Publications (29)
Sensitivity of the SHiP experiment to dark photons decaying to a pair of charged particles
SHiP Collaboration, C. Ahdida, A. Akmete +331
Dark photons are hypothetical massive vector particles that could mix with ordinary photons. The simplest theoretical model is fully characterised by only two parameters: the mass…
Vector-Like Leptons and Inert Scalar Triplet: Lepton Flavor Violation, and Collider Searches
A. S. de Jesus, S. Kovalenko, F. S. Queiroz +2
We investigate simplified models involving an inert scalar triplet and vector-like leptons that can account for the muon anomaly. These simplified scenarios are embedded in a…
Lie symmetry properties of nonlinear reaction-diffusion equations with gradient-dependent diffusivity
R. Cherniha, J. R. King, S. Kovalenko
Complete descriptions of the Lie symmetries of a class of nonlinear reaction-diffusion equations with gradient-dependent diffusivity in one and two space dimensions are obtained. A…
The active muon shield in the SHiP experiment
SHiP collaboration, A. Akmete, A. Alexandrov +229
The SHiP experiment is designed to search for very weakly interacting particles beyond the Standard Model which are produced in a 400 GeV/c proton beam dump at the CERN SPS. An ess…
Longitudinal vector form factors in weak decays of nuclei
F. Simkovic, S. Kovalenko, M. I. Krivoruchenko
The longitudinal form factors of the weak vector current of particles with spin and isospin are determined by the mass difference and the charge radii of me…
Selected aspects of the condensed matter physics. Work and life of Professor B.Ya. Sukharevsky
V. V. Eremenko, V. G. Manzhely, V. N. Varyukhin +31
The paper contains a short description of the scientific papers of Professor Boris Ya. Sukharevsky on condensed matter physics. His basic scientific activity was related to followi…
Lepton Phenomenology of Stueckelberg Portal to Dark Sector
A. Kachanovich, S. Kovalenko, S. Kuleshov +2
We propose an extension of the Standard Model (SM) with a gauge invariant dark dector connected to the SM via a new portal -- the Stueckelberg portal, arising in the fr…
Quark condensate seesaw mechanism for neutrino mass
A. BabiÄ, S. Kovalenko, M. I. Krivoruchenko +1
We study a mechanism of generation of Majorana neutrino mass due to spontaneous breaking of chiral symmetry (SBCS) accompanied by the formation of a quark condensate. The effect of…
Status and initial physics performance studies of the MPD experiment at NICA
MPD Collaboration, V. Abgaryan, R. Acevedo Kado +470
The Nuclotron-base Ion Collider fAcility (NICA) is under construction at the Joint Institute for Nuclear Research (JINR), with commissioning of the facility expected in late 2022.…
On the Role of LHC and HL-LHC in Constraining Flavor Changing Neutral Currents
S. Kovalenko, A. S. de Jesus, A. R. Zerwekh +5
The Standard Model (SM) has no flavor-changing neutral current (FCNC) processes at the tree level. Therefore, processes featuring FCNC in new physics are tightly constrained by dat…
Proceedings of the 2nd Workshop on Flavor Symmetries and Consequences in Accelerators and Cosmology (FLASY12)
I. de Medeiros Varzielas, C. Hambrock, G. Hiller +66
These are the proceedings of the 2nd Workshop on Flavor Symmetries and Consequences in Accelerators and Cosmology, held 30 June 2012 - 4 July 2012, Dortmund, Germany.
