We explore the influence of an anomalous chromomagnetic moment n on the production characteristics of top quark pairs at the Fermilab Tevatron with a center-of-mass energy of & = 1.8TeV. We find that for top quarks in the 175 GeV mass range, present measurements are probing values of n of order 0.25. We discuss a class of technicolor models with techniscalars which may produce such large values of n in conjunction with the generation of mt. For n's in this range we find that significant enhancements in both the qq, gg -+ t f production cross sections are obtained.Once sufficient statistics have been accumulated and QCD uncertainties are under control, future high precision measurements at the Fermilab Tevatron will eventually be sensitive to values of K with magnitudes smaller than --0.1.PACS number(s): 14.65. Ha, 12.60.Jv, 12.60.Nz, 14.70.Dj The discovery of the top quark a t the Fermilab Tevatron by the Collider Detector at Fermilab (CDF) and DO Collaborations [1,2] in the mass range anticipated by precision electroweak data [3] represents a great triumph for the standard model (SM). Once more data become avail-\ ,
As is well known, the search for and eventual identification of dark matter in supersymmetry requires a simultaneous, multi-pronged approach with important roles played by the LHC as well as both direct and indirect dark matter detection experiments. We examine the capabilities of these approaches in the 19-parameter p(henomenological)MSSM which provides a general framework for complementarity studies of neutralino dark matter. We summarize the sensitivity of dark matter searches at the 7, 8 (and eventually 14) TeV LHC, combined with those by Fermi, CTA, IceCube/DeepCore, COUPP, LZ and XENON. The strengths and weaknesses of each of these techniques are examined and contrasted and their interdependent roles in covering the model parameter space are discussed in detail. We find that these approaches explore orthogonal territory and that advances in each are necessary to cover the Supersymmetric WIMP parameter space. We also find that different experiments have widely varying sensitivities to the various dark matter annihilation mechanisms, some of which would be completely excluded by null results from these experiments.
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