GridPP is a £33m, 6 year project, funded by PPARC that aims to establish a Grid for UK Particle Physics in time for the turn on of the CERN Large Hadron Collider (LHC) in 2007. In phase 1, the project established a large-scale prototype Grid across the UK. The project has now entered phase 2, and is developing the prototype testbed into a production service. LHC computing technical design repor...

A study of two-Higgs-doublet models (2HDM) in the decoupling limit reveals the existence of parameter configurations with a large triple-Higgs self-coupling as the only low-energy trace of the departure from a Standard Model (SM) Higgs sector. This observation encourages attempts to search for double Higgs production at the Large Hadron Collider (LHC) even in mass regions which have been shown ...

We investigate the correction effects of the littlest Higgs(LH) model and the SU(3) simple group model on single top production at the CERN Large Hardon Collider(LHC). We find that the new gauge boson WH predicted by the LH model can generate significantly contributions to single top production via the s-channel process qq → WH → tb. The correction terms for the tree-level Wqq couplings coming ...

We examine the possibility of distinguishing a supersymmetric gluino from a KaluzaKlein gluon of universal extra dimensions (UED) at the Large Hadron Collider (LHC). We focus on the case when all kinematically allowed tree-level decays of this particle are 3-body decays into two jets and a massive daughter (typically weak gaugino or Kaluza-Klein weak gauge boson). We show that the shapes of the...

The design of very large scale integrated (VLSI) chips is an exciting area of applying mathematics, posing constantly new challenges. We present some important and challenging open problems in various areas of chip design. Although the problems are motivated by chip design, they are formulated mathematically; understanding and solving them does not require any knowledge of chip design. We give ...

The search for the Higgs boson(s) is one of the major priorities at the upgraded Fermilab Tevatron and at the CERN Large Hadron Collider (LHC). Since Monte Carlo event generators are heavily utilized to understand and extract any possible Higgs signal, it is crucial to establish the reliability of their predictions. An understanding of the Higgs signature depends upon the understanding of the d...

In the framework of the littlest Higgs model with T-parity (LHT), we study the production processes of T-even (T+) and T-odd (T−) partners of the top quark at the Large Hadron Collider (LHC). We show that the signal events can be distinguished from the standard-model backgrounds, and that information about mass and mixing parameters of the top partners can be measured with relatively good accur...

Simultaneously with the turning-on of the Large Hadron Collider (LHC) the data taking for jet production rates will start. The study of these production rates is an important test of the Standard Model in the new energy regime accessible at the LHC. In order to discriminate possible extensions of the Standard Model accurate theoretical predictions are needed. We investigate the next-to-leading ...

In this paper, the present state of the large-eddy simulation (LES) technique is discussed. Modeling and numerical issues that are under study will be described, and results of state-of-the-art calculations will be presented to highlight the response of the subgrid-scale models to important features of the flow field. Finally, some challenges for research and applications of LES in the near fut...

We review the search for new physics to be performed at the Large Hadron Collider(LHC). Namely, we review the expectations for the Higgs boson, supersym-metry and exotica detection at LHC. We also describe the main parameters of the CMS and ATLAS detectors.