A facility to Search for Hidden Particles (SHiP) at the CERN SPS
SHiP Collaboration, M. Anelli, S. Aoki +233
A new general purpose fixed target facility is proposed at the CERN SPS accelerator which is aimed at exploring the domain of hidden particles and make measurements with tau neutri…
SND@LHC
SHiP Collaboration, C. Ahdida, A. Akmete +341
We propose to build and operate a detector that, for the first time, will measure the process at the LHC and search for feebly interacting particles (FIPs) in an unexplo…
Neutrino Oscillations and R-parity Violating Supersymmetry
O. Haug, J. D. Vergados, Amand Faessler +1
Using the neutrino oscillations and neutrinoless double beta decay experimental data we reconstructed an upper limit for the three generation neutrino mass matrix. We compared this…
Flavor changing interactions confronted with meson mixing and hadron colliders
A. E. Cárcamo Hernández, L. Duarte, A. S. de Jesus +5
We have witnessed some flavor anomalies appeared in the past years, and explanations based on extended gauge sectors are among the most popular solutions. These beyond the Standard…
Extended Black Box Theorem for Lepton Number and Flavor Violating processes
M. Hirsch, S. Kovalenko, I. Schmidt
We revisit the well known "Black Box" theorem establishing a fundamental relation between the amplitude of neutrinoless double beta decay and the effective Majorana neutrino mass.…
Abnormally large changes in anharmonicity of intramolecular vibrations in free clusters of nitrogen
O. Danylchenko, Yu. Doronin, S. Kovalenko +3
Cathodoluminescence VUV spectra of free pure nitrogen clusters produced by condensation of gas mixtures in supersonic jets expanding into vacuum were studied. The clusters were of…
Hunting down the X17 boson at the CERN SPS
E. Depero, Yu. M. Andreev, D. Banerjee +53
Recently, the ATOMKI experiment has reported new evidence for the excess of events with a mass 17 MeV in the nuclear transitions of He, that they previously obs…
Sterile neutrinos in neutrinoless double beta decay
P. Benes, Amand Faessler, S. Kovalenko +1
We study possible contribution of the Majorana neutrino mass eigenstate dominated by a sterile neutrino component to neutrinoless double beta () decay. From the cur…
Fermion masses and mixings in an grand unified model with an extra flavor symmetry
Miguel D. Campos, A. E. Cárcamo Hernández, S. Kovalenko +2
We propose a model based on the grand unification with an extra flavor…
Neutrino mediated muon--electron conversion in nuclei revisited
F. Simkovic, V. E. Lyubovitskij, Th. Gutsche +2
The non-photonic neutrino exchange mechanism of the lepton flavor violating muon-electron conversion in nuclei is revisited. First we determine the nucleon coupling constants for t…
A Layer Correlation technique for pion energy calibration at the 2004 ATLAS Combined Beam Test
E. Abat, J. M. Abdallah, T. N. Addy +482
A new method for calibrating the hadron response of a segmented calorimeter is developed and successfully applied to beam test data. It is based on a principal component analysis o…
Improved exclusion limit for light dark matter from annihilation in NA64
Yu. Andreev, D. Banerjee, J. Bernhard +55
The current most stringent constraints for the existence of sub-GeV dark matter coupling to Standard Model via a massive vector boson were set by the NA64 experiment for…
Neutrino propagation in nuclear medium and neutrinoless double-beta decay
S. Kovalenko, M. I. Krivoruchenko, F. Simkovic
We discuss a novel effect in neutrinoless double beta (0νββ) decay related with the fact that its underlying mechanisms take place in the nuclear matter environment. We study th…
The Impact of Helium Exposure on the PMTs of the SuperNEMO Experiment
SuperNEMO Collaboration, X. Aguerre, A. S. Barabash +76
The performance of Hamamatsu 8" photomultiplier tubes (PMTs) of the type used in the SuperNEMO neutrinoless double-beta decay experiment (R5912-MOD), is investigated as a function…
Constraining 3-3-1 Models at the LHC and Future Hadron Colliders
A. Alves, L. Duarte, S. Kovalenko +3
In this work, we derive lower mass bounds on the Z' gauge boson based on the dilepton data from LHC with 13 TeV of center-of-mass energy, and forecast the sensitivity of the High-L…
Neutrino accompanied beta^-beta^-, beta^+beta^+, beta^+/EC and EC/EC processes within single state dominance hypothesis
P. Domin, S. Kovalenko, F. Simkovic +1
The systematic study of (anti-)neutrino accompanied beta^-beta^-, beta^+beta^+ decays and beta^+/EC, EC/EC electron captures is performed under the assumption of single intermediat…
The interpolating formula for the -decay half-life in the case of light and heavy neutrino mass mechanisms
A. BabiÄ, S. Kovalenko, M. I. Krivoruchenko +1
We revisit the "interpolating formula" proposed in our previous publication. It allows one to calculate the neutrinoless double beta decay (-decay) half-life for arbitrary…
Production and Integration of the ATLAS Insertable B-Layer
B. Abbott, J. Albert, F. Alberti +373
During the shutdown of the CERN Large Hadron Collider in 2013-2014, an additional pixel layer was installed between the existing Pixel detector of the ATLAS experiment and a new, s…