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Web-based Evaluation of Information Visualization

Procedia Manufacturing 2015年 3卷 5527-5534页

作者： Nazemi, Kawa Burkhardt, Dirk Hoppe, David Nazemi, Mariam Kohlhammer, Jörn Fraunhofer Institute for Computer Graphics Research (IGD) Fraunhoferstr 5 64283 Darmstadt Germany Technische Universität (TU) Darmstadt Department of Computer Science GRIS Fraunhoferstr 5 64283 Darmstadt Germany Technische Universität (TU) Darmstadt Department of Psychology Alexanderstr 10 64283 Darmstadt Germany University of Hagen student of the Faculty of Psychology Universitätsstr 33 58097 Hagen Germany

Information visualization is strongly related to human perception, human behavior, and in particular human interaction. It is a discipline that focuses on human to enable him gathering insights, knowledge, and solving various and heterogeneous tasks. The human-centered characteristic of information visualization requires valid and proper user studies that improve the system or validate their benefits. New methods, techniques, or approaches of information visualization are commonly evaluated. However, the evaluation is either time and cost consuming or they are made minimum resources that leads to results, which may not be valid. In particular the number of participants is commonly restricted and does not enable a valid assumption about the results. Thus performance measures plays a key role in information visualization, existing web-survey tools are not convenient. We introduce in this paper a new method that enables web-based evaluations of information visualization systems. Our main contribution is the enhancement of web-based survey tools with performance measures. Our approach enables the measurement of task-completion time, correctness of solved tasks, and includes a number of pre- and post-questionnaires. © 2015 The Authors

关键词： Evaluation Methods Evaluation Tools Human Perception Information Visualization User Study Web-based Evaluation

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Thermal simulation of heterogeneous GaN/ InP/silicon 3DIC stacks

Thermal simulation of heterogeneous GaN/ InP/silicon 3DIC st...

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International 3D Systems Integration Conference, 3DIC 2015

作者： Harris, T. Robert Wyers, Eric J. Lee, Wang Graham, Samuel Pavlidis, Georges Franzon, Paul D. Davis, W. Rhett Department of Electrical and Computer Engineering North Carolina State University RaleighNC United States Department of Engineering and Computer Science Tarleton State University StephenvilleTX United States Calibre Design Solutions Mentor Graphics Corporation FremontCA United States Department of Mechanical Engineering Georgia Institute of Technology AtlantaGA United States

ISBN: (纸本)9781467393850

Integration of materials such as GaN, InP, SiGe, and Si is a natural extension of the 3D-IC perspective and provides a unique solution for high performance circuits. In this approach, application of a component is no longer dependent on semiconductor material selection. In this paper, preliminary results are presented which examine the thermal performance of the technology. A thermal analysis prototype solution in Mentor graphics™ Calibre® provides surface heat maps based on IC layout, material property, and geometric configuration files. Chiplets are connected by heterogeneous interconnect (HIC). Differences in thermal performance of GaN and InP chiplets are explored by varying the number of HICs. Two methods for building up the model of a test chip are compared. One method uses custom scripts to place discrete blocks in the model to represent HICs, while the other uses thermal material properties extracted from the layout. Measurements presented confirm simulated results. © 2015 IEEE.

关键词： Gallium nitride

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Geometric k Shortest Paths 15

Geometric k Shortest Paths

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Annual ACM-Society for Industrial and Applied Mathmatics Symposium on Discrete Algorithms

作者： Sylvester Eriksson-Bique John Hershberger Valentin Polishchuk Bettina Speckmann Subhash Suri Topi Talvitie Kevin Verbeek Hakan Yildiz Courant Institute NYU Mentor Graphics Corporation Communications and Transport Systems ITN Linkoping University Dept. of Mathematics and Computer Science TU Eindhoven Computer Science University of California Santa Barbara Computer Science University of Helsinki

ISBN: (纸本)9781510813311

We consider the problem of computing k shortest paths in a two-dimensional environment with polygonal obstacles, where the jth path, for 1 ≤ j ≤ k, is the shortest path in the free space that is also homotopically distinct from each of the first j - 1 paths. In fact, we consider a more general problem: given a source point s, construct a partition of the free space, called the kth shortest path map (k-SPM), in which the homotopy of the kth shortest path in a region has the same structure. Our main combinatorial result establishes a tight bound of Θ(k~2h + kn) on the worst-case complexity of this map. We also describe an O((k~3h + k~2n) log (kn)) time algorithm for constructing the map. In fact, the algorithm constructs the jth map for every j ≤ k. Finally, we present a simple visibility-based algorithm for computing the k shortest paths between two fixed points. This algorithm runs in O(m log n + k) time and uses O(m + k) space, where m is the size of the visibility graph. This latter algorithm can be extended to compute k shortest simple (non-self-intersecting) paths, taking O(k~2m(m + kn) log(kn)) time. We invite the reader to play with our applet demonstrating k-SPMs [10].

