检索结果-内蒙古大学图书馆

arXiv 2023年

作者： Abe, K. Abe, S. Aguasca-Cabot, A. Agudo, I. Alvarez Crespo, N. Antonelli, L.A. Aramo, C. Arbet-Engels, A. Arcaro, C. Artero, M. Asano, K. Aubert, P. Baktash, A. Bamba, A. Baquero Larriva, A. Baroncelli, L. Barres de Almeida, U. Barrio, J.A. Batkovic, I. Baxter, J. Becerra González, J. Bernardini, E. Bernardos, M.I. Bernete Medrano, J. Berti, A. Bhattacharjee, P. Biederbeck, N. Bigongiari, C. Bissaldi, E. Blanch, O. Bonnoli, G. Bordas, P. Bulgarelli, A. Burelli, I. Burmistrov, L. Buscemi, M. Cardillo, M. Caroff, S. Carosi, A. Carrasco, M.S. Cassol, F. Cauz, D. Cerasole, D. Ceribella, G. Chai, Y. Cheng, K. Chiavassa, A. Chikawa, M. Chytka, L. Cifuentes, A. Contreras, J.L. Cortina, J. Costantini, H. Dalchenko, Mykhailo Dazzi, F. De Angelis, A. de Bony de Lavergne, M. De Lotto, B. De Lucia, M. de Menezes, R. Del Peral, L. Deleglise, G. Delgado, C. Delgado Mengual, J. della Volpe, D. Dellaiera, M. Di Piano, A. Di Pierro, F. Di Pilato, A. Di Tria, R. Di Venere, L. Díaz, C. Dominik, R.M. Dominis Prester, D. Donini, A. Dorner, D. Doro, M. Eisenberger, L. Elsässer, D. Emery, G. Escudero, J. Fallah Ramazani, V. Ferrara, G. Ferrarotto, F. Fiasson, A. Foffano, L. Freixas Coromina, L. Fröse, S. Fukami, S. Fukazawa, Y. Garcia, E. Garcia López, R. Gasbarra, C. Gasparrini, D. Geyer, D. Giesbrecht Paiva, J. Giglietto, N. Giordano, F. Gliwny, P. Godinovic, N. Grau, R. Green, J. Green, D. Gunji, S. Günther, P. Hackfeld, J. Hadasch, D. Hahn, A. Hashiyama, K. Hassan, T. Hayashi, K. Heckmann, L. Heller, Matthieu Herrera Llorente, J. Hirotani, K. Hoffmann, D. Horns, D. Houles, J. Hrabovsky, M. Hrupec, D. Hui, D. Hütten, M. Iarlori, M. Imazawa, R. Inada, T. Inome, Y. Ioka, K. Iori, M. Ishio, K. Jimenez Martinez, I. Jurysek, J. Kagaya, M. Karas, V. Katagiri, H. Kataoka, J. Kerszberg, D. Kobayashi, Y. Kohri, K. Kong, A. Kubo, H. Kushida, J. Lainez, M. Lamanna, G. Lamastra, A. Le Flour, T. Linhoff, M. Longo, F. López-Coto, R. López-Oramas, A. Loporchio, S. Lorini, A. Lozano Bahilo, J. Department of Physics Tokai University Japan Institute for Cosmic Ray Research University of Tokyo Japan Departament de Física Quàntica i Astrofísica Institut de Ciències del Cosmos Universitat de Barcelona IEEC-UB Spain Instituto de Astrofísica de Andalucía-CSIC Spain EMFTEL department and IPARCOS Universidad Complutense de Madrid Spain INAF - Osservatorio Astronomico di Roma Italy INFN Sezione di Napoli Italy Max-Planck-Institut für Physik Germany INFN Sezione di Padova Università degli Studi di Padova Italy The Barcelona Institute of Science and Technology Spain LAPP Univ. Grenoble Alpes Univ. Savoie Mont Blanc CNRS-IN2P3 Annecy France Universität Hamburg Institut für Experimentalphysik Germany Graduate School of Science University of Tokyo Japan Universidad del Azuay Ecuador INAF - Osservatorio di Astrofisica e Scienza dello Spazio di Bologna Italy Centro Brasileiro de Pesquisas Físicas Brazil Instituto de Astrofísica de Canarias Departamento de Astrofísica Universidad de La Laguna Spain CIEMAT Spain Department of Physics TU Dortmund University Germany INFN Sezione di Bari Politecnico di Bari Italy INAF - Osservatorio Astronomico di Brera Italy INFN Sezione di Trieste Università degli Studi di Udine Italy University of Geneva Département de Physique Nucléaire et Corpusculaire 24 quai Ernest-Ansermet Genève Switzerland INFN Sezione di Catania Italy Italy Aix Marseille Univ CNRS IN2P3 CPPM France INFN Sezione di Bari Università di Bari Italy INFN Sezione di Torino Italy Palacky University Olomouc Faculty of Science Czech Republic University of Alcalá UAH Spain Port d'Informació Científica Spain University of Rijeka Department of Physics Croatia Institute for Theoretical Physics and Astrophysics Universität Würzburg Germany Institut für Theoretische Physik Lehrstuhl IV: Plasma-Astroteilchenphysik Ruhr-Universität Bochum Germany INFN Sezione di Roma La Sapienza Italy ILANCE CNRS France Physics Program Graduate School of Advanced Science and E

