7 research outputs found
Развитие системы метрологического обеспечения в области вакуумных измерений: на примере ВНИИМ им. Д. И. Менделеева
No full textThe article deals with issues related to the improvement of the metrological support system in the field of vacuum measurements in the works of D. I. Mendeleyev Institute for Metrology (VNIIM). The relevance of vacuum technology and vacuum measurements for the industry of the Russian Federation is substantiated. The author shows the trends and strategies that dominate in this area in a historical retrospective. The main stages and results of theoretical and practical research work in the field of vacuum measurements carried out at the D. I. Mendeleyev Institute for Metrology (VNIIM) in recent years are described. It is emphasized that in the scientific community of the Russian Federation and D. I. Mendeleyev Institute for Metrology (VNIIM) there is a huge heuristic potential and a solid material base that allow us to expect the latest progressive approaches and solutions in the field of metrological support of vacuum measurementsВ статье рассмотрены вопросы, связанные с совершенствованием системы метрологического обеспечения в области вакуумных измерений в работах ФГУП «ВНИИМ им. Д. И. Менделеева». Обосновывается актуальность и востребованность вакуумной техники и вакуумных измерений для промышленности Российской Федерации. Автор показывает в исторической ретроспективе, какие тенденции и стратегии доминировали в данной области. Изложены основные этапы и результаты теоретических и практических научно-исследовательских работ в области вакуумных измерений, проведённых во ФГУП «ВНИИМ им. Д. И. Менделеева» за последнее время. Подчеркивается, что в научном сообществе Российской Федерации и ФГУП «ВНИИМ им. Д. И. Менделеева» существует колоссальный эвристический потенциал и солидная материальная база, которые позволяют ожидать новейших прогрессивных подходов и решений в области метрологического обеспечения вакуумных измерений
Perspectives from twenty-two countries on the legal environment for selection.
No full text(from the chapter) To compare and contrast the legal environment for personnel selection in various countries, the senior author prepared a set of questions about the legal environment for selection, prepared model answers describing the legal environment in the United States, and contacted psychologists in various countries, asking them to prepare a document responding to each question and describing the legal environment in their country. They were also invited to suggest additional project participants in other countries. Some invitees declined; some initially agreed, but subsequently did not participate. The goal was to obtain a range of perspectives by sampling about 20 countries, thus, this is by no means a complete catalog of the legal environment around the world. Researchers and practitioners who are experts on the topic of selection participated from 22 countries
Erratum to: Observation of the B+ → Jψη′K+ decay
No full textIn the original article, information related to the author list has been corrected. The originally published wrong file has been replaced online
Erratum to: Observation of the B + → Jψη ′ K + decay (Journal of High Energy Physics, (2023), 2023, 8, (174), 10.1007/JHEP08(2023)174)
No full textIn the original article, information related to the author list has been corrected. The originally published wrong fle has been replaced online
Colliding and Fixed Target Mode in a Single Experiment—A Novel Approach to Study the Matter under New Extreme Conditions
No full textHere, we propose a novel approach to experimentally and theoretically study the properties of QCD matter under new extreme conditions, namely having an initial temperature over 300 MeV and baryonic charge density over three times the values of the normal nuclear density. According to contemporary theoretical knowledge, such conditions were not accessible during the early Universe evolution and are not accessible now in the known astrophysical phenomena. To achieve these new extreme conditions, we proposed performing high-luminosity experiments at LHC or other colliders by means of scattering the two colliding beams at the nuclei of a solid target that is fixed at their interaction region. Under plausible assumptions, we estimate the reaction rate for the p+C+p and Pb+Pb+Pb reactions and discuss the energy deposition into the target and possible types of fixed targets for such reactions. To simulate the triple nuclear collisions, we employed the well-known UrQMD 3.4 model for the beam center-of-mass collision energies sNN = 2.76 TeV. As a result of our modeling, we found that, in the most central and simultaneous triple nuclear collisions, the initial baryonic charge density is approximately three times higher than the one achieved in the ordinary binary nuclear collisions at this energy
Updated perspectives on the international legal environment for selection
