Completed Physics & Astronomy Computing & AI

Experimental Particle Physics

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AI plain-English summary

Physicists are hunting for the Higgs boson and new particles at the Large Hadron Collider (LHC) and the Tevatron, using data from the ATLAS, LHCb, CDF, and ZEUS experiments. This research addresses a fundamental gap in our understanding of the universe: the origin of particle mass and why matter dominates over antimatter. The team will analyse Higgs data to confirm or rule out its existence, search for rare particle decays that could reveal new forces, and measure CP violation—a subtle asymmetry between matter and antimatter that may explain why the cosmos contains something rather than nothing. If successful, this work will either confirm the Standard Model of particle physics or, more excitingly, point to new physics beyond it. The immediate impact is purely fundamental science: deeper knowledge of nature’s building blocks. Historically, such curiosity-driven research has led to unexpected technologies—the World Wide Web was invented at CERN to share particle physics data. Future applications could emerge from the advanced detectors, computing grids, and analysis techniques developed here, though none are guaranteed. The project also trains the next generation of physicists and engineers who will apply these skills across science and industry.

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The three-year timescale is particularly exciting with the possibility of Higgs discovery at the Tevatron and the opening of the new energy frontier at the LHC: we will focus our efforts on Higgs analysis, discovery and interpretation, and the search for new physics in CP violation and rare B decays. Improved analysis techniques, well-calibrated detectors, increased computing power and theoretical input will be essential. All academics are heavily involved in the LHC programme and our strategy is to generate leading-edge physics results from two experiments (ATLAS and LHCb) based upon expertise developed in those experiments and from CDF and ZEUS, as well as ALEPH. We plan to provide timely first results in Higgs limit setting and discovery for ATLAS and CDF. We will secure high-quality completion on CDF where we have set demanding goals in the Higgs analyses that will benefit ATLAS. Our ZEUS involvements in the hadronic final state and prompt photon sectors will similarly underpin first ATLAS results. Based on our earlier work, we will be key players in answering questions concerning the origin of mass and the nature of CP violation. For LHCb, we will discover rare two body B decays and search for CP violation in charm with early data samples. We will perform a detailed study of a rare decay process and a comparison of tree and loop diagram mediated measurements of the unitarity angle gamma that offer significant new physics sensitivity. We continue to invest in and promote a world-class Detector Development activity to enable longer-term initiatives and our Grid strength is aimed at maximising our impact in LHC physics. We additionally lever support through Scottish Funding Council (SFC) and the Faculty in these areas. We have set up physics analysis streams for ATLAS and LHCb, using the Grid, and will fully exploit the first LHC data. We will also maintain our involvement in longer-term initiatives where we have leadership roles. We presently participate in the LHCb upgrade, the ATLAS-FP initiative, the super-LHC intensity upgrades and future neutrino initiatives. We anticipate greater involvement in linear collider work, contingent upon discoveries made at the LHC. Over the next three years we will develop these areas and progress those where early investment will become most productive, consistent with the highest priority of LHC physics exploitation.

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Researchers

Aidan Robson (Co-Investigator)Anthony Doyle (Principal Investigator)Christopher Parkes (Co-Investigator)Craig Buttar (Co-Investigator)David Britton (Co-Investigator)Paul Soler (Co-Investigator)Peter John Bussey (Co-Investigator)Richard St Denis (Co-Investigator)Valentine O'Shea (Co-Investigator)

Related Research

Grants with similar aims, by meaning.

Experimental Particle Physics: Glasgow 2006-11
Experimental Particle Physics: 2016 Equipment Request to the Particle Physics Grants Panel: Addendum to the Consolidated Grant Award (ST/N000358/1)
Experimental Particle Physics: Equipment Request to the STFC Particle Physics Grants Panel: Addendum to the Consolidated Grant Award (ST/N000358/1)
Equipment Request to the STFC Projects Peer Review Panel
Experimental Particle Physics: Equipment Request to the STFC Particle Physics Grants Panel: Addendum to the Consolidated Grant Award (ST/K001205/1)

Original classification

Research Grant

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