J. E. Elias
A5030001250- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Particle Accelerators and Free-Electron Lasers
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Nuclear Physics and Applications
- Nuclear physics research studies
- X-ray Spectroscopy and Fluorescence Analysis
- Cancer-related Molecular Pathways
- Microtubule and mitosis dynamics
- Mathematical Biology Tumor Growth
- Atomic and Subatomic Physics Research
- Evolutionary Game Theory and Cooperation
- Gene Regulatory Network Analysis
- Mathematical and Theoretical Epidemiology and Ecology Models
- DNA Repair Mechanisms
- Stochastic processes and statistical mechanics
- Distributed and Parallel Computing Systems
- Crystallography and Radiation Phenomena
- Protein Degradation and Inhibitors
University of Rochester
2025
Boehringer Ingelheim (Austria)
2023-2024
Czech Technical University in Prague
2021-2023
University of Graz
2017-2023
Czech Academy of Sciences, Institute of Mathematics
2021-2023
Czech Academy of Sciences
2021-2022
Czech Academy of Sciences, Institute of Physiology
2022
Nawi Graz
2021
Lavrentyev Institute of Hydrodynamics
2021
Graz University of Technology
2021
We present the results of a search for top quark in 19.3 pb−1 p¯p collisions at √s =1.8 TeV. The data were collected Fermilab Tevatron collider using Collider Detector (CDF). includes standard model tt¯ decays to final states eeνν¯, eμνν¯, and μμνν¯ as well e+ν+jets or μ+ν+jets. In (e,μ)+ν+jets channel we b quarks from t via secondary vertex identification semileptonic cascade c quarks. dilepton find two events with background 0.56+0.25−0.13 events. e,μ+ν+jets identified vertex, six 2.3±0.3....
We summarize a search for the top quark with Collider Detector at Fermilab (CDF) in sample of p¯p collisions √s =1.8 TeV an integrated luminosity 19.3 pb−1. find 12 events consistent either two W bosons, or boson and least one b jet. The probability that measured yield is background 0.26%. Though statistics are too limited to establish firmly existence quark, natural interpretation excess it due tt¯ production. Under this assumption, constrained fits individual mass 174±10+13−12 GeV/c2....
The production and event topology of three-jet events produced in p¯p collisions at √s=1.8 TeV have been studied with the Collider Detector Fermilab Tevatron Collider. distributions angular variables (ψ∗ cosθ∗) describing energy sharing between jets (x3 x4) are found to agree well tree-level QCD calculations. These predicted different shapes for initial-state subprocesses (quark-antiquark, quark-gluon, gluon-gluon). data consistent small expected contribution from quark-antiquark initial...
We have carried out an experimental study of the neutron and proton deep-inelastic electromagnetic structure functions. The functions were extracted from electron-proton electron-deuteron differential cross sections measured in three experiments spanning angles 6\ifmmode^\circ\else\textdegree\fi{}, 10\ifmmode^\circ\else\textdegree\fi{}, 15\ifmmode^\circ\else\textdegree\fi{}, 18\ifmmode^\circ\else\textdegree\fi{}, 19\ifmmode^\circ\else\textdegree\fi{}, 26\ifmmode^\circ\else\textdegree\fi{},...
The deep-inelastic electromagnetic structure functions of deuterium and aluminum nuclei have been measured. kinematic dependence the ratio is similar to steel functions, provides further evidence for distortion quark momentum distributions nucleons bound in a nucleus.
Inclusive J/\ensuremath{\psi} and \ensuremath{\psi}(2S) production has been studied in p\ifmmode\bar\else\textasciimacron\fi{}p collisions at \ensuremath{\surd}s =1.8 TeV using 2.6\ifmmode\pm\else\textpm\fi{}0.2 ${\mathrm{pb}}^{\mathrm{\ensuremath{-}}1}$ of data taken with the Collider Detector Fermilab. The products cross section times branching fraction were measured as functions ${\mathit{P}}_{\mathit{T}}$ for...
