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"Being" a Stickist: A Phenomenological Consideration of "Dwelling" in a Virtual Music Scene

Description: Musical instruments are not static, unchanging objects. They are, instead, things that materially evolve in symmetry with human practices. Alterations to an instrument's design often attend to its ergonomic or expressive capacity, but sometimes an innovator causes an entirely new instrument to arise. One such instrument is the Chapman Stick. This instrument's history is closely intertwined with global currents that have evolved into virtual, online scenes. Virtuality obfuscates embodiment, but … more
Date: May 2010
Creator: Hodges, Jeff
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

SUSY at the ILC and Solving the LHC Inverse Problem

Description: Recently a large scale study of points in the MSSM parameter space which are problematic at the Large Hadron Collider (LHC) has been performed. This work was carried out in part to determine whether the proposed International Linear Collider (ILC) could be used to solve the LHC inverse problem. The results suggest that while the ILC will be a valuable tool, an energy upgrade may be crucial to its success, and that, in general, precision studies of the MSSM are more difficult at the ILC than has… more
Date: May 28, 2008
Creator: Gainer, James S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Factorization and resummation for collinear poles in QCD amplitudes

Description: We study the origin of subleading soft and collinear poles of form factors and amplitudes in dimensionally-regulated massless gauge theories. In the case of form factors of fundamental fields, these poles originate from a single function of the coupling, denoted G({alpha}{sub s}), depending on both the spin and gauge quantum numbers of the field. We relate G({alpha}{sub s}) to gauge-theory matrix elements involving the gluon field strength. We then show that G({alpha}{sub s}) is the sum of thre… more
Date: May 28, 2008
Creator: Dixon, Lance J.; Magnea, Lorenzo & Sterman, George
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Identification of the Origin of Monojet Signatures at the LHC

Description: Several new physics scenarios can lead to monojet signatures at the LHC. If such events are observed above the Standard Model background it will be important to identify their origin. In this paper we compare and contrast these signatures as produced in two very different pictures: vector or scalar unparticle production in the scale-invariant/conformal regime and graviton emission in the Arkani-Hamed, Dimopoulos and Dvali extra-dimensional model. We demonstrate that these two scenarios can be d… more
Date: May 13, 2008
Creator: Rizzo, Thomas G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Heavy Quarkonium Production at LHC through W Boson Decays

Description: The production of the heavy (c{bar c})-quarkonium, (c{bar b})-quarkonium, and (b{bar b})-quarkonium states [({bar Q}') quarkonium for short], via the W{sup +} semi-inclusive decays, has been systematically studied within the framework of the nonrelativistic QCD. In addition to the two color-singlet S-wave states, we also discuss the production of the four color-singlet P-wave states |(Q{bar Q}')({sup 1}P{sub 1}){sub 1}> and |(Q{bar Q}')({sup 3}P{sub J}){sub 1}> [with J = (0,1,2)] together… more
Date: May 22, 2012
Creator: Liao, Qi-Li; U., /Chongqing; Wu, Xing-Gang; /SLAC, /Chongqing U.; Jiang, Jun; Yang, Zhi et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Application of the Principle of Maximum Conformality to Top-Pair Production

Description: A major contribution to the uncertainty of finite-order perturbative QCD predictions is the perceived ambiguity in setting the renormalization scale {mu}{sub r}. For example, by using the conventional way of setting {mu}{sub r} {element_of} [m{sub t}/2, 2m{sub t}], one obtains the total t{bar t} production cross-section {sigma}{sub t{bar t}} with the uncertainty {Delta}{sigma}{sub t{bar t}}/{sigma}{sub t{bar t}} {approx} (+3%/-4%) at the Tevatron and LHC even for the present NNLO level. The Pri… more
Date: May 13, 2013
Creator: Brodsky, Stanley J.; Wu, Xing-Gang & Dept of Physics, Chongqing University, China
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Application of the Principle of Maximum Conformality to the Top-Quark Forward-Backward Asymmetry at the Tevatron

Description: The renormalization scale uncertainty can be eliminated by the Principle of Maximum Conformality (PMC) in a systematic scheme-independent way. Applying the PMC for the t{bar t}-pair hadroproduction at the NNLO level, we have found that the total cross-sections {sigma}{sub t{bar t}} at both the Tevatron and LHC remain almost unchanged when taking very disparate initial scales {mu}{sub R}{sup init} equal to m{sub t}, 10 m{sub t}, 20 m{sub t} and {radical}s, which is consistent with renormalizatio… more
Date: May 14, 2012
Creator: Brodsky, Stanley J. & Wu, Xing-Gang
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Singlet scalars as Higgs imposters at the Large Hadron Collider

Description: An electroweak singlet scalar can couple to pairs of vector bosons through loop-induced dimension five operators. Compared to a Standard Model Higgs boson, the singlet decay widths in the diphotons and Z{gamma} channels are generically enhanced, while decays into massive final states like WW and ZZ are kinematically disfavored. The overall event rates into {gamma}{gamma} and Z{gamma} can exceed the Standard Model expectations by orders of magnitude. Such a singlet may appear as a resonant signa… more
Date: May 1, 2011
Creator: Low, Ian; Lykken, Joseph & Shaughnessy, Gabe
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Unanswered Questions in the Electroweak Theory

