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arXiv 2023年

作者： Alghamdi, T. Alanazi, Y. Battaglieri, M. Bibrzycki, L. Golda, A.V. Blin, A.N. Hiller Isupov, E.L. Li, Y. Marsicano, L. Melnitchouk, W. Mokeev, V.I. Montaña, G. Pilloni, A. Sato, N. Szczepaniak, A.P. Vittorini, T. Department of Computer Science Old Dominion University NorfolkVA23529 United States Department of Computer Science College of Computer Science and Information Technology Al-Baha University Al-Baha Alaqiq65779 Saudi Arabia Thomas Jefferson National Accelerator Facility Newport NewsVA23606 United States INFN sezione di Genova GenovaI-16146 Italy AGH University of Krakow Faculty of Physics and Applied Computer Science KrakówPL-30-059 Poland Faculty of Physics Lomonosov Moscow State University Moscow119991 Russia Institute for Theoretical Physics Tübingen University TübingenD-72076 Germany Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State University Moscow119234 Russia CSSM and CDMPP Department of Physics University of Adelaide 5005 Australia Dipartimento di Scienze Matematiche e Informatiche Scienze Fisiche e Scienze della Terra Università degli Studi di Messina MessinaI-98166 Italy INFN Sezione di Catania CataniaI-95123 Italy Department of Physics Indiana University BloomingtonIN47405 United States Center for Exploration of Energy and Matter Indiana University BloomingtonIN47403 United States Università di Genova GenovaI-16146 Italy

AI-supported algorithms, particularly generative models, have been successfully used in a variety of different contexts. In this work, we demonstrate for the first time that generative adversarial networks (GANs) can be used in high-energy experimental physics to unfold detector effects from multi-particle final states, while preserving correlations between kinematic variables in multidimensional phase space. We perform a full closure test on two-pion photoproduction pseudodata generated with a realistic model in the kinematics of the Jefferson Lab CLAS g11 experiment. The overlap of different reaction mechanisms leading to the same final state associated with the CLAS detector’s nontrivial effects represents an ideal test case for AI-supported analysis. Uncertainty quantification performed via bootstrap provides an estimate of the systematic uncertainty associated with the procedure. The test demonstrates that GANs can reproduce highly correlated multidifferential cross sections even in the presence of detector-induced distortions in the training datasets, and provides a solid basis for applying the framework to real experimental data. Copyright © 2023, The Authors. All rights reserved.

关键词： Generative adversarial networks

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Knowledge-based target selection in a building navigation system 26

Knowledge-based target selection in a building navigation sy...

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26th International Workshop on Intelligent Computing in Engineering, EG-ICE 2019

作者： Palacz, Wojciech Faculty of Physics Astronomy and Applied Computer Science Jagiellonian University Kraków Poland

This paper is concerned with indoor navigation systems integrated with knowledge bases containing rich semantic data about buildings and their constituent spaces. Specifically, it is concerned with a system which utilizes graph models with labels, attributes and hierarchies storing semantic knowledge. That information can be used to describe navigation targets, as was shown in (Palacz et al., 2016). This paper continues that work and proposes a graphical user interface which allows for specifying complex target selection criteria. © 2019 CEUR-WS. All rights reserved.

关键词： Navigation systems

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INVERSE LIMIT METHOD FOR GENERALIZED BRATTELI DIAGRAMS AND INVARIANT MEASURES

arXiv

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arXiv 2024年

作者： Bezuglyi, Sergey Karpel, Olena Kwiatkowski, Jan Wata, Marcin Department of Mathematics University of Iowa Iowa CityIA52242-1419 United States AGH University of Krakow Faculty of Applied Mathematics al. Adama Mickiewicza 30 Kraków30-059 Poland B. Verkin Institute for Low Temperature Physics and Engineering 47 Nauky Ave. Kharkiv61103 Ukraine Faculty of Mathematics and Computer Science Nicolaus Copernicus University ul. Chopina 12/18 Toruń87-100 Poland Faculty of Economic Sciences and Management Nicolaus Copernicus University ul. Chopina 12/18 Toruń87-100 Poland

Generalized Bratteli diagrams with a countable set of vertices in every level are models for aperiodic Borel automorphisms. This paper is devoted to the description of all ergodic probability tail invariant measures on the path spaces of generalized Bratteli diagrams. Such measures can be identified with inverse limits of infinite-dimensional simplices associated with levels in generalized Bratteli diagrams. Though this method is general, we apply it to several classes of reducible generalized Bratteli diagrams. In particular, we explicitly describe all ergodic tail invariant probability measures for (i) the infinite Pascal graph and give the formulas for the values of such measures on cylinder sets, (ii) generalized Bratteli diagrams formed by a countable set of odometers, (iii) reducible generalized Bratteli diagrams with uncountable set of ergodic tail invariant probability measures. We also consider the method of measure extension by tail invariance from subdiagrams. We discuss the properties of the Vershik map defined on reducible generalized Bratteli *** Codes 37A05, 37B05, 37A40, 54H05, 05C60 © 2024, CC BY.