关键词： shortest path Paths maps applets Byways MAPPING(MATHEMATICAL) algorithms Homotopy

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A Search for Cosmic Neutrino and Gamma-Ray Emitting Transients in 7.3 Years of ANTARES and Fermi LAT Data

arXiv

引用

arXiv 2019年

作者： Solares, H.A. Ayala Cowen, D.F. DeLaunay, J.J. Fox, D.B. Keivani, A. Mostafá, M. Murase, K. Turley, C.F. Albert, Amon A. André, M. Anghinolfi, M. Anton, G. Ardid, M. Aubert, J.-J. Aublin, J. Baret, B. Barrios-Martí, J. Basa, S. Belhorma, B. Bertin, V. Biagi, S. Bormuth, R. Boumaaza, J. Bourret, S. Bouta, M. Bouwhuis, M.C. Branzaş, H. Bruijn, R. Brunner, J. Busto, J. Capone, A. Caramete, L. Carr, J. Celli, S. Chabab, M. El Moursli, R. Cherkaoui Chiarusi, T. Circella, M. Coleiro, A. Colomer, M. Coniglione, R. Costantini, H. Coyle, P. Creusot, A. Díaz, A.F. Deschamps, A. Distefano, C. Di Palma, I. Domi, A. Donà, R. Donzaud, C. Dornic, D. Drouhin, D. Eberl, T. El Bojaddaini, I. El Khayati, N. Elsässer, D. Enzenhöfer, A. Ettahiri, A. Fassi, F. Fermani, P. Ferrara, G. Fusco, L. Gay, P. Glotin, H. Gozzini, R. Grégoire, T. Ruiz, R. Gracia Graf, K. Hallmann, S. van Haren, H. Heijboer, A.J. Hello, Y. Hernández-Rey, J.J. Hößl, J. Hofestädt, J. Illuminati, G. James, C.W. de Jong, M. Jongen, M. Kadler, M. Kalekin, O. Katz, U. Khan-Chowdhury, N.R. Kouchner, A. Kreter, M. Kreykenbohm, I. Kulikovskiy, V. Lahmann, R. Le Breton, R. Lefèvre, D. Leonora, E. Levi, G. Lincetto, M. Lopez-Coto, D. Lotze, M. Loucatos, S. Maggi, G. Marcelin, M. Margiotta, A. Marinelli, A. Martínez-Mora, J.A. Mele, R. Melis, K. Migliozzi, P. Moussa, A. Navas, S. Nezri, E. Nielsen, C. Nuñez, A. Organokov, M. Pavalaş, G.E. Pellegrino, C. Perrin-Terrin, M. Piattelli, P. Popa, V. Pradier, T. Quinn, L. Racca, C. Randazzo, N. Riccobene, G. Sánchez-Losa, A. Salah-Eddine, A. Salvadori, I. Samtleben, D.F.E. Sanguineti, M. Sapienza, P. Schüssler, F. Spurio, M. Stolarczyk, Th. Taiuti, M. Tayalati, Y. Thakore, T. Trovato, A. Vallage, B. van Elewyck, V. Versari, F. Viola, S. Vivolo, D. Wilms, J. Zaborov, D. Zornoza, J.D. Zúñiga, J. Department of Physics Pennsylvania State University University ParkPA16802 United States Center for Particle & Gravitational Astrophysics Institute for Gravitation and the Cosmos PennsylvaniaState University University ParkPA16802 United States Department of Astronomy & Astrophysics Pennsylvania State University University ParkPA16802 United States Center for Theoretical & Observational Cosmology Institute for Gravitation and the Cosmos Pennsylvania State University University ParkPA16802 United States Université de Strasbourg CNRS IPHC UMR 7178 StrasbourgF-67000 France Technical University of Catalonia Laboratory of Applied Bioacoustics Rambla Exposició Vilanova i la Geltrú Barcelona08800 Spain INFN - Sezione di Genova Via Dodecaneso 33 Genova16146 Italy Friedrich-Alexander-Universität Erlangen-Nürnberg Erlangen Centre for Astroparticle Physics Erwin-Rommel-Str. 1 Erlangen91058 Germany Universitat Politècnica de València C/ Paranimf 1 Gandia46730 Spain Aix Marseille Univ CNRS/IN2P3 CPPM Marseille France APC Univ Paris Diderot CNRS/IN2P3 CEA/Irfu Obs de Paris Sorbonne Paris Cité France c/ Catedrático José Beltrán 2 PaternaValenciaE-46980 Spain LAM - Laboratoire d’Astrophysique de Marseille Pôle de l’Étoile Site de Château-Gombert rue Frédéric Joliot-Curie 38 Marseille Cedex 1313388 France National Center for Energy Sciences and Nuclear Techniques B.P.1382 R. P. Rabat10001 Morocco Via S. Sofia 62 Catania95123 Italy Nikhef Science Park Amsterdam Netherlands Huygens-Kamerlingh Onnes Laboratorium Universiteit Leiden Netherlands University Mohammed V in Rabat Faculty of Sciences 4 av. Ibn Battouta B.P. 1014 RabatR.P.10000 Morocco PC Univ Paris Diderot CNRS/IN2P3 CEA/Irfu Obs de Paris Sorbonne Paris Cité France University Mohammed I Laboratory of Physics of Matter and Radiations B.P.717 Oujda6000 Morocco Institute of Space Science M agureleRO-077125 Bucharest Romania Universiteit van Amsterdam Instituut voor Hoge-

