UPPER BOUND ON CHARM QUARKS IN NUCLEONS FROM THE CROSS SECTION FOR zj~(3100) PHOTOPRODUCTION”
نویسنده
چکیده
A Drell-Yan type calculation of $(3100) photoproduction based on the recent data from SPEAR gives a surprisingly large cross section. If the results of the photoproduction experiment at FNAL are similar to naive VMD expectations, a stringent upper bound on charmed quarks in nucleons is obtained. A consequence for vWz at high o is also noted. (Submitted to Phys. Rev. Letters) * Work supported by Energy Research and Development Administration. t NRC of Canada Postdoctoral Fellow.
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