https://doi.org/10.1140/epjc/s10052-020-8194-1
Regular Article - Theoretical Physics
Strong coupling constants of the doubly heavy 
Baryons with 
Meson
1
Department of Physics, Jahrom University, P. O. Box 74137-66171, Jahrom, Iran
2
Department of Physics, University of Tehran, North Karegar Ave., Tehran, 14395-547, Iran
3
Department of Physics, Doǧuş University, Acibadem-Kadiköy, 34722, Istanbul, Turkey
4
School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), P. O. Box 19395-5531, Tehran, Iran
5
Department of Physics, Shahid Rajaee Teacher Training University, Lavizan, Tehran, 16788, Iran
* e-mail: kazem.azizi@ut.ac.ir
Received:
19
May
2020
Accepted:
27
June
2020
Published online:
9
July
2020
The doubly charmed 
state is the only listed baryon in PDG, which was discovered in the experiment. The LHCb collaboration gets closer to discovering the second doubly charmed baryon 
, hence the investigation of the doubly charmed/bottom baryons from many aspects is of great importance that may help us not only get valuable knowledge on the nature of the newly discovered states, but also in the search for other members of the doubly heavy baryons predicted by the quark model. In this context, we investigate the strong coupling constants among the 
baryons and 
mesons by means of light cone QCD sum rule. Using the general forms of the interpolating currents of the baryons and the distribution amplitudes (DAs) of the 
meson, we extract the values of the coupling constants 
. We extend our analyses to calculate the strong coupling constants among the partner baryons with mesons, as well, and extract the values of the strong couplings 
and 
. The results of this study may help experimental groups in the analyses of the data related to the strong coupling constants among the hadronic multiplets.
© The Author(s), 2020
