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Wolf, Travis Benjamin. "Aircraft collision avoidance using Monte Carlo Real-Time Belief Space Search". Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/54226.
Pełny tekst źródłaThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student submitted PDF version of thesis.
Includes bibliographical references (p. 93-95).
This thesis presents the Monte Carlo Real-Time Belief Space Search (MC-RTBSS) algorithm, a novel, online planning algorithm for partially observable Markov decision processes (POMDPs). MC-RTBSS combines a sample-based belief state representation with a branch and bound pruning method to search through the belief space for the optimal policy. The algorithm is applied to the problem of aircraft collision avoidance and its performance is compared to the Trac Alert and Collision Avoidance System (TCAS) in simulated encounter scenarios. The simulations are generated using an encounter model formulated as a dynamic Bayesian network that is based on radar feeds covering U.S. airspace. MC-RTBSS leverages statistical information from the airspace model to predict future intruder behavior and inform its maneuvers. Use of the POMDP formulation permits the inclusion of different sensor suites and aircraft dynamic models. The behavior of MC-RTBSS is demonstrated using encounters generated from an airspace model and comparing the results to TCAS simulation results. In the simulations, both MC-RTBSS and TCAS measure intruder range, bearing, and relative altitude with the same noise parameters. Increasing the penalty of a Near Mid-Air Collision (NMAC) in the MC-RTBSS reward function reduces the number of NMACs, although the algorithm is limited by the number of particles used for belief state projections. Increasing the number of particles and observations used during belief state projection increases performance.
(cont.) Increasing these parameter values also increases computation time, which needs to be mitigated using a more efficient implementation of MC-RTBSS to permit real-time use.
by Travis Benjamin Wolf.
S.M.
Allen, Benjamin. "Search for New Phenomena in Dijet Events Using 13 TeV Proton-Proton Collision Data Collected With the ATLAS Detector". Thesis, University of Oregon, 2018. http://hdl.handle.net/1794/23801.
Pełny tekst źródłaFollega, Francesco Maria. "Search for boosted Higgs bosons decaying to b-quarks at sqrt{s}=13 TeV with the ATLAS detector". Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/259651.
Pełny tekst źródłaFollega, Francesco Maria. "Search for boosted Higgs bosons decaying to b-quarks at sqrt{s}=13 TeV with the ATLAS detector". Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/259651.
Pełny tekst źródłaGilmore, Jason R. "Search for contact interactions in deep inelastic scattering". Connect to this title online, 2002. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu983824358.
Pełny tekst źródłaTitle from first page of PDF file. Document formatted into pages; contains xx, 143 p.; also contains graphics. Includes abstract and vita. Advisor: L. Stanley Durkin, Dept. of Physics. Includes bibliographical references (p. 137-143).
Olschewski, Mark [Verfasser], Thomas [Akademischer Betreuer] Hebbeker i Christopher Henrik V. [Akademischer Betreuer] Wiebusch. "Search for new physics in proton-proton collision events with a lepton and missing transverse energy / Mark Olschewski ; Thomas Hebbeker, Christopher Wiebusch". Aachen : Universitätsbibliothek der RWTH Aachen, 2016. http://nbn-resolving.de/urn:nbn:de:hbz:82-rwth-2016-027043.
Pełny tekst źródłaOlschewski, Mark Verfasser], Thomas [Akademischer Betreuer] [Hebbeker i Christopher Henrik V. [Akademischer Betreuer] Wiebusch. "Search for new physics in proton-proton collision events with a lepton and missing transverse energy / Mark Olschewski ; Thomas Hebbeker, Christopher Wiebusch". Aachen : Universitätsbibliothek der RWTH Aachen, 2016. http://d-nb.info/1130590046/34.
Pełny tekst źródłaTashiro, Takuya. "Search for single production of Vector Like Quarks using the LHC pp collision data at √s=13 TeV collected with the ATLAS detector". Kyoto University, 2019. http://hdl.handle.net/2433/242601.
Pełny tekst źródłaTrimoska, Monika. "Combinatorics in algebraic and logical cryptanalysis". Electronic Thesis or Diss., Amiens, 2021. http://www.theses.fr/2021AMIE0005.
