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Related papers: Round table on Standard Model Anomalies

200 papers

After a quick tour through the present status of the Standard Model, an attempt is made to set up a framework to discuss some presently available exotica, including $R_b$ and the CDF $ee\gamma\gamma+E_T\hskip-13pt/\ $ ``event."…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. Nanopoulos

We review Standard-Model evaluations of hadronic contributions to the muon anomalous magnetic moment $g-2$. Most space is devoted to the hadronic vacuum polarization contribution, in view of the discrepancy between the data-based dispersive…

High Energy Physics - Phenomenology · Physics 2022-08-23 Maarten Golterman

The Standard Model of particle physics encapsulates our current best understanding of physics at the smallest distances and highest energies. It incorporates Quantum Electrodynamics (the quantised version of Maxwell's electromagnetism) and…

High Energy Physics - Experiment · Physics 2016-09-28 Jon Butterworth

We generalize the Randall Sundrum warped braneworld model in six and higher dimension and propose a resolution to the mass hierarchy among the standard model fermions. The fine tuning problem in connection with the scalar mass however is…

High Energy Physics - Theory · Physics 2010-11-11 Soumitra SenGupta

The deviations of the recent measurements of the muon magnetic moment and the $W-$boson mass from their SM predictions hint to new physics beyond the SM. In this article, we address the observed discrepancies in the $W$-boson mass and muon…

High Energy Physics - Phenomenology · Physics 2025-01-03 Hrishabh Bharadwaj , Mamta Dahiya , Sukanta Dutta , Ashok Goyal

A new symmetry of $(1,0)$ supersymmetric non-linear $\sigma$-models in two dimensions with Fermi and mass sectors is introduced. It is a generalisation of the so-called special holonomy $W$-symmetry of Howe and Papadopoulos associated with…

High Energy Physics - Theory · Physics 2019-09-18 Xenia de la Ossa , Marc-Antoine Fiset

We analyse global anomalies and related constraints in the Standard Model (SM) and various Beyond the Standard Model (BSM) theories. We begin by considering four distinct, but equally valid, versions of the SM, in which the gauge group is…

High Energy Physics - Theory · Physics 2020-08-26 Joe Davighi , Ben Gripaios , Nakarin Lohitsiri

The construction of effective field theories describing M-theory compactified on $S^1/{\bf Z}_2$ is revisited, and new insights into the parameters of the theory are explained. Particularly, the web of constraints which follow from…

High Energy Physics - Theory · Physics 2007-05-23 Michael Faux

We review the theoretical and phenomenological aspects of the Next-to-Minimal Supersymmetric Standard Model: the Higgs sector including radiative corrections and the 2-loop beta-functions for all parameters of the general NMSSM; the tadpole…

High Energy Physics - Phenomenology · Physics 2011-09-08 Ulrich Ellwanger , Cyril Hugonie , Ana M. Teixeira

I review possible explanations of the muon g-2 anomaly in models with extended Higgs and matter sectors, focusing on extensions of the standard model and the two Higgs doublet model with vectorlike leptons. Predictions of these models,…

High Energy Physics - Phenomenology · Physics 2022-09-21 Radovan Dermisek

Updating various theoretical and experimental constraints on the four different types of two-Higgs-doublet models (2HDMs), we find that only the "lepton-specific" (or "type X") 2HDM can explain the present muon (g-2) anomaly in the…

High Energy Physics - Phenomenology · Physics 2015-05-05 Eung Jin Chun

A systematic program is developed for analyzing and cancelling local anomalies on networks of intersecting orbifold planes in the context of M-theory. Through a delicate balance of factors, it is discovered that local anomaly matching on…

High Energy Physics - Theory · Physics 2009-10-07 Michael Faux , Dieter Luest , Burt A. Ovrut

By using the recent nonperturbative equation of state of the quark gluon plasma derived in the formalism of the Field Correlator Method, we investigate the bulk properties of the strange quark matter in beta-equilibrium and with charge…

High Energy Physics - Phenomenology · Physics 2015-06-11 F. I. M. Pereira

We consider a flavour conserving two Higgs doublet model that consists of a type I (or X) quark sector and a generalized lepton sector where the Yukawa couplings of the charged leptons to the new scalars are not proportional to the lepton…

High Energy Physics - Phenomenology · Physics 2024-01-12 Francisco J. Botella , Fernando Cornet-Gomez , Carlos Miró , Miguel Nebot

We study theories with the exceptional gauge group G(2). The 14 adjoint "gluons" of a G(2) gauge theory transform as {3}, {3bar} and {8} under the subgroup SU(3), and hence have the color quantum numbers of ordinary quarks, anti-quarks and…

High Energy Physics - Lattice · Physics 2009-11-10 K. Holland , P. Minkowski , M. Pepe , U. -J. Wiese

We present a set of example models in which the Standard Model (SM) symmetry group is extended by a new abelian symmetry. This additional symmetry appears anomalous in the effective low-energy theory; however, the anomalies cancel out when…

High Energy Physics - Phenomenology · Physics 2024-07-30 Pascal Anastasopoulos , Ignatios Antoniadis , Karim Benakli , François Rondeau

We consider meson-baryon interactions in S-wave with strangeness -1. This is a sector populated by plenty of resonances interacting in several two-body coupled channels. We consider a large set of experimental data, where the recent…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jose A. Oller , Joaquim Prades , Michela Verbeni

We study the possibility of explaining the recently found anomalies in B-meson decays within scenarios with a composite Higgs boson. This class of models provides a natural way to fit the experimental results, interpreting the anomalies as…

High Energy Physics - Phenomenology · Physics 2017-05-31 Eugenio Megias , Giuliano Panico , Oriol Pujolas , Mariano Quiros

An analysis of the rare B decays $B\to K^{(*)}\nu\bar\nu$ is presented both within the SM and beyond. The SM predictions for the branching ratios are updated and uncertainties reduced. For the NP analysis both a model independent approach…

High Energy Physics - Phenomenology · Physics 2014-10-22 Jennifer Girrbach-Noe

The present work investigates the possibility that both dark matter and the anomalous magnetic moment of the muon may be explained within the context of the inverse seesaw extended Next-to-Minimal Supersymmetric Standard Model (ISS-NMSSM).…

High Energy Physics - Phenomenology · Physics 2020-05-12 Junjie Cao , Jingwei Lian , Lei Meng , Yuanfang Yue , Pengxuan Zhu