TABLE OF CONTENTS
/spinProjector [ Modules ]
NAME
module spinProjector
PURPOSE
- Provides the spin projector for spin 3/2 resonances
spinProjector/spin32proj [ Functions ]
[ Top ] [ spinProjector ] [ Functions ]
NAME
function spin32proj(resID,mu,nu,p_res)
PURPOSE
- provides the spin projector for spin 3/2 resonances as defined e.g. in PRC 73, 065502 (2006), eq. (21)
- return value is contravariant: spin32proj^(mu nu)
INPUTS
- real, dimension(0:3),intent(in) :: p_res ! resonance 4-momentum
- integer :: mu , nu ! Lorentz indices
- integer :: resID ! ID of the resonance
- logical, optional :: useInvMass ! if true, use invariant mass in projector, if false, use pole mass (needed for u-channel)
OUTPUT
- spin32proj is complex with dimension(0:3,0:3)