hJet2_phi,double hJet2_pt ){
26	+
27	+	TVector3 V(1,1,1);
28	+	V.SetPtEtaPhi(V_pt,V_eta,V_phi);
29	+
30	+	TVector3 H1(1,1,1);
31	+	H1.SetPtEtaPhi(hJet1_pt,hJet1_eta,hJet1_phi);
32	+	H1.SetMag(1/sin(H1.Theta()));
33	+
34	+	TVector3 H2(1,1,1);
35	+	H2.SetPtEtaPhi(hJet2_pt,hJet2_eta,hJet2_phi);
36	+	H2.SetMag(1/sin(H2.Theta()));
37	+
38	+	TVector3 n1(H1);
39	+	TVector3 n2(H2);
40	+
41	+	float det= n1.Px() * n2.Py() - n2.Px() * n1.Py();
42	+
43	+	H1.SetMag( (  - n2.Py() * V.Px() + n2.Px() * V.Py() )  / (sin(n1.Theta()) *det ) );
44	+	H2.SetMag( ( + n1.Py() * V.Px() - n1.Px() * V.Py() )  / (sin(n2.Theta())  *det ) );
45	+
46	+	float mass=TMath::Sqrt( TMath::Power( (H1.Mag()+H2.Mag()),2 ) - TMath::Power(( ( H1+H2 ).Mag()),2) );
47	+
48	+	return mass;
49	+
50	+	}
51	+
52	+	double Hmass_comb(double hJet1_eta,double hJet1_phi,double hJet1_pt, double hJet1_mass,
53	+	double hJet2_eta,double hJet2_phi,double hJet2_pt, double hJet2_mass){
54	+
55	+	TLorentzVector H1, H2;
56	+	H1.SetPtEtaPhiM(hJet1_pt,hJet1_eta,hJet1_phi, hJet1_mass);;
57	+	H2.SetPtEtaPhiM(hJet2_pt,hJet2_eta,hJet2_phi, hJet2_mass);
58	+
59	+	return (H1 + H2).M();
60	+
61	+	}
62	+
63	+	double Hmass_3j(double h_eta,double h_phi,double h_pt, double h_mass,
64	+	double aJet_eta,double aJet_phi,double aJet_pt, double aJet_mass){
65	+
66	+	TLorentzVector H, H3;
67	+	H.SetPtEtaPhiM( h_pt,h_eta,h_phi, h_mass);;
68	+	H3.SetPtEtaPhiM(aJet_pt,aJet_eta,aJet_phi, aJet_mass);
69	+
70	+	return (H + H3).M();
71	+
72	+
73	+	}
74	+
75	+	double ANGLELZ(double pt, double eta, double phi, double mass, double pt2, double eta2, double phi2, double mass2){
76	+	TLorentzVector m1, m2, msum;
77	+	m1.SetPtEtaPhiM(pt, eta, phi, mass);
78	+	m2.SetPtEtaPhiM(pt2, eta2, phi2, mass2);
79	+	msum = m1 + m2;
80	+
81	+	TVector3 bZ =  msum.BoostVector();
82	+
83	+	m1.Boost(-bZ);
84	+	m2.Boost(-bZ);
85	+
86	+	TVector3 b1;
87	+
88	+
89	+	if((int) (pt) % 2 == 0)
90	+	b1 =  m1.BoostVector();
91	+	else
92	+	b1 =  m2.BoostVector();
93	+
94	+	float cosTheta = b1.Dot(msum.BoostVector()) / (b1.Mag()*msum.BoostVector().Mag());
95	+	return(cosTheta);
96	+	}
97	+
98	+
99	+	double ANGLEHB(double pt, double eta, double phi, double e, double pt2, double eta2, double phi2, double e2){
100	+	TLorentzVector m1, m2, msum;
101	+	m1.SetPtEtaPhiE(pt, eta, phi, e);
102	+	m2.SetPtEtaPhiE(pt2, eta2, phi2, e2);
103	+	msum = m1 + m2;
104	+
105	+	TVector3 bZ =  msum.BoostVector();
106	+
107	+	m1.Boost(-bZ);
108	+	m2.Boost(-bZ);
109	+
110	+	TVector3 b1;
111	+
112	+	if((int) (pt) % 2 == 0)
113	+	b1 =  m1.BoostVector();
114	+	else
115	+	b1 =  m2.BoostVector();
116	+
117	+	float cosTheta = b1.Dot(msum.BoostVector()) / (b1.Mag()*msum.BoostVector().Mag());
118	+	return(cosTheta);
119	+	}
120	+
121	+
122	+
123		}
124

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