Effect of multiparton interaction on CP performance in B-decay at LHC

87-019 Recent CDF data on double parton interaction manifested a strong correlation between partonic interactions. The B­production has been simulated with the default option of PYTHIA, which considers uncorrelated partonic interaction and the option, which takes into account the correlated interactions. It is shown, that in the last case the B­event is more complicated, enhanced by higher multiplicities and large fluctuations. The obtained results bring an additional strong reason to reconsider the LHC­B trigger strategy.