ABSTRACT We calculate the associated production of a pseudoscalar (A) with a pair of heavy quarks at hadonic colliders, namely p pbar, pp →QQA + X for Q = b, t and X the remaining partonic interactions, including one-loop QCD corrections, i.e. at Next-to-leading Order (NLO) in QCD. The one-loop amplitude for the parton level processes q qbar, gg → Q Qbar A is calculated both with a traditional Feynman-diagram approach and with more recently proposed on-shell methods and unitarity based techniques. We use this process as a testing ground to learn and compare the new on-shell methods to more traditional techniques in a case where several massive particles are involved. We present results for the full NLO hadronic cross section, at both the Tevatron (p pbar) and the Large Hadron Collider (pp) with the aim to further aid and constrain the parameter space of models with pseudoscalar production at particle colliders. / A Dissertation submitted to the Department of Physics in partial fulfillment of the requirements for the degree of Doctor of Philosophy. / Summer Semester, 2012. / June 29, 2012. / HIGGS, LHC PHYSICS, ON-SHELL METHODS, OPP, QCD, QUANTUM FIELD THEORY / Includes bibliographical references. / Laura Reina, Professor Directing Thesis; Paolo Aluffi, University Representative; Harrison B. Prosper, Committee Member; Takemichi Okui, Committee Member; Simon Capstick, Committee Member.
| Identifer | oai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_183151 |
| Contributors | Thayer, Benjamin J. (Benjamin Joseph) (authoraut), Reina, Laura (professor directing thesis), Aluffi, Paolo (university representative), Prosper, Harrison B. (committee member), Okui, Takemichi (committee member), Capstick, Simon (committee member), Department of Physics (degree granting department), Florida State University (degree granting institution) |
| Publisher | Florida State University, Florida State University |
| Source Sets | Florida State University |
| Language | English, English |
| Detected Language | English |
| Type | Text, text |
| Format | 1 online resource, computer, application/pdf |
| Rights | This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). The copyright in theses and dissertations completed at Florida State University is held by the students who author them. |
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