K{sub e4} decay as a source of information about the σ-particle mass and about the nature of spin-1 mesons

Journal Article · Mon Dec 15 00:00:00 EST 2014 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778814120163· OSTI ID:22314745

Shabalin, E. P., E-mail: [e-mail] ^[1]

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1. National Research Center Kurchatov Institute, Institute of Theoretical and Experimental Physics (Russian Federation)

Data on the form factors for K{sub e4} decay make it possible to fix the value of a parameter that is not determined by the theory itself and which is contained in the Lagrangian for the system formed by 0{sup +} and 0{sup −} mesons. This makes it possible to find the mass of the lightest σ meson: mσ = 663 MeV. As for the nature of spin-1 mesons, which also contribute to the form factors for K{sub e4} decay, data on them give no way to interpret spin-1 mesons as gauge bosons of chiral theory.

• OSTI ID: 22314745
• Journal Information: Physics of Atomic Nuclei, Vol. 77, Issue 12; Other Information: Copyright (c) 2014 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
CHIRALITY
FORM FACTORS
LAGRANGIAN FUNCTION
MESONS
PARTICLE DECAY
SPIN