Rivet: ParticleBase comparison -> double functors

| Rivet 3.1.9

Classes | Typedefs
ParticleBase comparison -> double functors
Functions for Particles and Jets

## Classes
struct | Rivet::DoubleParticleBaseFunctor
| Base type for Particle -> double functors. More...
struct | Rivet::DeltaRWRT
| Calculator of \( \Delta R \) with respect to a given momentum. More...
struct | Rivet::DeltaPhiWRT
| Calculator of \( \Delta \phi \) with respect to a given momentum. More...
struct | Rivet::DeltaEtaWRT
| Calculator of \( \Delta \eta \) with respect to a given momentum. More...
struct | Rivet::AbsDeltaEtaWRT
| Calculator of \( |\Delta \eta| \) with respect to a given momentum. More...
struct | Rivet::DeltaRapWRT
| Calculator of \( \Delta y \) with respect to a given momentum. More...
struct | Rivet::AbsDeltaRapWRT
| Calculator of \( |\Delta y| \) with respect to a given momentum. More...

## Typedefs
using | Rivet::deltaRWRT = DeltaRWRT
using | Rivet::deltaPhiWRT = DeltaPhiWRT
using | Rivet::deltaEtaWRT = DeltaEtaWRT
using | Rivet::absDeltaEtaWRT = AbsDeltaEtaWRT
using | Rivet::deltaRapWRT = DeltaRapWRT
using | Rivet::absDeltaRapWRT = AbsDeltaRapWRT

## Detailed Description

Todo:
  Move to FourMomentum functions

To be passed to transform()any(jets, DeltaRLess(electron, 0.4))