Inclusive J / $$\psi$$ Production at D0
- Indiana U.
We present results on inclusive $$J/\psi$$ and b-quark production in $$p\bar{p}$$ collisions at $$\sqrt{s}$$ = 1.8 TeV. The results are based on data collected at the D0 experiment during the 1992-1993 FermiLab collider run. There is excellent agreement between the differential $$J/\psi$$ cross section measured at D0 and that measured at the CDF detector. A measurement of the fraction of $$J/\psi$$ events due to b-quark decays is presented and we extract from this a measurement of the integrated b-quark cross section. The radiative decays of $$_{Xc}$$ charmonium states into the $$J/\psi$$ is discussed and we present results on the fraction of $$J/\psi$$ mesons that are due to $$_{Xc}$$ decays. We also observe that a fraction of promptly produced $$J/\psi$$ mesons is larger than the measured fraction of $$J/\psi$$ due to $$_{Xc}$$ decays and is not accounted for by existing charmonium. production models.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1423676
- Report Number(s):
- FERMILAB-THESIS-1995-24; UMI-95-31553; 404883
- Country of Publication:
- United States
- Language:
- English
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