A. Kachanovich

activity

20162025

most citedHiggs portal to dark matter and

B \to K^{(*)}

decays

24 citations · 46 across the 8 of their papers we have counts for

collaborators

9 papers

hep-ph2025

Exploring Background Contributions in $H \to Z γ$ Decay

Aliaksei Kachanovich

The rare decay $H \to Z γ$ has been investigated by both the ATLAS and CMS Collaborations, with each reporting an excess in Run~2 in 2023 characterized by $μ = 2.2 \pm 0.7$ . This ano…

hep-ph2025

On new physics off the Z peak in $H \to ℓ^{+} ℓ^{-} γ$

Aliaksei Kachanovich, Jean Kimus, Steven Lowette +1

Motivated by a small but intriguing excess observed in the decay mode $H \to ℓ^{+} ℓ^{-} γ$ reported by both the ATLAS and CMS collaborations, we explore the possibility t…

hep-ph2025

Background processes in Higgs decay to Z gamma

Aliaksei Kachanovich

The ATLAS and CMS Collaborations reported that the observed number of Higgs boson decays into a $Z$ boson and a photon is $μ = 2.2 \pm 0.7$ times higher than predicted by the Standa…

hep-ph2024

Revisiting the Higgs Boson Decay into a Photon and a Neutrino Pair

Aliaksei Kachanovich, Ivan Nišandžić

We present new calculations of the leading-order one-loop amplitude and the decay rate for $H \to ν ν ˉ γ$ within the standard model, employing reduction to a set of basic Passarin…

hep-ph2022★ 8 cited

Dark SU(2) Stueckelberg portal

Valery E. Lyubovitskij, Alexey S. Zhevlakov, Aliaksei Kachanovich +1

We study the non-abelian $S U (2)_{D}$ extension of the $U (1)_{D}$ Stueckelberg portal, which plays a role of the mediator between the Standard Model (SM) and Dark Sector (DS). This port…

hep-ph2021★ 13 cited

Higgs decay into a lepton pair and a photon: a roadmap to $H \to Z γ$ discovery and probes of new physics

Aliaksei Kachanovich, Ulrich Nierste, Ivan Nišandžić

The decay $H \to ℓ^{+} ℓ^{-} γ$ , $ℓ = e, μ$ , receives contributions from $H \to Z [\to ℓ^{+} ℓ^{-}] γ$ and a non-resonant contribution, both of which are loop-induced. We describe h…

hep-ph2020

Higgs decay into two leptons and a photon revisited

Aliaksei Kachanovich

I present new results for the Standard-Model predictions of the differential decay rates for $H \to ℓ^{+} ℓ^{-} γ$ , where $ℓ = e, μ$ , and the forward-backward asymmetries def…

hep-ph2020★ 24 cited

Higgs portal to dark matter and $B \to K^{(*)}$ decays

Aliaksei Kachanovich, Ulrich Nierste, Ivan Nišandžić

We consider a Higgs portal model in which the 125-GeV Higgs boson mixes with a light singlet mediator $h_{2}$ coupling to particles of a Dark Sector and study potential $b \to s h_{2}$ …

hep-ph2016★ 1 cited

Nonlocal quark model description of a composite Higgs particle

Aliaksei Kachanovich, David Blaschke

We propose a description of the Higgs boson as top-antitop quark bound state within a nonlocal relativistic quark model of Nambu - Jona-Lasinio type. In contrast to model with loca…

Exploring Background Contributions in H→Zγ Decay

On new physics off the Z peak in H→ℓ+ℓ−γ

Background processes in Higgs decay to Z gamma

Revisiting the Higgs Boson Decay into a Photon and a Neutrino Pair

Dark SU(2) Stueckelberg portal

Higgs decay into a lepton pair and a photon: a roadmap to H→Zγ discovery and probes of new physics

Higgs decay into two leptons and a photon revisited

Higgs portal to dark matter and B→K(∗) decays

Nonlocal quark model description of a composite Higgs particle

Exploring Background Contributions in $H \to Z γ$ Decay

On new physics off the Z peak in $H \to ℓ^{+} ℓ^{-} γ$

Higgs decay into a lepton pair and a photon: a roadmap to $H \to Z γ$ discovery and probes of new physics

Higgs portal to dark matter and $B \to K^{(*)}$ decays