The standard model in particle physics is such a successful model, which agrees well with almost all experimental tests in the past more than 20 years. However, there is large hope that new physics beyond the standard model would show up in the Large Hadron Collider (LHC). Meanwhile, many direct and indirect dark matter searches have shown signs of potential signals. If con¯rmed, the properties of the most mysterious but dominant part of matter constitute will be unveiled soon. In this thesis, we mainly have three sections. First, we will talk in detail about LHC phenomenology. This includes several topics, recovering particle masses from missing energy signatures with displaced tracks, diagnosing the top-quark angular asymmetry using LHC in- trinsic charge asymmetries, signature searches, including multi-lepton and diphoton searches, in the early LHC. After collider phenomenology, we will discuss a study for dark matter, which is focused on the indirect search, i.e. gamma ray spectra from dark matter annihilation and decay. And in the last section, we will cover several topics about some studies on formal side of physics, including metastable spontaneous SUSY breaking in a landscape of fuzzy droplets, entropic force and its °uctuation from gauge/gravity duality.
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Physics and Astronomy
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Rutgers University Electronic Theses and Dissertations
Rutgers University. Graduate School - New Brunswick
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