Chiral symmetry breaking and the pion wave function

Journal Article · Wed Dec 01 00:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.5376· OSTI ID:5585388

Mishra, H; Misra, S P ^[1]

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1. Institute of Physics, Bhubaneswar-751005 (India)

We consider here chiral symmetry breaking through a nontrivial vacuum structure with quark-antiquark condensates. We then relate the condensate function to the wave function of the pion as a Goldstone mode. This simultaneously yields the pion also as a quark-antiquark bound state as a localized zero mode in vacuum. We illustrate the above through the Nambu-Jona-Lasinio model to calculate different pionic properties in terms of the vacuum structure for breaking of exact or approximate chiral symmetry, as well as the condensate fluctuations giving rise to [sigma] mesons.

• OSTI ID: 5585388
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 48:11; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
SYMMETRY BREAKING
BOUND STATE
CONDENSATES
FLUCTUATIONS
GOLDSTONE BOSONS
PHASE TRANSFORMATIONS
PIONS
QUARKS
SIGMA PARTICLES
WAVE FUNCTIONS
BARYONS
BOSONS
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
HADRONS
HYPERONS
MESONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
SIGMA BARYONS
STRANGE PARTICLES
SYMMETRY
VARIATIONS
662240* - Models for Strong Interactions- (1992-)
662120 - General Theory of Particles & Fields- Symmetry
Conservation Laws
Currents & Their Properties- (1992-)
662420 - Properties of Mesons & Meson Resonances- (1992-)