We analyze 7.3 years of ANTARES high-energy neutrino and Fermi LAT γ-ray data in search of cosmic neutrino + γ-ray (ν+γ) transient sources or source populations. Our analysis has the potential to detect either individual ν+γ transient sources (durations δt ∼5% of the observed gamma-coincident neutrinos in the track data at 90% confidence. Applying our analysis to the unscrambled data reveals no individual ν+γ events of high significance;two ANTARES track + Fermi γ-ray events are identified that exceed a once per decade false alarm rate threshold (p = 17%). No evidence for subthreshold ν+γ source populations is found among the track (p = 39%) or cascade (p = 60%) events. Exploring a possible correlation of high-energy neutrino directions with Fermi γ-ray sky brightness identified in previous work yields no added support for this correlation. While TXS 0506+056, a blazar and variable (non-transient) Fermi γ-ray source, has recently been identified as the first source of high-energy neutrinos, the challenges in reconciling observations of the Fermi γ-ray sky, the IceCube high-energy cosmic neutrinos, and ultra-high energy cosmic rays using only blazars suggest a significant contribution by other source populations. Searches for transient sources of high-energy neutrinos thus remain interesting, with the potential for either neutrino clustering or multimessenger coincidence searches to lead to discovery of the first ν+γ transients. Copyright © 2019, The Authors. All rights reserved.

关键词： Gamma rays

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A Deep-Neuro-Fuzzy approach for estimating the interaction forces in Robotic surgery

A Deep-Neuro-Fuzzy approach for estimating the interaction f...

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IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)

作者： Angelica I. Aviles Samar M. Alsaleh Eduard Montseny Pilar Sobrevilla Alicia Casals Research Center of Biomedical Engineering Universitat Politècnica de Cataluya Spain Department of Computer Science George Washington University U.S.A. Automatic Control Department Universitat Politècnica de Cataluya Spain Department of Applied Mathematics II Universitat Politècnica de Cataluya Spain Institute for Bioengineering of Catalonia Spain

ISBN: (纸本)9781509006274

Fuzzy theory was motivated by the need to create human-like solutions that allow representing vagueness and uncertainty that exist in the real-world. These capabilities have been recently further enhanced by deep learning since it allows converting complex relation between data into knowledge. In this paper, we present a novel Deep-Neuro-Fuzzy strategy for unsupervised estimation of the interaction forces in Robotic Assisted Minimally Invasive scenarios. In our approach, the capability of Neuro-Fuzzy systems for handling visual uncertainty, as well as the inherent imprecision of real physical problems, is reinforced by the advantages provided by Deep Learning methods. Experiments conducted in a realistic setting have demonstrated the superior performance of the proposed approach over existing alternatives. More precisely, our method increased the accuracy of the force estimation and compared favorably to existing state of the art approaches, offering a percentage of improvement that ranges from about 35% to 85%.