Pełny tekst źródłaIn this thesis, we explore the use of combinatorial techniques, such as graph-based algorithms and constraint satisfaction, in cryptanalysis. Our main focus is on the elliptic curve discrete logarithm problem. First, we tackle this problem in the case of elliptic curves defined over prime-degree binary extension fields, using the index calculus attack. A crucial step of this attack is solving the point decomposition problem, which consists in finding zeros of Semaev’s summation polynomials and can be reduced to the problem of solving a multivariate Boolean polynomial system. To this end, we encode the point decomposition problem as a logical formula and define it as an instance of the SAT problem. Then, we propose an original XOR-reasoning SAT solver, named WDSat, dedicated to this specific problem. As Semaev’s polynomials are symmetric, we extend the WDSat solver by adding a novel symmetry breaking technique that, in contrast to other symmetry breaking techniques, is not applied to the modelization or the choice of a factor base, but to the solving process. Experimental running times show that our SAT-based solving approach is significantly faster than current algebraic methods based on Gröbner basis computation. In addition, our solver outperforms other state-of-the-art SAT solvers, for this specific problem. Finally, we study the elliptic curve discrete logarithm problem in the general case. More specifically, we propose a new data structure for the Parallel Collision Search attack proposed by van Oorschot and Wiener, which has significant consequences on the memory and time complexity of this algorithm
Brintaki, Athina N. "A Computational Kinematics and Evolutionary Approach to Model Molecular Flexibility for Bionanotechnology". Scholar Commons, 2009. https://scholarcommons.usf.edu/etd/1579.
Pełny tekst źródłaBurghgrave, Blake. "Search for Charged Higgs Bosons in the tau + LEPTON Final State With 36.1 fb--1 of pp Collision Data Recorded at √s = 13 Tev With the ATLAS Experiment". Thesis, Northern Illinois University, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10839888.
Pełny tekst źródłaThis dissertation describes a search for charged Higgs bosons decaying to a tau and a neutrino (H+ → τ + ντ) or the charge-conjugate process) in association with a leptonically decaying top quark, using 36.1 fb–1 of pp collision data collected with √s = 13 TeV by the ATLAS detector. The theoretical motivation, including a review of the Standard Model, is given, along with a description of the ATLAS detector and particle reconstruction. A multi-variate analysis approach uses stochastic gradient boosted decision trees to improve the separation between H± signal and background. The semi-leptonic channel described in this thesis is used in combination with a fully hadronic channel to search for charged Higgs bosons in a mass range of 90 GeV ≤ mH± 2000 GeV. Finding no significant excess, limits are set at the 95% confidence level on the charged Higgs production cross section times the branching fraction into τν ranging from 4.2 pb to 2.5 fb. These limits are interpreted in the hMSSM benchmark scenario as an exclusion at 95% confidence on tan β as a function of mH±. In this scenario, for tan β = 60, the H± mass range up to 1100 GeV is excluded, with all values of tan β exclude for mH± ≤160 GeV
Veatch, Jason Robert. "A Search For New Physics Using tt(bar) Resonances in the Lepton Plus Jets Channel at √(s) = 8 TeV in 20 fb⁻¹ of pp Collision Data at the ATLAS Experiment". Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/578734.
Pełny tekst źródłaMamužić, Judita. "Search for Gaugino Mediation Non-Universal Higgs Masses Model with Tau-Sneutrino NLSP withthe ATLAS Detector in Final States with Jets and Missing Transverse Momentum and 20.3 fb-1of sqrt(s) = 8 TeV Proton-Proton Collision Data". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17618.
Pełny tekst źródłaSupersymmetry (SUSY) is one of the best motivated extensions of the Standard Model. The subject of this thesis is the analysis of two SUSY scenarios using 20.3 fb-1 of ATLAS data at 8 TeV center of mass energy. The main topic is a study of the Non-Universal Higgs Masses model with Gaugino mediation and Tau-Sneutrino NLSP (NUHMG). A study showed that NUHMG can be found using Squark and Gluino production, using final states with zero leptons of transverse momenta higher than 10 GeV, multiple jets and missing transverse energy. A new method for fast optimisation using multivariate techniques was developed for the analysis with 2-6 jets and missing transverse momentum. No significant excess of data has been seen, and 95 percent CL exclusion limits have been set on the model, where Squark and Gluino masses are excluded up to 1250 and 1400 GeV respectively. Second SUSY model studied, is the Non-universal Higgs Masses model with Neutralino LSP (NUHM). It is well motivated in the framework of Radiatively Driven Natural Supersymmetry (RNS). A data analysis using a statistical combination of 2, 3 and 4 leptons has been performed. No significant excess of data has been observed, and 95 percent CL exclusion limits have been set. They reach up to 300 GeV in m1/2, and extend up to the highest tested value of μ = 500 GeV. In addition to physics analyses, a program developed for online monitoring of the ATLAS trigger, called Trigger Presenter (TriP), is described in this thesis.
