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Generic Feature Learning in computer Vision

Procedia computer science 2015年 58卷 202-209页

作者： D. Kanishka Nithin P. Bagavathi Sivakumar M.TECH. Scholar Department of Computer Science and Engineering Amrita VishwaVidyapeetham(University) Coimbatore India 641112 Associate Professor Department of Computer Science and Engineering Amrita VishwaVidyapeetham(University) Coimbatore India 641112

Current machine learning algorithms are highly dependent on manually designing features and the Performance of such algo- rithms predominantly depend on how good our representations are. manually we might never be able to produce best and diverse set of features that closely describe all the variations that occur in our data. Understanding this, vision community is moving towards learning the optimum features itself instead of learning from the features. Traditional hand engineered features lack in generalizing well to other domains/Problems, are time consuming, expensive, requires expert knowledge on the problem domain and doesn’t facilitate learning from previous learnings/Representations(Transfer learning). All these issues are resolved in learning deep representations. Since 2006 a wide range of representation learning algorithms has been proposed but by the recent success and breakthroughs of few deep learning models, the representation learning algorithms have gained the spotlight. This paper aims to give short overview of deep learning approaches available for vision tasks. We also discuss their applicability (With respect to their properties) in vision field.

关键词： Feature learning Generic features Vision Recognition Supervised learning Unsupervised learning Deep learning Convolution Neural networks RBm Autoencoders

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Author Correction: A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery

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Nature 2023年第7985期623卷 E5页

作者： G. Aad m. Barbero T. P. Calvet Y. Coadou C. Diaconu F. Djama A. Duperrin L. Feligioni E. Fortin G. D. Hallewell N. Kumari E. monnier S. muanza E. Nagy E. Petit A. Rozanov J. Stark T. Strebler m. Talby S. Tisserant A. Vallier B. Abbott m. Alhroob P. Gutierrez J. E. Lambert J. m. muse A. R. Roepe-Gier H. Severini P. Skubic m. Strauss J. Stupak D. J. Wilbern D. C. Abbott B. Brau Y. Chou R. Coelho Lopes De Sa C. Dallapiccola m. Javurkova S. Krishnamurthy R. J. Langenberg W. A. Leight V. I. martinez Outschoorn E. J. W. moyse J. A. Sandesara P. Tornambe m. Vessella C. Wagner S. Willocq K. Abeling B. Achkar J. F. Beirer m. Bindi L. O. Gerlach R. Goncalves Gama J. Grosse-Knetter Y. Hong G. Kawamura A. Kirchhoff S. Korn S. Lai m. marjanovic A. H. melo S. mobius m. Niemeyer I. Pokharel A. Quadt C. Scheulen E. Shabalina S. Sindhu A. Skaf Y. Tian S. H. Abidi K. Assamagan G. Barone m. Begel D. P. Benjamin m. Benoit R. Bi D. Boye E. Brost V. Cavaliere H. Chen G. D’amen S. J. Das J. Elmsheuser B. Garcia V. Garonne Y. Go G. Iakovidis C. W. Kalderon A. Klimentov A. K. Kvam E. Lançon F. Lanni D. Lynn H. ma T. maeno C. mc Ginn C. mwewa J. L. Nagle P. Nilsson m. A. Nomura D. Oliveira Damazio J. Ouellette D. V. Perepelitsa m.-A. Pleier V. Polychronakos S. Protopopescu S. Rajagopalan G. Redlinger T. T. Rinn J. Roloff S. Snyder P. Steinberg S. A. Stucci A. Tricoli A. Undrus C. Weber T. Wenaus S. Ye A. Aboulhorma S. Batlamous R. Cherkaoui El moursli H. El Jarrari F. Fassi H. Hamdaoui B. Ngair Z. Soumaimi Y. Tayalati m. Zaazoua A. Bassalat H. Abramowicz L. Barak U. Barron G. Bella Y. Benhammou B. Chen H. Cohen E. Etzion G. Koren m. S. Lutz R. Nayak L. Pascual Dominguez D. Reikher A. Soffer N. m. Tamir D. Vannicola H. Abreu G. Avner E. Kajomovitz D. melini Y. Rozen S. Tarem O. Tsur Y. Abulaiti K. Cranmer A. Haas A. I. mincer P. Rieck m. L. Vesterbacka A. C. Abusleme Hoffman m. A. Diaz F. m. Garay Walls B. S. Acharya m. Cobal m. Faraj m. P. Giordani G. Giugliarelli G. Guerrieri J. magro G. Panizzo m. Pinamonti L. Serkin L. Adam A. Aggarwal CPPM Aix-Marseille Université CNRS/IN2P3 Marseille France L2IT Université de Toulouse CNRS/IN2P3 UPS Toulouse France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman OK United States of America Department of Physics University of Massachusetts Amherst MA United States of America II. Physikalisches Institut Georg-August-Universität Göttingen Göttingen Germany CERN Geneva Switzerland Physics Department Brookhaven National Laboratory Upton NY United States of America Department of Physics and Astronomy University of Pittsburgh Pittsburgh PA United States of America University of Colorado Boulder Department of Physics Colorado United States of America Department of Physics Nanjing University Nanjing China Faculté des sciences Université Mohammed V Rabat Morocco Institute of Physics Academia Sinica Taipei Taiwan Physics Department An-Najah National University Nablus Palestine IJCLab Université Paris-Saclay CNRS/IN2P3 91405 Orsay France Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel Department of Physics and Astronomy University of Victoria Victoria BC Canada Department of Physics Technion Israel Institute of Technology Haifa Israel Department of Physics New York University New York NY United States of America Departamento de Física Pontificia Universidad Católica de Chile Santiago Chile Millennium Institute for Subatomic physics at high energy frontier (SAPHIR) Santiago Chile INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy Department of Physics King’s College London London United Kingdom Dipartimento Politecnico di Ingegneria e Architettura Università di Udine Udine Italy Institut für Physik Universität Mainz Mainz Germany LAPP Univ. Savoie Mont Blanc CNRS/IN2P3 Annecy France INFN Sezione di Napoli Napoli Italy Dipartimento di Fisica Università di Napoli Napoli Italy AGH University of Krakow Faculty of Physics and

