F. Abe et al., MEASUREMENT OF THE B-MESON DIFFERENTIAL CROSS-SECTION D-SIGMA DP(T) IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV/, Physical review letters, 75(8), 1995, pp. 1451-1455
This paper presents the first direct measurement of the B meson differ
ential cross section d sigma/d(pT) in <(pp)over bar> collisions at roo
t s = 1.8 TeV using a sample of 19.3 +/- 0.7 pb(-1) accumulated by the
Collider Detector at Fermilab. The cross section is measured in the c
entral rapidity region \y\ < 1 for p(T)(B) > 6.0 GeV/c by fully recons
tructing the B meson decays B+ --> J/psi K+ and B-0 --> J/psi K-0(899
), where J/psi --> mu(+)mu(-) and K-0 --> K(+)pi(-). A comparison is
made to the theoretical QCD prediction calculated at next-to-leading o
rder.