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Title: Three-body unitarity in the finite volume

Journal Article · · European Physical Journal. A
 [1];  [2]
  1. George Washington Univ., Washington, DC (United States)
  2. George Washington Univ., Washington, DC (United States) ; Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

We present the physical interpretation of lattice QCD simulations, performed in a small volume, requires an extrapolation to the infinite volume. A method is proposed to perform such an extrapolation for three interacting particles at energies above threshold. For this, a recently formulated relativistic $$3\to 3$$ amplitude based on the isobar formulation is adapted to the finite volume. The guiding principle is two- and three-body unitarity that imposes the imaginary parts of the amplitude in the infinite volume. In turn, these imaginary parts dictate the leading power-law finite-volume effects. It is demonstrated that finite-volume poles arising from the singular interaction, from the external two-body sub-amplitudes, and from the disconnected topology cancel exactly leaving only the genuine three-body eigenvalues. Lastly, the corresponding quantization condition is derived for the case of three identical scalar-isoscalar particles and its numerical implementation is demonstrated.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Grant/Contract Number:
AC05-06OR23177
OSTI ID:
1416327
Report Number(s):
JLAB-THY--17-2554; DOE/OR/23177-4221; arXiv:1709.08222; PII: 12440
Journal Information:
European Physical Journal. A, Journal Name: European Physical Journal. A Journal Issue: 12 Vol. 53; ISSN 1434-6001
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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  • Molina Peralta, Raquel; Landay, Justin; Hu, Bin
  • Proceedings of XVII International Conference on Hadron Spectroscopy and Structure — PoS(Hadron2017) https://doi.org/10.22323/1.310.0135
conference March 2018
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Review of Particle Physics text January 2018
Resonance properties from the finite-volume energy spectrum text January 2008
Efimov physics in a finite volume text January 2008
The triton in a finite volume text January 2010
Coupled channel analysis of the rho meson decay in lattice QCD text January 2011
Three particles in a finite volume: The breakdown of spherical symmetry text January 2012
Scalar mesons moving in a finite volume and the role of partial wave mixing text January 2012
Axial resonances a1(1260), b1(1235) and their decays from the lattice text January 2014
Finite-volume Hamiltonian method for coupled channel interactions in lattice QCD text January 2014
A relativistic, model-independent, three-particle quantization condition text January 2014
Coupled channel approach to strangeness S = -2 baryon-bayron interactions in Lattice QCD text January 2015
Expressing the three-particle finite-volume spectrum in terms of the three-to-three scattering amplitude text January 2015
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Perturbative results for two and three particle threshold energies in finite volume text January 2015
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Three particle quantization condition in a finite volume: 2. general formalism and the analysis of data text January 2017
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Cited By (43)

Dynamically-coupled partial-waves in ρπ isospin-2 scattering from lattice QCD journal July 2018
Three-body scattering: ladders and resonances journal August 2019
Signatures of few-body resonances in finite volume journal September 2018
Equivalence of three-particle scattering formalisms journal August 2019
Scattering amplitudes from finite-volume spectral functions journal August 2019
b 1 resonance in coupled π ω , π ϕ scattering from lattice QCD journal September 2019
Unitarity of the infinite-volume three-particle scattering amplitude arising from a finite-volume formalism journal September 2019
Consistency checks for two-body finite-volume matrix elements: Conserved currents and bound states journal December 2019
Long-range electroweak amplitudes of single hadrons from Euclidean finite-volume correlation functions journal January 2020
Lattice model of heavy-light three-body system journal February 2020
Three-body unitarity versus finite-volume π + π + π + spectrum from lattice QCD journal March 2020
Three-body spectrum in a finite volume: The role of cubic symmetry journal June 2018
Numerical study of the relativistic three-body quantization condition in the isotropic approximation journal July 2018
Three-particle bound states in a finite volume: Unequal masses and higher partial waves journal July 2018
Variational approach to N -body interactions in finite volume journal November 2018
Pole position of the a 1 ( 1260 ) from τ -decay journal November 2018
Multiple-particle interaction in ( 1 + 1 )-dimensional lattice model journal January 2019
Three-particle systems with resonant subprocesses in a finite volume journal January 2019
Towards the minimal spectrum of excited baryons journal January 2019
Energy shift of the three-particle system in a finite volume journal April 2019
Finite-Volume Spectrum of π + π + and π + π + π + Systems journal February 2019
Two- and Three-Pion Finite-Volume Spectra at Maximal Isospin from Lattice QCD journal October 2019
I = 3 Three-Pion Scattering Amplitude from Lattice QCD journal January 2020
The impact of $K^{+}\Lambda$ K + Λ photoproduction on the resonance spectrum journal June 2018
Opportunities for Lattice QCD in quark and lepton flavor physics journal November 2019
Hadrons and nuclei journal November 2019
Two- and three-body interactions in $$\varphi ^4$$ φ 4 theory from lattice simulations journal October 2018
Quark-mass dependence in $$\omega \rightarrow 3\pi $$ ω → 3 π decays journal October 2018
Dispersive analysis of $$\eta \rightarrow 3 \pi $$ η → 3 π journal November 2018
Phenomenology of relativistic $$\mathbf {3}\rightarrow \mathbf {3}$$ 3 → 3 reaction amplitudes within the isobar approximation journal January 2019
Three-body spectrum in a finite volume: the role of cubic symmetry text January 2018
Dynamically-coupled partial-waves in ρπ isospin-2 scattering from lattice QCD text January 2018
Three-particle bound states in a finite volume: unequal masses and higher partial waves text January 2017
Three-body spectrum in a finite volume: the role of cubic symmetry text January 2018
Numerical study of the relativistic three-body quantization condition in the isotropic approximation text January 2018
Signatures of few-body resonances in finite volume text January 2018
Three-particle systems with resonant subprocesses in a finite volume text January 2018
Energy shift of the three-particle system in a finite volume text January 2019
Scattering amplitudes from finite-volume spectral functions text January 2019
Opportunities for lattice QCD in quark and lepton flavor physics text January 2019
Three-body scattering: Ladders and Resonances text January 2019
Three-body unitarity versus finite-volume $π^+π^+π^+$ spectrum from lattice QCD text January 2019
Consistency checks for two-body finite-volume matrix elements: I. Conserved currents and bound states text January 2019

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