Work

Three-Body Dynamics of the a 1 ( 1260 ) Resonance from Lattice QCD

Year: 2021

Type: article

Abstract: Resonant hadronic systems often exhibit a complicated decay pattern in which three-body dynamics play a relevant or even dominant role. In this work we focus on the ${a}_{1}(1260)$ resonance. For the first time, the pole position and branching ratios of a three-body resonance are calculated from lattice QCD using one-, two-, and three-meson interpolators and a three-body finite-volume formalism extended to spin and coupled channels. This marks a new milestone for ab initio studies of ordinary resonances along with hybrid and exotic hadrons involving three-body dynamics.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.127.222001

Authors: Maxim Mai, Andrei Alexandru, Ruairí Brett, Chris Culver, Michael Döring, Frank X. Lee, Daniel Sadasivan

Institutions: George Washington University, University of Maryland, College Park, University of Liverpool, Thomas Jefferson National Accelerator Facility, Ave Maria University

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,750

Funders: National Science Foundation, U.S. Department of Energy, UK Research and Innovation, Universitat de València, Office of Science, Advanced Scientific Computing Research, Thomas Jefferson National Accelerator Facility

Awards: G2263355576, ANALYSIS OF HADRONIC AND ELECTROMAGNETIC INTERACTIONS, G4356604013, G5487931169, Resonant Few-Body Systems from the Lattice, NUCLEAR PHYSICS CALCULATIONS FROM QCD AND EFT

OpenAlex ID: W3217410656

FWCI: 1.057

Cites: 135

Cited by: 36

Related to: 10