A new look at the proton

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The HERMES experiment (HERA measurement of spin). This photo shows that the entire experiment is mounted on rails and can be moved out of the ring of the particle accelerator (HERA). At the bottom left of the photo a piece of tube from the accelerato ...
The HERMES experiment (HERA measurement of spin). This photo shows that the entire experiment is mounted on rails and can be moved out of the ring of the particle accelerator (HERA). At the bottom left of the photo a piece of tube from the accelerator can be seen through which the electrons move (to the right).

Dutch researcher Paul van der Nat investigated more than three million collisions between electrons and protons. In his PhD thesis he demonstrates -for the first time– that the spin contribution of quarks to the proton can be studied by examining collisions in which two particles (hadrons) are produced.


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All News summaries for September 11, 2007

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