-
Article
Open AccessImproved calorimetric particle identification in NA62 using machine learning techniques
Measurement of the ultra-rare K + → ...
-
Article
Open AccessA study of the K+ → π0e+νγ decay
A sample of 1.3 × 105 K+ → π0e+νγ candidates with less than 1% background was collected by the NA62 experiment at the CERN SPS in 2017–2018. Branching fraction measurements are obtained at percent relative precis...
-
Article
Open AccessAddendum to: A measurement of the K+ → π+μ+μ− decay
-
Article
Open AccessPerformance of the NA62 trigger system
The NA62 experiment at CERN targets the measurement of the ultra-rare K + ...
-
Article
Open AccessA measurement of the K+ → π+μ+μ− decay
A sample of 2.8 × 104 K+ → π+μ+μ− candidates with negligible background was collected by the NA62 experiment at the CERN SPS in 2017–2018. The model-independent branching fraction is measured to be (9.15 ± 0.08) ...
-
Article
Open AccessMeasurement of the very rare K+ → \( {\pi}^{+}\nu \overline{\nu} \) decay
The NA62 experiment reports the branching ratio measurement BR ...
-
Article
Open AccessSearch for a feebly interacting particle X in the decay K+ → π+X
A search for the K+ → π+X decay, where X is a long-lived feebly interacting particle, is performed through an interpretation of the K+ → ...
-
Article
Open AccessSearch for π0 decays to invisible particles
The NA62 experiment at the CERN SPS reports a study of a sample of 4 × 109 tagged π0 mesons from K+ → π+π0(γ), searching for the decay of the π0 to invisible particles. No signal is observed in excess of the expe...
-
Chapter and Conference Paper
Brain Cognitive Architectures Map** for Neurosurgery: Resting-State fMRI and Intraoperative Validation
Despite the importance of experimental confirmation, the ability of wide range of brain map** methods to discover brain cognitive architectures in most studies can’t be evaluated directly. Only in rare cases...
-
Article
Open AccessAn investigation of the very rare \( {K}^{+}\to {\pi}^{+}\nu \overline{\nu} \) decay
The NA62 experiment reports an investigation of the K + ...
-
Article
Open AccessSearch for production of an invisible dark photon in π0 decays
The results of a search for π0 decays to a photon and an invisible massive dark photon at the NA62 experiment at the CERN SPS are reported. From a total of 4.12 × 108 tagged π0 mesons, no signal is observed. Assu...
-
Article
Study of the Microstructure, Crystallographic Structure and Thermal Stability of Al–Ti–Nb Alloys Produced by Selective Electron Beam Alloying
This paper aims an investigation of the microstructure and crystallographic structure as well as the thermal stability of Al–Ti–Nb formed by selective electron beam surface alloying. The fabrication of the sam...
-
Article
Application of magnetic methods for assessment of soil restoration in the vicinity of metallurgical copper-processing plant in Bulgaria
Copper ore mining and processing are among the most harmful anthropogenic influences for the environment and they are a subject of international and national law regulations. Recultivation of areas influenced ...
-
Article
Study into the properties of TiN/WN multilayer nanocoatings prepared via magnetron sputtering
Titanium-nitride (TiN) and tungsten-nitride (WN) thin films with a layer thickness of 6 nm, which are obtained via magnetron sputtering on silicon substrates, are studied. The structural and mechanical propert...
-
Article
Dachiardite-K, (K2Ca)(Al4Si20O48) · 13H2O, a new zeolite from Eastern Rhodopes, Bulgaria
Dachiardite-K (IMA No. 2015-041), a new zeolite, is a K-dominant member of the dachiardite series with the idealized formula (К2Са)(Al4Si20O48) · 13H2О. It occurs in the walls of opal–chalcedony veinlets cutting ...
-
Article
Application of neutron stress diffractometry for studies of residual stresses and microstrains in reactor pressure vessel surveillance specimens reconstituted by beam welding methods
The high-resolution neutron-diffraction technique is used to determine the residual stresses and microstrains in unirradiated reactor pressure vessel surveillance specimens reconstituted by means of different ...
-
Article
Open AccessJ/ψ production and nuclear effects in p-Pb collisions at \( \sqrt{{{{\mathrm{s}}_{\mathrm{NN}}}}} \) = 5.02 TeV
Inclusive J/ψ production has been studied with the ALICE detector in p-Pb collisions at the nucleon-nucleon center of mass energy $ \s...
-
Article
Open AccessEnergy dependence of the transverse momentum distributions of charged particles in pp collisions measured by ALICE
Differential cross sections of charged particles in inelastic pp collisions as a function of p T have been measured at $\sqrt{...
-
Article
Open AccessCharmonium and e + e − pair photoproduction at mid-rapidity in ultra-peripheral Pb–Pb collisions at \(\sqrt{s_{\mathrm{NN}}} = 2.76\ \mbox{TeV}\)
The ALICE Collaboration at the LHC has measured the J/ψ and ψ′ photoproduction at mid-rapidity in ultra-peripheral Pb–Pb collisions at $\sqrt{...
-
Article
Open AccessMultiplicity dependence of two-particle azimuthal correlations in pp collisions at the LHC
We present the measurements of particle pair yields per trigger particle obtained from di-hadron azimuthal correlations in pp collisions at $ ...
