Weak-decay searches for Qsu¯d¯ tetraquarks

• Published in: The European physical journal. C, Particles and fields Vol. 82; no. 7
• Main Author: Yu, Fu-Sheng
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.07.2022; Springer Nature B.V
• Subjects: Astronomy; Astrophysics and Cosmology; Elementary Particles; Hadrons; Heavy Ions; Kinematics; Lifetime; Measurement Science and Instrumentation; Nuclear Energy; Nuclear Physics; Particle decay; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quarks; Regular Article - Theoretical Physics; String Theory; Theoretical physics; Thresholds

We propose to search for the open heavy-flavor exotic states with the quark components of Q s u ¯ d ¯ with Q = b , c via their weak decays. If there exist such exotic states below the BK or DK thresholds, they can only decay weakly. The advantages include: (i) the experimental backgrounds from the s...