The ARC Centre of Excellence for Particle Physics at the Terascale (CoEPP) was established in 2011 through the award of an Australian Research Council grant of around $25 million over seven years.
The Centre is a collaborative research venture between The University of Melbourne, The University of Adelaide, The University of Sydney and Monash University. Each of the partner institutions contribute additional funding to the Centre, with The University of Melbourne hosting the head office.
Through the Centre, terascale high energy particle physics research across Australia is coordinated for the first time. Bringing together theoretical and experimental physicists, CoEPP also enables participation in the ATLAS experiment at the Large Hadron Collider at CERN in Geneva. It greatly enhances linkages with partner international organisations in the field, expanding opportunities for Australian scientists and science students.
The aims of the LHC experiment, and those of CoEPP, are to discover answers to some of the fundamental questions in physics, questions that have until now been unanswerable. The enormous amounts of energy produced by the LHC particle accelerator will allow scientists to learn how particles gain mass, explore the identity of cosmological dark matter, and enable the discovery of new physical laws.
Abstract: We propose a new method to discover light top squarks (stops) in the co-annihilation region at the Large Hadron Collider (LHC). The bino-like neutralino is the lightest supersymmetric particle (LSP) and the lighter stop is the next-to-LSP. Such scenarios can be consistent with electroweak baryogenesis and also with dark matter constraints. We consider the production of two stops in association with two b-quarks, including pure QCD as well as mixed electroweak-QCD contributions. The stops decay into a charm quark and the LSP. For a higgsino-like light chargino the electroweak contributions can exceed the pure QCD prediction. We show the size of the electroweak contributions as a function of the stop mass and present the LHC discovery reach in the stop-neutralino mass plane.
Dr.Damien George will discuss a technique that exhaustively determines all continuous symmetries of system, such as a set of coupled differential equations. This technique has wide ranging applicability to theoretical physics, and he will detail its particular use in particle physics model building, where one is able to derive relationships between free parameters such that an enhanced symmetry is obtained.
ICHEP (International Conference on High Energy Physics), often referred to as the Rochester Series, is the premier IUPAP-C11 conference in the field.
Held biannually, previous venues include Philadelphia, Moscow and Beijing and Paris. We have the support of University of Sydney, University of Adelaide, Canterbury University and the Australian Synchrotron, as well as that of many colleagues in the Asia-Pacific region and beyond. ICHEP2012 will be held in the Melbourne Convention Centre on the Yarra. Initial LHC results will be beginning to mature, new results in neutrino physics are expected and dark matter searches are on our radar.
Published: 14/12/2011
Published: 11/11/2011
Published: 10/10/2011
Published: 10/10/2011