def _get_angularcoeff(q2, wc_obj, par, B, V, lep, nu):
scale = config['renormalization scale']['bvll']
mb = running.get_mb(par, scale)
wc = get_wceff_fccc2(wc_obj,
par,
meson_quark[(B, V)],
lep,
nu,
mb,
scale,
nf=5)
ml = par['m_' + lep]
mB = par['m_' + B]
mV = par['m_' + V]
qi_qj = meson_quark[(B, V)]
if qi_qj == 'bu':
mlight = 0. # neglecting the up quark mass
if qi_qj == 'bc':
mlight = running.get_mc(
par, scale) # this is needed for scalar contributions
N = prefactor(q2, par, B, V, lep)
ff = get_ff(q2, par, B, V)
h = angular.helicity_amps_v(q2, mB, mV, mb, mlight, ml, 0, ff, wc, N)
J = angular.angularcoeffs_general_v(h, q2, mB, mV, mb, mlight, ml, 0)
return J
def _get_angularcoeff(q2, wc_obj, par, B, V, lep, nu):
scale = config['renormalization scale']['bvll']
mb = running.get_mb(par, scale)
wc = get_wceff_fccc(wc_obj,
par,
meson_quark[(B, V)],
lep,
nu,
mb,
scale,
nf=5)
if lep != nu and all(C == 0 for C in wc.values()):
# if all WCs vanish, so does the AC!
return {
k: 0
for k in ['1s', '1c', '2s', '2c', '6s', '6c', 3, 4, 5, 7, 8, 9]
}
ml = par['m_' + lep]
mB = par['m_' + B]
mV = par['m_' + V]
qi_qj = meson_quark[(B, V)]
if qi_qj == 'bu':
mlight = 0. # neglecting the up quark mass
if qi_qj == 'bc':
mlight = running.get_mc(
par, scale) # this is needed for scalar contributions
N = prefactor(q2, par, B, V, lep)
ff = get_ff(q2, par, B, V)
h = angular.helicity_amps_v(q2, mB, mV, mb, mlight, ml, 0, ff, wc, N)
J = angular.angularcoeffs_general_v(h, q2, mB, mV, mb, mlight, ml, 0)
return J
def get_angularcoeff(q2, wc_obj, par, B, V, lep):
scale = config['renormalization scale']['bvll']
mb = running.get_mb(par, scale)
wc = get_wceff_fccc(wc_obj, par, meson_quark[(B,V)], lep, mb, scale, nf=5)
ml = par['m_'+lep]
mB = par['m_'+B]
mV = par['m_'+V]
qi_qj = meson_quark[(B, V)]
if qi_qj == 'bu':
mlight = 0. # neglecting the up quark mass
if qi_qj == 'bc':
mlight = running.get_mc(par, scale) # this is needed for scalar contributions
N = prefactor(q2, par, B, V, lep)
ff = get_ff(q2, par, B, V)
h = angular.helicity_amps_v(q2, mB, mV, mb, mlight, ml, 0, ff, wc, N)
J = angular.angularcoeffs_general_v(h, q2, mB, mV, mb, mlight, ml, 0)
return J
def helicity_amps_ff(q2, ff, wc_obj, par_dict, B, V, lep, cp_conjugate):
par = par_dict.copy()
if cp_conjugate:
par = conjugate_par(par)
scale = config['renormalization scale']['bvll']
label = meson_quark[(B,V)] + lep + lep # e.g. bsmumu, bdtautau
wc = wctot_dict(wc_obj, label, scale, par)
if cp_conjugate:
wc = conjugate_wc(wc)
wc_eff = get_wceff(q2, wc, par, B, V, lep, scale)
ml = par['m_'+lep]
mB = par['m_'+B]
mV = par['m_'+V]
mb = running.get_mb(par, scale)
N = prefactor(q2, par, B, V)
h = angular.helicity_amps_v(q2, mB, mV, mb, 0, ml, ml, ff, wc_eff, N)
return h
def helicity_amps_ff(q2, ff, wc_obj, par_dict, B, V, lep, cp_conjugate):
par = par_dict.copy()
if cp_conjugate:
par = conjugate_par(par)
scale = config['renormalization scale']['bvll']
label = meson_quark[(B, V)] + lep + lep # e.g. bsmumu, bdtautau
wc = wctot_dict(wc_obj, label, scale, par)
if cp_conjugate:
wc = conjugate_wc(wc)
wc_eff = get_wceff(q2, wc, par, B, V, lep, scale)
ml = par['m_' + lep]
mB = par['m_' + B]
mV = par['m_' + V]
mb = running.get_mb(par, scale)
N = prefactor(q2, par, B, V)
h = angular.helicity_amps_v(q2, mB, mV, mb, 0, ml, ml, ff, wc_eff, N)
return h
def _get_angularcoeff(q2, wc_obj, par, B, V, lep, nu):
scale = config['renormalization scale']['bvll']
mb = running.get_mb(par, scale)
wc = get_wceff_fccc(wc_obj, par, meson_quark[(B,V)], lep, nu, mb, scale, nf=5)
if lep != nu and all(C == 0 for C in wc.values()):
# if all WCs vanish, so does the AC!
return {k: 0 for k in
['1s', '1c', '2s', '2c', '6s', '6c', 3, 4, 5, 7, 8, 9]}
ml = par['m_'+lep]
mB = par['m_'+B]
mV = par['m_'+V]
qi_qj = meson_quark[(B, V)]
if qi_qj == 'bu':
mlight = 0. # neglecting the up quark mass
if qi_qj == 'bc':
mlight = running.get_mc(par, scale) # this is needed for scalar contributions
N = prefactor(q2, par, B, V, lep)
ff = get_ff(q2, par, B, V)
h = angular.helicity_amps_v(q2, mB, mV, mb, mlight, ml, 0, ff, wc, N)
J = angular.angularcoeffs_general_v(h, q2, mB, mV, mb, mlight, ml, 0)
return J