We present a new approach to the pointing determination of Imaging Atmospheric Cherenkov Telescopes (IACTs). This method is universal and can be applied to any IACT with minor modifications. It uses the trajectories of the stars in the field of view of the IACT's main camera and requires neither dedicated auxiliary hardware nor a specific data taking mode. The method consists of two parts: firstly, we reconstruct individual star positions as a function of time, taking into account the point spread function of the telescope;secondly, we perform a simultaneous fit of all reconstructed star trajectories using the orthogonal distance regression method. The method does not assume any particular star trajectories, does not require a long integration time, and can be applied to any IACT observation mode. The performance of the method is assessed with commissioning data of the Large-Sized Telescope prototype (LST-1), showing the method's stability and remarkable pointing performance of the LST-1 telescope. © 2023, CC BY-NC-ND.

关键词： Trajectories

来源：评论

学校读者我要写书评

暂无评论

In-situ electric field control of THz non-reciprocal directional dichroism in the multiferroic Ba2CoGe2O7

arXiv

引用

arXiv 2021年

作者： Vít, J. Viirok, J. Peedu, L. Rõõm, T. Nagel, U. Kocsis, V. Tokunaga, Y. Taguchi, Y. Tokura, Y. Kézsmárki, I. Balla, P. Penc, K. Romhányi, J. Bordács, Sandor Department of Physics Budapest University of Technology and Economics Budapest1111 Hungary Institute of Physics Ascr Na Slovance 2 Prague 8182 21 Czech Republic Faculty of Nuclear Science and Physical Engineering Czech Technical University Břehová 7 Prague 1115 19 Czech Republic National Institute of Chemical Physics and Biophysics Akadeemia tee 23 Tallinn12618 Estonia Wako351-0198 Japan Department of Advanced Materials Science University of Tokyo Kashiwa277-8561 Japan Department of Applied Physics Tokyo College University of Tokyo Tokyo113-8656 Japan Experimental Physics v Center for Electronic Correlations and Magnetism University of Augsburg Augsburg86135 Germany Institute for Solid State Physics and Optics Wigner Research Centre or Physics PO Box. 49 BudapestH-1525 Hungary Department of Physics and Astronomy University of California Irvine 4129 Frederick Reines Hall IrvineCA United States Hungarian Academy of Sciences Premium Postdoctor Program Budapest1051 Hungary

Non-reciprocal directional dichroism, also called the optical-diode effect, is an appealing functional property inherent to the large class of non-centrosymmetric magnets. However, the in-situ electric control of this phenomenon is challenging as it requires a set of conditions to be fulfilled: Special symmetries of the magnetic ground state, spin-excitations with comparable magnetic- and electricdipole activity and switchable electric polarization. We demonstrate the isothermal electric switch between domains of Ba2CoGe2O7 possessing opposite magnetoelectric susceptibilities. Combining THz spectroscopy and multiboson spin-wave analysis, we show that unbalancing the population of antiferromagnetic domains generates the non-reciprocal light absorption of spin excitations. Copyright © 2021, The Authors. All rights reserved.

关键词： Electric fields

来源：评论

学校读者我要写书评

暂无评论

NONDESTRUCTIVE TEST FOR QUALITY CONTROL IN LABORATORY-SCALE FABRICATION OF LAMINATED COMPOSITES USING programMABLE PORTABLE ULTRASONIC

引用

International Journal of Lightweight Materials and Manufacture 2025年

作者： Yusuf Giri Wijaya Suprijanto Damar Rastri Adhika Rhakamerta Hijazi Abian Nurrohmad Magister Program of Instrumentation and Control Faculty of Industrial Technology Institut Teknologi Bandung Bandung Indonesia Research Center for Aeronautics Technology National Research and Innovation Agency Bogor Indonesia Instrumentation Control and Automation Research Group Faculty of Industrial Technology Institut Teknologi Bandung Bandung Indonesia Nano and Quantum Technology Research Group Engineering Physics Faculty of Industrial Technology Institut Teknologi Bandung Indonesia Research Center for Nanosciences and Nanotechnology Institut Teknologi Bandung Indonesia Research Center for Nuclear Beam Analysis Technology National Research and Innovation Agency Tangerang Indonesia

Laminated composites are the most frequently used component materials in manufacturing unmanned aerial vehicles (UAVs) in research centers or start-up industries. On a laboratory scale, laminated composites are fabricated by relying on technicians' skills due to the involvement of manual processes. Nondestructive testing (NDT) is needed to guarantee the structural integrity of the final product of laminated composites. The work proposes a programmable portable ultrasonic for nondestructive testing (NDT) to detect a potential defect due to foreign object contamination of fabrication layers of laminate composite. The proposed programmable NDT system is built using open-board devices; therefore, it could be developed cost-effectively compared to a commercial NDT system. The proposed NDT can measure and analyze a pattern of A-scan signal as a function of foreign object contamination material. Based on a C-scan image, the proposed NDT system could also be programmed to detect the size area of potential defects due to foreign object contamination. Two types of specimens, carbon fiber-reinforced polymer (CFRP) and glass fiber-reinforced polymer (GFRP), were tested to evaluate the performance of the developed NDT system. Testing aims to identify artificial defects intentionally placed within these specimens. The proposed portable ultrasonic NDT effectively detects CFRP and GFRP defects on A-mode and C-scan images. Therefore, the proposed portable ultrasonic NDT is an affordable system that can be developed in a laboratory workshop for quality control in laboratory-scale fabrication of laminated composites.

