Quantum gravity, the Planck lattice and the Standard Model

Details Quantum gravity, the Planck lattice and the Standard Model Quantum gravity, the Planck lattice and the Standard Model

Publishing date

1995-03-15

URL

arxiv.org/abs/hep-th/9503102v1

Science

Physics

Field

High Energy Physics

SubField

High Energy Physics - Theory

Additional info

Invited Talk at the ``VII Marcel Grossman Meeting on General Relativity'' - Stanford, July 1994. 14 pages, latex, five figures

Type

Scientific paper

Abstract

A possible ground state of Quantum Gravity is Wheeler's ``space-time foam'', which can be modeled as a ``Planck-lattice'', a space-time cubic lattice of lattice constant $a_P\simeq 10^{33}$cm, the Planck length. I analyse the structure of the Standard Model defined on the Planck Lattice, in the light of the ``no-go'' theorem of Nielsen and Ninomiya, which requires an extension of the continuum model through Nambu-Jona Lasinio terms, quadrilinear in the Fermi-fields. As a result, a theory of masses (of both fermions and gauge bosons) is seen to emerge that, without Higgs excitations, agrees well with observations.

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