关键词： Force Robots Uncertainty Estimation Visualization Three-dimensional displays Machine learning

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Effect of the Jupiter magnetosphere on the cosmic ray protons measured with the PAMELA experiment 35

Effect of the Jupiter magnetosphere on the cosmic ray proton...

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35th International Cosmic Ray Conference, ICRC 2017

作者： Ricci, M. Pizzella, G. Martucci, M. Bruno, A. Di Felice, V. Marcelli, N. Adriani, O. Barbarino, G.C. Bazilevskaya, G.A. Bellotti, R. Boezio, M. Bogomolov, E.A. Bongi, M. Bonvicini, V. Cafagna, F. Campana, D. Carlson, P. Casolino, M. Castellini, G. De Santis, C. Galper, A.M. Karelin, A.V. Koldashov, S.V. Koldobskiy, S. Krutkov, S.Y. Kvashnin, A.N. Leonov, A. Malakhov, V. Marcelli, L. Mayorov, A.G. Menn, W. Mergè, M. Mikhailov, V.V. Mocchiutti, E. Monaco, A. Mori, N. Munini, R. Osteria, G. Panico, B. Papini, P. Pearce, M. Picozza, P. Ricciarini, S.B. Simon, M. Sparvoli, R. Spillantini, P. Stozhkov, Y.I. Vacchi, A. Vannuccini, E. Vasilyev, G. Voronov, S.A. Yurkin, Y.T. Zampa, G. Zampa, N. University of Florence Department of Physics Sesto Fiorentino FlorenceI-50019 Italy INFN Sezione di Florence Sesto Fiorentino FlorenceI-50019 Italy University of Naples Federico II Department of Physics NaplesI-80126 Italy INFN Sezione di Naples NaplesI-80126 Italy Lebedev Physical Institute MoscowRU-119991 Russia University of Bari Department of Physics BariI-70126 Italy INFN Sezione di Bari BariI-70126 Italy INFN Sezione di Trieste TriesteI-34149 Italy Ioffe Physical Technical Institute St. PetersburgRU-194021 Russia INFN Sezione di Rome Tor Vergata RomeI-00133 Italy University of Rome Tor Vergata Department of Physics RomeI-00133 Italy MEPhI: National Research Nuclear University MEPhI MoscowRU-115409 Russia KTH Department of Physics Oskar Klein Centre for Cosmoparticle Physics AlbaNova University Centre StockholmSE-10691 Sweden RIKEN EUSO team Global Research Cluster Wako-shi Saitama Japan IFAC Sesto Fiorentino FlorenceI-50019 Italy University of Trieste Department of Physics TriesteI-34147 Italy Universitat Siegen Department of Physics SiegenD-57068 Germany INFN Sezione di Perugia PerugiaI-06123 Italy Science Data Center Via del Politecnico snc RomaI-00133 Italy INFN Laboratori Nazionali di Frascati Via Enrico Fermi 40 FrascatiI-00044 Italy Istituto Nazionale di Astrofisica Fosso del cavaliere 100 Roma00133 Italy University of Udine Department of Mathematics Computer Science and Physics Via delle Scienze 206 Udine Italy

The very intense Jovian magnetic field produces a magnetosphere where high-energy charged particles are trapped, allowing the possibility for acceleration mechanism that could inject those particles in the open space. In the last decades, accelerated electrons from the Jupiter magnetosphere have been detected and studied in the interplanetary *** work investigated whether the proton data obtained by the PAMELA space-borne detector between July 9th, 2006 to August 31th, 2014 shows signatures that arise from Jupiter. In this proceeding the basis of the analysis of cosmic ray protons by PAMELA are described and results will be shown at the conference. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives 4.0 International License (CC BY-NC-ND 4.0).

