Speaker
Description
Baryons and mesons (collectively referred to as hadrons) have been
understood as quark-gluon composite states bound by Quantum ChromoDynamics (QCD), the theory of strong interactions. The conventional understanding is that baryons are made of three quarks and mesons are composed of a quark-antiquark pair. QCD also supports the existence of more complex hadrons, made of more than three quarks. Only recently collider experiments such as at LHCb and Belle have reported these unexpected states, referred to as exotic hadrons, that are compelling candidates for such complex hadrons. The discoveries of several such exotic states dubbed X, Y, Z, and Tcc(3875) in the heavy quark flavor sector have sparked enormous interest in the community. Understanding the binding mechanism of these exotic hadrons can play a crucial role in comprehending the non-perturbative nature of QCD dynamics.
In this talk, I will discuss state-of-the-art lattice QCD investigations
of two-meson interactions involving at least one bottom meson, relevant for heavy tetraquark channels. The computations were conducted on
state-of-the-art MILC ensembles.
| Field of contribution | Phenomenology |
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