关键词： Laminated composite laboratory-scale fabrication quality control portable ultrasonic NDT A-scan C-scan

来源：评论

学校读者我要写书评

暂无评论

Protons Spectrum from the MAGIC Telescopes data 37

Protons Spectrum from the MAGIC Telescopes data

引用

37th International Cosmic Ray Conference, ICRC 2021

作者： Temnikov, P. Verguilov, V. Maneva, G. Mirzoyan, R. Baack, D. Acciari, V.A. Ansoldi, S. Antonelli, L.A. Arbet Engels, A. Artero, M. Asano, K. Baack, D. Babić, A. Baquero, A. Barres de Almeida, U. Barrio, J.A. Batković, I. Becerra González, J. Bednarek, W. Bellizzi, L. Bernardini, E. Bernardos, M. Berti, A. Besenrieder, J. Bhattacharyya, W. Bigongiari, C. Biland, A. Blanch, O. Bökenkamp, H. Bonnoli, G. Bošnjak, Ž. Busetto, G. Carosi, R. Ceribella, G. Cerruti, M. Chai, Y. Chilingarian, A. Cikota, S. Colak, S.M. Colombo, E. Contreras, J.L. Cortina, J. Covino, S. D’Amico, G. D’Elia, V. Da Vela, P. Dazzi, F. De Angelis, A. De Lotto, B. Delfino, M. Delgado, J. Delgado Mendez, C. Depaoli, D. Di Pierro, F. Di Venere, L. Do Souto Espiñeira, E. Dominis Prester, D. Donini, A. Dorner, D. Doro, M. Elsaesser, D. Fallah Ramazani, V. Fattorini, A. Fonseca, M.V. Font, L. Fruck, C. Fukami, S. Fukazawa, Y. García López, R.J. Garczarczyk, M. Gasparyan, S. Gaug, M. Giglietto, N. Giordano, F. Gliwny, P. Godinović, N. Green, J.G. Green, D. Hadasch, D. Hahn, A. Heckmann, L. Herrera, J. Hoang, J. Hrupec, D. Hütten, M. Inada, T. Ishio, K. Iwamura, Y. Jiménez Martínez, I. Jormanainen, J. Jouvin, L. Karjalainen, M. Kerszberg, D. Kobayashi, Y. Kubo, H. Kushida, J. Lamastra, A. Lelas, D. Leone, F. Lindfors, E. Linhoff, L. Lombardi, S. Longo, F. López-Coto, R. López-Moya, M. López-Oramas, A. Loporchio, S. Machado de Oliveira Fraga, B. Maggio, C. Majumdar, P. Makariev, M. Mallamaci, M. Maneva, G. Manganaro, M. Mannheim, K. Maraschi, L. Mariotti, M. Martínez, M. Mazin, D. Menchiari, S. Mender, S. Mićanović, S. Miceli, D. Miener, T. Miranda, J.M. Mirzoyan, R. Molina, E. Moralejo, A. Morcuende, D. Moreno, V. Moretti, E. Nakamori, T. Nava, L. Neustroev, V. Nigro, C. Nilsson, K. Nishijima, K. Noda, K. Nozaki, S. Ohtani, Y. Oka, T. Otero-Santos, J. Paiano, S. Palatiello, M. Paneque, D. Paoletti, R. Paredes, J.M. Pavletić, L. Peñil, P. Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciencies Sofia1084 Bulgaria Föhringer Ring 6 MunichD-80805 Germany Fakultät Physik Technische Universität Dortmund DortmundD-44227 Germany Instituto de Astrofísica de Canarias and Dpto. de Astrofísica Universidad de La Laguna La Laguna TenerifeE-38200 Spain Università di Udine INFN Trieste UdineI-33100 Italy RomeI-00136 Italy ETH Zürich ZürichCH-8093 Switzerland Bellaterra BarcelonaE-08193 Spain The University of Tokyo Chiba Kashiwa277-8582 Japan Technische Universität Dortmund DortmundD-44221 Germany Zagreb10000 Croatia IPARCOS Institute EMFTEL Department Universidad Complutense de Madrid MadridE-28040 Spain URCA RJ Rio de Janeiro22290-180 Brazil Università di Padova INFN PadovaI-35131 Italy University of Lodz Faculty of Physics and Applied Informatics Department of Astrophysics Lodz90-236 Poland Università di Siena INFN Pisa SienaI-53100 Italy ZeuthenD-15738 Germany Max-Planck-Institut für Physik MünchenD-80805 Germany Instituto de Astrofísica de Andalucía-CSIC Glorieta de la Astronomía s/n Granada18008 Spain Università di Pisa INFN Pisa PisaI-56126 Italy Universitat de Barcelona ICCUB IEEC-UB BarcelonaE-08028 Spain Armenian MAGIC Group A. Alikhanyan National Science Laboratory Yerevan0036 Armenia Centro de Investigaciones Energéticas Medioambientales y Tecnológicas MadridE-28040 Spain INFN MAGIC Group INFN Sezione di Torino Università degli Studi di Torino TorinoI-10125 Italy INFN MAGIC Group INFN Sezione di Bari Dipartimento Interateneo di Fisica dell’Università e del Politecnico di Bari BariI-70125 Italy Croatian MAGIC Group University of Rijeka Department of Physics Rijeka51000 Croatia Universität Würzburg WürzburgD-97074 Germany Finnish MAGIC Group Finnish Centre for Astronomy with ESO University of Turku TurkuFI-20014 Finland Departament de Física CERES-IEEC Universitat Autònoma de Barcelona BellaterraE-08193