关键词： Magnetosphere

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Canted stripe phase evolution due to a spin reorientation transition in Fe films grown on Ag(001) vicinal surface

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Physical Review B 2016年第6期93卷 064414-064414页

作者： M. Dąbrowski M. Cinal M. Przybylski G. Chen A. T. N'Diaye A. K. Schmid J. Kirschner Max Planck Institut für Mikrostrukturphysik 06120 Halle Germany Institute of Physical Chemistry of the Polish Academy of Sciences 01-224 Warsaw Poland Faculty of Physics and Applied Computer Science and Academic Centre for Materials and Nanotechnology AGH University of Science and Technology 30-059 Kraków Poland NCEM Lawrence Berkeley National Laboratory Berkeley California 94720 USA Naturwissenschaftliche Fakultät II Martin Luther Universität Halle-Wittenberg 06120 Halle Germany

The evolution of the domain structure with the thickness of bcc Fe films deposited on the Ag(116) vicinal surface is studied by spin-polarized low-energy electron microscopy. We show that a spin reorientation transition proceeds via two mechanisms: continuous rotation of magnetization within the vertical plane perpendicular to the steps and discontinuous reorientation of the in-plane component of magnetization, leading to splitting of the domains. In contrast to previously investigated systems with stripe domains, we reveal that in the case of a vicinal ferromagnetic surface, the domain width increases while changing the orientation of the magnetization from a canted out-of-plane state into an in-plane state. A theoretical model developed in this work successfully describes the domain structure behavior observed in our experiments and can be equally applied to other ferromagnetic films grown on vicinal surfaces.

关键词： Magnetism Stripes Domain walls Low-energy electron microscopy

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Author Correction: A global database for metacommunity ecology, integrating species, traits, environment and space

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Scientific data 2020年第1期7卷 79页

作者： Alienor Jeliazkov Darko Mijatovic Stéphane Chantepie Nigel Andrew Raphaël Arlettaz Luc Barbaro Nadia Barsoum Alena Bartonova Elena Belskaya Núria Bonada Anik Brind'Amour Rodrigo Carvalho Helena Castro Damian Chmura Philippe Choler Karen Chong-Seng Daniel Cleary Anouk Cormont William Cornwell Ramiro de Campos Nicole de Voogd Sylvain Doledec Joshua Drew Frank Dziock Anthony Eallonardo Melanie J Edgar Fábio Farneda Domingo Flores Hernandez Cédric Frenette-Dussault Guillaume Fried Belinda Gallardo Heloise Gibb Thiago Gonçalves-Souza Janet Higuti Jean-Yves Humbert Boris R Krasnov Eric Le Saux Zoe Lindo Adria Lopez-Baucells Elizabeth Lowe Bryndis Marteinsdottir Koen Martens Peter Meffert Andres Mellado-Díaz Myles H M Menz Christoph F J Meyer Julia Ramos Miranda David Mouillot Alessandro Ossola Robin Pakeman Sandrine Pavoine Burak Pekin Joan Pino Arnaud Pocheville Francesco Pomati Peter Poschlod Honor C Prentice Oliver Purschke Valerie Raevel Triin Reitalu Willem Renema Ignacio Ribera Natalie Robinson Bjorn Robroek Ricardo Rocha Sen-Her Shieh Rebecca Spake Monika Staniaszek-Kik Michal Stanko Francisco Leonardo Tejerina-Garro Cajo Ter Braak Mark C Urban Roel van Klink Sébastien Villéger Ruut Wegman Martin J Westgate Jonas Wolff Jan Żarnowiec Maxim Zolotarev Jonathan M Chase German Centre for Integrative Biodiversity Research (iDiv) Deutscher Platz 5E 04103 Leipzig Germany. alienor.jeliazkov@***. Department of Computer Science Martin Luther University Halle-Wittenberg 06099 Halle Salle Germany. alienor.jeliazkov@***. German Centre for Integrative Biodiversity Research (iDiv) Deutscher Platz 5E 04103 Leipzig Germany. Department of Evolutionary Biology and Environmental Studies University of Zürich Winterthurerstrasse 190 8057 Zurich Switzerland. Zoology University of New England Armidale NSW 2351 Australia. Division of Conservation Biology Institute of Ecology and Evolution University of Bern 3012 Bern Switzerland. Dynafor INRA-INPT Univ. Toulouse Auzeville France. Centre d'Ecologie et des Sciences de la Conservation (CESCO) Muséum National d'Histoire Naturelle CNRS Sorbonne Université Paris France. Centre for Ecosystems Society and Biosecurity Forest Research Alice Holt Lodge Farnham Surrey GU10 4LH UK. Biology Centre CAS Czech Academy of Sciences Institute of Entomology Branisovska 31 370 05 Ceske Budejovice Czech Republic. University of South Bohemia in Ceske Budejovice Faculty of Science Branisovska 1760 370 05 Ceske Budejovice Czech Republic. Institute of Plant and Animal Ecology Ural Branch Russian Academy of Sciences Eighth March Street 202 Yekaterinburg 620144 Russia. Grup de Recerca "Freshwater Ecology Hydrology and Management" (FEHM) Departament de Biologia Evolutiva Ecologia i Ciències Ambientals Facultat de Biologia Institut de Recerca de la Biodiversitat (IRBio) Universitat de Barcelona (UB) Diagonal 643 08028 Barcelona Catalonia Spain. Unité Écologie et Modèles pour l'Halieutique IFREMER Rue de l'île d'Yeu B.P. 21105 44311 Nantes Cedex 03 France. Departamento de Biologia Universidade Estadual de Goiás Campus Palmeiras de Goiás Palmeiras de Goiás Goiás Brazil. Universidade Estadual de Goiás (UEG) Programa de Pós-Graduação em Recursos Naturais do Cerrado (RENAC) Campus de Ciências Exatas

