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Measurement of b-Quark Fragmentation Fractions in pp Collisions at s√=1.8TeV

CollaborationWith : Clark, Allan Geoffrey / Kambara, Hisanori / Speer, Thomas / Strumia Michelini, Federica / Wu, Xin
Published in Physical review letters. 2000, vol. 84, no. 8, p. 1664-1668
Abstract We have studied the production of B hadrons in 1.8-TeV pp¯ collisions. We present measurements of the fragmentation fractions, fu, fd, fs, and fbaryon, of produced b quarks that yield B+, B0, B0s, and Λ¯0b hadrons. Reconstruction of five electron-charm final states yields fs/(fu+fd)=0.213±0.068 and fbaryon/(fu+fd)=0.118±0.042, assuming fu=fd. If all B hadrons produced in pp¯ collisions cascade to one of these four hadrons, we determine fu=fd=0.375±0.023, fs=0.160±0.044, and fbaryon=0.090±0.029. If we do not assume fu=fd, we find fd/fu=0.84±0.16.
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CDF COLLABORATION. Measurement of b-Quark Fragmentation Fractions in pp Collisions at s√=1.8TeV. In: Physical review letters, 2000, vol. 84, n° 8, p. 1664-1668. doi: 10.1103/PhysRevLett.84.1663 https://archive-ouverte.unige.ch/unige:37878

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Deposited on : 2014-06-17

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