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 199 for “"New Physics"”.
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Using Heavy Flavors To Study New Physics
<p>In this doctoral dissertation I discuss the possible standard model contributions to select leptonic heavy meson decay modes. Included are calculations of soft photon contributions to a di-lepton decay of B-mesons as well as two-particle hadronic unitary contributions to the rare di-leptonic …
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Probing New Physics Through Third Generation Leptons
… dissertation is a study of beyond standard model physics or new physics. The third generation charged lepton -the τ -is an excellent probe of new physics (NP) because of it being the heaviest lepton. As the heaviest lepton, it has the largest coupling ( among the leptons) to the Higgs boson in the …
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Constraining New Physics with Colliders and Neutrinos
… 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 study alternate theories such as the superconnection …
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Computational Atomic Structure and Search for New Physics
… dipole moments(EDM) are examined for sources of physics beyond the SM. Precision calculationsof these properties in the trivalent thallium atom, will help set new constraints onsearches beyond the SM.To this end, the first half of the dissertation is devoted to improving atomic …
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Novel Networks in Collider Searches for New Physics
Beyond-Standard Model (BSM) physics searches at the LHC are limited by the amount of information available to distinguish a new physics process from its backgrounds. Analyses apply a range of classification algorithms to obtain sensitivity to rare signals, but are challenged to obtain enough …
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"Moving Bodies: James Joyce and the ""New Physics"""
… whose vision of art draws from out-dated Newtonian absolute reference frames. Contrary to this, Joyce represents himself as a ""soft,"" Einsteinian modernist, who (though flawed) privileges an intuitive, subjective, humanist agenda."
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Searching for new physics with Fermilab’s proton beam
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms
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Global Standard Model analyses for new physics searches
… and observational arguments for the existence of physics beyond the SM (BSM). Yet, no sign of it has been directly observed at colliders, suggesting the existence of a mass gap between the SM particles and the undiscovered ones. This has motivated the systematic use of effective field theories …
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Searches for new physics with the ATLAS experiment
… frontiers of energy and intensity in particle physics. In 2015, the LHC resumed proton–proton collisions at a centre-of-mass energy of 13 TeV. This increase over previous operation grants an enhancement in sensitivity to many processes beyond those of the Standard Model. Extra-dimensional …
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Probing New Physics with Spectroscopy of Trapped Ions
… understanding of the Universe, and probing physics beyond the SM, including dark matter. In particular, it has been proposed that a new hypothetical elementary boson, a dark-matter candidate, can violate an SM prediction: linear distributions of measured isotope shifts (ISs) mapped onto …
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Constraints on New Physics from Various Neutrino Experiments
… and future neutrino experiments designed to test physics beyond the Standard Model. First, we analyze potential new physics explanations of the NuTeV anomaly and check their compatibility with the most recent experimental data. The models we consider are: gauged Lmu-Ltau, gauged B-3Lmu, and S1, …
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Searches for New Physics at the Large Hadron Collider
… not only in both experimental and theoretical physics, but also in advanced machine learning techniques that have proven successful in recent years. This thesis provides a pedagogical overview of particle physics analyses at the Large Hadron Collider, including both tried-and-true supervised …
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Model independent search for new physics at the Tevatron
… theoretical reasons to expect the appearance of new physics, possibly at the energy scale of few TeV. Several possible theories of new physics have been proposed, each with unknown probability to be confirmed. Instead of arbitrarily choosing to examine one of those theories, this thesis is about …
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Precision Metrology with Ytterbium Ions for New Physics Search
Modern physics faces a growing discrepancy between the success of the Standard Model and the body of evidence pointing to the New Physics beyond it. A powerful method of New Physics searches is using quantum sensing tools based on Atomic, Molecular, and Optical physics. In particular, the modern …
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Phenomenological aspects of new physics at high energy hadron colliders
… contains studies of phenomenological 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 …
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Exploring Non-Minimality in New Physics Beyond the Standard Model
The need to extend the Standard Model of particle physics is now well established with a multitude of observations heralding the existence of new physics beyond the realms of our present understanding. A plethora of new theoretical possibilities have been proposed to this end, each with vastly …
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Constraints on New Physics from Neutrino and Other Particle Experiments
… and future experiments to extract information on physics beyond the Standard Model. We use the Jacobi method to derive a set of simplified expressions for the probabilities of neutrino oscillations in matter. we show the possible constraints that can be placed on various models beyond the Standard …
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Exploration of models of dark matter and portals to new physics
Although the Standard Model of particle physics has seen tremendous experimental success, there remain still unanswered questions. One such question is the nature of dark matter, which has been only observed through its gravitational effects and yet comprises about 80% of all matter in the …
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New physics searches in the ZZ sector with the ATLAS experiment
… and, if observed, would be a direct probe of new physics beyond the Standard Model. A set of criteria are outlined to select events recorded by ATLAS in two such channels, ZZ to llll(l = e, mu) and ZZ to llnunu. With 1 fb-1 of integrated luminosity at a centre of mass energy of sqrt(s) = 7 …
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Machine learning based searches for new physics at the ATLAS experiment
… the ATLAS experiment at the LHC is to discover new physics. In recent years, however, such discoveries have been scarce, creating a need for more sophisticated analysis techniques to probe for new physics in more intricate ways. This thesis focuses on two searches for new physics using machine …
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