96 citations · 970 across the 41 of their papers we have counts for
39 papers · 1 filter
Improved cosmological constraints on axion-lepton interactions
Marcin Badziak, Adam Gomułka, Maxim Laletin +1
We present updated cosmological constraints on axion-lepton interactions based on state-of-the-art computations of the thermal axion abundance. By combining Planck Cosmic Microwave…
Electroweak symmetry non-restoration and suppressed dark radiation in Supersymmetric Twin Higgs model
Marcin Badziak, Keisuke Harigaya, Ignacy Nałęcz
We investigate a possibility of electroweak symmetry non-restoration (SNR) below the Twin electroweak scale (TeV) within the Twin Higgs model. We focus on supersymmetric exte…
Precise predictions for the QCD axion contribution to dark radiation with full phase-space evolution
Marcin Badziak, Maxim Laletin
We compute the QCD axion contribution to the energy density of dark radiation, parameterized by , by solving Boltzmann equations for the momentum distribution functio…
Thermal production of astrophobic axions
Marcin Badziak, Keisuke Harigaya, Michał Łukawski +1
Hot axions are produced in the early Universe via their interactions with Standard Model particles, contributing to dark radiation commonly parameterized as . In s…
Naturally astrophobic QCD axion
Marcin Badziak, Keisuke Harigaya
We present a QCD axion model where the couplings of the axion to nucleons, electrons, and muons are naturally suppressed because of the appropriate choice of the Peccei-Quinn charg…
First-order phase transitions in Twin Higgs models
Marcin Badziak, Ignacy Nałęcz
We revisit phase transitions in Twin Higgs (TH) models. We show that strong first-order phase transitions (FOPTs) can occur provided that appropriate source of symme…
Charged Dark Matter in Supersymmetric Twin Higgs models
Marcin Badziak, Giovanni Grilli di Cortona, Keisuke Harigaya +1
Supersymmetric Twin Higgs models ameliorate the fine-tuning of the electroweak scale originating from the heavy scalar top partners required by the non-discovery of them at the Lar…
Flavor-Violating Higgs Decays and Stellar Cooling Anomalies in Axion Models
Marcin Badziak, Giovanni Grilli di Cortona, Mustafa Tabet +1
We study a class of DFSZ-like models for the QCD axion that can address observed anomalies in stellar cooling. Stringent constraints from SN1987A and neutron stars are avoided by s…
Natural Twin Neutralino Dark Matter
Marcin Badziak, Giovanni Grilli di Cortona, Keisuke Harigaya
Supersymmetric Twin Higgs models have a discrete symmetry for which each Standard Model particle and its supersymmetric partner have a corresponding state that transforms under a m…
Explanation of electron and muon g-2 anomalies in the MSSM
Marcin Badziak, Kazuki Sakurai
The current experimental values of anomalous magnetic moments of muon and electron deviate from the Standard Model predictions by few standard deviations, which might be a hint of…
Natural supersymmetric Twin Higgs
Marcin Badziak, Keisuke Harigaya
A new class of supersymmetric Twin Higgs (TH) models where new gauge symmetry is responsible for the TH mechanism is reviewed. In this class of models the Higgs mass is naturally i…
Extended Gauge Mediation in the NMSSM with Displaced LHC Signals
Marcin Badziak, Nishita Desai, Cyril Hugonie +1
We analyze models of extended Gauge Mediation in the context of the NMSSM, concentrating on supersymmetric spectra with light gluinos, low fine-tuning and decays of the lightest ne…
Impact of an extra gauge interaction on naturalness of supersymmetry
Marcin Badziak, Keisuke Harigaya
It is pointed out that in supersymmetric models with a new gauge symmetry under which the Higgs is charged, the fine-tuning of the electroweak symmetry breaking is relaxed due to s…
Asymptotically Free Natural SUSY Twin Higgs
Marcin Badziak, Keisuke Harigaya
Twin Higgs (TH) models explain the absence of new colored particles responsible for natural electroweak symmetry breaking (EWSB). All known ultraviolet completions of TH models req…
Minimal Non-Abelian Supersymmetric Twin Higgs
Marcin Badziak, Keisuke Harigaya
We propose a minimal supersymmetric Twin Higgs model that can accommodate tuning of the electroweak scale for heavy stops better than 10% with high mediation scales of supersymmetr…
Spin-dependent constraints on blind spots for thermal singlino-higgsino dark matter with(out) light singlets
Marcin Badziak, Marek Olechowski, Paweł Szczerbiak
The LUX experiment has recently set very strong constraints on spin-independent interactions of WIMP with nuclei. These null results can be accommodated in NMSSM provided that the…
Supersymmetric D-term Twin Higgs
Marcin Badziak, Keisuke Harigaya
We propose a new type of supersymmetric Twin Higgs model where the SU(4) invariant quartic term is provided by a D-term potential of a new U(1) gauge symmetry. In the model the 125…
Is well-tempered neutralino in MSSM still alive after 2016 LUX results?
Marcin Badziak, Marek Olechowski, Paweł Szczerbiak
It is pointed out that a bino-dominated well-tempered bino-higgsino in the Minimal Supersymmetric Standard Model (MSSM) with heavy non-SM- like scalars can satisfy the 2016 LUX con…
Enhanced Higgs associated production with a top quark pair in the NMSSM with light singlets
Marcin Badziak, Carlos E. M. Wagner
Precision measurements of the 125 GeV Higgs resonance recently discovered at the LHC have determined that its properties are similar to the ones of the Standard Model (SM) Higgs bo…
Interpreting 750 GeV Diphoton Excess in Plain NMSSM
Marcin Badziak, Marek Olechowski, Stefan Pokorski +1
NMSSM has enough ingredients to explain the diphoton excess at 750 GeV: singlet-like (pseudo) scalar () and higgsinos as heavy vector-like fermions. We consider the producti…
Enhancing the Higgs associated production with a top quark pair
Marcin Badziak, Carlos E. M. Wagner
It is pointed out that in a wide class of models reminiscent of type-II Two-Higgs-Doublet Models (2HDM) the signal of the Higgs produced in association with a top-antitop quark pai…
Blind spots for neutralinos in NMSSM with light singlet scalar
M. Badziak, M. Olechowski, P. Szczerbiak
A substantial contribution to the SM-like Higgs mass may come from the mixing with the lightest singlet-dominated scalar in NMSSM for moderate or large values of [1]. The L…
Suppressing gravitino thermal production with a temperature-dependent messenger coupling
Marcin Badziak, Ioannis Dalianis, Zygmunt Lalak
We show that the constraints on GMSB theories from the gravitino cosmology can be significantly relaxed if the messenger-spurion coupling is temperature dependent. We demonstrate t…
Interpreting the 750 GeV diphoton excess in minimal extensions of Two-Higgs-Doublet models
Marcin Badziak
It is shown that the 750 GeV diphoton excess can be explained in extensions of Two-Higgs-Doublet Models that do not involve large multiplicities of new electromagnetically charged…