关键词： Dynamical systems

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Benchmarking quantum devices beyond classical capabilities

arXiv

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arXiv 2025年

作者： Bistron, Rafal Rudzinski, Marcin Kukulski, Ryszard Zyczkowski, Karol Faculty of Physics Astronomy and Applied Computer Science Jagiellonian University ul. L̷ojasiewicza 11 Kraków30-348 Poland Doctoral School of Exact and Natural Sciences Jagiellonian University ul. L̷ojasiewicza 11 Kraków30-348 Poland IT4Innovations VSB - Technical University of Ostrava 17. listopadu 2172/15 Ostrava708 33 Czech Republic Center for Theoretical Physics Polish Academy of Sciences Al. Lotników 32/46 Warszawa02-668 Poland

Rapid development of quantum computing technology has led to a wide variety of sophisticated quantum devices. Benchmarking these systems becomes crucial for understanding their capabilities and paving the way for future advancements. The Quantum Volume (QV) test is one of the most widely used benchmarks for evaluating quantum computer performance due to its architecture independence. However, as the number of qubits in a quantum device grows, the test faces a significant limitation: classical simulation of the quantum circuit, which is indispensable for evaluating QV, becomes computationally impractical. In this work, we propose modifications of the QV test that allow for direct determination of the most probable outcomes (heavy output subspace) of a quantum circuit, eliminating the need for expensive classical simulations. This approach resolves the scalability problem of the Quantum Volume test beyond classical computational capabilities. © 2025, CC BY-SA.

关键词： Quantum electronics

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Microgravity analysis of periodic oscillations of heat and mass transfer of Darcy-Forchheimer nanofluid along radiating stretching surface with Joule heating effects

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Results in physics 2024年 62卷

作者： Ullah, Zia El-Zahar, Essam. R. Seddek, Laila F. Eladeb, Aboulbaba Kolsi, Lioua Alsharari, Abdulrhman M. Asad, Jihad Akgül, Ali Department of Mathematics and Statistics The University of Lahore Sargodha-Campus Sargodha 40100 Pakistan Department of Mathematics College of Science and Humanities in Al-Kharj Prince Sattam Bin Abdulaziz University P.O. Box 83 Al-Kharj 11942 Saudi Arabia Department of Basic Engineering Science Faculty of Engineering Menoufia University Shebin El-Kom 32511 Egypt Department of Engineering Mathematics and Physics Faculty of Engineering Zagazig University Zagazig 44519 Egypt Department of Chemical and Materials Engineering College of Engineering Northern Border University P.O. Box 1321 Arar Saudi Arabia Department of Mechanical Engineering College of Engineering University of Ha'il Ha'il City Saudi Arabia Department of Physics University of Tabuk Tabuk 71491 Saudi Arabia Department of Physics Faculty of Applied Science Palestine Technical University Tulkarm P Kadoorie 305 Palestine Department of Computer Science and Mathematics Lebanese American University Beirut Lebanon Siirt University Art and Science Faculty Department of Mathematics Siirt 56100 Turkey

Reduced gravity impact on mixed convection flow plays a significant role for designing of electric-generating plants in space, unwanted effects of free convection, thermodynamic stability, space devices, surface tension and movement of nanoparticles. The novelty of present work is to find the impact of reduced gravity, Joule heating and thermal radiations on Darcy Forchheimer magnetized flow of nanofluid along the stretching porous sheet. The variable gravity is assumed as temperature dependent with maximum density and maximum density. The governing model is converted into convenient model to find physical thermo parameters. The primitive steady, real and imaginary equations are formed by using stokes and primitive transformations. To make programming algorithm in FORTRAN Lahey-90/95, the primitively terms are deduced in each equation. For tabular and numerical findings of steady velocity, temperature and concentration, the implicit form of finite difference approach is applied with Gaussian elimination method. The fluctuating skin friction, fluctuating heat transfer and fluctuating mass transfer are displayed by using steady outcomes in main formula. It is found that the magnitude of fluid velocity enhances as magnetic force, reduced gravity and Darcy Forchheimer parameter enhances. It is concluded that temperature distribution decreases as magnetic force enhances. It is noted that oscillating frequency in skin friction and heat transfer enhances as Schmidt number enhances. It is found that the maximum fluctuating layer in heat and mass transfer enhances as Prandtl number enhances. © 2024 The Author(s)