Fraga, Tatiana Balbi. "Proposição e análise de modelos híbridos para o problema de escalonamento de produção em oficina de máquinas". Universidade do Estado do Rio de Janeiro, 2010. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=3803.
Pełny tekst źródłaNas últimas décadas, o problema de escalonamento da produção em oficina de máquinas, na literatura referido como JSSP (do inglês Job Shop Scheduling Problem), tem recebido grande destaque por parte de pesquisadores do mundo inteiro. Uma das razões que justificam tamanho interesse está em sua alta complexidade. O JSSP é um problema de análise combinatória classificado como NP-Difícil e, apesar de existir uma grande variedade de métodos e heurísticas que são capazes de resolvê-lo, ainda não existe hoje nenhum método ou heurística capaz de encontrar soluções ótimas para todos os problemas testes apresentados na literatura. A outra razão basea-se no fato de que esse problema encontra-se presente no diaa- dia das indústrias de transformação de vários segmento e, uma vez que a otimização do escalonamento pode gerar uma redução significativa no tempo de produção e, consequentemente, um melhor aproveitamento dos recursos de produção, ele pode gerar um forte impacto no lucro dessas indústrias, principalmente nos casos em que o setor de produção é responsável por grande parte dos seus custos totais. Entre as heurísticas que podem ser aplicadas à solução deste problema, o Busca Tabu e o Multidão de Partículas apresentam uma boa performance para a maioria dos problemas testes encontrados na literatura. Geralmente, a heurística Busca Tabu apresenta uma boa e rápida convergência para pontos ótimos ou subótimos, contudo esta convergência é frequentemente interrompida por processos cíclicos e a performance do método depende fortemente da solução inicial e do ajuste de seus parâmetros. A heurística Multidão de Partículas tende a convergir para pontos ótimos, ao custo de um grande esforço computacional, sendo que sua performance também apresenta uma grande sensibilidade ao ajuste de seus parâmetros. Como as diferentes heurísticas aplicadas ao problema apresentam pontos positivos e negativos, atualmente alguns pesquisadores começam a concentrar seus esforços na hibridização das heurísticas existentes no intuito de gerar novas heurísticas híbridas que reúnam as qualidades de suas heurísticas de base, buscando desta forma diminuir ou mesmo eliminar seus aspectos negativos. Neste trabalho, em um primeiro momento, são apresentados três modelos de hibridização baseados no esquema geral das Heurísticas de Busca Local, os quais são testados com as heurísticas Busca Tabu e Multidão de Partículas. Posteriormente é apresentada uma adaptação do método Colisão de Partículas, originalmente desenvolvido para problemas contínuos, onde o método Busca Tabu é utilizado como operador de exploração local e operadores de mutação são utilizados para perturbação da solução. Como resultado, este trabalho mostra que, no caso dos modelos híbridos, a natureza complementar e diferente dos métodos Busca Tabu e Multidão de Partículas, na forma como são aqui apresentados, da origem à algoritmos robustos capazes de gerar solução ótimas ou muito boas e muito menos sensíveis ao ajuste dos parâmetros de cada um dos métodos de origem. No caso do método Colisão de Partículas, o novo algorítimo é capaz de atenuar a sensibilidade ao ajuste dos parâmetros e de evitar os processos cíclicos do método Busca Tabu, produzindo assim melhores resultados.
