Designing Universal Logic Module FPGA Architectures for Use With Ambipolar Transistor Technology

Recent publications show a rise of ambipolar transistor technology research and associated implementations of multi-function logic cells in these technologies. Special properties of these technologies enable implementations of Universal Logic Modules (ULMs) using few transistors, which draws renewed interest to use such ULMs as basic logic blocks for FPGA architectures. Unlike N-input Lookup Tables (LUTs), most ULMs only implement a fixed subset of the possible Boolean functions. In this work, we first adapt the Verilog-to-Routing (VTR) 8.0 toolflow to target such reduced-function ULM primitives. We then modify VTR\u27s flagship 40nm architecture to use an ULM primitive instead of LUTs, modeling the double-gate carbon nanotube FET 8-function logic gate CNT-DR8F published by Liu et al. Using VTR\u27s extensive benchmark framework, we analyze effects caused by the limited set of function offered by these primitives. To counter some of the observed effects, we present various clustered architectures, where multiple ULM cells are combined in a logic block. We conclude with an analysis of various parameters which affect performance of the different implementations

The fate of the Littlest Higgs Model with T-parity under 13 TeV LHC Data

We exploit all LHC available Run 2 data at center-of-mass energies of 8 and 13 TeV for searches for physics beyond the Standard Model. We scrutinize the allowed parameter space of Little Higgs models with the concrete symmetry of T-parity by providing comprehensive analyses of all relevant production channels of heavy vectors, top partners, heavy quarks and heavy leptons and all phenomenologically relevant decay channels. Constraints on the model will be derived from the signatures of jets and missing energy or leptons and missing energy. Besides the symmetric case, we also study the case of T-parity violation. Furthermore, we give an extrapolation to the LHC high-luminosity phase at 14 TeV as well.Comment: 50 pages, 32 figure

NLO Cross Sections for the LHC using GOLEM: Status and Prospects

In this talk we review the GOLEM approach to one-loop calculations and present an automated implementation of this technique. This method is based on Feynman diagrams and an advanced reduction of one-loop tensor integrals which avoids numerical instabilities. We have extended our one-loop integral library golem95 with an automated one-loop matrix element generator to compute the virtual corrections of the process $q\bar{q}\to b\bar{b}b\bar{b}$. The implementation of the virtual matrix element has been interfaced with tree-level Monte Carlo programs to provide the full result for the above process.Comment: 8 pages, 1 figure, contribution to the proceedings of the 9th International Symposium on Radiative Corrections (RADCOR 2009), October 25-30 2009, Ascona, Switzerlan

Implications of the 750 GeV gamma-gamma Resonance as a Case Study for the International Linear Collider

If the gamma-gamma resonance at 750 GeV suggested by 2015 LHC data turns out to be a real effect, what are the implications for the physics case and upgrade path of the International Linear Collider? Whether or not the resonance is confirmed, this question provides an interesting case study testing the robustness of the ILC physics case. In this note, we address this question with two points: (1) Almost all models proposed for the new 750 GeV particle require additional new particles with electroweak couplings. The key elements of the 500 GeV ILC physics program---precision measurements of the Higgs boson, the top quark, and 4-fermion interactions---will powerfully discriminate among these models. This information will be important in conjunction with new LHC data, or alone, if the new particles accompanying the 750 GeV resonance are beyond the mass reach of the LHC. (2) Over a longer term, the energy upgrade of the ILC to 1 TeV already discussed in the ILC TDR will enable experiments in gamma-gamma and e+e- collisions to directly produce and study the 750 GeV particle from these unique initial states.Comment: 39 pages, 5 figures, 5 tables; v2: some references adde