Equivalence of three-particle scattering formalisms

Jackura, A.W.; Dawid, S.M.; Fernández-Ramírez, C.; Mathieu, V.; Mikhasenko, M.; Pilloni, A.; Sharpe, S.R.; Szczepaniak, A.P.

doi:10.1103/PhysRevD.100.034508

Equivalence of three-particle scattering formalisms

A.W. Jackura
(
- Indiana U. and
- Indiana U., CEEM
)
,
S.M. Dawid
(
- Indiana U. and
- Indiana U., CEEM
)
,
C. Fernández-Ramírez
(
- Mexico U., ICN
)
,
V. Mathieu
(
- Madrid U.
)
,
M. Mikhasenko
(
- CERN
)

May 28, 2019

14 pages

Published in:

Phys.Rev.D 100 (2019) 3, 034508

Published: Aug 14, 2019

e-Print:

1905.12007 [hep-ph]

DOI:

10.1103/PhysRevD.100.034508

Report number:

JLAB-THY-19-2947

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Abstract: (APS)

In recent years, different on-shell 3→3 scattering formalisms have been proposed to be applied to both lattice QCD and infinite-volume scattering processes. We prove that the formulation in the infinite volume presented by Hansen and Sharpe in [M. T. Hansen and S. R. Sharpe, Phys. Rev. D 92, 114509 (2015).PRVDAQ1550-799810.1103/PhysRevD.92.114509] and subsequently Briceño et al. in [R. A. Briceño, M. T. Hansen, and S. R. Sharpe, Phys. Rev. D 95, 074510 (2017).PRVDAQ2470-001010.1103/PhysRevD.95.074510] can be recovered from the B-matrix representation, derived on the basis of S-matrix unitarity, presented by Mai et al. in [M. Mai, B. Hu, M. Döring, A. Pilloni, and A. Szczepaniak, Eur. Phys. J. A 53, 177 (2017).EPJAFV1434-600110.1140/epja/i2017-12368-4] and Jackura et al. in [A. Jackura, C. Fernández-Ramírez, V. Mathieu, M. Mikhasenko, J. Nys, A. Pilloni, K. Saldaña, N. Sherrill, and A. P. Szczepaniak (JPAC Collaboration), Eur. Phys. J. C 79, 56 (2019).EPCFFB1434-604410.1140/epjc/s10052-019-6566-1] Therefore, both formalisms in the infinite volume are equivalent and the physical content is identical. Additionally, the Faddeev equations are recovered in the nonrelativistic limit of both representations.

Note:

13 pages, 5 figures

Lattice field theories, lattice QCD
scattering
on-shell
quantum chromodynamics
lattice field theory
Faddeev equation
nonrelativistic
unitarity
S-matrix

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