Eur. Phys. J. C (2018) 78: 801
https://doi.org/10.1140/epjc/s10052-018-6283-1

Regular Article - Theoretical Physics

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

¹ School of Physics and Electronic Engineering, Guangzhou University, Guangzhou, 510006, People’s Republic of China
² Institute of Theoretical Physics, Chinese Academy of Sciences, P.O.Box 2735, Beijing, 100080, People’s Republic of China
³ School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
⁴ Department of Physics, Chongqing University, Chongqing, 401331, People’s Republic of China

^* e-mail: wuxg@cqu.edu.cn

Received: 10 August 2018
Accepted: 22 September 2018
Published online: 1 October 2018

Abstract

We present a detailed discussion on the doubly charmed baryon 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 and together with the gluon-gluon fusion mechanism via the subprocess have been taken into consideration, where the intermediate diquark is in -state or -state, respectively. Total and differential cross sections have been discussed under various collision energies. To compare with the production via proton-proton collision mode at the LHC, we observe that sizable events can also be generated via p–N and N–N collision modes at the RHIC and LHC. For examples, about and events can be accumulated in p-Pb and Pb-Pb collision modes at the LHC within one operation year.