Data are presented on the inclusive production of ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$, ${K}^{\ifmmode\pm\else\textpm\fi{}}$, $p$, and $\overline{p}$ for ${\ensuremath{\pi}}^{+}$, ${K}^{+}$, protons incident nuclear targets at 100 GeV. The results cover kinematic range $30\ensuremath{\le}P\ensuremath{\le}88$ GeV/c ${P}_{t}=0.3 \mathrm{and} 0.5$ GeV/c. observed $A$ dependence invariant cross sections exhibits remarkable simplicity, which does not naturally follow from current...
We present measurements of the pseudorapidity (η) distribution charged particles (dNchdη) produced within |η|≤3.5 in proton-antiproton collisions at √s 630 and 1800 GeV. measure dNchdη η=0 to be 3.18±0.06(stat)±0.10(syst) GeV, 3.95±0.03 (stat)±0.13(syst) Many systematic errors ratio two energies cancel, we 1.26±0.01±0.04 for GeV that |η|≤3. Comparing lower-energy data, observe an increase faster than ln(s) η=0.Received 2 October 1989DOI:https://doi.org/10.1103/PhysRevD.41.2330©1990 American...
We report a measurement of the proton-antiproton total cross section ${\mathrm{\ensuremath{\sigma}}}_{\mathit{T}}$ at c.m.s. energies \ensuremath{\surd}s =546 and 1800 GeV. Using luminosity-independent method, we find ${\mathrm{\ensuremath{\sigma}}}_{\mathit{T}}$=61.26\ifmmode\pm\else\textpm\fi{}0.93 mb GeV 80.03\ifmmode\pm\else\textpm\fi{}2.24 =1800 In this energy range, ratio ${\mathrm{\ensuremath{\sigma}}}_{\mathrm{el}}$/${\mathrm{\ensuremath{\sigma}}}_{\mathit{T}}$ increases from...
Measurements of inclusive transverse-momentum spectra for charged particles produced in proton-antiproton collisions at √2 630 and 1800 GeV are presented compared with data taken lower energies.Received 8 June 1988DOI:https://doi.org/10.1103/PhysRevLett.61.1819©1988 American Physical Society
Kinematic properties of four-jet events produced in $p\overline{p}$ collisions at $\sqrt{s}=1.8$ TeV have been studied using data with an integrated luminosity 325 ${\mathrm{nb}}^{\ensuremath{-}1}$ collected the Collider Detector Fermilab during 1988-1989 run. The individual jet ${p}_{T}$ spectra and angles between each pair are compared to predictions leading-order quantum chromodynamics for double gluon bremsstrahlung process good agreement is observed. In addition, a search parton...
Measurements of cross sections for elastic electron-deuteron scattering were made over a range four-momentum transfers squared from 14.4 to 35.4 ${\mathrm{F}}^{\ensuremath{-}2}$. Incident electrons energies 4.419 and 4.910 BeV scattered liquid-deuterium target detected in coincidence with the recoil deuterons. combination charge electric quadrupole moment form factors obtained sections, detailed comparisons theoretical predictions based on wave functions derived nucleon-nucleon experiments....
Cross sections for inelastic scattering of electrons from hydrogen and deuterium were measured incident energies 4.5 to 18 GeV, at angles 18\ifmmode^\circ\else\textdegree\fi{}, 26\ifmmode^\circ\else\textdegree\fi{}, 34\ifmmode^\circ\else\textdegree\fi{}, covering a range squared four-momentum transfers up $20 {(\frac{\mathrm{GeV}}{c})}^{2}$. Neutron cross extracted the data using an impulse approximation. Comparisons with proton measurements show significant differences between neutron sections.
An experiment using the Fermilab Single Arm Spectrometer (SAS) facility and an associated nonmagnetic vertex detector studied reactions a+p→c+X, where a c were π±, K±, p, or p¯. Extensive measurements made at 100 175 GeV/c beam momenta with outgoing hadrons detected in SAS covering kinematic range 0.12<x<1.0 pT<1.25 GeV/c. Additional data more restricted x also gathered 70 incident momentum. In this high-statistics experiment, identification of both incoming charged total eight Čerenkov...
