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Warped Extra Dimension scenarios are a rich playground for phenomenology of heavy resonances at LHC. The Radion and the KK-graviton are inevitable signatures of this class of models. On face of the latest LHC experimental results on the…

High Energy Physics - Phenomenology · Physics 2018-04-13 Alexandra Carvalho

We consider the H to gamma gamma decay process and the gluon fusion production of a light Higgs, and provide a general framework for testing models of new physics beyond the Standard Model. We apply our parametrisation to typical models…

High Energy Physics - Phenomenology · Physics 2010-01-05 Giacomo Cacciapaglia , Aldo Deandrea , Jeremie Llodra-Perez

We describe a simple connection between the Froggatt-Nielsen, Stueckelberg and Higgs mechanisms, all three of them combined in a consistent way. This is illustrated in the context of a class of generalizations of the Standard Model with a…

High Energy Physics - Phenomenology · Physics 2007-05-23 Claudio Coriano , Nikos Irges

This article reviews and updates the Standard Model prediction of the muon g-2. QED, electroweak and hadronic contributions are presented, and open questions discussed. The theoretical prediction deviates from the present experimental value…

High Energy Physics - Phenomenology · Physics 2009-07-09 M. Passera

Following the Hamiltonian structure of bi-gravity and multi-gravity models in the full phase space, we have constructed the generating functional of diffeomorphism gauge symmetry. As is expected, this generator is constructed from the first…

High Energy Physics - Theory · Physics 2021-04-07 Ali Dokhani , Zahra Molaee , Ahmad Shirzad

We describe a way to construct supergravity models with an arbitrary inflaton potential V ({\phi}) and show that all other scalar fields in this class of models can be stabilized at the inflationary trajectory by a proper choice of the…

High Energy Physics - Theory · Physics 2011-02-18 Renata Kallosh , Andrei Linde , Tomas Rube

We describe how non-minimal coupling term between the Higgs boson and gravity can lead to the chaotic inflation in the Standard Model without introduction of any additional degrees of freedom. Produced cosmological perturbations are…

High Energy Physics - Phenomenology · Physics 2008-05-16 F. L. Bezrukov

The algebraic elements of gravitational and Standard Model gauge fields acting on a generation of fermions may be represented using real matrices. These elements match a subalgebra of spin(11,3) acting on a Majorana-Weyl spinor, consistent…

General Relativity and Quantum Cosmology · Physics 2010-06-28 A. Garrett Lisi

It is shown that the expressions for the tangential pressure, the anisotropy factor and the radial pressure in the Einstein - Maxwell equations may serve as generating functions for charged stellar models. The latter can incorporate an…

General Relativity and Quantum Cosmology · Physics 2021-03-31 B. V. Ivanov

Gravity is now understood to become simple on-shell. We sketch how it becomes simple also off-shell, when reformulated appropriately. Thus, we describe a simple Lagrangian for gravitons that makes use of a certain complex of differential…

High Energy Physics - Theory · Physics 2015-01-26 Kirill Krasnov

We reconsider the Enriques Calabi Yau (FHSV) model and its string derivation and argue that the Octonionic magic supergravity theory admits a string interpretation closely related to the Enriques model. The uplift to D=6 of the Octonionic…

High Energy Physics - Theory · Physics 2009-12-10 Massimo Bianchi , Sergio Ferrara

We study the phenomenology of a Standard Model (SM) extension with two charged singlet scalars and three right handed (RH) neutrinos at an electron-positron collider. In this model, the neutrino mass is generated radiatively at three-loop,…

High Energy Physics - Phenomenology · Physics 2014-05-13 Amine Ahriche , Salah Nasri , Rachik Soualah

In this article we consider the Standard Model extended by a number of (light) right-handed neutrinos, and assume the presence of some heavy physics that cannot be directly produced, but can be probed by its low-energy effective…

High Energy Physics - Phenomenology · Physics 2016-09-28 Subhaditya Bhattacharya , José Wudka

We would like to discuss the language to write an extended Standard Model - using renormalizable quantum field theory as the framework; to start with certain basic units together with a certain gauge group. Specifically we use the…

High Energy Physics - Phenomenology · Physics 2013-04-15 W-Y. Pauchy Hwang , Tung-Mow Yan

We consider (1+4) generalization of classical electrodynamics including gravitation field. With this approach it is assumed a presence of an extra component of extended field stress tensor, whose physical interpretation is based on…

General Relativity and Quantum Cosmology · Physics 2007-05-23 D. Yu. Tsipenyuk , W. B. Belayev

In the Standard Model, some combination of the baryon $\bf B$ and lepton $\bf L$ number symmetry is free of mixed anomalies with strong and electroweak $su(3) \times su(2) \times u(1)_{\tilde Y}$ gauge forces. However, it can still suffer…

High Energy Physics - Theory · Physics 2024-12-30 Pavel Putrov , Juven Wang

General Relativity (GR) exists in different formulations, which are equivalent in pure gravity. Once matter is included, however, observable predictions generically depend on the version of GR. In order to quantify the resulting ambiguity,…

General Relativity and Quantum Cosmology · Physics 2024-01-04 Claire Rigouzzo , Sebastian Zell

Some basic properties of isobar models are discussed using the Saclay-Lyon, Kaon-MAID, and H2 models and a comparison of their predictions with experimental data is given for photo- and electroproduction of $K^+$ on the proton and for…

Nuclear Theory · Physics 2013-11-04 Petr Bydzovsky , Dalibor Skoupil

We argue that the Higgs boson of the Standard Model can lead to inflation and produce cosmological perturbations in accordance with observations. An essential requirement is the non-minimal coupling of the Higgs scalar field to gravity; no…

High Energy Physics - Theory · Physics 2008-11-26 F. L. Bezrukov , M. E. Shaposhnikov

Demonstrating the split octonion formalism for unified fields of dyons (electromagnetic fields) and gravito-dyons (gravito-Heavisidian fields of linear gravity), relevant field equations are derived in compact, simpler and manifestly…

High Energy Physics - Theory · Physics 2008-11-26 P. S. Bisht , Shalini Dangwal , O. P. S. Negi