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The Apache Point Observatory Galactic Evolution Experiment (APOGEE) spectrographs

arXiv

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arXiv 2019年

作者： Wilson, J.C. Hearty, F.R. Skrutskie, m.F. majewski, S.R. Holtzman, J.A. Eisenstein, D. Gunn, J. Blank, B. Henderson, C. Smee, S. Nelson, m. Nidever, D. Arns, J. Barkhouser, R. Barr, J. Beland, S. Bershady, m.A. Blanton, m.R. Brunner, S. Burton, A. Carey, L. Carr, m. Colque, J.P. Crane, J. Damke, G.J. Davidson, J.W. Dean, J. Di mille, F. Don, K.W. Ebelke, G. Evans, m. Fitzgerald, G. Gillespie, B. Hall, m. Harding, A. Harding, P. Hammond, R. Hancock, D. Harrison, C. Hope, S. Horne, T. Karakla, J. Lam, C. Leger, F. macDonald, N. maseman, P. matsunari, J. melton, S. mitcheltree, T. O'Brien, T. O'Connell, R.W. Patten, A. Richardson, W. Rieke, G. Rieke, m. Roman-Lopes, A. Schiavon, R.P. Sobeck, J.S. Stolberg, T. Stoll, R. Tembe, m. Trujillo, J.D. Uomoto, A. Vernieri, m. Walker, E. Weinberg, D.H. Young, E. Anthony-Brumfield, B. Bizyaev, D. Breslauer, B. de Lee, N. Downey, J. Halverson, S. Huehnerhoff, J. Klaene, m. Leon, E. Long, D. mahadevan, S. malanushenko, E. Nguyen, D.C. Owen, R. Sánchez-Gallego, J.R. Sayres, C. Shane, N. Shectman, S.A. Shetrone, m. Skinner, D. Stauffer, F. Zhao, B. Astronomy Department University of Virginia CharlottesvilleVA22901 United States Department of Astronomy and Astrophysics Pennsylvania State University University ParkPA16802 United States Dept of Astronomy New Mexico State Univ P. O. Box 30001 MSC 4500 Las CrucesNM88003 United States Harvard-Smithsonian Center for Astrophysics 60 Garden Street MS 20 CambridgeMA02138 United States Department of Astrophysical Sciences Princeton University PrincetonNJ08544 United States PulseRay 4583 State Route 414 Beaver DamsNY14812 United States Department of Physics and Astronomy Johns Hopkins University BaltimoreMD21218 United States National Optical Astronomy Observatory 950 North Cherry Avenue TucsonAZ85719 United States Kaiser Optical Systems Inc. 371 Parkland Plaza Ann ArborMI48103 United States Laboratory for Atmospheric and Space Physics University of Colorado 3665 Discovery Dr. BoulderCO80303 United States Department of Astronomy University of Wisconsin-Madison 475 N. Charter St. MadisonWI53726 United States South African Astronomical Observatory P.O. Box 9 Observatory Cape Town7935 South Africa Center for Cosmology and Particle Physics Department of Physics New York University 726 Broadway Rm. 1005 New YorkNY10003 United States Department of Astronomy University of Washington Box 351580 SeattleWA98195 United States Universidad de Antofagasta Avenida Angamos 601 Antofagasta Chile Observatories of the Carnegie Institution for Science 813 Santa Barbara Street PasadenaCA91101 United States AURA Observatory in Chile Cisternas 1500 La Serena Chile Centro Multidisciplinario de Ciencia y Tecnología Universidad de La Serena Cisternas 1200 La Serena Chile Las Campanas Observatory Colina El Pino Casilla La Serena601 Chile Steward Observatory University of Arizona 933 N. Cherry Ave TucsonAZ85721 United States New England Optical Systems Inc. 237 Cedar Hill St. MarlboroughMA01752 United States Apache Point Observatory P.