In recent decades, the Job Shop Scheduling Ploblem (JSSP) has received great attention of researchers worldwide. One of the reasons for such interest is its high complexity. The JSSP is a combinatorial optimization problem classified as NP-Hard and, although there is a variety of methods and heuristics that are able to solve it, even today no method or heuristic is able to find optimal solutions for all benchmarcks presented in the literature. The other reason builds on noted fact that this problem is present in day-to-day of industries of various segments and, since the optimal scheduling may cause a significant reduction in production time and thus a better utilization of manufacturing resources, it can generate a strong impact on the gain of these industries, especially in cases where the production sector is responsible for most of their total costs. Among the heuristics that can be applied to the solution of this problem, the Tabu Search and the Particle Swarm Optimization show good performance for most benchmarcks found in the literature. Usually, the Taboo Search heuristic presents a good and fast convergence to the optimal or sub-optimal points, but this convergence is frequently interrupted by cyclical processes, offset, the Particle Swarm Optimization heuristic tends towards a convergence by means of a lot of computational time, and the performance of both heuristics strongly depends on the adjusting of its parameters. This thesis presents four different hybridization models to solve the classical Job Shop Scheduling Problem, three of which based on the general schema of Local Search Heuristics and the fourth based on the method Particle Collision. These models are analyzed with these two heuristics, Taboo Search and Particle Swarm Optimization, and the elements of this heuristics, showing what aspects must be considered in order to achieve a best solution of the one obtained by the original heuristics in a considerable computational time. As results this thesis demonstrates that the four models are able to improve the robustness of the original heuristics and the results found by Taboo Search.
Jensen, Paul Thomas. "A search for the H0 dibaryon". Access restricted to users with UT Austin EID Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3037505.
Pełny tekst źródłaRaspereza, Alexei. "Search for neutral Higgs bosons in e+e--collisions". [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=972652744.
Pełny tekst źródłaChristiansen, Tim. "Search for Second-Generation Leptoquarks in Proton-Antiproton Collisions". Diss., lmu, 2004. http://nbn-resolving.de/urn:nbn:de:bvb:19-19725.
Pełny tekst źródłaRaspereza, Alexei. "Search for neutral higgs bosons in e+e- collisions". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2004. http://dx.doi.org/10.18452/15117.
Pełny tekst źródłaThis thesis is devoted to the search for neutral Higgs bosons predicted by various theoretical models. The Higgs boson arises as a result of spontaneous breaking of SU(2) symmetry leading to the generation of masses of fermions and weak bosons. The search is done in all experimentally related channels using the data collected at center-of-mass energies up to 209 GeV in the years 1998-2000 with the L3 detector at the Large Electron Positron collider, LEP. Here the study of the final states characterised by four jets is described in detail. For other final states the analyses are briefly reviewed and the results are reported. The data are compared with the expectation from the Standard Model background processes and with various signal hypotheses. A model independent search for neutral Higgs bosons is also performed. No evidence for the production of Higgs bosons is found. New mass limits are determined superseding previous mass limits established by L3 and other experiments. First I describe the analysis searching for the Standard Model Higgs Boson. Its production at LEP is expected mainly via the Higgs-strahlung process. In the mass range accessible at LEP the Standard Model Higgs Boson is predicted to decay dominantly into a pair of b and anti-b quarks, hence the dedicated analyses are optimised for the H->bb decay mode. The four-jet signal topology is investigated and then combined with the other search channels leading to a lower mass limit of mH > 112.0 GeV at 95% C.L.. The results of the search are also interpreted in terms of limits on the HZZ coupling. In the Minimal Supersymmetric Standard Model (MSSM) the Higgs sector is extended to five physical states. The Higgs-strahlung process is complemented by the mechanism of the Higgs boson pair production e+e- -> hA. Therefore, for the interpretation of the results in the framework of the MSSM the Standard Model analyses are combined with the hA -> bb tau+tau-, hA -> bbbb and hZ->AAqq channels. Three benchmark MSSM scenarios denoted "mh-max", "no mixing" and "large-mu" are considered. Using L3 data the lower bounds on the Higgs boson masses