Imaging Atmospheric Cherenkov telescopes (IACTs) are designed to detect cosmic gamma rays. As a by-product, IACTs detect Cherenkov flashes generated by millions of hadronic air showers every night. We present the proton energy spectrum from several hundred GeV to several hundred TeV, retrieved from the hadron induced showers detected by the MAGIC telescopes. The protons are discriminated from He and other heavy nuclei by means of using machine learning classification. The energy estimation is based on a specially developed deep neural network regressor. In the last decade, Deep Learning methods gained much interest in the scientific community for their ability to extract complex relations in data and process large datasets in a short time. The proton energy spectrum obtained in this work is compared to the spectra obtained by dedicated cosmic ray experiments. © Copyright owned by the author(s).

关键词： Cosmology

来源：评论

学校读者我要写书评

暂无评论

Miocene Tropical Storms: Carbonate Framework Approaches and Geochemistry Proxies in a Reservoir Model

SSRN

引用

SSRN 2023年

作者： Aguilera, Orangel de Araújo, Olga Oliveira M. Lopes, Ricardo Tadeu Cohen, Marcelo Sierra, Dayana Alvarado Guimarães, Beatriz Teixeira Linhares, Ana Paula Rodriguez, Félix Moreira, Manuel Díaz, Rut Gama Filho, Hamilton Santos Jose Dos Anjos, Marcelino Lima, Daniel dos Santos Silva, Julianny Giraud, Marie Joelle Kütter, Vinicius Tavares Fluminense Federal University Paleoecology and Global Changes Laboratory Rua Marcos Waldemar de Freitas Reis S/no Campus Gragoatá Bloco M Lab. 110 Niterói Rio de JaneiroCEP. 24210-201 Brazil Federal University of Rio de Janeiro Nuclear Instrumentation Laboratory Nuclear Engineering Program/COPPE Cidade Universitária Rio de Janeiro Av. Horácio Macedo 21941-450 Brazil Federal University of Pará Geoscience Institute Pará Belém Brazil Museu Paraense Emilio Goeldi Earth Sciences and Ecology Coordination Pará BelémCEP.66077-830 Brazil Smithsonian Tropical Research Institute Box 0843- Balboa03092 Panama Fluminense Federal University Institute of Chemistry Environmental Geochemistry Department Niterói Rio de JaneiroCEP. 24020-150 Brazil Rio de Janeiro State University Instituto de Física Armando Dias Tavares Department of Applied Physics Thermodynamics Rio de Janeiro Brazil Ceará Crato63100-000 Brazil Universidad Pedagógica y Tecnológica de Colómbia Bogotá Colombia

The Bragantina Platform is an important sedimentary package that occurs in NW Brazil, typically around the equatorial western Atlantic coast. Most of the latest Neogene succession of this carbonate-siliciclastic platform is made up of the late early to late middle Miocene Pirabas Formation, which is divided into pre-Amazonian and pre-Panamanian Isthmus stages (that is, before the establishment of the transcontinental drainage of the Amazon River and the closure of the interoceanic seaway between the Atlantic and the Pacific oceans). High-energy coastal storms and hurricanes as a consequences of trade wind anomalies during the Neogene impacted the shallow-water inner marine heterozoan reef deposits of the Pirabas Formation. A chaotic superposition of benthic infauna and epifauna, and of demersal and pelagic species in the same section was analyzed using petrography, petrophysics, micro- and macropaleontology, taphonomy, and geochemistry in order to understand sedimentary and paleoenvironmental processes. The high-energy wave environment caused severe damage to the shallow-water reef, and the resulting chaotic reef architecture, together with carbonate diagenesis, was favorable for the porosity and permeability of oil and gas reservoirs in the area. © 2023, The Authors. All rights reserved.

关键词： Climate change

来源：评论

学校读者我要写书评

暂无评论

Transverse single-spin asymmetry of midrapidity π0 and η mesons in p+Au and p+Al collisions at sNN=200 GeV