The space-time evolution of particle production at high energies was investigated by measuring the charged multiplicity in ${\ensuremath{\pi}}^{\ensuremath{-}}$-nucleus collisions 100 and 175 GeV/c. We find that (a) forward (in $\ensuremath{\pi}p$ center-of-mass system) is independent target nucleus; (b) backward approximately proportional to nuclear thickness; (c) data are consistent with assumption absorption cross section incident characterizes multiplication process.
Targeted protein degradation has recently emerged as a novel option in drug discovery. Natural half-life is expected to affect the efficacy of degrading agents, but what extent it influences target not been systematically explored. Using simple mathematical modeling degradation, we find that natural dramatic effect on level induced by degrader agent which can pose significant hurdles screening efforts. Moreover, show upon for degraders short-lived proteins, agents stall synthesis, such GSPT1...
A search for the top quark in p\ifmmode\bar\else\textasciimacron\fi{}p collisions at a center-of-mass energy of 1.8 TeV using Collider Detector Fermilab is described. study events selected by requiring an energetic electron, missing transverse energy, and two or more jets excludes 95% confidence level standard-model production decay tt\ifmmode\bar\else\textasciimacron\fi{} pairs if top-quark mass between 40 77 GeV/${c}^{2}$. The observed electron + multijet data are consistent with W-boson...
We have analyzed events with jets and large missing transverse energy produced in p¯p colisions at √s =1.8 TeV. The observed event rate is consistent standard model predictions. In a version of the supersymmetry (SUSY) light photino (mγ̃<15 GeV/c2) no cascade decays, we exclude 90% confidence level existence squarks gluinos masses less than 126 141 GeV/c2, respectively. mass limits are lower other choices SUSY parameters. An example presented.Received 17 August...
Antiproton-proton elastic scattering was measured at c.m.s. energies √s =546 and 1800 GeV in the range of four-momentum transfer squared 0.025<-t<0.29 GeV2. The data are well described by exponential form ebt with a slope b=15.28±0.58 (16.98±0.25) GeV−2 (1800) GeV. cross sections are, respectively, σel=12.87±0.30 19.70±0.85 mb.Received 5 August 1993DOI:https://doi.org/10.1103/PhysRevD.50.5518©1994 American Physical Society
We present results from searches for the top quark pp\ifmmode\bar\else\textasciimacron\fi{} collisions at Fermilab Tevatron Collider. The data sample was collected during 1988--89 with Collider Detector and has an integrated luminosity of 4.1 ${\mathrm{pb}}^{\mathrm{\ensuremath{-}}1}$. Our previous search e\ensuremath{\mu} final states tt\ifmmode\bar\else\textasciimacron\fi{}\ensuremath{\rightarrow}e\ensuremath{\nu}b \ensuremath{\mu}\ensuremath{\nu}b\ifmmode\bar\else\textasciimacron\fi{}...
We have determined mW=79.91±0.39 GeV/c2 from an analysis of W→eν and W→μν data the Collider Detector at Fermilab in p¯p collisions a c.m. energy √s =1.8 TeV. This result, together with world-average Z mass, determines weak mixing angle to be sin2θW=0.232±0.008. Bounds on top-quark mass are discussed.Received 13 August 1990DOI:https://doi.org/10.1103/PhysRevLett.65.2243©1990 American Physical Society
Hadron-nucleus interactions have been studied in the 50 to 200 GeV/c momentum range for incident pions, kaons, protons, and antiprotons. Average charged multiplicities, dispersions of multiplicity distributions, absorption cross sections, angular distributions are presented. The energy dependence target projectile fragmentation regions is detail.
The differential cross sections for the elastic scattering of π+, π−, K+, K−, p, and ¯p on protons have been measured in t interval -0.04 to -0.75 GeV2 at five momenta: 50, 70, 100, 140, 175 GeV/c. distributions parametrized by quadratic exponential form dσdt=Aexp(B∣∣t∣∣+C|t|2) energy dependence has described terms a single-pole Regge model. pp K+p diffraction peaks are found shrink with α′∼0.20 ∼0.15 GeV−2, respectively. ¯pp peak is antishrinking while π±p K−p relatively energy-independent....