J/ψ production via χc decays in 920 GeV pA interactions

2002/11/20 by B Collaboration, I. Abt, Alexander S. Abyzov +97 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex

paper · pdf · doi:10.1016/s0370-2693(03)00407-6

published as Phys.Lett.B561:61-72,2003 · 16 pages, 5 figs

arxiv created 2002/11/20 · openalex publication_date 2003/04/30 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Using data collected by the HERA-B experiment, we have measured the fraction of Jψ's produced via radiative chi_c decays in interactions of 920 GeV protons with carbon and titanium targets. We obtained R_χc = 0.32 ± 0.06_stat ± 0.04_sys for the fraction of Jψfrom chi_c decays averaged over proton-carbon and proton-titanium collisions. This result is in agreement with previous measurements and is compared with theoretical predictions.

Citations

• Production of Prompt Charmonia ine+e−Annihilation ats≈10.6GeV

Cited by

• Simulation study of χ c →J/Ψ+γ detection with J/Ψ→e + e − in pp collisions in the ALICE experiment at LHC