引用

Physical Review D 2023年第11期107卷 112004-112004页

作者： N. J. Abdulameer U. Acharya C. Aidala Y. Akiba M. Alfred V. Andrieux N. Apadula H. Asano B. Azmoun V. Babintsev N. S. Bandara K. N. Barish S. Bathe A. Bazilevsky M. Beaumier R. Belmont A. Berdnikov Y. Berdnikov L. Bichon B. Blankenship D. S. Blau J. S. Bok V. Borisov M. L. Brooks J. Bryslawskyj V. Bumazhnov S. Campbell V. Canoa Roman R. Cervantes M. Chiu C. Y. Chi I. J. Choi J. B. Choi Z. Citron M. Connors R. Corliss Y. Corrales Morales N. Cronin M. Csanád T. Csörgő T. W. Danley M. S. Daugherity G. David C. T. Dean K. DeBlasio K. Dehmelt A. Denisov A. Deshpande E. J. Desmond A. Dion D. Dixit V. Doomra J. H. Do A. Drees K. A. Drees J. M. Durham A. Durum H. En’yo A. Enokizono R. Esha B. Fadem W. Fan N. Feege D. E. Fields M. Finger, Jr. M. Finger D. Firak D. Fitzgerald S. L. Fokin J. E. Frantz A. Franz A. D. Frawley Y. Fukuda P. Gallus C. Gal P. Garg H. Ge M. Giles F. Giordano Y. Goto N. Grau S. V. Greene M. Grosse Perdekamp T. Gunji H. Guragain T. Hachiya J. S. Haggerty K. I. Hahn H. Hamagaki H. F. Hamilton J. Hanks S. Y. Han M. Harvey S. Hasegawa T. O. S. Haseler T. K. Hemmick X. He J. C. Hill K. Hill A. Hodges R. S. Hollis K. Homma B. Hong T. Hoshino N. Hotvedt J. Huang K. Imai M. Inaba A. Iordanova D. Isenhower D. Ivanishchev B. V. Jacak M. Jezghani X. Jiang Z. Ji B. M. Johnson D. Jouan D. S. Jumper J. H. Kang D. Kapukchyan S. Karthas D. Kawall A. V. Kazantsev V. Khachatryan A. Khanzadeev A. Khatiwada C. Kim E.-J. Kim M. Kim T. Kim D. Kincses A. Kingan E. Kistenev J. Klatsky P. Kline T. Koblesky D. Kotov L. Kovacs S. Kudo B. Kurgyis K. Kurita Y. Kwon J. G. Lajoie D. Larionova A. Lebedev S. Lee S. H. Lee M. J. Leitch Y. H. Leung N. A. Lewis S. H. Lim M. X. Liu X. Li V.-R. Loggins D. A. Loomis K. Lovasz D. Lynch S. Lökös T. Majoros Y. I. Makdisi M. Makek V. I. Manko E. Mannel M. McCumber P. L. McGaughey D. McGlinchey C. McKinney M. Mendoza A. C. Mignerey A. Milov D. K. Mishra J. T. Mitchell M. Mitrankova Iu. Mitrankov G. Mitsuka S. Miyasaka S. Mizuno M. M. Mondal P. Montuenga T. Moon D. P. Morrison A. Muhammad B. Debrecen University H-4010 Debrecen Egyetem tér 1 Hungary Georgia State University Atlanta Georgia 30303 USA Department of Physics University of Michigan Ann Arbor Michigan 48109-1040 USA RIKEN Nishina Center for Accelerator-Based Science Wako Saitama 351-0198 Japan RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973-5000 USA Department of Physics and Astronomy Howard University Washington DC 20059 USA Iowa State University Ames Iowa 50011 USA Kyoto University Kyoto 606-8502 Japan Physics Department Brookhaven National Laboratory Upton New York 11973-5000 USA IHEP Protvino State Research Center of Russian Federation Institute for High Energy Physics Protvino 142281 Russia Department of Physics University of Massachusetts Amherst Massachusetts 01003-9337 USA University of California-Riverside Riverside California 92521 USA Baruch College City University of New York New York New York 10010 USA University of Colorado Boulder Colorado 80309 USA Physics and Astronomy Department University of North Carolina at Greensboro Greensboro North Carolina 27412 USA Saint Petersburg State Polytechnic University St. Petersburg 195251 Russia Vanderbilt University Nashville Tennessee 37235 USA National Research Center “Kurchatov Institute” Moscow 123098 Russia National Research Nuclear University MEPhI Moscow Engineering Physics Institute Moscow 115409 Russia New Mexico State University Las Cruces New Mexico 88003 USA Los Alamos National Laboratory Los Alamos New Mexico 87545 USA Columbia University New York New York 10027 and Nevis Laboratories Irvington New York 10533 USA Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794-3800 USA University of Illinois at Urbana-Champaign Urbana Illinois 61801 USA Jeonbuk National University Jeonju 54896 Korea Weizmann Institute Rehovot 76100 Israel ELTE Eötvös Loránd University H-1117 Budapest Pázmány P. s. 1/A Hungary MATE Laboratory of

Presented are the first measurements of the transverse single-spin asymmetries (AN) for neutral pions and eta mesons in p+Au and p+Al collisions at sNN=200 GeV in the pseudorapidity range |η|<0.35 with the PHENIX detector at the Relativistic Heavy Ion Collider. The asymmetries are consistent with zero, similar to those for midrapidity neutral pions and eta mesons produced in p+p collisions. These measurements show no evidence of additional effects that could potentially arise from the more complex partonic environment present in proton-nucleus collisions.

