A quantum field-theoretical model with ground state of decreased symmetry

Marx, G.; Kuti, G.

doi:10.1007/bf02749675

Nuovo Cim

1964

DOI: 10.1007/bf02749675

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A quantum field-theoretical model with ground state of decreased symmetry

G. Marx

G. Kuti

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1965

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Spontaneous Symmetry Breakdown in a Nonlinear Boson Field: a Model forCViolation

Marx

1965

Phys. Rev.

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A boson field with quartic self-coupling is discussed in the BCS approximation. For certain values of the coupling constant the transition from simple products to normal ordered products by a Bogolyubov transformation implies a spontaneous breakdown of the original symmetries in the Lagrangian. In a real scalar field a discrete symmetry can be broken; in more complex fields mass splitting also occurs. If the boson is characterized by the assignment 0 + ~, the nonvanishing vacuum expectation value of its field operator may result in tadpole diagrams, which offer an explanation of the C-violating transitions. The experimental consequences of different coupling schemes between the 0 +~ meson and other particles are discussed in detail. The role of the gizr) and QTZX matrix elements is emphasized in explaining different C-violating transitions in SU(2)-and SU (3) -symmetric ways, respectively.

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Spontaneous Symmetry Breakdown in a Nonlinear Boson Field: a Model forCViolation

Marx

1965

Phys. Rev.

Self Cite

View full text Add to dashboard Cite

show abstract

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A quantum field-theoretical model with ground state of decreased symmetry

Cited by 1 publication

References 4 publications

Spontaneous Symmetry Breakdown in a Nonlinear Boson Field: a Model forCViolation

Spontaneous Symmetry Breakdown in a Nonlinear Boson Field: a Model forCViolation

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