J/ψ production via χc decays in 920 GeV pA interactions
نویسندگان
چکیده
منابع مشابه
J / ψ Production via χ c Decays in 920 GeV pA Interactions The HERA - B Collaboration
Using data collected by the HERA-B experiment, we have measured the fraction of J/ψ’s produced via radiative χc decays in interactions of 920 GeV protons with carbon and titanium targets. We obtained Rχc = 0.32±0.06stat±0.04sys for the fraction of J/ψ from χc decays averaged over protoncarbon and proton-titanium collisions. This result is in agreement with previous measurements and is compared ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2003
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(03)00407-6