关键词： Beam polarization Hadron-hadron interactions Polarization phenomena Relativistic heavy-ion collisions Mesons Pions Polarization Spin

来源：评论

学校读者我要写书评

暂无评论

Transverse single-spin asymmetry of charged hadrons at forward and backward rapidity in polarized p+p, p+Al, and p+Au collisions at sNN=200 GeV

引用

Physical Review D 2023年第7期108卷 072016-072016页

Reported here are transverse single-spin asymmetries (AN) in the production of charged hadrons as a function of transverse momentum (pT) and Feynman-x (xF) in polarized p↑+p, p↑+Al, and p↑+Au collisions at sNN=200 GeV. The measurements have been performed at forward and backward rapidity (1.4<|η|<2.4) over the range of 1.5 GeV/c0) in p↑+p collisions, whereas the p↑+Al and p↑+Au results show smaller asymmetries. This finding provides new opportunities to investigate the origin of transverse single-spin asymmetries and a tool to study nuclear effects in p+A collisions.

关键词： Beam polarization Hadron-hadron interactions Polarization phenomena Relativistic heavy-ion collisions Hadrons Spin

来源：评论

学校读者我要写书评

暂无评论

The broadband 3-year monitoring of the blazar 1ES 1959+650: a SED analysis of the low state

The broadband 3-year monitoring of the blazar 1ES 1959+650: ...

引用

38th International Cosmic Ray Conference, ICRC 2023

作者： Nanci, Cristina Nigro, Cosimo Arcaro, Cornelia Prandini, Elisa Dorner, Daniela Zanin, Roberta Arbet-Engels, Axel Rosillo, Mireia Nievas D'Ammando, Filippo Bronzini, Ettore Sakurai, Shunsuke Abe, H. Abe, S. Abhir, J. Acciari, V.A. Agudo, I. Aniello, T. Ansoldi, S. Antonelli, L.A. Arbet Engels, A. Arcaro, C. Artero, M. Asano, K. Baack, D. Babic, A. Baquero, A. de Almeida, U. Barres Barrio, J.A. Batkovic, I. Baxter, J. Becerra González, J. Bednarek, W. Bernardini, E. Bernardos, M. Bernete, J. Berti, A. Besenrieder, J. Bigongiari, C. Biland, A. Blanch, O. Bonnoli, G. Bošnjak, Z. Bronzini, E. Burelli, I. Busetto, G. Campoy-Ordaz, A. Carosi, A. Carosi, R. Carretero-Castrillo, M. Castro-Tirado, A.J. Ceribella, G. Chai, Y. Chilingarian, A. Cifuentes, A. Cikota, S. Colombo, E. Contreras, J.L. Cortina, J. Covino, S. D'Amico, G. D'Ammando, F. D'Elia, V. Da Vela, P. Dazzi, F. De Angelis, A. De Lotto, B. Del Popolo, A. Delfino, M. Delgado, J. Delgado Mendez, C. Depaoli, D. Di Pierro, F. Di Venere, L. Dominis Prester, D. Donini, A. Dorner, D. Doro, M. Elsaesser, D. Emery, G. Escudero, J. Fariña, L. Fattorini, A. Foffano, L. Font, L. Fröse, S. Fukami, S. Fukazawa, Y. García López, R.J. Garczarczyk, M. Gasparyan, S. Gaug, M. Giesbrecht Paiva, J.G. Giglietto, N. Giordano, F. Gliwny, P. Godinovic, N. Grau, R. Green, D. Green, J.G. Hadasch, D. Hahn, A. Hassan, T. Heckmann, L. Herrera, J. Hrupec, D. Hütten, M. Imazawa, R. Inada, T. Iotov, R. Ishio, K. Jiménez Martínez, I. Jormanainen, J. Kerszberg, D. Kluge, G.W. Kobayashi, Y. Kouch, P.M. Kubo, H. Kushida, J. Láinez Lezáun, M. Lamastra, A. Lelas, D. Leone, F. Lindfors, E. Linhoff, L. Lombardi, S. Longo, F. López-Coto, R. López-Moya, M. López-Oramas, A. Loporchio, S. Lorini, A. Lyard, E. Machado de Oliveira Fraga, B. Majumdar, P. Makariev, M. Maneva, G. Mang, N. Manganaro, M. Mangano, S. Mannheim, K. Mariotti, M. Martínez, M. MartínezChicharro, M. Mas-Aguilar, A. Mazin, D. Menchiari, S. Mender, S. Micanovic, S. Miceli, D. Miener, T. Miranda, J.M. The University of Tokyo Kashiwa Chiba277-8582 Japan ETH Zürich ZürichCH-8093 Switzerland Instituto de Astrofísica de Canarias Dpto. de Astrofísica Universidad de La Laguna Tenerife La LagunaE-38200 Spain Instituto de Astrofísica de Andalucía-CSIC Glorieta de la Astronomía s/n Granada18008 Spain RomeI-00136 Italy Università di Udine INFN Trieste UdineI- 33100 Italy Max-Planck-Institut für Physik MünchenD-80805 Germany Università di Padova INFN PadovaI-35131 Italy Bellaterra BarcelonaE-08193 Spain Technische Universität Dortmund DortmundD-44221 Germany Zagreb10000 Croatia IPARCOS Institute and EMFTEL Department Universidad Complutense de Madrid MadridE-28040 Spain Rio de Janeiro22290-180 Brazil University of Lodz Faculty of Physics and Applied Informatics Department of Astrophysics Lodz90-236 Poland Centro de Investigaciones Energéticas Medioambientales y Tecnológicas MadridE-28040 Spain Departament de Física CERES-IEEC Universitat Autònoma de Barcelona Bellaterra E-08193 Spain Università di Pisa INFN Pisa PisaI-56126 Italy Universitat de Barcelona ICCUB IEEC-UB BarcelonaE-08028 Spain Armenian MAGIC Group A. Alikhanyan National Science Laboratory Yerevan0036 Armenia Department for Physics and Technology University of Bergen Norway INFN MAGIC Group INFN Sezione di Catania Dipartimento di Fisica e Astronomia University of Catania CataniaI-95123 Italy INFN MAGIC Group INFN Sezione di Torino Università degli Studi di Torino TorinoI-10125 Italy INFN MAGIC Group INFN Sezione di Bari Dipartimento Interateneo di Fisica dell'Università e del Politecnico di Bari BariI-70125 Italy Croatian MAGIC Group University of Rijeka Faculty of Physics Rijeka51000 Croatia Universität Würzburg WürzburgD-97074 Germany University of Geneva Chemin d'Ecogia 16 VersoixCH-1290 Switzerland Japanese MAGIC Group Physics Program Graduate School of Advanced Science and Engineering Hiroshima University Hiroshima739-8526 Japan Zeuthe