关键词： Darcy Forchheimer porous medium Heat and mass transfer Joule heating Magnetic field Microgravity Oscillatory flow Thermal radiations

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Light-induced circuit parameter variation in self-assembled quantum-dot photovoltaic cell

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Materials Today: Proceedings 2021年 47卷 3425-3429页

作者： Unchittha Prasatsap Suwit Kiravittaya Sasipohn Prasertpalichat Nutthaphat Thornyanadacha Zon Supachok Thainoi Somsak Panyakeow Department of Electrical and Computer Engineering Faculty of Engineering Naresuan University Phitsanulok Thailand Research Center for Academic Excellent in Applied Physics Faculty of Science Naresuan University Phitsanulok Thailand Semiconductor Device Research Laboratory (SDRL) Department of Electrical Engineering Faculty of Engineering Chulalongkorn University Bangkok Thailand Department of Physics Faculty of Science Naresuan University Phitsanulok Thailand Thai Microelectronics Center (TMEC) National Science and Technology Development Agency (NSTDA) Chachoengsao Thailand

We investigate the variations of circuit parameters of photovoltaic (PV) cells containing self-assembled InSb and GaSb quantum dots. The solar cell samples are fabricated by conventional molecular beam epitaxy on (0 0 1) GaAs substrate. The current–voltage ( I-V ) characteristics and the frequency response (10 Hz – 100 kHz) of the fabricated cell is then extracted in dark and illuminated environment. The obtained I-V curves show typical PV properties. The static series and shunt resistances can be then extracted from this measurement result. From the Nyquist plot of the device impedance, both dynamic resistance and capacitance can be further extracted. Variations of these values are quantified. Light-induced lowering of the resistance values are explained by the presence of photogenerated carriers. This work provides a useful information for both the basic understanding of PV devices and the design of electronic circuit for energy harvesting and sensing with PV cells.

关键词： Photovoltaic Quantum dot Current–voltage Frequency response Circuit parameter

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Search for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a Z boson in the ℓ+ℓ−tt¯ and νν¯bb¯ final states using 140 fb⁻¹ of data collected with the ATLAS detector

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Journal of High Energy physics 2024年第2期2024卷 197页

