ampgen_pipi_swave

class PiPiSwaveKmatrix(name, **kwargs)

Bases: Particle

pipi S wave model from AmpGen (https://github.com/GooFit/AmpGen/blob/master/src/Lineshapes/kMatrix.cpp). using the parameters from DtoKKpipi_v2.opt (https://github.com/GooFit/AmpGen/blob/master/options/DtoKKpipi_v2.opt)

(Source code, png, hires.png, pdf)

get_amp(data, data_c, **kwargs)

get_params_vecter()

init_params()

model_name = 'pipi_Swave'

complex_sqrt(x)

constructKMatrix(this_s, nChannels, poleConfigs)

d_prod(a, b)

gFromGamma(m, gamma, rho)

getPropagator(kMatrix, phaseSpace)

kMatrix_fun(s, all_tokens=['pole.0'], new_params={}, particleName='PiPi00')

phsp_FOCUS(s, m0, m1)

phsp_fourPi(s)

Parameterisation of the 4pi phase space taken from Laura (https://laura.hepforge.org/ or Ref. https://arxiv.org/abs/1711.09854)

phsp_twoBody(s, m0, m1)

pol(x, p)

class poleConfig(s, couplings=None)

Bases: object

add(x)

property couplings

to_matrix(x)