We describe the design and performance of the near-infrared (1.51-1.70µm), fiber-fed, multi-object (300 fibers), high resolution (R = λ/∆λ ∼ 22,500) spectrograph built for the Apache Point Observatory Galactic Evolution Experiment (APOGEE). APOGEE is a survey of ∼ 105 red giant stars that systematically sampled all milky Way populations (bulge, disk, and halo) to study the Galaxy's chemical and kinematical history. It was part of the Sloan Digital Sky Survey III (SDSS-III) from 2011 - 2014 using the 2.5 m Sloan Foundation Telescope at Apache Point Observatory, New mexico. The APOGEE-2 survey is now using the spectrograph as part of SDSS-IV, as well as a second spectrograph, a close copy of the first, operating at the 2.5 m du Pont Telescope at Las Campanas Observatory in Chile. Although several fiber-fed, multi-object, high resolution spectrographs have been built for visual wavelength spectroscopy, the APOGEE spectrograph is one of the first such instruments built for observations in the near-infrared. The instrument's successful development was enabled by several key innovations, including a "gang connector" to allow simultaneous connections of 300 fibers;hermetically sealed feedthroughs to allow fibers to pass through the cryostat wall continuously;the first cryogenically deployed mosaic volume phase holographic grating;and a large refractive camera that includes mono-crystalline silicon and fused silica elements with diameters as large as ∼ 400 mm. This paper contains a comprehensive description of all aspects of the instrument including the fiber system, optics and opto-mechanics, detector arrays, mechanics and cryogenics, instrument control, calibration system, optical performance and stability, lessons learned, and design changes for the second instrument. Copyright © 2019, The Authors. All rights reserved.

关键词： Spectrographs

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Search for bottom-type, vectorlike quark pair production in a fully hadronic final state in proton-proton collisions at s=13 TeV

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Physical Review D 2020年第11期102卷 112004-112004页

作者： A. m. Sirunyan A. Tumasyan W. Adam T. Bergauer m. Dragicevic J. Erö A. Escalante Del Valle R. Frühwirth m. Jeitler N. Krammer L. Lechner D. Liko T. madlener I. mikulec F. m. Pitters N. Rad J. Schieck R. Schöfbeck m. Spanring S. Templ W. Waltenberger C.-E. Wulz m. Zarucki V. Chekhovsky A. Litomin V. makarenko J. Suarez Gonzalez m. R. Darwish E. A. De Wolf D. Di Croce X. Janssen T. Kello A. Lelek m. Pieters H. Rejeb Sfar H. Van Haevermaet P. Van mechelen S. Van Putte N. Van Remortel F. Blekman E. S. Bols S. S. Chhibra J. D’Hondt J. De Clercq D. Lontkovskyi S. Lowette I. marchesini S. moortgat A. morton Q. Python S. Tavernier W. Van Doninck P. Van mulders D. Beghin B. Bilin B. Clerbaux G. De Lentdecker B. Dorney L. Favart A. Grebenyuk A. K. Kalsi I. makarenko L. moureaux L. Pétré A. Popov N. Postiau E. Starling L. Thomas C. Vander Velde P. Vanlaer D. Vannerom L. Wezenbeek T. Cornelis D. Dobur m. Gruchala I. Khvastunov m. Niedziela C. Roskas K. Skovpen m. Tytgat W. Verbeke B. Vermassen m. Vit G. Bruno F. Bury C. Caputo P. David C. Delaere m. Delcourt I. S. Donertas A. Giammanco V. Lemaitre K. mondal J. Prisciandaro A. Taliercio m. Teklishyn P. Vischia S. Wertz S. Wuyckens G. A. Alves C. Hensel A. moraes W. L. Aldá Júnior E. Belchior Batista Das Chagas H. Brandao malbouisson W. Carvalho J. Chinellato E. Coelho E. m. Da Costa G. G. Da Silveira D. De Jesus Damiao S. Fonseca De Souza J. martins D. matos Figueiredo m. medina Jaime C. mora Herrera L. mundim H. Nogima P. Rebello Teles L. J. Sanchez Rosas A. Santoro S. m. Silva Do Amaral A. Sznajder m. Thiel F. Torres Da Silva De Araujo A. Vilela Pereira C. A. Bernardes L. Calligaris T. R. Fernandez Perez Tomei E. m. Gregores D. S. Lemos P. G. mercadante S. F. Novaes Sandra S. Padula A. Aleksandrov G. Antchev I. Atanasov R. Hadjiiska P. Iaydjiev m. misheva m. Rodozov m. Shopova G. Sultanov m. Bonchev A. Dimitrov T. Ivanov L. Litov B. Pavlov P. Petkov A. Petrov W. Fang Q. Guo H. Wang L. Yuan m. Ahmad Z. Hu Y. Wang E. Chapon G. m. Chen H. S. Chen m. Chen T. Javaid A. Kapoor D. Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Wien Austria Institute for Nuclear Problems Minsk Belarus Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Ghent University Ghent Belgium Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual Paulista São Paulo Brazil Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Beihang University Beijing China Rutgers The State University of New Jersey Piscataway New Jersey USA Department of Physics Tsinghua University Beijing China University of Virginia Charlottesville Virginia USA Institute of High Energy Physics Beijing China Massachusetts Institute of Technology Cambridge Massachusetts USA State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China The University of Kansas Lawrence Kansas USA Sun Yat-Sen University Guangzhou China Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE)—Fudan University Shanghai China Zhejiang University Hangzhou China Universidad de Los Andes Bogota Colombia Universidad de Antioquia Medellin Colombia University of Split Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture Split Croatia University of Split Faculty of Science Split Croatia Institute Rudjer Boskovic Zagreb Croatia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Escuela Politecnica Nacional Quito Ecuador Universidad San Francisco de Quito Quito Ecuador Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt Center for High Ener

