Fully heavy tetraquark bbc¯c¯: lifetimes and weak decays

• Published in: The European physical journal. C, Particles and fields Vol. 79; no. 8; pp. 1 - 12
• Main Authors: Li, Gang, Wang, Xiao-Feng, Xing, Ye
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.08.2019; SpringerOpen
• Subjects: Astronomy; Astrophysics and Cosmology; Elementary Particles; Hadrons; Heavy Ions; Measurement Science and Instrumentation; Nuclear Energy; Nuclear Physics; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Regular Article - Theoretical Physics; String Theory

We study the lifetime and weak decays of the full-heavy S-wave 0 + tetraquark T { c ¯ c ¯ } { b b } . Using the operator product expansion rooted in heavy quark expansion, we find a rather short lifetime, at the order ( 0.1 - 0.3 ) × 10 - 12 s depending on the inputs. With the flavor SU(3) symmetry,...