Repozitář publikační činnosti UK: Poslední příspěvky

Zobrazují se záznamy 421-440 z 1761

    • STUDY OF DEFECTS IN TiO2 POLYMORPHS USING POSITRON ANNIHILATION 

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      Melikhova, Oksana

      ;

      Čížek, Jakub

      ;

      Prokop, Dejan

      ;

      Lukáč, František

      2024

      ,

      Acta Physica Polonica B, Proceedings Supplement

      ,

      17

      (7)

      This work presents a comparative study of point defects in three TiO2 polymorphs: anatase, rutile, and brookite. Open volume point defects were characterized using the positron annihilation spectroscopy combined with ab ...

    • Study of Mechanisms of Positronium Formation on Metal Surfaces 

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      Čížek, Jakub

      ;

      Melikhova, Oksana

      2024

      ,

      Acta Physica Polonica A

      ,

      146

      (5)

      A magnetically guided variable-energy slow-positron beam was used to investigate the formation of positronium on untreated metal surfaces by measuring the annihilation ratio of 37 to 27. The results indicated that positronium ...

    • Search for a vector-like quark T′→ tH via the diphoton decay mode of the Higgs boson in proton-proton collisions at √s=13 TeV 

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      omezený přístup

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      Tumasyan, A.

      ;

      Adam, W.

      ;

      Andrejkovic, J.W.

      ;

      Bergauer, T.

      ;

      Finger, Miroslav

      ;

      Finger, Michael

      ;

      Květoň, Antonín

      2023

      ,

      Journal of High Energy Physics

      ,

      neuveden

      (09)

      A search for the electroweak production of a vector-like quark T, decaying to a top quark and a Higgs boson is presented. The search is based on a sample of proton-proton collision events recorded at the LHC at root s = ...

    • First measurement of the top quark pair production cross section in proton-proton collisions at √s=13.6 TeV 

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      Tumasyan, A.

      ;

      Adam, W.

      ;

      Andrejkovic, J.W.

      ;

      Bergauer, T.

      ;

      Finger, Miroslav

      ;

      Finger, Michael

      ;

      Květoň, Antonín

      2023

      ,

      Journal of High Energy Physics

      ,

      neuveden

      (08)

      The first measurement of the top quark pair (t (t) over bar) production cross section in proton-proton collisions at root s = 13.6TeV is presented. Data recorded with the CMS detector at the CERN LHC in Summer 2022, ...

    • A search for new physics in central exclusive production using the missing mass technique with the CMS detector and the CMS-TOTEM precision proton spectrometer 

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      Tumasyan, A.

      ;

      Adam, W.

      ;

      Andrejkovic, J.W.

      ;

      Bergauer, T.

      ;

      Finger, Miroslav

      ;

      Finger, Michael

      ;

      Květoň, Antonín

      ;

      Georgiev, V.

      ;

      Hammerbauer, J.

      ;

      Linhart, R,

      ;

      Peroutka, Z.

      ;

      Široký, J.

      ;

      Urban, O.

      ;

      Vavroch, O.

      ;

      Zich, J.

      ;

      Kašpar, J.

      ;

      Kundrát, V,

      ;

      Lokajíček, M.V.

      ;

      Procházka, J.

      ;

      Doubek, M.

      ;

      Janda, M.

      ;

      Vacek, V.

      2023

      ,

      European Physical Journal C

      ,

      83

      (9)

      A generic search is presented for the associated production of a Z boson or a photon with an additional unspecified massive particle X, pp -> pp + Z/gamma + X, in proton-tagged events from proton-proton collisions at root ...

    • Search for supersymmetry in final states with a single electron or muon using angular correlations and heavy-object identification in proton-proton collisions at √s=13 TeV 

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      Tumasyan, A.

      ;

      Adam, W.

      ;

      Andrejkovic, J.W.

      ;

      Bergauer, T.

      ;

      Finger, Miroslav

      ;

      Finger, Michael

      ;

      Květoň, Antonín

      2023

      ,

      Journal of High Energy Physics

      ,

      neuveden

      (09)

      A search for supersymmetry is presented in events with a single charged lepton, electron or muon, and multiple hadronic jets. The data correspond to an integrated luminosity of 138 fb(-1) of proton-proton collisions at a ...

    • Measurement of the t(t)over-bar charge asymmetry in events with highly Lorentz-boosted in collisions at √s=13 TeV 

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      Tumasyan, A.

      ;

      Adam, W.

      ;

      Andrejkovic, J.W.

      ;

      Bergauer, T.

