TY - JOUR
T1 - Measurement of b-quark fragmentation fractions in pp¯ collisions at √s = 1.8TeV
AU - CDF Collaboration
AU - Affolder, T.
AU - Akimoto, H.
AU - Akopian, A.
AU - Albrow, M. G.
AU - Amaral, P.
AU - Amendolia, S. R.
AU - Amidei, D.
AU - Antos, J.
AU - Apollinari, G.
AU - Arisawa, T.
AU - Asakawa, T.
AU - Ashmanskas, W.
AU - Atac, M.
AU - Azzi-Bacchetta, P.
AU - Bacchetta, N.
AU - Bailey, M. W.
AU - Bailey, S.
AU - De Barbaro, P.
AU - Barbaro-Galtieri, A.
AU - Barnes, V. E.
AU - Barnett, B. A.
AU - Barone, M.
AU - Bauer, G.
AU - Bedeschi, F.
AU - Belforte, S.
AU - Bellettini, G.
AU - Bellinger, J.
AU - Benjamin, D.
AU - Bensinger, J.
AU - Beretvas, A.
AU - Berge, J. P.
AU - Berryhill, J.
AU - Bertolucci, S.
AU - Bevensee, B.
AU - Bhatti, A.
AU - Bigongiari, C.
AU - Binkley, M.
AU - Bisello, D.
AU - Blair, R. E.
AU - Blocker, C.
AU - Bloom, K.
AU - Blumenfeld, B.
AU - Blusk, B. S.
AU - Bocci, A.
AU - Bodek, A.
AU - Bokhari, W.
AU - Bolla, G.
AU - Bonushkin, Y.
AU - Bortoletto, D.
AU - Yu, S.
PY - 2000
Y1 - 2000
N2 - 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 B¯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.
AB - 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 B¯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.
UR - http://www.scopus.com/inward/record.url?scp=0000512495&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.84.1663
DO - 10.1103/PhysRevLett.84.1663
M3 - 期刊論文
C2 - 21923205
AN - SCOPUS:0000512495
SN - 0031-9007
VL - 84
SP - 1663
EP - 1668
JO - Physical Review Letters
JF - Physical Review Letters
IS - 8
ER -