No full textTo compare and contrast the legal environment for selection in various countries, the senior author prepared a set of questions about the legal environment for selection, prepared model answers describing the legal environment in the United States, and contacted psychologists in various countries, asking them to prepare a document describing the legal environment in their countries. The goal was to obtain a range of perspectives by sampling about 20 countries. Furthermore, there continues to be occupational segregation to some extent in all countries surveyed, and women are still more likely to join the workforce as part-time workers in many countries. Research examining gender differences in selection constructs and tools was also scarce in most countries, and research investigating group differences in job performance was virtually nonexistent outside of the US Language, culture, and differences in educational access and attainment are seen as key concerns in understanding differences in test scores across groups
Publisher Erratum: Long-lived particle reconstruction downstream of the LHCb magnet (Eur. Phys. J. C, (2025), 85, (7), 10.1140/epjc/s10052-024-13686-6)
No full textThe original HTML-version of this article was revised. A number of typographical and editorial details were incorrectly implemented, and the Data and Code Availability Statements were wrongly given. In the abstract, line 11, the Λ symbol was boldfaced while it should have been. In page 1 there were two instances of the symbol “PP”, towards the end of the left column and the beginning of the right column, which should have been “pp”, without capitalization. At the beginning of Section 3, end of page 2 and beginning of page 3, the paragraph starting as “First, Long tracks..” and finishing with “muon chambers” was with indentation, and should not have been. In addition, it was starting as a new paragraph while it should have been started right after “in Fig. 1.”. Moreover, all sentences in this paragraph were starting with a line break while should not be. Overall, the paragraph should read as follows: “..as illustrated in Fig. 1. Long tracks traverse the full tracking system. They include hits in both the VELO and the T1–T3 stations, and optionally in TT (UT in the upgraded detector). Upstream tracks traverse only the VELO and the TT (UT) stations. They are typically produced by low momentum particles, which are bent away by the magnetic field, thus failing to reach the T1–T3 stations. Downstream tracks traverse both the TT (UT) and T1–T3 stations, but do not leave any hit in the VELO. They typically belong to decay products of long-lived particles decaying beyond the VELO, such as Λ or KS0 hadrons. VELO tracks have hits only in the VELO. They include large-angle or backward tracks, useful for the determination of the PV, as well as very low momentum tracks. T tracks have hits only in the T1–T3 stations. Similarly to Downstream tracks, they include the decay products of long-lived particles decaying far away from the PV, up to several metres. A significant fraction of tracks reconstructed in this category comes from secondary interactions with the material of the mechanical structures and back-scattering particles coming from the calorimeters and hadron shield behind the muon chambers.” In page 3, right column, line 13, “layer” should have been “layers”. In page 4, left column, lines 5–6, the J/ψ→μ+μ- decay descriptor was broken in two lines and should have been in a single line. In several places in the HTML-version the Λ and Λb0 particles were written using incorrect fonts, with the Λ symbol boldfaced and the b subscript slanted, while they both should have not been. The text justification in the caption of Figs. 13 and 22 was left and should have been full. Several figure captions used incorrect fonts for denoting the particles, inconsistently with the fonts in the main text. For example, in Fig. 2: π+π- and ψ in J/ψ were slanted and should not be; the subscripts S for KS0 and b for Λb were also slanted and should not be; the Λ symbol denoting the Λ and Λb particles were boldfaced and should not be. Captions of Figs. 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 and 27 are also affected. The Data Availability Statement in page 19 was “Data will be made available on reasonable request. [Author’s comment: The datasets generated during the current study are available from the corresponding author on reasonable request.].” and should have been “The LHCb experiment has agreed to the CERN open data policy summarised in https://opendata.cern.ch/docs/about. In particular, Level 1 data associated with this publication are made available on the CERN document server at http://cds.cern.ch/record/2908392/files/. These data contain material related to the paper that allows a reinterpretation of the results in the context of new theoretical models.” The Code Availability Statement in page 19 was “Code/software cannot be made available for reasons disclosed in the code availability statement. [Author’s comment: The code/software generated during the current study is not publicly available but is available from the corresponding author on reasonable request.].” and should have been “Specific analysis software/code used to produce the results shown in the publication is preserved within the LHCb collaboration internally and can be provided on reasonable request, provided it does not contain information that can be associated with unpublished results.” The original article has been corrected and the publisher apologizes for the inconvenience caused
