On b- and $\tau$-multiplicities per event in SUSY (mSUGRA) and instrumental implications

We investigate the probability to find a b or tau in SUSY production with the mSUGRA model. We find that in the entire parameter space the probability per event to find a b-jet of E_T^b > 50 GeV within CMS acceptance ( eta < 2.4) is significant for all tan( beta), varying from a 10 % level to 90 % depending on the m_0, m_1/2 region. The probabilities per event to find a tau with the same kinematical cuts is also significant and it increases sharply with tan( beta). These findings point to the central role a microvertex device would play in case that SUSY ( mSUGRA) is indeed realized in nature and found at the LHC. As the m_0, m_1/2 parameter space of largest tau and largest b-jet probability per event tend to be complementary, to have an efficient high-performance three-layered microvertex device would represent a "no-loose" instrumental strategy in this context. First investigations done in the context of the more general MSSM scenario confirm the findings based on mSUGRA.