arXiv subjects

Astri Kleppe

Publications and source records attributed to Astri Kleppe.

5 recordsLinked to original sources

arXiv2025

Unified Pati-Salam from Noncommutative Geometry: Overview and Phenomenological Remarks

The lack of clear new-physics signals at the LHC searches motivates models that can guide current and future collider searches. The spectral action principle within the noncommutative geometry (NCG) framework yields such models with distinctive phenomenology. This formalism derives the actions of the Standard Model, General Relativity, and beyond from the underlying algebra, putting them on a common geometric footing. Certain versions of Pati-Salam (PS) models with gauge coupling unification and limited scalar content can be derived from an appropriate noncommutative algebra. In this paper, I review these gauge-coupling-unified Pati-Salam models and discuss their phenomenological aspects, focusing on the $S_1$ scalar leptoquark.

hep-ph↗

arXiv2022

Proceedings to the 24rd International Workshop "What Comes Beyond the Standard Models", July 5 -- July 11, 2021, Bled, Slovenia, [Virtual Workshop -- July 5.--11. 2021]

Contributions of the participants of the 24th International Workshop "What Comes Beyond the Standard Models", July 5 to July 11, 2021, Bled, Slovenia, presented either with the arxiv number of each contribution or with the webside of the Proceedings published by DMFA, ZALOlZNISTVO LJUBLJANA, DECEMBER 2021.

physics.gen-ph↗

arXiv2014

Deriving diffeomorphism symmetry

In an earlier article, we have "derived" space, as a part of the Random Dynamics project. In order to get locality we need to obtain reparametrization symmetry, or equivalently, diffeomorphism symmetry. There we sketched a procedure for how to get locality by first obtaining reparametrization symmetry, or equivalently, diffeomorphism symmetry. This is the object of the present article.

gr-qc↗

arXiv2013

Flavour Symmetric Mass Matrices

The structure of flavour space is determined by the form of the quark mass matrices in the weak flavour space basis. We examine some matrix textures in the light of flavour permutations symmetry arguments, for three and four families.

hep-ph↗

arXiv1996

On Chiral p-Forms

Some aspects of chiral p-forms, in particular the obstruction that makes it hard to define covariant Green functions, are discussed. It is shown that a proposed resolution involving an infinite set of gauge fields can be made mathematically rigourous in the classical case. We also give a brief demonstration of species doubling for chiral bosons.

hep-th↗