J/psi,psi(2S) to mu+ mu- and B to J/psi,psi(2S) Cross Sections

1994/12/23 by The CDF Collaboration
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex

paper · pdf · doi:10.48550/arxiv.hep-ex/9412013

11 pages

arxiv created 1994/12/23 · openalex publication_date 1994/12/23 · arxiv updated 2012/08/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

This paper presents a measurement of J/psi,psi(2S) differential cross sections in p-pbar collisions at square root s = 1.8 TeV. The cross sections are measured above 4 GeV/c in the central region (|eta| < 0.6) using the dimuon decay channel. The fraction of events from B decays is measured, and used to calculate b quark cross sections and direct J/psi,psi(2S) cross sections. The direct cross sections are found to be more than an order of magnitude above theoretical expectations.

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