mh > 84.5 GeV mA > 86.3 GeV are derived at 95% C.L. for tan(beta) > 0.7. For the "mh-max", "no mixing" and "large-mu" scenarios, ranges 0.55 < tan(beta) < 2.2, 0.4 < tan(beta) < 4.9 and 0.7 < tan(beta) < 6.2, respectively, are ruled out. A model independent search for the Higgs-strahlung process with subsequent decay of h into hadrons is carried out in the four-jet channel. The results of the analysis are then combined with the other channels. A limit on the hZZ coupling as a function of the Higgs boson mass is derived. The results of L3 combined search establish a 95% C.L. lower mass limit, mh > 97 GeV, for a hadronically decaying Higgs boson assuming the cross section of the Higgs-strahlung process to be equal to the value predicted by the Standard Model and the branching fraction of the Higgs boson into hadrons equal to 100%. Analyses are developed to search exclusively for the hA -> bbbb, hA -> qqqq, hA -> bb tau+tau- and hA -> qq tau+tau- final states. Results of these analyses are translated into a 95% C.L. upper limit on the hAZ coupling as a function of Higgs boson masses. Searches for neutral Higgs bosons carried out by the L3 collaboration are combined with searches performed in other LEP experiments. The results of this combination are reported. The perspectives of Higgs boson searches at TEVATRON and LHC are briefly reviewed. The prospects of Higgs physics at a future linear e+e- collider are discussed. The potential of the TESLA detector foreseen at the TESLA linear collider for the determination of Higgs boson properties is studied. The Higgs boson masses 120, 150 and 180 GeV are considered. It is shown that a precision of 40 - 70 MeV in the measurement of the Higgs boson mass can be achieved. A model independent method to measure the e+e- -> HZ cross section is proposed. The method is based on the study of the inclusive HZ -> X e+e- and X mu+mu- channels. The relative error in the determination of the cross section varies between 2.6% and 3.8% for Higgs boson mass ranging from 120 GeV to 180 GeV. For the four-fermion and six-fermion final states arising from the Higgs-strahlung process the accuracy of the measurement of a topological cross section, defined as the product of the Higgs-strahlung cross section and the branching fraction of the specific final state, is investigated. The relative uncertainty of this measurement varies from 1.1% and 13%, depending on final state and Higgs boson mass. These and other measurements will allow to determine the profile of the Higgs boson and give insight into the structure of the Higgs sector in nature.
Goodall, Alan Michael. "A search for leptoquarks produced in electron-proton collisions at HERA". Thesis, University of Liverpool, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385030.
Pełny tekst źródłaSteinberg, Peter A. (Peter Alan) 1969. "Search for disoriented chiral condensates in 158 AGeV ²⁰⁸Pb+Pb collisions". Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/50340.
Pełny tekst źródłaSiedlein, Rupert V. "A search for excited electrons in electron-proton collisions at HERA /". The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487854314871133.
Pełny tekst źródłaSushkov, Serge. "Search for scalar quarks in e + e - collisions at LEP II". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2003. http://dx.doi.org/10.18452/14951.
Pełny tekst źródłaThis thesis is devoted to searches for the scalar top and the scalar bottom quarks within the framework of the Minimal Supersymmetric Standard Model (MSSM) with the assumption of R-parity conservation. Searches for the following decay modes of the stop quark have been performed: stop -> c neutralino_1, stop -> b l sneutrino, (where l is either electron, muon or tau-lepton with equal probabilities) and stop -> b tau sneutrino (where only the tau-lepton is considered). In addition, a three body decay stop -> b W neutralino_1 has been searched for in the allowed mass region of M_stop > M_b + M_W + M_neutralino1 >= 86 GeV. For the sbottom quark the decay sbottom -> b neutralino_1 was considered. Each of these decay modes was considered independently assuming a branching ratio of 100 %. For this search, the experimental data of electron-positron collisions at center-of-mass energies (c.m.s.) in the range of 202-208 GeV have been used. These data were collected in the year 2000 by the L3 detector at the Large Electron Positron Collider (LEP) at CERN. The results of the year 2000 data analysis were also combined with results of the squark searches performed by the L3 Collaboration in previous years at center-of-mass energies from 161 up to 202 GeV. The analyzed squark decay channels determine the topology of the events of our interest: 2 jets (or b-jets) + missing energy (+ 2 leptons for stop three body decays). The stop -> b W neutralino_1 decay topology depends significantly on the further decay of the W boson and can have up to 6 jets in the final state. The assumed