Integral Functionals of the Gasser–Muller Regression Function

For integral functionals of the Gasser–Muller regression function and its derivatives, we consider the plug-in estimator. The consistency and asymptotic normality of the estimator are shown.Для інтегральних функцiоналiв Функції регресії Гассера-Мюллера та їх похідних розглядається оцінка, що підключається. Встановлено обґрунтованість та асимптотичну нормальність цієї оцінки

TileCal TDAQ/DCS communication

This document describes the communication between the TDAQ and DCS systems of the Hadronic Tile Calorimeter detector of the ATLAS experiment, currently under commissioning phase at CERN. It is a further step on the TDAQ and DCS communication for TileCal operation. The aim of the implementation is to increase the robustness and understanding of the detector from the two systems involved. The basic principle observed is that the two systems operate independently in parallel. Hence, the knowledge of the status of the whole detector from each of the two systems is required for further analysis of the archived data

A mobile data acquisition system

A mobile data aquisition (MobiDAQ) was developed for the ATLAS central hadronic calorimeter (TileCal). MobiDAQ has been designed in order to test the functionalities of the TileCal front-end electronics and to acquire calibration data before the final back-end electronics were built and tested. MobiDAQ was also used to record the first cosmic ray events acquired by an ATLAS subdetector in the underground experimental area

Production of (super)heavy quarkonia and new Higgs physics at hadron colliders

Based on the two Higgs doublet model, we study the effect of Higgs-boson exchange on the (super)heavy quarkonium \bar QQ, which induces a strong attractive force between a (super)heavy quark Q and an antiquark \bar Q. An interesting application is the decay of (super)heavy quarkonia \bar QQ into a Higgs boson associated with gauge bosons. The criterion for making the \bar QQ bound state is studied. We also show that non-perturbative effects due to gluonic field fluctuations are rather small in such a heavy quark sector. Possible enhancement for productions and decays of \bar QQ bound states made from the fourth generation quark Q is discussed for \bar p p (at the Tevatron) and pp (at the LHC) collisions.Comment: 18 pages, REVTeX, 9 figures. V2: minor changes, references and acknowledgments adde

In-hospital results of therapy with the NGLT-2 inhibitor dapagliflozin in patients with acute decompensation of heart failure: prospective randomized study

BACKGROUND: This study focuses on the development of new approaches to the management of patients with acute decompensation of heart failure (ADHF) using sodium-glucose cotransporter type 2 (iHLT-2) inhibitors, particularly dapagliflozin, and its role in early treatment initiation. AIM: Our aim was to determine the predictors of severe ADHF outcomes in patients with low left ventricular ejection fraction (LVEF) and the role of early initiation of iGLT-2 therapy (within the first 24 h). MATERIALS AND METHODS: This prospective randomized study included a total of 140 patients hospitalized with ADHF between January 1 to September 1, 2023. The patients were randomized into two groups: in group 1, iGLT-2 therapy was started within 24 h from the moment of admission (n=70), and in group 2, standard therapy was implemented (n=70). Hospital data were analyzed. The endpoint was the persistence of congestion in one or both circulatory circuits with New York Heart Association Functional Classes III–IV, indicating severe ADHF. RESULTS: The initial demographic and clinical characteristics of both groups were comparable. In both groups 47% patients did not receive optimal drug therapy (excluding iGLT-2) for chronic heart failure, and no differences were found in this indicator (p=0.081). iGLT-2 therapy did not demonstrate a significant effect on the likelihood of an adverse ADHF outcome (odds ratio [OR]=0.88; 95% confidence interval [CI] 0.43–1.78, p=0.719). Multivariate analysis showed an increase in the probability of this outcome for every 1000 pg/mL increase in N-terminal propeptide of brain natriuretic hormone (NT-proBNP) (OR=1.72, 95% CI 1.37–2.17; p 0.001), blood urea per 1 mmol/L (OR=1.54, 95% CI 1.21–1.97; p=0.001), pulmonary hypertension (OR=7.08, 95% CI 2.15–23.34; p=0.001), and a decrease in the probability of outcome with a 1% increase in LVEF (OR=0.91, 95% CI 0.84–0.99; p=0.031). The sensitivity and specificity of the adverse outcome model were 91.3 and 85.1%, respectively. CONCLUSION: The leading predictors of an unfavorable ADHF outcome include increased levels of NT-proBNP and blood urea, pulmonary hypertension, and decreased LVEF

Z boson production in Pb+Pb collisions at √Snn = 5.02 TeV measured by the ATLAS experiment

The production yield of Z bosons is measured in the electron and muon decay channels in Pb+Pb collisions at √S = 5.02 TeV with the ATLAS detector. Data from the 2015 LHC run corresponding to an integrated luminosity of 0.49 nb are used for the analysis. The Z boson yield, normalised by the total number of minimum-bias events and the mean nuclear thickness function, is measured as a function of dilepton rapidity and event centrality. The measurements in Pb+Pb collisions are compared with similar measurements made in proton-proton collisions at the same centre-of-mass energy. The nuclear modification factor is found to be consistent with unity for all centrality intervals. The results are compared with theoretical predictions obtained at next-to-leading order using nucleon and nuclear parton distribution functions. The normalised Z boson yields in Pb+Pb collisions lie 1-3σ above the predictions. The nuclear modification factor measured as a function of rapidity agrees with unity and is consistent with a next-to-leading-order QCD calculation including the isospin effect. nn -

Search for flavour-changing neutral currents in processes with one top quark and a photon using 81 fb−1 of pp collisions at s=13TeV with the ATLAS experiment

A search for flavour-changing neutral current (FCNC) events via the coupling of a top quark, a photon, and an up or charm quark is presented using 81 fb−1 of proton–proton collision data taken at a centre-of-mass energy of 13 TeV with the ATLAS detector at the LHC. Events with a photon, an electron or muon, a b-tagged jet, and missing transverse momentum are selected. A neural network based on kinematic variables differentiates between events from signal and background processes. The data are consistent with the background-only hypothesis, and limits are set on the strength of the tqγ coupling in an effective field theory. These are also interpreted as 95% CL upper limits on the cross section for FCNC tγ production via a left-handed (right-handed) tuγ coupling of 36 fb (78 fb) and on the branching ratio for t→γu of 2.8×10−5 (6.1×10−5). In addition, they are interpreted as 95% CL upper limits on the cross section for FCNC tγ production via a left-handed (right-handed) tcγ coupling of 40 fb (33 fb) and on the branching ratio for t→γc of 22×10−5 (18×10−5)

Measurement of Azimuthal Anisotropy of Muons from Charm and Bottom Hadrons in pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector.

The elliptic flow of muons from the decay of charm and bottom hadrons is measured in pp collisions at sqrt[s]=13  TeV using a data sample with an integrated luminosity of 150  pb^{-1} recorded by the ATLAS detector at the LHC. The muons from heavy-flavor decay are separated from light-hadron decay muons using momentum imbalance between the tracking and muon spectrometers. The heavy-flavor decay muons are further separated into those from charm decay and those from bottom decay using the distance-of-closest-approach to the collision vertex. The measurement is performed for muons in the transverse momentum range 4-7 GeV and pseudorapidity range |η|<2.4. A significant nonzero elliptic anisotropy coefficient v_{2} is observed for muons from charm decays, while the v_{2} value for muons from bottom decays is consistent with zero within uncertainties