Published May 1, 2018 | Version v1
Journal article Metadata-only

Light tetraquarks in a Dyson-Schwinger/Bethe-Salpeter approach

Creators

  • 1. Institut für Theoretische Physik, Justus-Liebig Universität Gießen, 35392 Gießen (Germany)
  • 2. CFTP, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa (Portugal)

Description

A number of bound states of the strong interaction with potential non-q q̄ nature are waiting to be understood within QCD. A prominent example are the light scalars with JPC = 0++, which have been interpreted as tetraquarks already long ago. Recent four-body calculations in the Dyson-Schwinger/Bethe-Salpeter approach support the tetraquark hypothesis and find the σ meson to have a strong pion-pion component. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/1024/1/012035

Additional details

Identifiers

DOI
10.1088/1742-6596/1024/1/012035;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
1024
Journal Issue
1
Journal Page Range
[5 p.]
ISSN
1742-6596

Conference

Title
FAIR NExt generation ScientistS 2017
Acronym
FAIRNESS 2017
Dates
28 May - 3 Jul 2017
Place
Sitges (Spain)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
52080454
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BETHE-SALPETER EQUATION; BOUND STATE; FOUR-BODY PROBLEM; HYPOTHESIS; MESONS; PION-PION INTERACTIONS; QUANTUM CHROMODYNAMICS; QUARKS; STRONG INTERACTIONS
Descriptors DEC
BOSONS; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; FIELD THEORIES; FUNDAMENTAL INTERACTIONS; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; MANY-BODY PROBLEM; MESON-MESON INTERACTIONS; PARTICLE INTERACTIONS; QUANTUM FIELD THEORY