conservation of R-parity implies stability of the lightest supersymmetric particle (the LSP), which is the lightest neutralino. The LSP interacts only weakly and thus escapes undetected. This leads to a large missing energy as a feature of the signal events. The visible energy is roughly proportional to the difference between the masses of the squark and the LSP, and since the Standard Model background composition depends on the visible energy fraction, the whole analysis depends also on the value of this mass difference. Depending on the magnitude of visible energy, the Standard Model background can be grouped into three categories: - the two-fermion processes are e e -> e e, e e -> mu mu, e e -> tau tau and e e -> q q; - the four-fermion category is composed of e e -> W W, e e -> W e nu, e e -> Z Z and e e -> Z e e processes; - the two-photon background processes are e e -> e e e e, e e -> e e mu mu, e e -> e e tau tau and e e -> e e q q. The last process, e e -> e e q q, constitutes the largest fraction of all SM background processes (due to very high and highly fluctuating missing energy and the highest cross section). At the very first step of the analysis, only the events of interesting topology (with 2 jets and high missing energy) were preselected. Then, taking into account the small value of the theoretically predicted production cross section of the scalar quarks, the selection of stop and sbottom events was optimized by minimization of the 95 % confidence level expected upper limit on the squark cross section using calculated Monte Carlo events. In all selections optimized for each particular squark decay channel, the number of selected data events statistically agrees with the number of events expected from the Standard Model processes: - for stop -> c neutralino_1 decay, 29 data evens were observed, while 26.5 +- 2.7 were expected from the SM processes; - for the three body decay stop -> b l sneutrino, 4 data events were selected and the expectation from the Standard Model is 4.0 +- 1.0 events; - for the decay stop -> b tau sneutrino, the data and SM event numbers are 5 and 3.9 +- 1.0, respectively; - in the selection for stop -> b W neutralino_1, 184 data events were observed and 181.6 +- 3.0 were expected from the Standard Model; - for the bottom squark decay sbottom -> b neutralino_1 the observed 6 events correspond to the SM expectation of 7.7 +- 1.3. Thus, the MSSM scalar quarks were not observed in the experimental data and the search results are negative. The model independent 95 % C.L. upper limits on the squark production cross section have been derived from the numbers of the observed data events and numbers of events expected from the Standard Model. For calculation of the upper cross section limits, the results of the squark searches performed in the L3 data of c.m.s. energy 202 - 208 GeV were combined with results of searches performed by the L3 Collaboration previously in the data of c.m.s. energy from 161 up to 202 GeV. A new method has been developed for calculating such combined limits. This method takes into account the statistical independence of each measurement and the dependency of the squark production cross section on the center-of-mass energy. In this calculation, the systematic uncertainties in the Standard Model background estimation and in the signal selection efficiency have been also accounted for. For the considered squark decays, the typical obtained 95 % C.L. upper limits on the squark production cross section are: ~ 0.05-0.2 pb (for stop) and ~ 0.05-0.1 pb (for sbottom). In the searches for the stop three body decay stop -> b W neutralino_1, the cross sections above 0.7-1.0 pb have been excluded at 95 % C.L. Within the framework of MSSM with conserved R-parity, the experimental model independent cross section limits have been used for exclusion of the MSSM model parameters, in particular, exclusion of the stop and the sbottom masses. For each considered decay channel, the squark masses have been excluded in two possible scenarios: for the maximal and for the (approximately) minimal theoretical cross section. The first case corresponds to the maximal mixing between the left and right squark eigenstates, cos(theta) = 1; the second case is defined by the cos(theta) value, where squarks decouple from the Z boson. Depending on the mass difference between squark and the LSP, the squark masses have been excluded at 95 % C.L. up to the following values: - for stop -> c neutralino_1: M_stop < 90-93 GeV for minimal cross section, M_stop < 95-96 GeV for maximal cross section; - for stop -> b l sneutrino: M_stop < 87-89 GeV for minimal cross section, M_stop < 90-91 GeV for maximal cross section; - for stop -> b tau sneutrino: M_stop < 83-88 GeV for minimal cross section, M_stop < 88-91 GeV for maximal cross section; - for sbottom -> b neutralino_1: M_stop < 76-83 GeV for minimal cross section, M_stop < 94-97 GeV for maximal cross section. For