Blazars' Spectral Energy Distribution (SED) consists of two components. In a leptonic interpretation, the low-energy bump is due to synchrotron radiation from accelerated electrons while the high-energy one is produced via inverse Compton scattering of the electrons by lower-energy photons. These come from the synchrotron radiation produced by the same population of electrons emitting at low energy (Synchrotron Self-Compton, SSC, scenario) or from an external photon field. According to hadronic models, the high-energy emission is due to processes involving the protons in the source. Multiwavelength (MWL) long-term monitoring of blazars is key since the SED modelling over time allows the study of the radiative processes during different source states. The blazar 1ES 1959+650 represents an ideal laboratory for that, being bright at all wavelengths and located at low redshift (z=0.047) allowing its detection up to TeV energies. Also, it underwent some flaring episodes in the past. Long-term monitoring of 1ES 1959+650 is ongoing under the coordination of the MAGIC Collaboration. During the last years, the source is experiencing its lowest state ever reached, mainly at very high energies (VHE;E > 100 GeV). This contribution presents the MAGIC+MWL observations of the last 3 years, and the preliminary study focusing on an SSC interpretation of the data. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： Synchrotron radiation

来源：评论

学校读者我要写书评

暂无评论

Correlations between Panoramic Imagery and Gamma-Ray Background in an Urban Area

Correlations between Panoramic Imagery and Gamma-Ray Backgro...

引用

IEEE Symposium on nuclear Science (NSS/MIC)

作者： M. S. Bandstra B. J. Quiter K. J. Bilton J. C. Curtis S. Goldenberg T. H. Y. Joshi M. Salathe Applied Nuclear Physics Program at Lawrence Berkeley National Laboratory Berkeley CA USA Department of Nuclear Engineering University of California Berkeley CA USA Computer Science Department The College of William and Mary Williamsburg VA USA

ISBN: (数字)9781728141640

ISBN: (纸本)9781728141657

When searching for radiological sources in an urban area, a vehicle-borne detector system will often measure complex, varying backgrounds primarily from natural gamma-ray sources. Much work has been focused on developing spectral algorithms that account for these backgrounds in order to minimize false positive rates without sacrificing the sensitivity. However, information about the environment surrounding the detector system might also provide useful clues about the expected background, thus improving sensitivity. Recent work has focused on extensive measuring and modeling of urban areas with the goal of understanding how these complex backgrounds arise. This work presents an analysis of panoramic video images and gamma-ray background data collected in Oakland, California by the Radiological Multi-sensor Analysis Platform (RadMAP) vehicle. Features were extracted from the panoramic images by semantically labeling the images and then convolving the labeled regions with the detector response. A linear model was used to relate the image-derived responses to gamma-ray spectral features derived using Non-negative Matrix Factorization (NMF). We show that some gamma-ray background features correlate highly with image-derived features such as sky and buildings.

关键词： Gamma-rays Mathematical model Feature extraction Area measurement Cameras Urban areas Matrix decomposition

来源：评论

学校读者我要写书评

暂无评论

Improving constraints on gluon spin-momentum correlations in transversely polarized protons via midrapidity open-heavy-flavor electrons in p↑+p collisions at s=200 GeV

