81 citations · 240 across the 14 of their papers we have counts for
15 papers
Only slightly "Amplifying nonresonant production of dark sector particles in scattering dominance regime''
S. V. Demidov, D. S. Gorbunov, A. L. Polonski
In recent article [PhysRevD.109.055041 (2024)] it has been argued that production of dark photons -- hypothetical massive vectors -- in nuclear reactors via mixing with the visible…
The Forward Physics Facility at the High-Luminosity LHC
Jonathan L. Feng, Felix Kling, Mary Hall Reno +233
High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large number of particles along the beam collision axis, outside of the acceptance of existing L…
Sgoldstino signal at FASER: prospects in searches for supersymmetry
Sergey Demidov, Dmitry Gorbunov, Dmitry Kalashnikov
We investigate FASER@LHC perspectives in searches for light ( GeV) sgoldstinos in models with low energy ( TeV) supersymmetry breaking. We consider flavor conservin…
No Miracle in Gravity Portals
Fedor Bezrukov, Sergey Demidov, Dmitry Gorbunov
The idea of dark matter particles coupled only gravitationally is minimalist yet viable. Assuming an additional -breaking linear coupling of scalar curvature to the dark matte…
Sgoldstino signature in , and spectra at the LHC
S. Demidov, D. Gorbunov, E. Kriukova
In a supersymmetric extension of the Standard Model of particle physics (SM) with low scale of supersymmetry breaking, sgoldstino of (sub)TeV mass can be observed at the Large Hadr…
Constraints on hidden photons produced in nuclear reactors
Mikhail Danilov, Sergey Demidov, Dmitry Gorbunov
New light vector particles - hidden photons - are present in many extensions of the Standard Model of particle physics. They can be produced in nuclear reactors and registered by n…
Low scale supersymmetry at the LHC with jet and missing energy signature
S. V. Demidov, I. V. Sobolev
If supersymmetry is broken at TeV scale, particles from sector responsible for supersymmetry breaking - goldstino and sgoldstinos - can reveal themselves already at the LHC experim…
Split NMSSM with electroweak baryogenesis
S. V. Demidov, D. S. Gorbunov, D. V. Kirpichnikov
In light of the Higgs boson discovery we reconsider generation of the baryon asymmetry in the non-minimal split Supersymmetry model with an additional singlet superfield in the Hig…
On sgoldstino interpretation of the diphoton excess
S. V. Demidov, D. S. Gorbunov
We point out that the diphoton excess at about 750 GeV recently discovered by the LHC experiments can be explained within supersymmetric models with low scale supersymmetry breakin…
Sgoldstino-Higgs mixing in models with low-scale supersymmetry breaking
K. O. Astapov, S. V. Demidov
We consider a supersymmetric extension of the Standard Model with low-scale supersymmetry breaking. Besides usual superpartners it contains additional chiral goldstino supermultipl…
Collider signatures of Hylogenesis
S. V. Demidov, D. S. Gorbunov, D. V. Kirpichnikov
We consider collider signatures of the hylogenesis --- a variant of antibaryonic dark matter model. We obtain bounds on the model parameters from results of the first LHC run. Also…
SUSY in the sky or a keV signature of sub-GeV gravitino dark matter
S. V. Demidov, D. S. Gorbunov
We point out that recently discovered 3.5 keV line in X-ray spectra from various galaxy clusters and the Andromeda galaxy can be naturally explained by physics of a sector responsi…
Flavor violating processes with sgoldstino pair production
S. V. Demidov, D. S. Gorbunov
In supersymmetric extensions of the Standard Model of particle physics (SM), goldstino superpartners --- scalar and pseudoscalar sgoldstinos --- can be light enough for emerging in…
More about sgoldstino interpretation of HyperCP events
S. V. Demidov, D. S. Gorbunov
We further discuss possible sgoldstino interpretation of the observation, reported by the HyperCP collaboration, of three Σ^+\to pμ^+μ^- decay events with dimuon invariant mass 214…
LHC prospects in searches for neutral scalars in pp\toγγ+jet: SM Higgs boson, radion, sgoldstino
S. V. Demidov, D. S. Gorbunov
At hadron colliders the channel provides larger signal-to-background ratio in comparison with inclusive channel in hunting for scalars uncharged under the SM gauge gr…