Differential D41 Diff 174 src/LauKMatrixProdPole.cc

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src/LauKMatrixProdPole.cc

Show First 20 Lines • Show All 78 Lines • ▼ Show 20 Lines	LauComplex LauKMatrixProdPole::amplitude(const LauKinematics* kinematics)
thePropagator_->updatePropagator(kinematics);		thePropagator_->updatePropagator(kinematics);

// Sum the pole denominator terms over all channels j, multiplying by		// Sum the pole denominator terms over all channels j, multiplying by
// the propagator terms. Note that we do not sum over poles, since we		// the propagator terms. Note that we do not sum over poles, since we
// only want one of the production pole terms.		// only want one of the production pole terms.
Int_t nChannels = thePropagator_->getNChannels();		Int_t nChannels = thePropagator_->getNChannels();
Int_t jChannel;		Int_t jChannel;

for (jChannel = 0; jChannel < nChannels; jChannel++) {		for (jChannel = 0; jChannel < nChannels; jChannel++) {
		johndanAuthorUnsubmitted Done Inline Actions @jback, here I assume the 0th channel is the one for which the amplitude is requested. This assumption has precedence in your code, right? johndan: @jback, here I assume the 0th channel is the one for which the amplitude is requested. This…
		jbackUnsubmitted Done Inline Actions Well, you could have the case where the first channel has L = 0, but others have L > 0. So we should check if the propagator has any non-zero L channels, perhaps by returning a cached boolean that keeps track of this condition at initialisation. Do we need to include the resBWFactor? I thought this was already in the "D" matrices (denominator terms involving q, a and R). jback: Well, you could have the case where the first channel has L = 0, but others have L > 0. So we…
		johndanAuthorUnsubmitted Done Inline Actions On the first point, I don't think it matters if other channels have L>0 does it? Why do we need to track it? On the second, I think you're spot on - the resBWFactor has been dropped as you say. johndan: On the first point, I don't think it matters if other channels have L>0 does it? Why do we need…
		jbackUnsubmitted Done Inline Actions Yes, we don't need to track this since we have changed how the angular dependence is included. jback: Yes, we don't need to track this since we have changed how the angular dependence is included.

Double_t gj = thePropagator_->getCouplingConstant(poleIndex_, jChannel);		Double_t gj = thePropagator_->getCouplingConstant(poleIndex_, jChannel);
LauComplex prodTerm = thePropagator_->getPropTerm(jChannel);		LauComplex prodTerm = thePropagator_->getPropTerm(jChannel);

prodTerm.rescale(gj);		prodTerm.rescale(gj);

amp += prodTerm;		amp += prodTerm;

}		}

Double_t poleDenom = thePropagator_->getPoleDenomTerm(poleIndex_);		Double_t poleDenom = thePropagator_->getPoleDenomTerm(poleIndex_);

// Include Adler zero factor if requested		// Include Adler zero factor if requested
Double_t adlerZero(1.0);		Double_t adlerZero(1.0);
if (useProdAdler_) {adlerZero = thePropagator_->getAdlerZero();}		if (useProdAdler_) {adlerZero = thePropagator_->getAdlerZero();}

amp.rescale(poleDenom*adlerZero);		amp.rescale(poleDenom*adlerZero);

return amp;		return amp;

}		}

		const std::vector<LauParameter*>& LauKMatrixProdPole::getFloatingParameters()
		{

		this->clearFloatingParameters();

		Int_t nChannels = thePropagator_->getNChannels();

		for (int jChannel = 0 ; jChannel < nChannels ; jChannel++)
		{
		LauParameter& par_gj_ = thePropagator_->getCouplingParameter(poleIndex_, jChannel);
		if ( !par_gj_.fixed() )
		this->addFloatingParameter( &par_gj_ );
		}

		return this->getParameters();

		}
		tlathamUnsubmitted Done Inline Actions Braces have gone missing tlatham: Braces have gone missing
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