A search is described for the production of a pair of bottom-type vectorlike quarks (VLQs), each decaying into a b or b¯ quark and either a Higgs or a Z boson, with a mass greater than 1000 GeV. The analysis is based on data from proton-proton collisions at a 13 TeV center-of-mass energy recorded at the CERN LHC, corresponding to a total integrated luminosity of 137 fb−1. As the predominant decay modes of the Higgs and Z bosons are to a pair of quarks, the analysis focuses on final states consisting of jets resulting from the six quarks produced in the events. Since the two jets produced in the decay of a highly Lorentz-boosted Higgs or Z boson can merge to form a single jet, nine independent analyses are performed, categorized by the number of observed jets and the reconstructed event mode. No signal in excess of the expected background is observed. Lower limits are set on the VLQ mass at 95% confidence level equal to 1570 GeV in the case where the VLQ decays exclusively to a b quark and a Higgs boson, 1390 GeV for when it decays exclusively to a b quark and a Z boson, and 1450 GeV for when it decays equally in these two modes. These limits represent significant improvements over the previously published VLQ limits.

关键词： Bottom quark Hypothetical particles Hadron colliders

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Search for a light charged Higgs boson in the H±→cs channel in proton-proton collisions at s=13 TeV

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Physical Review D 2020年第7期102卷 072001-072001页

作者： A. m. Sirunyan A. Tumasyan W. Adam F. Ambrogi T. Bergauer m. Dragicevic J. Erö A. Escalante Del Valle R. Frühwirth m. Jeitler N. Krammer L. Lechner D. Liko T. madlener I. mikulec F. m. Pitters N. Rad J. Schieck R. Schöfbeck m. Spanring S. Templ W. Waltenberger C.-E. Wulz m. Zarucki V. Chekhovsky A. Litomin V. makarenko J. Suarez Gonzalez m. R. Darwish E. A. De Wolf D. Di Croce X. Janssen T. Kello A. Lelek m. Pieters H. Rejeb Sfar H. Van Haevermaet P. Van mechelen S. Van Putte N. Van Remortel F. Blekman E. S. Bols S. S. Chhibra J. D’Hondt J. De Clercq D. Lontkovskyi S. Lowette I. marchesini S. moortgat A. morton Q. Python S. Tavernier W. Van Doninck P. Van mulders D. Beghin B. Bilin B. Clerbaux G. De Lentdecker B. Dorney L. Favart A. Grebenyuk A. K. Kalsi I. makarenko L. moureaux L. Pétré A. Popov N. Postiau E. Starling L. Thomas C. Vander Velde P. Vanlaer D. Vannerom L. Wezenbeek T. Cornelis D. Dobur m. Gruchala I. Khvastunov m. Niedziela C. Roskas K. Skovpen m. Tytgat W. Verbeke B. Vermassen m. Vit G. Bruno F. Bury C. Caputo P. David C. Delaere m. Delcourt I. S. Donertas A. Giammanco V. Lemaitre K. mondal J. Prisciandaro A. Taliercio m. Teklishyn P. Vischia S. Wuyckens J. Zobec G. A. Alves G. Correia Silva C. Hensel A. moraes W. L. Aldá Júnior E. Belchior Batista Das Chagas H. BRANDAO mALBOUISSON W. Carvalho J. Chinellato E. Coelho E. m. Da Costa G. G. Da Silveira D. De Jesus Damiao S. Fonseca De Souza J. martins D. matos Figueiredo m. medina Jaime m. melo De Almeida C. mora Herrera L. mundim H. Nogima P. Rebello Teles L. J. Sanchez Rosas A. Santoro S. m. Silva Do Amaral A. Sznajder m. Thiel E. J. Tonelli manganote F. Torres Da Silva De Araujo A. Vilela Pereira C. A. Bernardes L. Calligaris T. R. Fernandez Perez Tomei E. m. Gregores D. S. Lemos P. G. mercadante S. F. Novaes Sandra S. Padula A. Aleksandrov G. Antchev I. Atanasov R. Hadjiiska P. Iaydjiev m. misheva m. Rodozov m. Shopova G. Sultanov m. Bonchev A. Dimitrov T. Ivanov L. Litov B. Pavlov P. Petkov A. Petrov W. Fang Q. Guo H. Wang L. Yuan m. Ahmad Z. Hu Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Wien Austria Institute for Nuclear Problems Minsk Belarus Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Ghent University Ghent Belgium Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual Paulista São Paulo Brazil Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Beihang University Beijing China Rutgers The State University of New Jersey Piscataway New Jersey USA Department of Physics Tsinghua University Beijing China University of Virginia Charlottesville Virginia USA Institute of High Energy Physics Beijing China Massachusetts Institute of Technology Cambridge Massachusetts USA State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China The University of Kansas Lawrence Kansas USA Sun Yat-Sen University Guangzhou China Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE)—Fudan University Shanghai China Zhejiang University Hangzhou China Universidad de Los Andes Bogota Colombia Universidad de Antioquia Medellin Colombia University of Split Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture Split Croatia University of Split Faculty of Science Split Croatia Institute Rudjer Boskovic Zagreb Croatia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Escuela Politecnica Nacional Quito Ecuador Universidad San Francisco de Quito Quito Ecuador Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt Center for High Ener