      ;

      Finger, Miroslav

      ;

      Finger, Michael

      ;

      Květoň, Antonín

      2023

      ,

      Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

      ,

      846

      (15th Sept. 2023)

      The measurement of the charge asymmetry in top quark pair events with highly Lorentz-boosted top quarks decaying to a single lepton and jets is presented. The analysis is performed using protonproton collisions at root s ...

    • Positron unveiling high mobility graphene stack interfaces in Li-ion cathodes 

      původní článek

      open access

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      Zheng, Meiying

      ;

      Kuriplach, Jan

      ;

      Makkonen, Ilja

      ;

      Ferragut, Rafael

      ;

      Di Noto, Vito

      ;

      Pagot, Gioele

      ;

      Laakso, Ekaterina

      ;

      Barbiellini, Bernardo

      2024

      ,

      Communications Materials

      ,

      5

      (1)

      Carbon-based coatings in Li-ion battery cathodes improve electron conductivity and enable rapid charging. However, the mechanism is not well understood. Here, we address this question by using positrons as non-destructive ...

    • Electron vortex beams for chirality probing at the nanoscale 

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      open access

      postprint

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      Laštovičková Streshkova, Neli

      ;

      Koutenský, Petr

      ;

      Kozák, Martin

      2024

      ,

      Physical Review Applied

      ,

      22

      (5)

      In this work we propose a method for probing the chirality of nanoscale electromagnetic near fields utilizing the properties of a coherent superposition of free-electron vortex states in electron microscopes. Electron beams ...

    • Low-temperature antiferromagnetism in quaternary Mn2FeSi0.5Al0.5 alloys 

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      Zivotsky, Ondrej

      ;

      Gembalova, Lucie

      ;

      Skotnicova, Katerina

      ;

      Szurman, Ivo

      ;

      Cegan, Tomas

      ;

      Jurica, Jan

      ;

      Malina, Ondrej

      ;

      Čížek, Jakub

      2024

      ,

      AIP Advances

      ,

      14

      (1)

      In this work, the quaternary Mn2FeSi0.5Al0.5 alloys are prepared for the first time in the form of cylinder-shaped ingots by traditional induction melting technique followed by homogenization annealing at 773 K for 100 h. ...

    • Challenges of constructing and selecting the "perfect" boundary conditions for the large-eddy simulation model PALM 

      původní článek

      open access

      vydavatelská verze

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      Radović, Jelena

      ;

      Belda, Michal

      ;

      Resler, Jaroslav

      ;

      Eben, Kryštof

      ;

      Bureš, Martin

      ;

      Geletič, Jan

      ;

      Krč, Pavel

      ;

      Řezníček, Hynek

      ;

      Fuka, Vladimír

      2024

      ,

      Geoscientific Model Development

      ,

      17

      (7)

      We present the process of and difficulties in acquiring the proper boundary conditions (BCs) for the state-of-the-art large-eddy simulation (LES)-based PALM model system. We use the mesoscale Weather Research and Forecasting ...

    • Phase-field fracture in finitely-strained viscoelastic solids in an Eulerian formulation 

      příspěvek v recenzovaném konferenčním sborníku

      open access

      vydavatelská verze

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      Roubíček, Tomáš

      2024

      ,

      European commuity

      ,

      European Mathematical Society

      ,

      Oberwolfach Repeports

      ,

      21

      (1)

      Phase-field fracture in finitely-strained viscoelastic solids in an Eulerian formulation has no specific anotation.

    • Evaluating the ALADIN-climate model reanalysis over Central Europe 

      původní článek

      open access

      vydavatelská verze

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      Beranová, Romana

      ;

      Belda, Michal

      ;

      Brožková, Radmila

      ;

      Pokorná, Lucie

      ;

      Popová, Jana

      ;

      Rulfová, Zuzana

      ;

      Sokol, Zbyněk

      2025

      ,

      Elsevier Science

      ,

      Atmospheric Research

      ,

      314

      (březen 2025)

      Reanalysis is a well-established tool for monitoring the state of the atmosphere. This study aims at validating the ALADIN-Climate (AC) model reanalysis over Europe with a focus on Central Europe. The AC model is based on ...

    • Search for Scalar Leptoquarks Produced via τ-Lepton-Quark Scattering in pp Collisions at ffiffi s p=13 TeV 

      původní článek

      open access

      vydavatelská verze

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      Hayrapetyan, A.

      ;

      Tumasyan, A.

      ;

      Adam, W.

      ;

      Andrejkovic, J. W.

      ;

      Bergauer, T.

      ;

      Chatterjee, S.

      ;

      Damanakis, K.

      ;

      Dragicevic, M.

      ;

      Del Valle, A. Escalante

      ;

      Hussain, P. S.

      ;

      Jeitler, M.

      ;

      Finger, Michael

      ;

      Finger, Miroslav

      ;

      Květoň, Antonín

      ;

      Schieck, J.