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

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Underwater Stereo Calibration Utilizing Virtual Object Points

Underwater Stereo Calibration Utilizing Virtual Object Point...

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OCEANS

作者： Tim Dolereit Uwe Freiherr von Lukas Arjan Kuijper Fraunhofer Institute for Computer Graphics Research IGD Joachim-Jungius-Str. 11 18059 Rostock Germany University of Rostock Institute for Computer Science Albert-Einstein-Str. 22 18059 Rostock Germany Fraunhofer Institute for Computer Graphics Research IGD Fraunhoferstr. 5 64283 Darmstadt Germany

ISBN: (纸本)9781479987375

For 3D-reconstruction of underwater scenes, a camera calibration handling refractive effects is indispensable. We present a novel geometry-based approach for calibration of stereo-camera-systems in a single underwater housing with a flat interface. Our approach consists of three steps. First, we show a hypothesis on how to relate the location of virtual object points non-ambiguously to the true object location in water. Secondly, axis determination and thirdly, distance determination of a refractive interface towards the cameras is performed with the aid of this hypothesis. We propose, that the calibration can be done with just one stereo-view of a known calibration pattern, that axis determination can be done from stereo correspondences alone and that our hypothesis is a valid constraint for stereo 3d-reconstruction. We evaluated our approach on simulated data with ground truth and real data.

关键词： axis determination thirdly distance determination

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Search for pair production of heavy vector-like quarks decaying into high-pT W bosons and top quarks in the lepton-plus-jets final state in pp collisions at √s=13 TeV with the ATLAS detector