A search is conducted for a low-mass charged Higgs boson produced in a top quark decay and subsequently decaying into a charm and a strange quark. The data sample was recorded in proton-proton collisions at s=13 TeV by the CmS experiment at the LHC and corresponds to an integrated luminosity of 35.9 fb−1. The search is performed in the process of top quark pair production, where one top quark decays to a bottom quark and a charged Higgs boson and the other to a bottom quark and a W boson. With the W boson decaying to a charged lepton (electron or muon) and a neutrino, the final state comprises an isolated lepton, missing transverse momentum, and at least four jets, of which two are tagged as b jets. To enhance the search sensitivity, one of the jets originating from the charged Higgs boson is required to satisfy a charm tagging selection. No significant excess beyond standard model predictions is found in the dijet invariant mass distribution. An upper limit in the range 1.68%–0.25% is set on the branching fraction of the top quark decay to the charged Higgs boson and bottom quark for a charged Higgs boson mass between 80 and 160 GeV.

关键词： Higgs bosons Hypothetical gauge bosons Hadron colliders

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Life Time Enhancement of Sensor Network by Using Concept of SEP & LEACH (LEACH-P)

Life Time Enhancement of Sensor Network by Using Concept of ...

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International Conference on Advances in Computing and Communication engineering (ICACCE)

作者： Nidhi Gupta Harsh Gupta Ramlal Yadav Computer Science & Engineering Poornima College of Engineering Jaipur Analog VLSI Design Engineer M-Tech Manipal University Assistant Professor Computer Science & Engineering KITE Jaipur

Network life time is the main concern area in wireless sensor network (WSN). Design energy efficient routing algorithm to prolong the network lifetime becomes one of the most important tasks in wireless sensor networks. There are many clustering approaches that were used earlier to enhance the network lifetime. Here, in this paper we have developed a LEACH-P (Leach-modified) protocol to boost the overall lifetime of the wireless sensor network, that combines the idea of LEACH (Low Energy adaptive protocol) and SEP (Stable Election Protocol) together. LEACH-P basically based on the concept of heterogeneous clustered wireless sensor network, in which energy level of every node is not alike. We have equipped some percentage of total nodes with more energy. We have compared the result of LEACH, mTE and LEACH-P in our simulation and the simulation results show that the performance of LEACH-P is better than both LEACH and mTE.

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Review on "Really Simple Syndication (RSS) technology Tools"

Review on "Really Simple Syndication (RSS) Technology Tools"

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IEEE International Conference on Computational Intelligence & Communication technology (CICT)

作者： Geetanjali Singh Shashank Sahu M. Tech Computer Science and Engineering Ajay Kumar Garg Engineering College Ghaziabad India Department of Computer Science and Engineering Ajay Kumar Garg Engineering College Ghaziabad India

A user always requires up-to date content from online sources. The content is not always satisfactory for the user as it does not provide the specific information required by user. It is tedious task for common user to get the desirable information from vast Internet. To overcome this type of problem, the user needed RSS technology for ease of access. RSS gives the updated online information to the user. This paper represents review study of Really Simple Syndication (RSS) technology. Here we discuss about many Tools and useful areas where RSS is used and also define many issues due to improper RSS feed. For this research work article from last one decade (2003-2013) has been selected.

关键词： Feeds Servers Clustering algorithms Information filters Browsers Real-time systems

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Comparison of Fragmentation Functions for Jets Dominated by Light Quarks and Gluons from pp and Pb+Pb Collisions in ATLAS

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Physical Review Letters 2019年第4期123卷 042001-042001页

