Large Hadron Collider, Stage 2: the search for new particles and forces


Tuesday, July 12 2016 - 12:00 pm, PDT
Michael Peskin
Stanford University

In 2010, the Large Hadron Collider (LHC) at the laboratory CERN in Geneva, Switzerland, began its exploration of physics at distances 10,000 smaller than an atomic nucleus. The first data-taking period of the LHC ran from 2010 to 2013, colliding protons at energies of 7 and 8 TeV (trillion electron volts). Many novel observations were made, including the discovery of the long-sought Higgs boson. However, the most fundamental questions that motivated the LHC remain unanswered. The second data-taking period of the LHC began last summer, at the higher energy of 13 TeV. Results from the first batch of higher-energy data have already shifted the landscape, with more powerful exclusion of some hypotheses and tantalizing hints supporting others. The results from the next batch of data are highly anticipated; they will be announced in early August. In this talk, I will review the search for new basic interactions in nature and the experimental methods that the LHC brings to this question. I will describe the implications of the first data at 13 TeV and preview some of the results that might appear later this summer.


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