Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 63 for “"Colliders"”.
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Event generation at lepton colliders
The Monte-Carlo simulation package APACIC++/AMEGIC++ is able to describe current and future electron-positron annihilation experiments, namely the LEP collider at CERN and the TESLA collider at DESY. APACIC++ is responsible for the complete generation of one event and AMEGIC++ deals with the exact …
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Jet production at hadron colliders
… for the quark jet function. Turning to hadron colliders, we show how the N-jettiness event shape divides phase space into N +2 regions, each containing one central or beam jet. Thus, N-jettiness works as a jet algorithm. Using a geometric measure gives central jets with circular boundaries. We …
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Constraining New Physics with Colliders and Neutrinos
In this work, we examine how neutrino and collider experiments can each and together put constraints on new physics more stringently than ever. Constraints arise in three ways. First, possible new theoretical frameworks are reviewed and analyzed for the compatibility with collider experiments. We …
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Exclusive cone jet algorithms for high energy particle colliders
… use at the LHC and other high energy particle colliders.
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Phenomenological aspects of new physics at high energy hadron colliders
… aspects of new physics at hadron colliders, such as the Large Hadron Collider (LHC). After a general introduction in chap- ter 1, in chapter 2 we outline the main features of the Standard Model (SM) of particle physics and the theoretical motivations for going beyond it. We …
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Flavourful beyond the Standard Model physics at current and future colliders
The Standard Model of particle physics successfully explains nearly all non-gravitational phenomena observed in nature. Yet, both theoretical considerations and experimental data suggest that the model is incomplete and must be extended. This thesis investigates "flavourful" beyond the Standard …
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Looking for Unusual Signatures of New Physics at Current and Future Colliders
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-12-01
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Automating methods to improve precision in Monte-Carlo event generation for particle colliders
This thesis concerns with numerical methods for a theoretical description of high energy particle scattering experiments. It focuses on fixed order perturbative calculations, i.e. on matrix elements and scattering cross sections at leading and next-to-leading order. For the leading order a number …
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Multi-GPU Accelerated High-Fidelity Simulations of Beam-Beam Effects in Particle Colliders
… simulation of beam-beam effects in particle colliders are crucial in understanding and the design of future machines such as electron-ion colliders (JLEIC), linac-ring machines (eRHIC) or LHeC. These simulations model the non-linear collision dynamics of two counter rotating beams in particle …
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A 233Km Circumference Tunnel for E+E-, Pp{Bar}, and Mu+Mu- Colliders
In 2001 a cost analysis survey was conducted to build a 233km circumference tunnel in northern Illinois in which to build a Very Large Hadron Collider. Ten years later I have reexamined the proposal, taking into consideration the technological advancements in all the aspects of construction cost …
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Signals of supersymmetry in top quark decays at positron-electron and hadron-hadron colliders
… and future $e\sp+ e\sp-$ and hadron-hadron colliders. We have focussed on the influence of supersymmetry on the search for the top quark (as yet, undiscovered) by studying the two specific processes: $e\sp+ e\sp-$ $\to$ $\Theta$ $\to$ $g\tilde{g}\tilde{k}$, where $\tilde{k}$ is either a …
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Phenomenology of the minimal <i>B - L</i> Model: the Higgs sector at the Large Hadron Collider and future linear colliders
… of the Standard Model at present and future colliders. Firstly, the motivations that call for the minimal <i>B - L</i> extension are summarised. In addition, the model is analysed in its salient parts. Moreover, a detailed review of the phenomenological allowed Higgs sector parameter space is …
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Phenomenology of new physics beyond the Standard Model: signals of Supersymmetry with displaced vertices and an extended Higgs sector at colliders
… physics. What this new physics may look like at colliders motivates the original work in this thesis, which comprises three studies: the prospects of future electron-positron colliders in testing a model with an extended Higgs sector with a scalar triplet, doublet and singlet; the discovery …
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The vacuum chamber in the interaction region of particle colliders : a historical study and developments implemented in the LHCb experiment at CERN
El colisionador de protenes actualmente en construcción en el CERN llamado LHC (Large Hadron Collider) se convertirá en el más potente acelerador jamas construido con una energía por protón de 7 TeV. Se prevé que esta en operación en 2007. Constará de 4 grandes experimentos uno de los cuales, LHCb, …
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Studies in positron and gamma ray production for future facilities
The next generation of particle colliders after the LHC (Large Hadron Collider) at CERN are likely to be high-precision electron positron colliders such as the ILC (International Linear Collider) or CLIC (Compact Linear Collider). This next generation of colliders will give new scope to explore …
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New Aspects of Gauge-Boson Couplings and the Higgs Sector
… Model will be probed at future linear e+ e- colliders for its validity at high energies and for its possible extensions. As an example we investigate Multi-Higgs-Doublet Models with respect to the stability of their potential and to spontaneous electroweak symmetry breaking. Further, two …
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Limits of QCD
… back-to-back limit, a dijet observable at hadron colliders, and the three-point energy correlator (EEEC) in the coplanar limit, a trijet observable at lepton colliders. For both observables, we derive allorder factorization theorems and resum large logarithms to next-to-next-to-next-to-leading …
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Electroweak symmetry breaking in the era of the Higgs boson discovery
… framework to analyze hadronic final states at colliders. In the first part, we begin by considering supersymmetric extensions of the SM and by studying the connection between electroweak symmetry breaking and supersymmetry breaking. Contrary to the common lore, we show that a visible dynamics …
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