作者： m. Aaboud G. Aad B. Abbott O. Abdinov B. Abeloos D. K. Abhayasinghe S. H. Abidi O. S. AbouZeid N. L. Abraham H. Abramowicz H. Abreu Y. Abulaiti B. S. Acharya S. Adachi L. Adamczyk J. Adelman m. Adersberger A. Adiguzel T. Adye A. A. Affolder Y. Afik C. Agheorghiesei J. A. Aguilar-Saavedra F. Ahmadov G. Aielli S. Akatsuka T. P. A. Åkesson E. Akilli A. V. Akimov G. L. Alberghi J. Albert P. Albicocco m. J. Alconada Verzini S. Alderweireldt m. Aleksa I. N. Aleksandrov C. Alexa T. Alexopoulos m. Alhroob B. Ali G. Alimonti J. Alison S. P. Alkire C. Allaire B. m. m. Allbrooke B. W. Allen P. P. Allport A. Aloisio A. Alonso F. Alonso C. Alpigiani A. A. Alshehri m. I. Alstaty B. Alvarez Gonzalez D. Álvarez Piqueras m. G. Alviggi B. T. Amadio Y. Amaral Coutinho L. Ambroz C. Amelung D. Amidei S. P. Amor Dos Santos S. Amoroso C. S. Amrouche C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders J. K. Anders K. J. Anderson A. Andreazza V. Andrei C. R. Anelli S. Angelidakis I. Angelozzi A. Angerami A. V. Anisenkov A. Annovi C. Antel m. T. Anthony m. Antonelli D. J. A. Antrim F. Anulli m. Aoki J. A. Aparisi Pozo L. Aperio Bella G. Arabidze J. P. Araque V. Araujo Ferraz R. Araujo Pereira A. T. H. Arce R. E. Ardell F. A. Arduh J-F. Arguin S. Argyropoulos A. J. Armbruster L. J. Armitage A. Armstrong O. Arnaez H. Arnold m. Arratia O. Arslan A. Artamonov G. Artoni S. Artz S. Asai N. Asbah A. Ashkenazi E. m. Asimakopoulou L. Asquith K. Assamagan R. Astalos R. J. Atkin m. Atkinson N. B. Atlay K. Augsten G. Avolio R. Avramidou m. K. Ayoub G. Azuelos A. E. Baas m. J. Baca H. Bachacou K. Bachas m. Backes P. Bagnaia m. Bahmani H. Bahrasemani A. J. Bailey J. T. Baines m. Bajic C. Bakalis O. K. Baker P. J. Bakker D. Bakshi Gupta E. m. Baldin P. Balek F. Balli W. K. Balunas J. Balz E. Banas A. Bandyopadhyay S. Banerjee A. A. E. Bannoura L. Barak W. m. Barbe E. L. Barberio D. Barberis m. Barbero T. Barillari m-S. Barisits J. Barkeloo T. Barklow N. Barlow R. Barnea S. L. Barnes B. m. Barnett R. m. Barnett Z. Barnovska-Blenessy A. Baroncelli Faculté des Sciences Université Mohamed Premier and LPTPM Oujda Morocco CPPM Aix-Marseille Université CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan LAL Université Paris-Sud CNRS/IN2P3 Université Paris-Saclay Orsay France Department of Physics Royal Holloway University of London Egham United Kingdom Department of Physics University of Toronto Toronto Ontario Canada Niels Bohr Institute University of Copenhagen Copenhagen Denmark Department of Physics and Astronomy University of Sussex Brighton United Kingdom 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 High Energy Physics Division Argonne National Laboratory Argonne Illinois USA INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy International Center for Elementary Particle Physics and Department of Physics University of Tokyo Tokyo Japan AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Department of Physics Northern Illinois University DeKalb Illinois USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Bogazici 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 California USA Department of Physics Alexandru Ioan Cuza University of Iasi Iasi Romania Universidad de Granada Granada (Spain) Spain Laboratório de Instrumentação e Física Experimental de Partículas—LIP Portugal Joint Institute for Nuclear Research Dubna Russia INFN Sezione di Roma Tor Vergata Italy Dipartimento di Fisica Università di Roma Tor Vergata Roma Italy Faculty of Science Kyo

Charged-particle fragmentation functions for jets azimuthally balanced by a high-transverse-momentum, prompt, isolated photon are measured in 25 pb−1 of pp and 0.49 nb−1 of Pb+Pb collision data at 5.02 TeV per nucleon pair recorded with the ATLAS detector at the Large Hadron Collider. The measurements are compared to predictions of monte Carlo generators and to measurements of inclusively selected jets. In pp collisions, a different jet fragmentation function in photon-tagged events from that in inclusive jet events arises from the difference in fragmentation between light quarks and gluons. The ratios of the fragmentation functions in Pb+Pb events to that in pp events are used to explore the parton color-charge dependence of jet quenching in the hot medium. In relatively peripheral collisions, fragmentation functions exhibit a similar modification pattern for photon-tagged and inclusive jets. However, photon-tagged jets are observed to have larger modifications than inclusive jets in central Pb+Pb events.

