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Really useful paper with equations is "Effective Lifetimes of Bs Decays and their constrains on Bs mixing parameters": arXiv:1109.5115
Another one which the flavour specific guys (Stone/Gandini) quote to get their equation is EPJ: DOI:10.1007/s100529901079
Contains CP-odd and CP-even mixtures. Best individual constraint on these parameters by far.
src/PDF_BG_JPsiKK.cpp
Theory
Observables:
Use the paper which is the stand-a-alone BsJpsiPhi 1fb result (i.e. not the update in which it was combined with JPsif0) which is: arXiv:1112.3183.
The 1fb-1 paper which was combined with JpsiPiPi was: arXiv:1304.2600
The decay via the f0 resonance alone is completely CP-odd and hence the lifetime can be used as a direct constraint on . There is a more sophisticated analysis which does the full Bs->JPsiPiPi spectrum (i.e. through severeal resonant states) but this again becomes a mix of CP eigenstates (although is 97.5% CP-odd) and hence no breakdown of the lifetimes is provided.
src/PDF_BG_JPsif0.cpp
Theory
Observables
This is now a pure CP-even eigenstate so we get direct access to via the effective lifetime measurement.
src/PDF_BG_DsDs.cpp
Theory
Observables
Also a pure CP-odd state so similarly to DsDs the effective lifetime gives acces to . Similarly might be useful to reparameterise in terms of
src/PDF_BG_KK.cpp
Theory
Observables
This is a flavour specific channel (has access to both and
src/PDF_BG_DsPi.cpp
Theory
Observables