Measurements of Charm Fragmentation into
نویسندگان
چکیده
A study of charm fragmentation into D + s and D + s in e + e ? annihilations at p s = 10:5 GeV is presented. This study using 4:720:05 fb ?1 of CLEO II data reports measurements of the cross-sections (D + s) and (D + s) in momentum regions above x = 0:44, where x is the D s momentum divided by the maximum kinematically allowed D s momentum. The D s vector to vector plus pseu-doscalar production ratio is measured to be P V (x(D + s) > 0:44) = 0:44 0:04.
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تاریخ انتشار 2007