      2024

      ,

      Physical Review Letters

      ,

      132

      (6)

      The first search for scalar leptoquarks produced in z-lepton-quark collisions is presented. It is based on a set of proton-proton collision data recorded with the CMS detector at the LHC at a center-of-mass energy of 13 ...

    • Detection of Guanine Quadruplexes by Raman Optical Activity and Quantum-Chemical Interpretation of the Spectra 

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      open access

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      Para Kkadan, Mohammed Siddhique

      ;

      Jílek, Štěpán

      ;

      Profant, Václav

      ;

      Kapitán, Josef

      ;

      Kessler, Jiří

      ;

      Bouř, Petr

      2024

      ,

      Chemistry - A European Journal

      ,

      30

      (70)

      Quadruplexes formed by guanine derivatives or guanine-rich nucleic acids are involved in metabolism and genetic storage of many living organisms, they are used in DNA nanotechnologies or as biosensors. Since many quadruplex ...

    • Search for Inelastic Dark Matter in Events with Two Displaced Muons and Missing Transverse Momentum in Proton-Proton Collisions at √s=13 TeV 

      původní článek

      open access

      vydavatelská verze

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      Hayrapetyan, A.

      ;

      Tumasyan, A.

      ;

      Adam, W.

      ;

      Andrejkovic, J. W.

      ;

      Bergauer, T.

      ;

      Chatterjee, S.

      ;

      Damanakis, K.

      ;

      Dragicevic, M.

      ;

      Del Valle, A. Escalante

      ;

      Hussain, P. S.

      ;

      Finger, Michael

      ;

      Finger, Miroslav

      ;

      Květoň, Antonín

      2024

      ,

      Physical Review Letters

      ,

      132

      (4)

      A search for dark matter in events with a displaced nonresonant muon pair and missing transverse momentum is presented. The analysis is performed using an integrated luminosity of 138 fb-1 of protonproton (pp) collision ...

    • Building on slope: results of a second research cycle on the differential calculus of two-variable functions 

      příspěvek v recenzovaném konferenčním sborníku

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      vydavatelská verze

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      Martínez-Planell, Rafael

      ;

      Trigueros, Maria

      ;

      Borji, Vahid

      2024

      ,

      Barcelona

      ,

      Escola Univeristaria Salesiana de Sarria - Univ. Autonoma de Barcelona and INDRUM

      ,

      INDRUM2024 PROCEEDINGS

      This study applies Action-Process-Object-Schema (APOS) theory in a second research cycle investigating how an approach based on the explicit consideration of slope in three dimensions and local linearity contributes to ...

    • Pre-service teachers’ understanding of sine and cosine functions and their inverses based on the unit circle trigonometry 

      příspěvek v recenzovaném konferenčním sborníku

      open access

      vydavatelská verze

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      Borji, Vahid

      ;

      Martínez-Planell, Rafael

      ;

      Surynková, Petra

      2024

      ,

      Barcelona, Spain

      ,

      Escola Univeristaria Salesiana de Sarria - Univ. Autonoma de Barcelona and INDRUM

      ,

      Fifth conference of the International Network for Didactic Research in University Mathematics

      We applied Action-Process-Object-Schema (APOS) theory to study pre-service secondary mathematics teachers' understanding of the concepts of sine and cosine functions and their inverses based on the unit circle approach. ...

    • Structural and morphological investigation of (R)-α-phenylethylammonium-oxalate in bulk vs. nanowires on a modified substrate surface 

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      open access

      vydavatelská verze

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      Burazer, Sanja

      ;

      Košutová, Tereza

      ;

      Horák, Lukáš

      ;

      Dopita, Milan

      ;

      Santic, Ana

      ;

      Fučíková, Anna

      2024

      ,

      ROYAL SOC CHEMISTRY

      ,

      RSC Advances

      ,

      14

      (12)

      A chiral organic insulator, (R)-alpha-phenylethylammonium-oxalate (RAPEAO), was prepared in the forms of single-crystal, powder and spin-coated layers on silicon substrate surfaces modified by plasma treatment or a ...

    • Research on the results of secondary school physics education of Generation Z in the Czech Republic 

      příspěvek v recenzovaném konferenčním sborníku

      open access

      vydavatelská verze

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      Mandíková, Dana

      ;

      Pschotnerová, Petra

      2024

      ,

      Bristol

      ,

      IOP PUBLISHING LTD

      ,

      DIDFYZ 2023 - New approaches in physics education for generation Z

      ,

      2715

      There are no uniform exit tests in physics at the end of secondary school studies in the Czech Republic to give a picture of what students take away from their physics studies. Therefore, we decided to take advantage of ...