Lepton Photon 2009
Sakue Yamada, Professor Emeritus of the University of Tokyo, research director for the International Linear Collider and member of the FRA Board of Directors, Pier Oddone, Fermilab Director and Rolf Heuer, director of CERN, at Lepton Photon 2009. Image courtesy of Barbara Warmbein, DESY.
Hamburg, Germany was the venue for the XXIV International Symposium on Lepton Photon Interactions at High Energies, http://lp09.desy.de/. From August 22 through the 27 physicists from around the world congregated to hear and share the latest physics results and plans for the future. This year's symposium follows the one in Daegu, Korea in 2007 and the one in Uppsala, Sweden in 2005. Hamburg, with its superposition of baroque and modern architecture, the most bridges of any city in the world, a modern conference center, excellent public transportation and its citizens out and about enjoying the all -too-brief summer, provided a great venue for the meeting.
Lepton-Photon Symposiaalternate with the International Conferences on High Energy Physics (ICHEP) on a yearly basis. These two types of meetings are the principal yearly meetings of the world high energy community. Again at this year's symposium the results from Fermilab played a starring role. We all missed results from the LHC, which we will hopefully hear about next year at ICHEP 2010.
The Tevatron collaborations alone presented about 80 new results across a broad spectrum of physics, including precision measurements of Standard Model parameters, precise tests of quantum chromodynamics, new Higgs limits, new combined measurements of the W mass, new results on CP violation in the decay of the Bs, the measurement of many parameters of the top quark, and several limits on proposed new particles. The plenary talks mentioned other important results from Fermilab, especially on neutrinos and dark matter searches.
One of the many virtues of a meeting like this is the ability to interact with colleagues from around the world to plan future activities. In addition to the informal conversations at the symposium, I attended two formal activities: the ILC Steering Committee (ILCSC) and the meeting of the International Committee on Future Accelerators (ICFA). These committee meetings bring together the leadership of high energy physics in Europe, the US and Asia to coordinate programs and activities. In these meetings one truly gets the sense that we are a global community: that we can put away our differences and come together on a common quest.