关键词： Quantum chromodynamics Quark & gluon jets Quark-gluon plasma Relativistic heavy-ion collisions Strong interaction

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Search for the Production of a Long-Lived Neutral Particle Decaying within the ATLAS Hadronic Calorimeter in Association with a Z Boson from pp Collisions at s=13 TeV

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Physical Review Letters 2019年第15期122卷 151801-151801页

作者： m. Aaboud G. Aad B. Abbott O. Abdinov B. Abeloos D. K. Abhayasinghe S. H. Abidi O. S. AbouZeid N. L. Abraham H. Abramowicz H. Abreu Y. Abulaiti B. S. Acharya S. Adachi L. Adam L. Adamczyk J. Adelman m. Adersberger A. Adiguzel T. Adye A. A. Affolder Y. Afik C. Agheorghiesei J. A. Aguilar-Saavedra F. Ahmadov G. Aielli S. Akatsuka T. P. A. Åkesson E. Akilli A. V. Akimov G. L. Alberghi J. Albert P. Albicocco m. J. Alconada Verzini S. Alderweireldt m. Aleksa I. N. Aleksandrov C. Alexa D. Alexandre T. Alexopoulos m. Alhroob B. Ali G. Alimonti J. Alison S. P. Alkire C. Allaire B. m. m. Allbrooke B. W. Allen P. P. Allport A. Aloisio A. Alonso F. Alonso C. Alpigiani A. A. Alshehri m. I. Alstaty B. Alvarez Gonzalez D. Álvarez Piqueras m. G. Alviggi B. T. Amadio Y. Amaral Coutinho A. Ambler L. Ambroz C. Amelung D. Amidei S. P. Amor Dos Santos S. Amoroso C. S. Amrouche F. An C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders J. K. Anders K. J. Anderson A. Andreazza V. Andrei C. R. Anelli S. Angelidakis I. Angelozzi A. Angerami A. V. Anisenkov A. Annovi C. Antel m. T. Anthony m. Antonelli D. J. A. Antrim F. Anulli m. Aoki J. A. Aparisi Pozo L. Aperio Bella G. Arabidze J. P. Araque V. Araujo Ferraz R. Araujo Pereira A. T. H. Arce R. E. Ardell F. A. Arduh J-F. Arguin S. Argyropoulos J.-H. Arling A. J. Armbruster L. J. Armitage A. Armstrong O. Arnaez H. Arnold m. Arratia O. Arslan A. Artamonov G. Artoni S. Artz S. Asai N. Asbah E. m. Asimakopoulou L. Asquith K. Assamagan R. Astalos R. J. Atkin m. Atkinson N. B. Atlay K. Augsten G. Avolio R. Avramidou m. K. Ayoub A. m. Azoulay G. Azuelos A. E. Baas m. J. Baca H. Bachacou K. Bachas m. Backes P. Bagnaia m. Bahmani H. Bahrasemani A. J. Bailey V. R. Bailey J. T. Baines m. Bajic C. Bakalis O. K. Baker P. J. Bakker D. Bakshi Gupta S. Balaji E. m. Baldin P. Balek F. Balli W. K. Balunas J. Balz E. Banas A. Bandyopadhyay S. Banerjee A. A. E. Bannoura L. Barak W. m. Barbe E. L. Barberio D. Barberis m. Barbero T. Barillari m-S. Barisits J. Barkeloo T. Barklow R. Barnea S. L. Barnes Faculté des Sciences Université Mohamed Premier and LPTPM Oujda Morocco CPPM Aix-Marseille Université CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan LAL Université Paris-Sud CNRS/IN2P3 Université Paris-Saclay Orsay France Department of Physics Royal Holloway University of London Egham United Kingdom Department of Physics University of Toronto Toronto Ontario Canada Niels Bohr Institute University of Copenhagen Copenhagen Denmark Department of Physics and Astronomy University of Sussex Brighton United Kingdom 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 High Energy Physics Division Argonne National Laboratory Argonne Illinois USA INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy International Center for Elementary Particle Physics and Department of Physics University of Tokyo Tokyo Japan Institut für Physik Universität Mainz Mainz Germany AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Department of Physics Northern Illinois University DeKalb Illinois USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Bogazici 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 California USA Department of Physics Alexandru Ioan Cuza University of Iasi Iasi Romania Departamento de Física Teorica y del Cosmos Universidad de Granada Granada (Spain) Spain Laboratório de Instrumentação e Física Experimental de Partículas—LIP Portugal Joint Institute for Nuclear Research Dubna Russia INFN Sezione di Roma Tor Vergat

This Letter presents a search for the production of a long-lived neutral particle (Zd) decaying within the ATLAS hadronic calorimeter, in association with a standard model (Sm) Z boson produced via an intermediate scalar boson, where Z→ℓ+ℓ− (ℓ=e, μ). The data used were collected by the ATLAS detector during 2015 and 2016 pp collisions with a center-of-mass energy of s=13 TeV at the Large Hadron Collider and correspond to an integrated luminosity of 36.1±0.8 fb−1. No significant excess of events is observed above the expected background. Limits on the production cross section of the scalar boson times its decay branching fraction into the long-lived neutral particle are derived as a function of the mass of the intermediate scalar boson, the mass of the long-lived neutral particle, and its cτ from a few centimeters to one hundred meters. In the case that the intermediate scalar boson is the Sm Higgs boson, its decay branching fraction to a long-lived neutral particle with a cτ approximately between 0.1 and 7 m is excluded with a 95% confidence level up to 10% for mZd between 5 and 15 GeV.

