Dijet resonance from leptophobic Z' and light baryonic cold dark matter

摘要

In light of the recent CDF report on the excess in the W jj channel, we analyze (non)supersymmetric U(1)B × U(1)L model, interpreting the dijet peak as a leptophobic U(1)B gauge boson. If this excess is confirmed, it has an interesting implication for the baryonic cold dark matter (CDM) in the model: there should be light CDM with a few GeV mass, and direct detection cross section at the level of a few×10~(?2) pb.