作者： Aad, G. Abbott, B. Abeling, K. Abicht, N.J. Abidi, S.H. Aboulhorma, A. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.S. Adam Bourdarios, C. Adamczyk, L. Addepalli, S.V. Addison, M.J. Adelman, J. Adiguzel, A. Adye, T. Affolder, A.A. Afik, Y. Agaras, M.N. Agarwala, J. Aggarwal, A. Agheorghiesei, C. Ahmad, A. Ahmadov, F. Ahmed, W.S. Ahuja, S. Ai, X. Aielli, G. Aikot, A. Ait Tamlihat, M. Aitbenchikh, B. Aizenberg, I. Akbiyik, M. Åkesson, T.P.A. Akimov, A.V. Akiyama, D. Akolkar, N.N. Aktas, S. Al Khoury, K. Alberghi, G.L. Albert, J. Albicocco, P. Albouy, G.L. Alderweireldt, S. Aleksa, M. Aleksandrov, I.N. Alexa, C. Alexopoulos, T. Alfonsi, F. Algren, M. Alhroob, M. Ali, B. Ali, H.M.J. Ali, S. Alibocus, S.W. Aliev, M. Alimonti, G. Alkakhi, W. Allaire, C. Allbrooke, B.M.M. Allen, J.F. Allendes Flores, C.A. Allport, P.P. Aloisio, A. Alonso, F. Alpigiani, C. Alvarez Estevez, M. Alvarez Fernandez, A. Alves Cardoso, M. Alviggi, M.G. Aly, M. Amaral Coutinho, Y. Ambler, A. Amelung, C. Amerl, M. Ames, C.G. Amidei, D. Amor Dos Santos, S.P. Amos, K.R. Ananiev, V. Anastopoulos, C. Andeen, T. Anders, J.K. Andrean, S.Y. Andreazza, A. Angelidakis, S. Angerami, A. Anisenkov, A.V. Annovi, A. Antel, C. Anthony, M.T. Antipov, E. Antonelli, M. Anulli, F. Aoki, M. Aoki, T. Aparisi Pozo, J.A. Aparo, M.A. Aperio Bella, L. Appelt, C. Apyan, A. Aranzabal, N. Arbiol Val, S.J. Arcangeletti, C. Arce, A.T.H. Arena, E. Arguin, J.-F. Argyropoulos, S. Arling, J.-H. Arnaez, O. Arnold, H. Artoni, G. Asada, H. Asai, K. Asai, S. Asbah, N.A. Assamagan, K. Astalos, R. Atashi, S. Atkin, R.J. Atkinson, M. Atmani, H. Atmasiddha, P.A. Augsten, K. Auricchio, S. Auriol, A.D. Austrup, V.A. Avolio, G. Axiotis, K. Azuelos, G. Babal, D. Bachacou, H. Bachas, K. Bachiu, A. Backman, F. Badea, A. Baer, T.M. Bagnaia, P. Bahmani, M. Bailey, A.J. Bailey, V.R. Baines, J.T. Baines, L. Baker, O.K. Bakos, E. Bakshi Gupta, D. Balakrishnan, V. Balasubramanian, R. Baldin, E.M. Balek, P. Ballabene, E. Balli, F. Baltes, L.M. Balunas, W.K. Balz, J. Banas, E. Bandieramonte, M. Ba CPPM Aix-Marseille Université CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman OK United States II. Physikalisches Institut Georg-August-Universität Göttingen Göttingen Germany Fakultät Physik Technische Universität Dortmund Dortmund Germany Physics Department Brookhaven National Laboratory Upton NY United States Faculté des sciences Université Mohammed V Rabat Morocco Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel Department of Physics Technion Israel Institute of Technology Haifa Israel Department of Physics New York University New York NY United States INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy Department of Physics King’s College London London United Kingdom LAPP Université Savoie Mont Blanc CNRS/IN2P3 Annecy France AGH University of Krakow Faculty of Physics and Applied Computer Science Krakow Poland Department of Physics Brandeis University Waltham MA United States School of Physics and Astronomy University of Manchester Manchester United Kingdom Department of Physics Northern Illinois University DeKalb IL United States Department of Physics Istanbul University Istanbul Turkey Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Santa Cruz Institute for Particle Physics University of California Santa Cruz Santa Cruz CA United States CERN Geneva Switzerland Institut de Física d’Altes Energies (IFAE) Barcelona Institute of Science and Technology Barcelona Spain INFN Sezione di Pavia Pavia Italy Dipartimento di Fisica Università di Pavia Pavia Italy Institut für Physik Universität Mainz Mainz Germany Department of Physics Alexandru Ioan Cuza University of Iasi Iasi Romania Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Department of Physics McGill University Montreal QC Canada Department of Physics Royal Holloway University of

A search for a heavy CP-odd Higgs boson, A, decaying into a Z boson and a heavy CP-even Higgs boson, H, is presented. It uses the full LHC Run 2 dataset of pp collisions at s = 13 TeV collected with the ATLAS detector, corresponding to an integrated luminosity of 140 fb⁻¹. The search for A → ZH is performed in the ℓ⁺ℓ⁻tt¯ and νν¯bb¯ final states and surpasses the reach of previous searches in different final states in the region with m_H > 350 GeV and m_A > 800 GeV. No significant deviation from the Standard Model expectation is found. Upper limits are placed on the production cross-section times the decay branching ratios. Limits with less model dependence are also presented as functions of the reconstructed m(tt¯) and m(bb¯) distributions in the ℓ⁺ℓ⁻tt¯ and νν¯bb¯ channels, respectively. In addition, the results are interpreted in the context of two-Higgs-doublet models. © The Author(s) 2024.

关键词： Hadron-Hadron Scattering

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J-PET detection modules based on plastic scintillators for performing studies with positron and positronium beams

arXiv

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arXiv 2023年

作者： Sharma, S. Baran, J. Brusa, R.S. Caravita, R. Chug, N. Coussat, A. Curceanu, C. Czerwiński, E. Dadgar, M. Dulski, K. Eliyan, K. Gajos, A. Hiesmayr, B.C. Kacprzak, K. Kaplon, L. Klimaszewski, K. Konieczka, P. Korcyl, G. Kozik, T. Krzemień, W. Kumar, D. Mariazzi, S. Niedźwiecki, S. Panasa, L. Parzych, S. Povolo, L. del Rio, E. Perez Raczyński, L. Shivani Shopa, R.Y. Skurzok, M. Stępień, E.L. Tayefi, F. Tayefi, K. Wiślicki, W. Moskal, P. Faculty of Physics Astronomy and Applied Computer Science Jagiellonian University Krakow Poland Total-Body Jagiellonian-PET Laboratory Jagiellonian University Kraków Poland Center for Theranostics Jagiellonian University Cracow Poland Department of Physics University of Trento via Sommarive 14 Povo Trento38123 Italy TIFPA INFN via Sommarive 14 Povo Trento38123 Italy INFN Laboratori Nazionali di Frascati Frascati Italy Faculty of Physics University of Vienna Vienna Austria Department of Complex Systems National Centre for Nuclear Research Otwock-Świerk Poland High Energy Physics Division National Centre for Nuclear Research Otwock-Świerk Poland