关键词： Particle decays Particle production Hypothetical gauge bosons Hypothetical scalars W & Z bosons Hadron colliders

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Combination of Searches for Invisible Higgs Boson Decays with the ATLAS Experiment

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Physical Review Letters 2019年第23期122卷 231801-231801页

作者： m. Aaboud G. Aad B. Abbott D. C. Abbott O. Abdinov A. Abed Abud D. K. Abhayasinghe S. H. Abidi O. S. AbouZeid N. L. Abraham H. Abramowicz H. Abreu Y. Abulaiti B. S. Acharya S. Adachi L. Adam C. Adam Bourdarios L. Adamczyk L. Adamek J. Adelman m. Adersberger A. Adiguzel S. Adorni T. Adye A. A. Affolder Y. Afik C. Agapopoulou m. N. Agaras A. Aggarwal C. Agheorghiesei J. A. Aguilar-Saavedra F. Ahmadov G. Aielli S. Akatsuka T. P. A. Åkesson E. Akilli A. V. Akimov K. Al Khoury G. L. Alberghi J. Albert m. J. Alconada Verzini S. Alderweireldt m. Aleksa I. N. Aleksandrov C. Alexa D. Alexandre T. Alexopoulos A. Alfonsi m. Alhroob B. Ali G. Alimonti J. Alison S. P. Alkire C. Allaire B. m. m. Allbrooke B. W. Allen P. P. Allport A. Aloisio A. Alonso F. Alonso C. Alpigiani A. A. Alshehri m. I. Alstaty m. Alvarez Estevez B. Alvarez Gonzalez D. Álvarez Piqueras m. G. Alviggi Y. Amaral Coutinho A. Ambler L. Ambroz C. Amelung D. Amidei S. P. Amor Dos Santos S. Amoroso C. S. Amrouche F. An C. Anastopoulos N. Andari T. Andeen C. F. Anders J. K. Anders A. Andreazza V. Andrei C. R. Anelli S. Angelidakis I. Angelozzi A. Angerami A. V. Anisenkov A. Annovi C. Antel m. T. Anthony m. Antonelli D. J. A. Antrim F. Anulli m. Aoki J. A. Aparisi Pozo L. Aperio Bella G. Arabidze J. P. Araque V. Araujo Ferraz R. Araujo Pereira A. T. H. Arce F. A. Arduh J-F. Arguin S. Argyropoulos J.-H. Arling A. J. Armbruster L. J. Armitage A. Armstrong O. Arnaez H. Arnold A. Artamonov G. Artoni S. Artz S. Asai N. Asbah E. m. Asimakopoulou L. Asquith K. Assamagan R. Astalos R. J. Atkin m. Atkinson N. B. Atlay H. Atmani K. Augsten G. Avolio R. Avramidou m. K. Ayoub A. m. Azoulay G. Azuelos A. E. Baas m. J. Baca H. Bachacou K. Bachas m. Backes F. Backman P. Bagnaia m. Bahmani H. Bahrasemani A. J. Bailey V. R. Bailey J. T. Baines m. Bajic C. Bakalis O. K. Baker P. J. Bakker D. Bakshi Gupta S. Balaji E. m. Baldin P. Balek F. Balli W. K. Balunas J. Balz E. Banas A. Bandyopadhyay Sw. Banerjee A. A. E. Bannoura L. Barak W. m. Barbe E. L. Barberio D. Barberis m. Barbero Faculté des Sciences Université Mohamed Premier and LPTPM Oujda Morocco CPPM Aix-Marseille Université CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Department of Physics University of Massachusetts Amherst Massachusetts USA Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan INFN Sezione di Pavia Pavia Italy Dipartimento di Fisica Università di Pavia Pavia Italy Department of Physics Royal Holloway University of London Egham United Kingdom Department of Physics University of Toronto Toronto Ontario Canada Niels Bohr Institute University of Copenhagen Copenhagen Denmark Department of Physics and Astronomy University of Sussex Brighton United Kingdom 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 High Energy Physics Division Argonne National Laboratory Argonne Illinois USA INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy International Center for Elementary Particle Physics and Department of Physics University of Tokyo Tokyo Japan Institut für Physik Universität Mainz Mainz Germany LAL Université Paris-Sud CNRS/IN2P3 Université Paris-Saclay Orsay France AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Department of Physics Northern Illinois University DeKalb Illinois USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Bogazici University Istanbul Turkey Département de Physique Nucléaire et Corpusculaire Université de Genève Genève Switzerland Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Santa Cruz Institute for Particle Physics University of California Santa Cruz Santa Cruz California USA LPC Université Clermont Auvergne CNRS/IN2P3 Clermont-Ferrand

Dark matter particles, if sufficiently light, may be produced in decays of the Higgs boson. This Letter presents a statistical combination of searches for H→invisible decays where H is produced according to the standard model via vector boson fusion, Z(ℓℓ)H, and W/Z(had)H, all performed with the ATLAS detector using 36.1 fb−1 of pp collisions at a center-of-mass energy of s=13 TeV at the LHC. In combination with the results at s=7 and 8 TeV, an exclusion limit on the H→invisible branching ratio of 0.26(0.17−0.05+0.07) at 95% confidence level is observed (expected).

关键词： Extensions of Higgs sector Invisible decays Particle dark matter

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