Associated production of electroweak bosons and $D/B$ heavy mesons at LHCb and prospects to observe double parton interactions

We study the production of weak gauge bosons in association w ith heavy flavored mesons at the LHCb conditions in both single (SPS) and double (DPS) parton scattering mechanisms. We find that the usual DPS factorization formula needs to be correct ed for the limited partonic phase space, and that including the relevant corrections reduces discre pancies in the associated ZD production. We conclude finally that double parton scattering dominates the production of same-sign W ± D ± states, as well as the production of W − bosons associated with B -mesons. The latter processes can thus be regarded as new useful DPS indicators.