We report the full reconstruction of chi(c) mesons through the decay chain chi(c) --> J/psigamma, J/psi --> mu+mu-, using data obtained at the Collider Detector at Fermilab in 2.6 +/- 0.2 pb-1 of ppBAR collisions at square-root s = 1.8 TeV. This exclusive chi(c) sample is used to measure the chi(c)-meson production cross section times branching fractions. We obtain sigma x B = 3.2 +/- 0.4(stat)-1.1(+1.2)(syst) nb for chi(c) mesons decaying to J/psi with p(T) > 6.0 GeV/c and pseudorapidity Absolute value of eta < 0.5. From this and the inclusive J/psi cross section we calculate the inclusive b-quark cross section to be 12.0 +/- 4.5 mub for pT(b) > 8.5 GeV/c and y(b) < 1.

F., A., M., A., D., A., C., A., G., A., M., A., et al. (1993). Inclusive Chi-c and B-quark Production In (p)over-bar-p Collisions At Root-s = 1.8 Tev. PHYSICAL REVIEW LETTERS, 71(16), 2537-2541 [10.1103/PhysRevLett.71.2537].

Inclusive Chi-c and B-quark Production In (p)over-bar-p Collisions At Root-s = 1.8 Tev

PAOLETTI, RICCARDO;TURINI, NICOLA;
1993-01-01

Abstract

We report the full reconstruction of chi(c) mesons through the decay chain chi(c) --> J/psigamma, J/psi --> mu+mu-, using data obtained at the Collider Detector at Fermilab in 2.6 +/- 0.2 pb-1 of ppBAR collisions at square-root s = 1.8 TeV. This exclusive chi(c) sample is used to measure the chi(c)-meson production cross section times branching fractions. We obtain sigma x B = 3.2 +/- 0.4(stat)-1.1(+1.2)(syst) nb for chi(c) mesons decaying to J/psi with p(T) > 6.0 GeV/c and pseudorapidity Absolute value of eta < 0.5. From this and the inclusive J/psi cross section we calculate the inclusive b-quark cross section to be 12.0 +/- 4.5 mub for pT(b) > 8.5 GeV/c and y(b) < 1.
1993
F., A., M., A., D., A., C., A., G., A., M., A., et al. (1993). Inclusive Chi-c and B-quark Production In (p)over-bar-p Collisions At Root-s = 1.8 Tev. PHYSICAL REVIEW LETTERS, 71(16), 2537-2541 [10.1103/PhysRevLett.71.2537].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/40747
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