| Revision: | 1.1 |
| Committed: | Fri Dec 14 15:59:45 2012 UTC (12 years, 4 months ago) by bortigno |
| Content type: | text/plain |
| Branch: | MAIN |
| Log Message: | Namespace |
| # | User | Rev | Content |
|---|---|---|---|
| 1 | bortigno | 1.1 | |
| 2 | #include "TMath.h" | ||
| 3 | |||
| 4 | namespace VHbb { | ||
| 5 | |||
| 6 | double deltaPhi(double phi1,double phi2) | ||
| 7 | { | ||
| 8 | double result = phi1 - phi2; | ||
| 9 | while (result > TMath::Pi()) result -= 2*TMath::Pi(); | ||
| 10 | while (result <= -TMath::Pi()) result += 2*TMath::Pi(); | ||
| 11 | return result; | ||
| 12 | } | ||
| 13 | |||
| 14 | inline double deltaR(double eta1,double phi1,double eta2,double phi2) | ||
| 15 | { | ||
| 16 | double deta = eta1 - eta2; | ||
| 17 | double dphi = deltaPhi(phi1, phi2); | ||
| 18 | return std::sqrt(deta*deta + dphi*dphi); | ||
| 19 | } | ||
| 20 | } | ||
| 21 |