# Hadronic production of the doubly charmed baryon via the proton–nucleus and the nucleus–nucleus collisions at the RHIC and LHC

The European Physical Journal C, Oct 2018

We present a detailed discussion on the doubly charmed baryon $$\Xi _{cc}$$ production at the RHIC and LHC via the proton–nucleus (p–N) and nucleus–nucleus (N–N) collision modes. The extrinsic charm mechanism via the subprocesses $$g+c\rightarrow (cc)[n]+\bar{c}$$ and $$c+c\rightarrow (cc)[n]+g$$ together with the gluon-gluon fusion mechanism via the subprocess $$g+g\rightarrow (cc)[n]+\bar{c}+\bar{c}$$ have been taken into consideration, where the intermediate diquark is in $$[n]=[^1S_0]_\mathbf{6}$$-state or $$[^3S_1]_{\bar{\mathbf{3}}}$$-state, respectively. Total and differential cross sections have been discussed under various collision energies. To compare with the $$\Xi _{cc}$$ production via proton-proton collision mode at the LHC, we observe that sizable $$\Xi _{cc}$$ events can also be generated via p–N and N–N collision modes at the RHIC and LHC. For examples, about $$8.1\times 10^7$$ and $$6.7\times 10^7$$ $$\Xi _{cc}$$ events can be accumulated in p-Pb and Pb-Pb collision modes at the LHC within one operation year.

This is a preview of a remote PDF: https://link.springer.com/content/pdf/10.1140%2Fepjc%2Fs10052-018-6283-1.pdf

Gu Chen, Chao-Hsi Chang, Xing-Gang Wu. Hadronic production of the doubly charmed baryon via the proton–nucleus and the nucleus–nucleus collisions at the RHIC and LHC, The European Physical Journal C, 2018, 801, DOI: 10.1140/epjc/s10052-018-6283-1