NIKHEF - HERMES


The objective of the HERMES experiment at DESY (Hamburg) is the study of the origin of the proton spin. By scattering polarized high-energy electrons (or positrons) from polarized targets, the amount of spin carried by the various quark types can be measured. More recently, the role of gluons and possibly even the orbital angular momentum of the quarks is being investigated.

The Dutch contribution to the HERMES experiment at DESY is a collaboration between the research groups at NIKHEF and the Vrije Universiteit in Amsterdam. First data was taken in 1995, and the experiment was closed in July 2007. Data acquired by HERMES is still actively being analyzed.





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