169 citations · 825 across the 27 of their papers we have counts for
28 papers
HiggsTools for LHC Run 3 and Beyond
Henning Bahl, Thomas Biekötter, Sven Heinemeyer +2
HiggsTools, including the subpackages HiggsPredictions, HiggsBounds, and HiggsSignals, is a toolbox for Beyond-the-SM (BSM) scalar phenomenology at the LHC. It provides BSM model p…
Perturbative aspects of the electroweak phase transition with a complex singlet and implications for gravitational wave predictions
Thomas Biekötter, Andrii Dashko, Maximilian Löschner +1
We present a detailed analysis of strong first-order electroweak phase transitions within the extension of the Standard Model by a complex scalar singlet (cxSM). Focusing on the im…
Towards a Unified Framework for Pseudo-Nambu-Goldstone Dark Matter and Electroweak Baryogenesis
Thomas Biekötter, Pedro Gabriel, Milada Margarete Mühlleitner +1
We propose the complex singlet-extended 2-Higgs-Doublet Model (cS2HDM), a spin-0 Dark Matter (DM) model with a Higgs sector consisting of two Higgs doublets and a complex singlet,…
The Linear Collider Facility (LCF) at CERN
H. Abramowicz, E. Adli, F. Alharthi +406
In this paper we outline a proposal for a Linear Collider Facility as the next flagship project for CERN. It offers the opportunity for a timely, cost-effective and staged construc…
A Linear Collider Vision for the Future of Particle Physics
H. Abramowicz, E. Adli, F. Alharthi +446
In this paper we review the physics opportunities at linear colliders with a special focus on high centre-of-mass energies and beam polarisation, take a fresh look at the…
Top-quark spin correlations as a tool to distinguish pseudoscalar and scalar signatures in final states at the LHC
Francisco Arco, Thomas Biekötter, Panagiotis Stylianou +1
Both ATLAS and CMS have recently performed the first searches for a heavy new spin-0 resonance decaying into a lighter new spin-0 resonance and a boson, where the lighter spin-…
ALP-ine quests at the LHC: hunting axion-like particles via peaks and dips in production
Afiq Anuar, Anke Biekötter, Thomas Biekötter +5
We present an analysis of the sensitivity of current and future LHC searches for new spin-0 particles in top-anti-top-quark () final states, focusing on generic axion-lik…
Impact of New Experimental Data on the C2HDM: the Strong Interdependence between LHC Higgs Data and the Electron EDM
Thomas Biekötter, Duarte Fontes, Margarete Mühlleitner +3
The complex two-Higgs doublet model (C2HDM) is one of the simplest extensions of the Standard Model with a source of CP-violation in the scalar sector. It has a symm…
2HDM interpretations of the CMS diphoton excess at 95 GeV
Duarte Azevedo, Thomas Biekötter, P. M. Ferreira
In both Run 1 and Run 2 of the LHC, the CMS collaboration has observed an excess of events in the searches for low-mass Higgs bosons in the diphoton final state at a mass of about…
The 95.4 GeV di-photon excess at ATLAS and CMS
T. Biekötter, S. Heinemeyer, G. Weiglein
The ATLAS collaboration has recently reported the results of a low-mass Higgs-boson search in the di-photon final state based on the full Run 2 data set. The results are based on a…
Scalar extensions of the SM and recent experimental anomalies
Thomas Biekötter
The Brout-Englert-Higgs mechanism describes the generation of masses of fundamental particles in the Standard Model (SM). It predicts the existence of one scalar particle with prec…
The CMS di-photon excess at 95 GeV in view of the LHC Run 2 results
T. Biekötter, S. Heinemeyer, G. Weiglein
The CMS collaboration has recently reported the results of a low-mass Higgs-boson search in the di-photon final state based on the full Run 2 data set with refined analysis techniq…
HiggsTools: BSM scalar phenomenology with new versions of HiggsBounds and HiggsSignals
Henning Bahl, Thomas Biekötter, Sven Heinemeyer +4
The codes HiggsBounds and HiggsSignals compare model predictions of BSM models with extended scalar sectors to searches for additional scalars and to measurements of the detected H…
The trap in the early Universe: impact on the interplay between gravitational waves and LHC physics in the 2HDM
Thomas Biekötter, Sven Heinemeyer, José Miguel No +2
We analyze the thermal history of the 2HDM and determine the parameter regions featuring a first-order electroweak phase transition (FOEWPT) and also much less studied phenomena li…
Higgs-boson visible and invisible constraints on hidden sectors
Thomas Biekötter, Mathias Pierre
We investigate the impact of interactions between hidden sectors and the discovered Higgs boson , allowing for additional invisible decay channels of . We perform…
Direct detection of pseudo-Nambu-Goldstone dark matter in a two Higgs doublet plus singlet extension of the SM
Thomas Biekötter, Pedro Gabriel, María Olalla Olea-Romacho +1
We calculate the leading radiative corrections to the dark-matter-nucleon scattering in the pseudo-Nambu-Goldstone dark matter model augmented with a second Higgs doublet (S2HDM).…
Excesses in the low-mass Higgs-boson search and the W-boson mass measurement
Thomas Biekötter, Sven Heinemeyer, Georg Weiglein
The CDF collaboration recently reported a measurement of the -bosos mass, , showing a large positive deviation from the Standard Model (SM) prediction. The question arises…
Mounting evidence for a 95 GeV Higgs boson
Thomas Biekötter, Sven Heinemeyer, Georg Weiglein
In 2018 CMS reported an excess in the light Higgs-boson search in the diphoton decay mode at about 95GeV based on Run 1 and first year Run 2 data. The combined local significance o…
Vacuum (meta-)stability in the SSM
Thomas Biekötter, Sven Heinemeyer, Georg Weiglein
We perform an analysis of the vacuum stability of the neutral scalar potential of the -from- Supersymmetric Standard Model (SSM). As an example scenario, we discuss the a…
Possible indications for new Higgs bosons in the reach of the LHC: N2HDM and NMSSM interpretations
Thomas Biekötter, Alexander Grohsjean, Sven Heinemeyer +2
In several searches for additional Higgs bosons at the LHC, in particular in a CMS search exploring decays to pairs of top quarks, , and in an ATLAS search studying tau l…
Reconciling Higgs physics and pseudo-Nambu-Goldstone dark matter in the S2HDM using a genetic algorithm
Thomas Biekötter, María Olalla Olea
We investigate a possible realization of pseudo-Nambu-Goldstone (pNG) dark matter in the framework of a singlet-extended 2 Higgs doublet model (S2HDM). pNG dark matter gained attra…
Higgs-mass predictions in the MSSM and beyond
P. Slavich, S. Heinemeyer, E. Bagnaschi +36
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. T…
munuSSM: A python package for the -from- Supersymmetric Standard Model
Thomas Biekötter
We present the public python package munuSSM that can be used for phenomenological studies in the context of the -from- Supersymmetric Standard Model (SSM). The code inco…
The "96 GeV excess" at the LHC
T. Biekötter, M. Chakraborti, S. Heinemeyer
The CMS collaboration reported an intriguing \sim 3 sigma (local) excess at 96 GeV in the light Higgs-boson search in the diphoton decay mode. This mass coincides with a \sim 2 sig…