arXiv

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arXiv 2018年

作者： Aaboud, M. Aad, G. Abbott, B. Abdinov, O. Abeloos, B. Abhayasinghe, D.K. Abidi, S.H. AbouZeid, O.S. Abraham, N.L. Abramowicz, H. Abreu, H. Abulaiti, Y. Acharya, B.S. Adachi, S. Adamczyk, L. Adelman, J. Adersberger, M. Adye, T. Affolder, A.A. Afik, Y. Agheorghiesei, C. Ahmadov, F. Aielli, G. Akatsuka, S. Åkesson, T.P.A. Akilli, E. Akimov, A.V. Alberghi, G.L. Albert, J. Albicocco, P. Verzini, M.J. Alconada Alderweireldt, S. Aleksa, M. Aleksandrov, I.N. Alexa, C. Alexopoulos, T. Alhroob, M. Ali, B. Aliev, M. Alison, J. Alkire, S.P. Allaire, C. Allbrooke, B.M.M. Allen, B.W. Allport, P.P. Aloisio, A. Alonso, A. Alonso, F. Alpigiani, C. Alshehri, A.A. Alstaty, M.I. Gonzalez, B. Alvarez Piqueras, D. Álvarez Alviggi, M.G. Amadio, B.T. Coutinho, Y. Amaral Ambroz, L. Amelung, C. Amidei, D. Dos Santos, S.P. Amor Amoroso, S. Amrouche, C.S. Anastopoulos, C. Ancu, L.S. Andari, N. Andeen, T. Anders, C.F. Anders, J.K. Anderson, K.J. Andrei, V. Anelli, C.R. Angelidakis, S. Angelozzi, I. Angerami, A. Anisenkov, A.V. Annovi, A. Antel, C. Anthony, M.T. Antonelli, M. Antrim, D.J.A. Anulli, F. Aoki, M. Bella, L. Aperio Arabidze, G. Arai, Y. Araque, J.P. Ferraz, V. Araujo Pereira, R. Araujo Arce, A.T.H. Ardell, R.E. Arduh, F.A. Arguin, J.-F. Argyropoulos, S. Armbruster, A.J. Armitage, L.J. Armstrong, A. Arnaez, O. Arnold, H. Arratia, M. Arslan, O. Artamonov, A. Artoni, G. Artz, S. Asai, S. Asbah, N. Ashkenazi, A. Asimakopoulou, E.M. Asquith, L. Assamagan, K. Astalos, R. Atkin, R.J. Atkinson, M. Atlay, N.B. Augsten, K. Avolio, G. Avramidou, R. Axen, B. Ayoub, M.K. Azuelos, G. Baas, A.E. Baca, M.J. Bachacou, H. Bachas, K. Backes, M. Bagnaia, P. Bahmani, M. Bahrasemani, H. Bailey, A.J. Baines, J.T. Bajic, M. Bakalis, C. Baker, O.K. Bakker, P.J. Gupta, D. Bakshi Baldin, E.M. Balek, P. Balli, F. Balunas, W.K. Banas, E. Bandyopadhyay, A. Banerjee, S. Bannoura, A.A.E. Barak, L. Barbe, W.M. Barberio, E.L. Barberis, D. Barbero, M. Barillari, T. Barisits, M.-S. Barkeloo, J. Barklow, T. Department of Physics University of Adelaide Adelaide Australia Physics Department SUNY Albany AlbanyNY United States Department of Physics University of Alberta EdmontonAB Canada Department of Physics Ankara University Istanbul Aydin University Istanbul Division of Physics TOBB University of Economics and Technology Ankara Turkey LAPP Université Grenoble Alpes Université Savoie Mont Blanc CNRS/IN2P3 Annecy France High Energy Physics Division Argonne National Laboratory ArgonneIL United States Department of Physics University of Arizona TucsonAZ United States Department of Physics University of Texas at Arlington ArlingtonTX United States Physics Department National and Kapodistrian University of Athens Athens Greece Physics Department National Technical University of Athens Zografou Greece Department of Physics The University of Texas at Austin AustinTX United States Bahcesehir University Faculty of Engineering and Natural Sciences Istanbul BilgiUniversity Faculty of Engineering and Natural Sciences Department of Physics Engineering Gaziantep University Gaziantep Turkey Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Barcelona Institute of Science and Technology Barcelona Spain Beijing China Institute of Physics University of Belgrade Belgrade Serbia Department for Physics and Technology University of Bergen Bergen Norway Physics Division Lawrence Berkeley National Laboratory University of California BerkeleyCA United States Department of Physics Humboldt University Berlin Germany Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics University of Bern Bern Switzerland School of Physics and Astronomy University of Birmingham Birmingham United Kingdom Centro de Investigaciones Universidad Antonio Narino Bogota Colombia Dipartimento di Fisica e Astronomia Università di Bologna Bologna INFN Sezione di Bologna Italy Physikalisches Institut University of Bonn Bonn Germany De

A search is presented for the pair production of heavy vector-like B quarks, primarily targeting B quark decays into a W boson and a top quark. The search is based on 36.1 fb−1 of pp collisions at √s = 13 TeV recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. Data are analysed in the lepton-plus-jets final state, characterised by a high-transverse-momentum isolated electron or muon, large missing transverse momentum, and multiple jets, of which at least one is b-tagged. No significant deviation from the Standard Model expectation is observed. The 95% confidence level lower limit on the B mass is 1350 GeV assuming a 100% branching ratio to Wt. In the SU(2) singlet scenario, the lower mass limit is 1170 GeV. This search is also sensitive to a heavy vector-like B quark decaying into other final states (Zb and Hb) and thus mass limits on B production are set as a function of the decay branching ratios. The 100% branching ratio limits are found to be also applicable to heavy vector-like X production, with charge +5/3, that decay into Wt. Copyright © 2018, The Authors. All rights reserved.

关键词： Vectors

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