The Production of Ξbb at Photon Collider

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The inclusive production of the doubly heavy baryon Ξbb is investigated at polarized and unpolar- ized photon collider. bb pair in both color triplet and sextet have been considered to transform into Ξbb. The results indicate that the contribution from color sextet is about 8% for Ξbb production. For the ILC collision energy ranging from 91GeV to 1000GeV, the total cross section of Ξbb shows a downtrend, i.e., the production of Ξbb has the maximal rate at √ S = 91GeV. Our results indicate that the initial beam polarization may be an important asset for the production of Ξbb. At some collision point, the production rate of Ξbb can be increased about 17% with an appropriate choice of the initial beam polarization.