The Production of $\Xi_{bb}$ at Photon Collider

TL;DR

This paper studies the production of the doubly heavy baryon $ ext{Xi}_{bb}$ at photon colliders, analyzing how polarization and color states affect production rates across different energies.

Contribution

It provides the first detailed analysis of $ ext{Xi}_{bb}$ production considering both color triplet and sextet states and the impact of initial beam polarization.

Findings

Color sextet contributes about 8% to $ ext{Xi}_{bb}$ production.

Production rate decreases with increasing collision energy from 91 GeV to 1000 GeV.

Proper beam polarization can enhance $ ext{Xi}_{bb}$ production by approximately 17%.

Abstract

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