Dr Adrian Bevan

Dr Adrian Bevan

Reader in Particle Physics
Address:
School of Physics and Astronomy
Queen Mary, University of London
327 Mile End Road, London, E1 4NS

Telephone: 020 7882 6549
Room: G O Jones 403
Email:

Teaching

I teach the following undergraduate courses

  • Statistical Data Analysis (PHY328)

In the past I have also taught undergraduate courses entitled

  • Mathematical Techniques 1
  • Quantum Mechanics B
  • Scientific Measurements

Over the years I have given graduate lectures on B Physics (Dubna, 2008), CP violation (London), Flavor Physics at e+e- machines (Valencia, 2013), Multivariate Analysis (SLAC, 2009, 2011), UNIX and ROOT (London and Liverpool), and tutorials on the use of fitting and multivariate analysis tools (Durham, 2007).

Research Interests

Adrian Bevan is a member of the Particle Physics Research Centre, and works on detector development for future experiments at CERN, as well as having established interests in the BaBar experiment at the SLAC National Accelerator Laboratory, operated by Stanford under contract to the US Department of Energy.  His main interests reside with understanding flavour changing processes in quarks (weak decay) and leptons, and how these relate to the evolution of our universe from the Big Bang into the matter dominated state that we presently reside in.  He has recently joined the ATLAS experiment at CERN to work on B physics.

Adrian is the spokesperson for the Arachnid Collaboration, developing CMOS based pixel technology for possible use in future experiments, such as SuperB (Italy; this programme was cancelled in 2012) and ALICE (CERN), as well as any possible future Higgs Factory or e+e- linear collider.  This technology has a number of potential advantages over existing alternatives, encompassing both performance gains and potential cost-reduction for large scale systems.  In addition to this activity, Adrian runs the QMUL ATLAS Semiconductor Tracker upgrade activities, focusing on the design and construction of a replacement silicon detector for the ATLAS upgrade at the start of the next decade.

Recent phenomenological papers include discussions on testing the weak interaction via CP violation in charm decays and studying the behaviour of the weak interaction under time-reversal symmetries in order to complement the CP behaviour (testing the quantum arrow of time).

Adrian was physics coordinator for the SuperB experiment until the cancellation of the project at the end of 2012.  His particular interest involved understanding the interplay between different observables and the multitude of hypothesised models of new physics extensions to the Standard Model of Particle Physics.  It is not clear, a priori, how a single measurement can be used to guarantee that one can elucidate the structure of new physics, as that requires the luxury of hindsight that comes to pass with some discovery having been made.  Instead the old fashioned approach of understanding patterns of deviation from expected behaviour and correlating otherwise unrelated effects together to build a higher theory is the approach we have to adopt in order to make progress in the field of particle physics at this time.  As a contribution to this effort, Adrian's particular interests of quark and lepton changing processes, and in particular CP violation in B and D decays may play a role in elucidating the structure of the lagrangian describing nature at the next level.  Notable research in this area include pioneering the measurement of the unitarity triangle angles α and β using a number of different decay channels, and more recently, a pedagogical overview of how to perform time-dependent CP violation measurements at existing and future facilities, and how such measurements relate to charm mixing and the charm unitarity triangle.

Related activities

Adrian has represented QMUL on the Particle Physics User Advisory Committee, and been called upon to review proposals for for research councils Canada, Switzerland, the UK and for the ERC.  He has also organised a number of national and international meetings over the years.  Most recently Adrian organised the 1st SuperB Collaboration meeting (Sept. 2011), and  the Institute of Physics Joint HEPP and APP group meeting 2012, which was held at QMUL and is planning a workshop on the Interplay between Particle and Astroparticle physics to be held in 2014 (IPA 2014).

Adrian is one of five general editors of the Physics of the B Factories book project, which is nearing completion.  This book aims to provide a pedagogical review of the B factories, as well as the analysis tools and results that were developed over the past 13 years in order to test the Standard Model of Particle Physics.  On completion this will be published in EPJC, and appear as a book by Springer.  The PBF is now available on the archive.

In addition to this he has written a book on statistics published by Cambridge University Press entitled "Statistical data analysis for the physical sciences".

Presentations

Adrian has given seminars in a number of countries round the world, including China, Germany, Japan, Switzerland, UK, and US.  These include seminars at the following major particle physics laboratories: DESY, DESY Zeuthen, IHEP, KEK, and at SLAC. In addition to these seminars he regularly gives talks at conferences and workshops.  Adrian also gives general talks on particle physics to public audiences. Some recent highlights are listed below

A comprehensive list of Adrian's talks can be found at http://pprc.qmul.ac.uk/~bevan/talks.html.  If you would like Adrian to give a talk on particle physics suitable for a general audience, please drop him an e-mail to ask about availability.

Publications

A selection of my recent publications can be found here:

  • The Physics of Heavy Flavours at SuperB, J. Phys. G: Nucl. Part. Phys. 39 (2012) 023001.
  • Time-dependent CP asymmetries in D and B decays, PRD 84 114009 (2011).
  • Measurement of the unitarity triangle angle beta using B meson decay to Charmonium final states, Phy. Rev. D 79 072009, 2009 [c-cbar-K0(*)], and PRL 101, 021801 (2008) [J/ψ π0].
  • Measurement of the unitarity triangle angle alpha using B decays into ρ+ρ-, PRD 76, 052007 (2007).

Adrian's unitarity triangle angle measurements of α and β together provide a significant test of the CKM matrix, and in particular the Kobayashi-Maskawa mechanism for CP violation in the Standard Model.  Kobayashi and Maskawa shared the Nobel Prize for Physics in 2008 as a result of measurements such as these confirming their model of CP violation.

His recent paper on time-dependent CP asymmetries in D and B decays [PRD 84 114009 (2011)] outlines an experimental programme that can be used to test the CKM matrix description of CP violation for weak decays of up-type quarks.  In addition this paper proposes a method for measuring the charm mixing parameters that are expected to provide a more precise determination of the mixing phase than existing techniques.

A comprehensive list of Adrian's lead author publications can be found at http://pprc.qmul.ac.uk/~bevan/abevan.html.  In addition to academic articles, he has written a book on statistics published by Cambridge University Press entitled "Statistical data analysis for the physical sciences".

 

This is not an exhaustive list and I would be happy to discuss other project possibilities.