Description: This article is devoted to the status of the electroweak theory on the eve of experimentation at CERN's Large Hadron Collider. A compact summary of the logic and structure of the electroweak theory precedes an examination of what experimental tests have established so far. The outstanding unconfirmed prediction of the electroweak theory is the existence of the Higgs boson, a weakly interacting spin-zero particle that is the agent of electroweak symmetry breaking, the giver of mass to the weak g… more
Date: May 1, 2009
Creator: Quigg, Chris
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Exotic Effects at the Charm Threshold and Other Novel Physics Topics at JLab-12 GeV

Description: I briefly survey a number of novel hadron physics topics which can be investigated with the 12 GeV upgrade at J-Lab. The topics include new the formation of exotic heavy quark resonances accessible above the charm threshold, intrinsic charm and strangeness phenomena, the exclusive Sivers effect, hidden-color Fock states of nuclei, local two-photon interactions in deeply virtual Compton scattering, and non-universal antishadowing.
Date: May 3, 2012
Creator: Brodsky, Stanley J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Measurements of top quark properties at the Tevatron collider

Description: The discovery of the top quark in 1995 opened a whole new sector of investigation of the Standard Model; today top quark physics remains a key priority of the Tevatron program. Some of the measurements of top quark properties, for example its mass, will be a long-standing legacy. The recent evidence of an anomalously large charge asymmetry in top quark events suggests that new physics could couple preferably with top quarks. I will summarize this long chapter of particle physics history and dis… more
Date: May 1, 2011
Creator: Margaroli, Fabrizio
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Reach the Bottom Line of the Sbottom Search

Description: We propose a new search strategy for directly-produced sbottoms at the LHC with a small mass splitting between the sbottom and its decayed stable neutralino. Our search strategy is based on boosting sbottoms through an energetic initial state radiation jet. In the final state, we require a large missing transverse energy and one or two b-jets besides the initial state radiation jet. We also define a few kinematic variables to further increase the discovery reach. For the case that the sbottom m… more
Date: May 22, 2012
Creator: Alvarez, Ezequiel & Bai, Yang
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Phenomenology of Fostering Learning: Alternate Reality Games and Transmedia Storytelling

Description: This dissertation presents the essence of the experience of instructional designers and instructors who have used alternate reality games (ARGs) and transmedia storytelling (TS) for teaching and learning. The use of game-like narratives, such as ARGs and TS, is slowly increasing. However, we know little about the lived experiences of those who have implemented such transmedia experiences in formal or informal learning. The data consists of written transcripts from interviews with 11 co-research… more
Date: May 2016
Creator: Wakefield, Jenny S.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A Repository for Beyond-the-Standard-Model Tools

Description: To aid phenomenological studies of Beyond-the-Standard-Model (BSM) physics scenarios, a web repository for BSM calculational tools has been created. We here present brief overviews of the relevant codes, ordered by topic as well as by alphabet.
Date: May 1, 2005
Creator: Skands, P.; Fermilab; Richardson, P.; Allanach, B. C.; Baer, H.; Belanger, G. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

New Physics Searches at the Tevatron and the LHC

Description: The Tevatron Run-II started data-taking in spring 2001 and several searches for new particles have been performed. The preliminary 2005 results are concisely reviewed for the experiments CDF and D0. Model-independent and model-dependent limits on Higgs boson and Supersymmetric particle production are set and interpretations are given. Several limits from the LEP era have been extended. The outlook for the Tevatron and the prospects for the ATLAS and CMS experiments at the LHC for selected searc… more
Date: May 1, 2006
Creator: Sopczak, Andre
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Heavy-to-light Meson Form Factors at Large Recoil

Description: Heavy-to-light meson form factors at large recoil can be described using the same techniques as for hard exclusive processes involving only light hadrons. Two competing mechanisms appear in the large-recoil regime, describing so-called ''soft-overlap'' and ''hard-scattering'' components of the form factors. It is shown how existing experimental data from B and D decays constrain the relative size of these components, and how lattice data can be used to study properties such as the energy scalin… more
Date: May 27, 2005
Creator: Hill, Richard J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Probing low-x QCD with cosmic neutrinos at the Pierre Auger Observatory

Description: The sources of the observed ultra-high energy cosmic rays must also generate ultra-high energy neutrinos. Deep inelastic scattering of these neutrinos with nucleons on Earth probe center-of-mass energies {radical}s {approx} 100 TeV, well beyond those attainable at terrestrial colliders. By comparing the rates for two classes of observable events, any departure from the benchmark (unscreened perturbative QCD) neutrino-nucleon cross-section can be constrained. Using the projected sensitivity of t… more
Date: May 1, 2006
Creator: Anchordoqui, Luis A.; Cooper-Sarkar, Amanda M.; Hooper, Dan & Sarkar, Subir
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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