Problem 368

Summary:	Incorrect K0 mixing in K0S and K0L inelastic scattering
Product:	Geant4	Reporter:	dennis.herbert.wright
Component:	processes/hadronic/models	Assignee:	Hans-Peter.Wellisch
Status:	CLOSED REMIND
Severity:	normal
Priority:	P3
Version:	4.0
Hardware:	All
OS:	All

Description dennis.herbert.wright 2002-04-23 17:09:23 CEST

In G4LEKaonZeroLInelastic the K0L is treated exclusively as a K0bar instead of
half K0bar and half K0.  Similarly, in G4LEKaonZeroSInelastic the K0S is treated
exclusively as a K0.

Proposal:  treat the above classes as they are in the high energy (GHEISHA)
model, that is create two new classes G4LEKaonZeroInelastic and
G4LEAntiKaonZeroInelastic and call their ApplyYourself() methods randomly from
G4LEKaonZeroLInelastic and G4LEKaonZeroSInelastic.

Comment 1 Hans-Peter.Wellisch 2002-05-02 08:21:59 CEST

Yes, K0 reactions are not treated correctly at present. But also the way I did
it for the HEP models is not correct. The problem at hand is that we do not have
easy access to the delta of the proper time of a particle since the last elastic
collission.
I can see how htis can bother BaBar. I'll take care.

Many greetings,

Hans-Peter.

Comment 2 Hans-Peter.Wellisch 2002-08-08 07:48:59 CEST

Dear Dennis,

   I am putting this up as a milestone, either for this year or next year,
depending on the judement of the TSB.

Many greetings,

Hans-Peter.

Comment 3 Hans-Peter.Wellisch 2003-03-13 02:08:59 CET

was done in 5.0.