Central exclusive χ c meson production at the Tevatron revisited
نویسندگان
چکیده
منابع مشابه
Bc meson production at the Tevatron Revisited
CDF recently measured the quantity σ(B + c ) σ(B+) BR(B c →J/ψlν) BR(B+→J/ψK+) , from which we determine the ratio σ(B + c ) σ(b̄) to be (2.08 −0.95) × 10−3. If we interpret this ratio as a fragmentation probability, we show that this ratio is consistent with the prediction by perturbative QCD Bc fragmentation function of Braaten, Cheung, and Yuan. We also estimate the parameter mc (charm quark ...
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Using a sample of 9.7 × 10 BB meson pairs collected with the CLEO detector, we study B decays to the χc1 and χc2 charmonia states, which are reconstructed via their radiative decays to J/ψ. We first measure the branching fraction for inclusive χc1 production in B decays to be B(B → χc1X) = (4.14 ± 0.31 ± 0.40) × 10 , where the first uncertainty is statistical and the second one is systematic. W...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2009
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-009-1214-9