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Strange nuclei in Japan.

Strange nuclei in Japan

Physics nowadays is very much an international collaboration, and while physicists in one country or continent concentrate on a particular experimental approach, those somewhere else often try a complementary approach. Thus, while physicists in the United States and Europe approach the frontier of nuclear physics by colliding nuclei with other nuclei, the Japanese intend to see what happens when nuclei contain particles of the class called strange particles instead of some of their usual neutrons and protons. These strange particles contain a different kind of quark from those in neutrons and protons, and the purpose is to see how the introduction of this strange quark affects nuclear structure and behavior. For this work the Japanese will build an apparatus that bombards nuclei with K mesons, Toshimitsu Yamazaki of the University of Tokyo says. The new machine will be located in Tsukuba, Japan's "Science City.' Bombardment with K mesons will turn neutrons or protons into strange particles.
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Title Annotation:physics research
Publication:Science News
Date:May 17, 1986
Words:160
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