Forces between static-light mesons
Marc Wagner (the ETM Collaboration)
TL;DR
This paper calculates the interaction potentials between static-light mesons using lattice QCD, revealing which quantum number combinations lead to attraction or repulsion, aiding understanding of meson interactions.
Contribution
It introduces a method to determine the attractive or repulsive nature of static-light meson pairs based on their quantum numbers using lattice QCD data.
Findings
Identifies isospin, spin, and parity combinations that produce attractive forces.
Provides a simple rule linking quantum numbers to interaction type.
Uses Wilson twisted mass lattice QCD with two dynamical quark flavors.
Abstract
The isospin, spin and parity dependent potential of a pair of static-light mesons is computed using Wilson twisted mass lattice QCD with two flavors of degenerate dynamical quarks. From the results a simple rule can be deduced stating, which isospin, spin and parity combinations correspond to attractive and which to repulsive forces.
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