Three pion spectrum in the I=3 channel from lattice QCD

Culver, C.; Mai, M.; Rhett, B.; Alexandru, A.; Doring, M.

doi:10.1103/physrevd.101.114507

Title: Three pion spectrum in the I=3 channel from lattice QCD

Journal Article · 22 June 2020 · Physical Review. D.

DOI: https://doi.org/10.1103/physrevd.101.114507 · OSTI ID:1634237

Culver, C. ^[1]; Mai, M. ^[1];

^[1]; Alexandru, A. ^[2]; Doring, M. ^[3]

George Washington Univ., Washington, DC (United States)
George Washington Univ., Washington, DC (United States); Univ. of Maryland, College Park, MD (United States)
George Washington Univ., Washington, DC (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Three-body states are critical to the dynamics of many hadronic resonances. We show that lattice QCD calculations have reached a stage where these states can be accurately resolved. We perform a calculation over a wide range of parameters and find all states below inelastic threshold agree with predictions from a state-of-the-art phenomenological formalism. This also illustrates the reliability of the formalism used to connect lattice QCD results to infinite volume physics. Our calculation is performed using three positively charged pions, with different lattice geometries and quark masses.

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Research Organization:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: FG02-95ER40907; AC05-06OR23177; PHY-1452055

OSTI ID:: 1634237

Alternate ID(s):: OSTI ID: 1637896

Report Number(s):: JLAB-THY-20-3221; DOE/OR-23177-4998; TRN: US2201676

Journal Information:: Physical Review. D., Vol. 101, Issue 11; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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