The J-PET detector, which consists of inexpensive plastic scintillators, has demonstrated its potential in the study of fundamental physics. In recent years, a prototype with 192 plastic scintillators arranged in 3 layers has been optimized for the study of positronium decays. This allows performing precision tests of discrete symmetries (C, P, T) in the decays of positronium atoms. Moreover, thanks to the possibility of measuring the polarization direction of the photon based on Compton scattering, the predicted entanglement between the linear polarization of annihilation photons in positronium decays can also be studied. Recently, a new J-PET prototype was commissioned, based on a modular design of detection units. Each module consists of 13 plastic scintillators and can be used as a stand-alone, compact and portable detection unit. In this paper, the main features of the J-PET detector, the modular prototype and their applications for possible studies with positron and positronium beams are discussed. Preliminary results of the first test experiment performed on two detection units in the continuous positron beam recently developed at the Antimatter Laboratory (AML) of Trento are also reported. Copyright © 2023, The Authors. All rights reserved.

关键词： Positrons

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Revisiting constraints on proton PDFs from HERA DIS, Drell-Yan, W/Z Boson production, and projected EIC measurements

arXiv

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arXiv 2024年

作者： Azizi, Majid Soleymaninia, Maryam Hashamipour, Hadi Salajegheh, Maral Khanpour, Hamzeh Meißner, Ulf G. P.O.Box 19395-5531 Tehran Iran Istituto Nazionale di Fisica Nucleare Gruppo collegato di Cosenza Arcavacata di Rende CosenzaI-87036 Italy Helmholtz-Institut für Strahlen-und Kernphysik Bethe Center for Theoretical Physics Universität Bonn BonnD-53115 Germany AGH University Faculty of Physics and Applied Computer Science Al. Mickiewicza 30 Krakow30-055 Poland Department of Physics University of Science and Technology of Mazandaran P.O.Box 48518-78195 Behshahr Iran Forschungszentrum Jülich JülichD-52425 Germany Tbilisi State University Tbilisi0186 Georgia

We present new parton distribution functions (PDFs) at next-to-leading order (NLO) and next-to-next-to-leading order (NNLO) in perturbative QCD, derived from a comprehensive global QCD analysis of high-precision data sets from combined HERA deep-inelastic scattering (DIS), the Tevatron, and the Large Hadron Collider (LHC). To improve constraints on quark flavor separation, we incorporate Drell-Yan pair production data, which provides critical sensitivity to the quark distributions. In addition, we include the latest W and Z boson production data from the CDF, D0, ATLAS, and CMS collaborations, further refining both quark and gluon distributions. Our nominal global QCD fit integrates these datasets and examines the resulting impact on the PDFs and their associated uncertainties. Uncertainties in the PDFs are quantified using the Hessian method, ensuring robust error estimates. Furthermore, we explore the sensitivity of the strong coupling constant, αs(MZ2 ), and proton PDFs in light of the projected measurements from the Electron-Ion Collider (EIC), where improvements in precision are expected. The analysis also investigates the effects of inclusive jet and dijet production data, which provide enhanced constraints on the gluon PDF and αs(MZ2 ). © 2024, CC BY.

关键词： Bosons

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Analysis, and machine learning anomaly detection of the VELO-LHCb calibration 2

Analysis, and machine learning anomaly detection of the VELO...

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2nd Trans-Siberian School on High Energy physics 2019

作者： Majewski, MacIej Faculty of Physics and Applied Computer Science AGH University of Science and Technology Mickiewicza 30 Krakw Poland

Silicon detectors are an extraordinary piece of equipment that has become the cornerstone of research in modern high energy physics. They are becoming increasingly useful in medical research as well. LHCbs VELO detector is itself, a microstrip silicon vertex detector. It is the heart of LHCb spectrometer and plays a vital role in the reconstruction of particle tracks. The data gathered by VELO is used in LHCb studies of CP violation and heavy flavour physics. This work presents the studies on the calibration parameters of the VELO-LHCb. The inference from the analysis, with the use of probabilistic programming, is then used to create a machine learning based anomaly detection system in the space of VELO calibration. © Published under licence by IOP Publishing Ltd.

关键词： Calibration

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