correlators_key_meson_3pt: Generate HDF5 key for CVC 'correlators' meson 3pt function...

In hadron: Analysis Framework for Monte Carlo Simulation Data in Physics

Generate HDF5 key for CVC 'correlators' meson 3pt function with a local or derivative insertion

Description

The key for a meson three-point function has the form:

/sud+-g-u-g/t10/dt12/gf5/pfx0pfy0pfz0/gc0/Ddim0_dir0/Ddim1_dir1/D.../gi5/pix0piy0piz0

where, from left to right:

• 'u' is the flavour of the "backward" propagator

• 'd' is the flavour of the "sequential" propagator

• '+' indicates that 'sud' is daggered

• 'g' indicates a gamma insertion

• 'u' is the flavour of the foward propagator

• 'g' indicates a Dirac structure at the source

• 'tXX' is the source time slice

• 'dtYY' is the source-sink separation

• 'gfN' gamma structure at the sink in CVC indexing

• 'pfxXpfyYpfzZ' is the sink momentum in CVC convention (sink and source phases are both e^ipx)

• 'gcN' gamma structure at the current insertion point in CVC indexing

• 'DdimJ_dirK' covariant displacement applied in dimension 'J', direction 'K' where it should be noted that this is. in operator notation, i.e., the right-most displacement is the one applied first.

• ...

• 'giN' gamma structure at the souce in CVC indexing

• 'pixXpiyYpizZ' at the source in CVC convention

Usage

correlators_key_meson_3pt(fwd_flav, bwd_flav, seq_flav, src_ts, dt, snk_gamma,
  cur_gamma, cur_displ_dim = NA, cur_displ_dir = NA, src_gamma, src_p,
  snk_p)

Arguments

fwd_flav	String, "forward" quark flavour identifier.
bwd_flav	String, "backward" quark flavour identifier.
seq_flav	String, "sequential" quark flavour identifier.
src_ts	Integer, source time slice.
dt	Integer, source-sink separation.
snk_gamma	Integer, CVC convention gamma matrix identifier at the source.
cur_gamma	Integer, CVC convention gamma matrix identified at the insertion.
cur_displ_dim	Integer vector of dimensions (0,1,2,3 <-> t,x,y,z) in which covariant displacements have been applied. This vector will be parsed in reverse order, such that the first element here is the first displacement applied to the spinor in the calculation and the right-most element in the key. Length must be matched to 'cur_displ_dir'. Defaults to 'NA' for no displacements.
cur_displ_dir	Integer vector of directions (forward, backward) <-> (0,1) in which the covariant displacements have been applied. Parsing as for 'cur_displ_dim'. Length must be matched to 'cur_displ_dim'. Defaults to 'NA' for no displacements.
src_gamma	Integer, CVC convention gamma matrix identified at the sink.
src_p	Integer vector of length 3. (x,y,z) components of the source momentum vector in lattice units.
snk_p	Integer vector of length 3. (x,y,z) components of the sink momentum vector in lattice units.

Value

A character vector with the HDF5 key.

hadron documentation built on Sept. 9, 2022, 5:06 p.m.