引用

Physical Review D 2023年第5期107卷 052012-052012页

作者： N. J. Abdulameer U. Acharya C. Aidala Y. Akiba M. Alfred V. Andrieux N. Apadula H. Asano B. Azmoun V. Babintsev N. S. Bandara K. N. Barish S. Bathe A. Bazilevsky M. Beaumier R. Belmont A. Berdnikov Y. Berdnikov L. Bichon B. Blankenship D. S. Blau J. S. Bok V. Borisov M. L. Brooks J. Bryslawskyj V. Bumazhnov S. Campbell V. Canoa Roman R. Cervantes M. Chiu C. Y. Chi I. J. Choi J. B. Choi Z. Citron M. Connors R. Corliss Y. Corrales Morales N. Cronin M. Csanád T. Csörgő T. W. Danley M. S. Daugherity G. David C. T. Dean K. DeBlasio K. Dehmelt A. Denisov A. Deshpande E. J. Desmond A. Dion D. Dixit V. Doomra J. H. Do A. Drees K. A. Drees J. M. Durham A. Durum H. En’yo A. Enokizono R. Esha S. Esumi B. Fadem W. Fan N. Feege D. E. Fields M. Finger, Jr. M. Finger D. Firak D. Fitzgerald S. L. Fokin J. E. Frantz A. Franz A. D. Frawley Y. Fukuda P. Gallus C. Gal P. Garg H. Ge M. Giles F. Giordano Y. Goto N. Grau S. V. Greene M. Grosse Perdekamp T. Gunji H. Guragain T. Hachiya J. S. Haggerty K. I. Hahn H. Hamagaki H. F. Hamilton J. Hanks S. Y. Han M. Harvey S. Hasegawa T. O. S. Haseler T. K. Hemmick X. He J. C. Hill K. Hill A. Hodges R. S. Hollis K. Homma B. Hong T. Hoshino N. Hotvedt J. Huang K. Imai M. Inaba A. Iordanova D. Isenhower D. Ivanishchev B. V. Jacak M. Jezghani X. Jiang Z. Ji B. M. Johnson D. Jouan D. S. Jumper J. H. Kang D. Kapukchyan S. Karthas D. Kawall A. V. Kazantsev V. Khachatryan A. Khanzadeev A. Khatiwada C. Kim E.-J. Kim M. Kim T. Kim D. Kincses A. Kingan E. Kistenev J. Klatsky P. Kline T. Koblesky D. Kotov L. Kovacs S. Kudo B. Kurgyis K. Kurita Y. Kwon J. G. Lajoie D. Larionova A. Lebedev S. Lee S. H. Lee M. J. Leitch Y. H. Leung N. A. Lewis S. H. Lim M. X. Liu X. Li V.-R. Loggins D. A. Loomis K. Lovasz D. Lynch S. Lökös T. Majoros Y. I. Makdisi M. Makek V. I. Manko E. Mannel M. McCumber P. L. McGaughey D. McGlinchey C. McKinney M. Mendoza A. C. Mignerey A. Milov D. K. Mishra J. T. Mitchell M. Mitrankova Iu. Mitrankov G. Mitsuka S. Miyasaka S. Mizuno A. K. Mohanty M. M. Mondal P. Montuenga T. Moon D. P. M Debrecen University H-4010 Debrecen Egyetem tér 1 Hungary Georgia State University Atlanta Georgia 30303 USA Department of Physics University of Michigan Ann Arbor Michigan 48109-1040 USA RIKEN Nishina Center for Accelerator-Based Science Wako Saitama 351-0198 Japan RIKEN BNL Research Center Brookhaven National Laboratory Upton New York 11973-5000 USA Department of Physics and Astronomy Howard University Washington DC 20059 USA Iowa State University Ames Iowa 50011 USA Kyoto University Kyoto 606-8502 Japan Physics Department Brookhaven National Laboratory Upton New York 11973-5000 USA IHEP Protvino State Research Center of Russian Federation Institute for High Energy Physics Protvino 142281 Russia Department of Physics University of Massachusetts Amherst Massachusetts 01003-9337 USA University of California-Riverside Riverside California 92521 USA Baruch College City University of New York New York New York 10010 USA University of Colorado Boulder Colorado 80309 USA Physics and Astronomy Department University of North Carolina at Greensboro Greensboro North Carolina 27412 USA Saint Petersburg State Polytechnic University St. Petersburg 195251 Russia Vanderbilt University Nashville Tennessee 37235 USA National Research Center “Kurchatov Institute ” Moscow 123098 Russia National Research Nuclear University MEPhI Moscow Engineering Physics Institute Moscow 115409 Russia New Mexico State University Las Cruces New Mexico 88003 USA Los Alamos National Laboratory Los Alamos New Mexico 87545 USA Columbia University New York New York 10027 and Nevis Laboratories Irvington New York 10533 USA Department of Physics and Astronomy Stony Brook University SUNY Stony Brook New York 11794-3800 USA University of Illinois at Urbana-Champaign Urbana Illinois 61801 USA Jeonbuk National University Jeonju 54896 Korea Weizmann Institute Rehovot 76100 Israel ELTE Eötvös Loránd University H-1117 Budapest Pázmány P. s. 1/A Hungary MATE Laboratory of F

Polarized proton-proton collisions provide leading-order access to gluons, presenting an opportunity to constrain gluon spin-momentum correlations within transversely polarized protons and enhance our understanding of the three-dimensional structure of the proton. Midrapidity open-heavy-flavor production at s=200 GeV is dominated by gluon-gluon fusion, providing heightened sensitivity to gluon dynamics relative to other production channels. Transverse single-spin asymmetries of positrons and electrons from heavy-flavor hadron decays are measured at midrapidity using the PHENIX detector at the Relativistic Heavy Ion Collider. These charge-separated measurements are sensitive to gluon correlators that can in principle be related to gluon orbital angular momentum via model calculations. Explicit constraints on gluon correlators are extracted for two separate models, one of which had not been constrained previously.

关键词： Beam polarization Hadron-hadron interactions Polarization phenomena Relativistic heavy-ion collisions Electrons Positrons Spin

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：