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We perform global fits within Standard Model Effective Field Theory (SMEFT) combining top-quark pair production processes and decay with $b\rightarrow s$ flavor changing neutral current transitions and $Z \to b \bar b$ in three stages:…

High Energy Physics - Phenomenology · Physics 2021-06-16 Stefan Bißmann , Cornelius Grunwald , Gudrun Hiller , Kevin Kröninger

We present results from SMEFiT3.0, a global SMEFT fit of Higgs, top quark, and diboson production data from the LHC. Our updated analysis includes recent inclusive and differential measurements from the LHC Run II, together with the exact…

High Energy Physics - Phenomenology · Physics 2026-02-04 Eugenia Celada

The standard model of particle physics is an extremely successful theory of fundamental interactions, but it has many known limitations. It is therefore widely believed to be an effective field theory that describes interactions near the…

High Energy Physics - Experiment · Physics 2019-02-04 Salvatore Rappoccio

For a long time, the minimal supersymmetric standard model (MSSM) with light masses for the supersymmetric states was considered as the most natural extension of the Standard Model of particle physics. Consequently, a valid approximation…

High Energy Physics - Phenomenology · Physics 2017-05-30 Florian Staub , Werner Porod

The lack of experimental evidence at the LHC for physics beyond the Standard model (BSM) of elementary particles together with necessity of its existence to provide solutions of internal problems of the Standard model (SM) as well as of…

High Energy Physics - Phenomenology · Physics 2019-11-11 Maxim Yu. Khlopov

In these lectures I survey the state of supersymmetric extensions of the Standard Model in light of data from the first run of the LHC. After assessing pre-LHC expectations based on principles of naturalness and parsimony, I review the…

High Energy Physics - Phenomenology · Physics 2014-01-10 Nathaniel Craig

A descriptive summary is given of the results to-date from the framed standard model (FSM) which: (i) assigns geometric meaning to the Higgs field and to fermion generations, hence offering an explanation for the observed mass and mixing…

High Energy Physics - Phenomenology · Physics 2019-01-30 José BORDES , CHAN Hong-Mo , TSOU Sheung Tsun

We present a framework for carrying out global analyses of the Standard Model Effective Field Theory: SMEFiT. This approach is based on the Monte Carlo replica method, widely used in the case of NNPDF fits of the proton structure, for…

High Energy Physics - Phenomenology · Physics 2019-05-15 Emma Slade

The successful operation of the {\em Large Hadron Collider} (LHC) during the past two years allowed to explore particle interaction in a new energy regime. Measurements of important Standard Model processes like the production of high-\pt\…

High Energy Physics - Experiment · Physics 2012-07-02 Karl Jakobs

Employing the framework of the Standard Model Effective Field Theory, we perform a detailed reinterpretation of measurements of the Weinberg angle in dilepton production as a search for new-physics effects. We truncate our signal prediction…

High Energy Physics - Phenomenology · Physics 2019-09-04 Stefan Alte , Matthias König , William Shepherd

We analyze the constraints obtainable from present data using the Standard Model Effective Field Theory (SMEFT) on extensions of the Standard Model with additional electroweak singlet or triplet scalar fields. We compare results obtained…

High Energy Physics - Phenomenology · Physics 2023-04-14 John Ellis , Ken Mimasu , Francesca Zampedri

At the Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN), protons and heavy ions are accelerated to velocities close to the speed of light and collided in order to study particle interactions and give us…

High Energy Physics - Experiment · Physics 2019-05-16 Jory Sonneveld

The Standard Model (SM) of particle physics provides a very successful description of fundamental particles and their interactions but it is incomplete, as neutrino masses, dark matter and the baryon asymmetry of the Universe indicate. In…

With the discovery of the Higgs, we have access to a plethora of new physical processes that allow us to further test the SM and beyond. We show a convenient way to parametrize these physics using an effective theory for Higgs couplings,…

High Energy Physics - Phenomenology · Physics 2015-01-08 Alex Pomarol

Extensions of the Standard Model (SM) of Particle Physics can be probed either through precision measurements of SM observables or via direct searches for processes beyond the SM (BSM). This proceeding focuses on precision measurements in…

High Energy Physics - Experiment · Physics 2026-05-12 Felicia Volle

The discovery of a light Higgs boson means that whatever form new physics takes, it should keep stable the Higgs mass. Besides the well-known solutions to the naturalness problem (Supersymmetry, Conformal symmetry, Compositeness, etc),…

High Energy Physics - Phenomenology · Physics 2023-09-06 J. Lorenzo Diaz-Cruz

We consider the Higgs sector in extensions of the Minimal Supersymmetric Standard Model by higher-dimension operators in the superpotential and the K\"ahler potential, in the context of Higgs searches at the LHC 7 TeV run. Such an effective…

High Energy Physics - Phenomenology · Physics 2013-05-30 Marcela Carena , Eduardo Ponton , Jose Zurita

After the discovery of the Higgs boson at the LHC, it is natural to start the research program on the precision study of the Higgs-boson couplings to various standard model (SM) particles. We provide a generic framework for the deviations…

High Energy Physics - Phenomenology · Physics 2015-06-15 Kingman Cheung , Jae Sik Lee , Po-Yan Tseng

Precision observables are well known for constraining most of the Beyond Standard Model (BSM) scenarios tightly. We present here a simple and comprehensive fitting framework for various BSM scenarios to these observables. We start with the…

High Energy Physics - Phenomenology · Physics 2023-05-24 Mathew Thomas Arun , Kuldeep Deka , Tripurari Srivastava

Higgs physics beyond the Standard Model (SM) is presented in the context of an underlying strong dynamics of electroweak symmetry breaking (EWSB) as given by composite Higgs models. Subsequently, the study of New Physics (NP) effects in a…

High Energy Physics - Phenomenology · Physics 2015-01-06 M. Muhlleitner