Feasibility study for the measurement of πN\pi N transition distribution amplitudes at P\overline PANDA in pˉpJ/ψπ0\bar{p}p\to J/\psi\pi^0

Collaboration
Oct 7, 2016
25 pages
Published in:
  • Phys.Rev.D 95 (2017) 3, 032003
  • Published: Feb 13, 2017
e-Print:
Experiments:

Citations per year

2016201820202022202402468
Abstract: (APS)
The exclusive charmonium production process in p¯p annihilation with an associated π0 meson p¯p→J/ψπ0 is studied in the framework of QCD collinear factorization. The feasibility of measuring this reaction through the J/ψ→e+e- decay channel with the AntiProton ANnihilation at DArmstadt (P¯ANDA) experiment is investigated. Simulations on signal reconstruction efficiency as well as the background rejection from various sources including the p¯p→π+π-π0 and p¯p→J/ψπ0π0 reactions are performed with PandaRoot, the simulation and analysis software framework of the P¯ANDA experiment. It is shown that the measurement can be done at P¯ANDA with significant constraining power under the assumption of an integrated luminosity attainable in four to five months of data taking at the maximum design luminosity.
Note:
  • 25 pages, 22 figures
  • 14.20.Dh
  • 13.40.-f
  • 13.60.Le
  • 13.75.Cs
  • factorization: collinear
  • charmonium: production
  • PANDA
  • quantum chromodynamics
  • annihilation
  • programming