English
Related papers

Related papers: Toward global fits using Higgs STXS data with Lili…

200 papers

The Two-Higgs-doublet model (2HDM) is one of the most studied extensions of the Standard Model. Like the other popular "New Physics" models, it gets more and more constrained by recent experimental progress, especially by the LHC data. For…

High Energy Physics - Phenomenology · Physics 2017-09-28 Otto Eberhardt

We present up-to-date constraints on a generic Higgs parameter space. An accurate assessment of these exclusions must take into account statistical, and potentially signal, fluctuations in the data currently taken at the LHC. For this, we…

High Energy Physics - Phenomenology · Physics 2015-06-04 Aleksandr Azatov , Roberto Contino , Jamison Galloway

Precise measurements of SM particles properties at the LHC allows to look for heavy New Physics in the context of an Effective Field Theory (EFT). These searches, however, often rely on kinematic regions where the validity of the EFT may be…

High Energy Physics - Phenomenology · Physics 2015-09-16 Martin Gorbahn , Jose Miguel No , Veronica Sanz

We discuss the role that Higgs coupling measurements can play in differentiating supersymmetric extensions of the Standard Model. Fitting current LHC data to the Higgs couplings, we find that the likelihood fit shows a preference in the…

High Energy Physics - Phenomenology · Physics 2013-03-11 Aleksandr Azatov , Spencer Chang , Nathaniel Craig , Jamison Galloway

We report the first results from our comprehensive lattice tool set to explore non-perturbative aspects of Higgs physics in the Standard Model. We demonstrate in Higgs-Yukawa models that Higgs mass lower bounds and upper bounds can be…

High Energy Physics - Lattice · Physics 2009-04-14 Zoltan Fodor , Kieran Holland , Julius Kuti , Daniel Nogradi , Chris Schroeder

One of the most popular extensions of the Standard Model is the Two-Higgs-Doublet model (2HDM), in which a second Higgs doublet is added to the conventional Standard Model particle content. 2HDM's with a softly broken $\mathbb{Z}_2$…

High Energy Physics - Phenomenology · Physics 2018-09-14 Otto Eberhardt

We perform a global fit to Higgs signal-strength data in the context of light stops in Natural SUSY. In this case, the Wilson coefficients of the higher dimensional operators mediating g g -> h and h -> \gamma \gamma, given by c_g,…

High Energy Physics - Phenomenology · Physics 2015-06-05 José R. Espinosa , Christophe Grojean , Verónica Sanz , Michael Trott

Probing the properties of the discovered Higgs boson may tell us whether or not it is the same particle as the one predicted by the Standard Model. To this aim we parametrize deviations of the Higgs couplings to matter from the Standard…

High Energy Physics - Phenomenology · Physics 2016-02-22 Hermes Belusca-Maito

Data gridding is a common task in astronomy and many other science disciplines. It refers to the resampling of irregularly sampled data to a regular grid. We present cygrid, a library module for the general purpose programming language…

Instrumentation and Methods for Astrophysics · Physics 2016-06-08 B. Winkel , D. Lenz , L. Flöer

Predictions for the Higgs masses are a distinctive feature of supersymmetric extensions of the Standard Model, where they play a crucial role in constraining the parameter space. The discovery of a Higgs boson and the remarkably precise…

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

Libpsht (or "library for Performant Spherical Harmonic Transforms") is a collection of algorithms for efficient conversion between spatial-domain and spectral-domain representations of data defined on the sphere. The package supports…

Instrumentation and Methods for Astrophysics · Physics 2011-01-11 Martin Reinecke

Astronomical data is often uncertain with errors that are heteroscedastic (different for each data point) and covariant between different dimensions. Assuming that a set of D-dimensional data points can be described by a (D - 1)-dimensional…

Instrumentation and Methods for Astrophysics · Physics 2015-10-21 A. S. G. Robotham , D. Obreschkow

We present preliminary results of the first convergent global fits of several minimal composite Higgs models. Our fits are performed using the differential evolution optimisation package $\texttt{Diver}$. A variety of physical constraints…

High Energy Physics - Phenomenology · Physics 2021-02-03 Ethan Carragher , Daniel Murnane , Peter Stangl , Wei Su , Martin White , Anthony G. Williams

SModelS is an automatized tool enabling the fast interpretation of simplified model results from the LHC within any model of new physics respecting a $\mathbb{Z}_2$ symmetry. In this contribution, we report on two important updates of…

Following recent ATLAS and CMS publications we interpret the results of their Higgs searches in terms of Standard Model operators. For a Higgs mass of 125 GeV we determine several Higgs couplings from 2011 data and extrapolate the results…

High Energy Physics - Phenomenology · Physics 2013-05-30 Markus Klute , Remi Lafaye , Tilman Plehn , Michael Rauch , Dirk Zerwas

Recent data on 125 GeV Higgs-like boson at the LHC starts to constrain the electroweak symmetry breaking sector of the SM and its various extensions. If one imposes the local gauge symmetry of the Standard Model (SM) ($SU(3)_c \times…

High Energy Physics - Phenomenology · Physics 2015-06-16 Suyong Choi , Sunghoon Jung , P. Ko

We consider the Higgs boson decay processes and its production, and provide a parameterisation tailored for testing models of new physics beyond the Standard Model. We also compare our formalism to other existing parameterisations based on…

High Energy Physics - Phenomenology · Physics 2015-06-11 Giacomo Cacciapaglia , Aldo Deandrea , Guillaume Drieu La Rochelle , Jean-Baptiste Flament

In this work, we present preliminary results of a global fit of the type-II two-Higgs-doublet model (2HDM) with the tool $\texttt{GAMBIT}$. Our study includes various constraints, including the theoretical constraints (unitarity,…

High Energy Physics - Phenomenology · Physics 2022-06-01 Filip Rajec , Wei Su , Martin White , Anthony G. Williams

We consider the Higgs boson decay processes and its production and provide a parameterisation tailored for testing models of new physics. The choice of a particular parameterisation depends on a non-obvious balance of quantity and quality…

High Energy Physics - Phenomenology · Physics 2013-05-07 Guillaume Drieu La Rochelle