Tetraquark resonances computed with static lattice QCD potentials and scattering theory

Tetraquark resonances computed with static lattice QCD potentials and scattering theory

We study tetraquark resonances with lattice QCD potentials computed for two static quarks and two dynamical quarks, the Born-Oppenheimer approximation and the emergent wave method of scattering theory. As a proof of concept we focus on systems with isospin I = 0, but consider different relative angu...

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Main Authors: Bicudo Pedro, Cardoso Marco, Peters Antje, Pflaumer Martin, Wagner Marc
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201817505017
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spelling doaj-a225b4d5d1844e6bafdd80b4d125d68f2021-08-02T08:56:10ZengEDP SciencesEPJ Web of Conferences2100-014X2018-01-011750501710.1051/epjconf/201817505017epjconf_lattice2018_05017Tetraquark resonances computed with static lattice QCD potentials and scattering theoryBicudo PedroCardoso MarcoPeters AntjePflaumer MartinWagner MarcWe study tetraquark resonances with lattice QCD potentials computed for two static quarks and two dynamical quarks, the Born-Oppenheimer approximation and the emergent wave method of scattering theory. As a proof of concept we focus on systems with isospin I = 0, but consider different relative angular momenta l of the heavy b quarks. We compute the phase shifts and search for S and T matrix poles in the second Riemann sheet. We predict a new tetraquark resonance for l = 1, decaying into two B mesons, with quantum numbers I(JP) = 0(1−), mass m=10576−4+4 MeV and decay width Γ=112−103+90 MeV.https://doi.org/10.1051/epjconf/201817505017
collection DOAJ
language English
format Article
sources DOAJ
author Bicudo Pedro
Cardoso Marco
Peters Antje
Pflaumer Martin
Wagner Marc
spellingShingle Bicudo Pedro
Cardoso Marco
Peters Antje
Pflaumer Martin
Wagner Marc
Tetraquark resonances computed with static lattice QCD potentials and scattering theory
EPJ Web of Conferences
author_facet Bicudo Pedro
Cardoso Marco
Peters Antje
Pflaumer Martin
Wagner Marc
author_sort Bicudo Pedro
title Tetraquark resonances computed with static lattice QCD potentials and scattering theory
title_short Tetraquark resonances computed with static lattice QCD potentials and scattering theory
title_full Tetraquark resonances computed with static lattice QCD potentials and scattering theory
title_fullStr Tetraquark resonances computed with static lattice QCD potentials and scattering theory
title_full_unstemmed Tetraquark resonances computed with static lattice QCD potentials and scattering theory
title_sort tetraquark resonances computed with static lattice qcd potentials and scattering theory
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2018-01-01
description We study tetraquark resonances with lattice QCD potentials computed for two static quarks and two dynamical quarks, the Born-Oppenheimer approximation and the emergent wave method of scattering theory. As a proof of concept we focus on systems with isospin I = 0, but consider different relative angular momenta l of the heavy b quarks. We compute the phase shifts and search for S and T matrix poles in the second Riemann sheet. We predict a new tetraquark resonance for l = 1, decaying into two B mesons, with quantum numbers I(JP) = 0(1−), mass m=10576−4+4 MeV and decay width Γ=112−103+90 MeV.
url https://doi.org/10.1051/epjconf/201817505017
work_keys_str_mv AT bicudopedro tetraquarkresonancescomputedwithstaticlatticeqcdpotentialsandscatteringtheory
AT cardosomarco tetraquarkresonancescomputedwithstaticlatticeqcdpotentialsandscatteringtheory
AT petersantje tetraquarkresonancescomputedwithstaticlatticeqcdpotentialsandscatteringtheory
AT pflaumermartin tetraquarkresonancescomputedwithstaticlatticeqcdpotentialsandscatteringtheory
AT wagnermarc tetraquarkresonancescomputedwithstaticlatticeqcdpotentialsandscatteringtheory
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