both cases, the experimentally observed 95 \% C.L. mass exclusions are compared to the expected ones, which have been obtained from the Monte-Carlo assuming no SUSY particles. The observed exclusions of the squark masses are at the same level as the expected ones. The obtained 95 % C.L. upper limits on the stop production cross section in the decay stop -> b W neutralino_1 are bigger than the corresponding theoretical predictions, so, the exclusion of masses at 95 % C.L. was not possible with the available data sample. Assuming the topology of decays of the scalar quarks of the first two generations to be similar to the two body decay of the stop, the results of the searches for the decay stop -> c neutralino_1 have been also used for calculation of the mass exclusion limits for the squarks of the first two families. Two possibilities were considered here: the mass degeneracy between four (scalar u, d, c, s) and five (scalar b in addition) squarks. The 95 % C.L. exclusion limits on the mass degenerate scalar quarks for the cases of the "right-only" or "left-and-right" eigenstates are the following: - for the mass degeneration between 4 squarks: M_squark < 95-96 GeV ("right-only"), M_squark < 99-100 GeV ("left-and-right"); - for the mass degeneration between 5 squarks: M_squark < 96-97 GeV ("right-only"), M_squark < 99-101 GeV ("left-and-right"). Using the MSSM assumption about gaugino unification at the GUT scale, the limits on the four mass degenerate squarks have been reinterpreted on the squark-gluino mass plane. Moreover, the absolute limit on the MSSM parameter M_2, obtained for tan(beta) = 4 from other L3 SUSY searches (for chargino, neutralino and scalar leptons), has been translated into a gluino mass limit. The obtained 95 % C.L. exclusions in the squark-gluino mass plane are - M_gluino > 267-314 GeV, - M_squark > 99-100 GeV.
Sabetfakhri, Ali. "A search for electron and neutrino compositeness in ep collisions at HERA". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ53842.pdf.
Pełny tekst źródłaAlhomaidhi, Sultan Mohammad A. "Search for Maximum Nuclear Compression in a Model of Nucleus-Nucleus Collisions". Kent State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=kent1448216380.
Pełny tekst źródłaHart, Andrew Evan. "Search for disappearing tracks in proton-proton collisions at √s = 13 TeV". The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1517587469347379.
Pełny tekst źródłaMamužić, Judita [Verfasser], Klaus [Gutachter] Mönig, Thomas [Gutachter] Lohse i Sascha [Gutachter] Caron. "Search for Gaugino Mediation Non-Universal Higgs Masses Model with Tau-Sneutrino NLSP with the ATLAS Detector in Final States with Jets and Missing Transverse Momentum and 20.3 fb-1 of sqrt(s) = 8 TeV Proton-Proton Collision Data / Judita Mamužić ; Gutachter: Klaus Mönig, Thomas Lohse, Sascha Caron". Berlin : Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://d-nb.info/1117081273/34.
Pełny tekst źródłaEndner, Oliver Chris [Verfasser]. "Search for new physics using jets in proton-proton collisions / Oliver Chris Endner". Mainz : Universitätsbibliothek Mainz, 2016. http://d-nb.info/1101969784/34.
Pełny tekst źródłaDavis, Robert Allan. "A search for a natural Higgs boson in electron positron collisions at LEP". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0034/NQ46827.pdf.
Pełny tekst źródłaOwen, Mark. "Search for Higgs Bosons decaying into Tau Pairs in pp Collisions at DO". Thesis, University of Manchester, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489017.
Pełny tekst źródłaRimmer, Andrew John. "A search for excited quark production in electron-proton collisions at 320 GeV". Thesis, University of Liverpool, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433025.
Pełny tekst źródłaLindén, Tomas. "Strangelet search and particle production studies in Pb-Pb collisions at 158A GeV /". Helsinki : University of Helsinki, 2000. http://ethesis.helsinki.fi/julkaisut/mat/fysii/vk/linden/.
Pełny tekst źródłaVolken, Werner. "Strangelet search in S - W collisions at 200 · A GeV/c per nucleon /". [S.l.] : [s.n.], 1994. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.
Pełny tekst źródłaCass, A. J. "A search for jets in direct photon events from hadronic collisions at 280GeV/c". Thesis, University of Liverpool, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234824.
Pełny tekst źródłaBrinson, Jessica. "A search for disappearing tracks in proton-proton collisions at sqrt(s) = 8 TeV". The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1428940893.
Pełny tekst źródłaCalfayan, Philippe. "Search for Pair Production of Second Generation Scalar Leptoquarks in ppbar Collisions at the Tevatron". Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-89036.
Pełny tekst źródłaKertzscher, Schwencke Gustavo. "Search for charged Higgs bosons decaying to top and bottom quarks in proton-antiproton collisions". Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32538.
Pełny tekst źródłaL'existence d'un boson chargè de Higgs est suggérée hypothétiquement dans différentes extensions de la nouvelle physique allant au-delà du Modèle Standard de la physique des particules. Cette thèse présente une recherche de bosons chargés de Higgs se désintégrant en quarks top et bottom dans les données de l'expérience DØ au Fermi National Accelerator Laboratory à Batavia, IL. La fouille investigue l'existence de bosons chargés de Higgs ayant une masse 180 ≤ MH+ ≤ 300 GeV/c2, et dans le contexte de différentes extensions du Modèle Standard à doublets de deux Higgs. Près de 1 fb−1 de données provenant de collisions proton-antiproton à une énergie de centre de masse √s=1.96 TeV ont été analysées. Aucune évidence de l'existence de bosons chargés n'a été trouvée. Des limites supérieures sur la section efficace de production ont été dérivées pour les Types I, II et III des modèles à doublets de deux Higgs. Des régions d'exclusion dans le plan (MH+, tan β) pour le Type I ont été calculées.
Rodenburg, Marissa L. "Search for stopped long-lived particles produced in pp collisions at 8 TeV at CMS". The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1408831922.
Pełny tekst źródłaSchnellbach, Yan-Jie. "Search for new heavy neutral gauge bosons in √s = 8 TeV pp collisions with ATLAS". Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/2009919/.
Pełny tekst źródłaKessler, Jens. "Search for Drell Yan in squareroot s = 41.6 GeV p-N Collisions at HERA-b". [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:16-opus-77914.
Pełny tekst źródłaTang, Jaw-luen. "Search for a short-lived H dibaryon in 11.6 A GEV/C AU+AU collisions at the BNL-AGS E896 /". Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.
Pełny tekst źródłaDavis, Robert Allan. "Search for a Standard Model Higgs Boson in 161 GeV electron positron collisions using neural networks". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq21162.pdf.
Pełny tekst źródłaVest, Anja. "Search for bosonic stop decays in R-parity violating supersymmetry in e+ p collisions at HERA". Hamburg : DESY, 2004. http://deposit.d-nb.de/cgi-bin/dokserv?idn=972779051.
Pełny tekst źródłaVeelken, Christian. "Search for events with isolated leptons and large missing transverse momentum in ep collisions at HERA". Thesis, University of Liverpool, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428225.
Pełny tekst źródłaKay, Ellis. "Search for new heavy gauge bosons in √s = 13 TeV pp collisions with the ATLAS detector". Thesis, University of Liverpool, 2018. http://livrepository.liverpool.ac.uk/3026560/.
Pełny tekst źródłaKlinger, Joel Alexander. "Search for heavy Majorana neutrinos in ρρ collisions at √s=8 TeV with the ATLAS detector". Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/search-for-heavy-majorana-neutrinos-in-pp-collisions-at-sqrts8-tev-with-the-atlas-detector(a591530e-1099-4235-b687-f13a2e07a756).html.
Pełny tekst źródłaWeng, Joanna. "Parameterisation of electromagnetic showers and search for large extra dimensions in pp collisions at s = 14 TeV /". Karlsruhe : Univ.-Verl. Karlsruhe, 2006. http://www.uvka.de/univerlag/volltexte/2007/193/.
Pełny tekst źródłaEllert, Mattias. "Search for Charged Higgs Bosons in e+e− Collisions". Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2001. http://publications.uu.se/theses/91-554-4981-6/.
Pełny tekst źródłaAad, G., Richard Brenner, Claus P. Buszello, Tord Ekelöf, Mattias Ellert, Arnaud Ferrari i L. Zwalinski. "Search for decays of stopped, long-lived particles from 7 TeV pp collisions with the ATLAS detector". Uppsala universitet, Högenergifysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-182697.
Pełny tekst źródłaATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1140/epjc/s10052-012-1965-6
Richardson, Michael Thomas. "Search for the Standard Model Higgs boson in e'+e'- collisions using the Delphi detector at LEP". Thesis, University of Liverpool, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386859.
Pełny tekst źródłaKlein, Katja. "A search for sleptons with intermediate lifetimes in e + e - collisions at sqrt s = 189 - 209 GeV". [S.l. : s.n.], 2002. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB10047875.
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