Search for Two Omega Meson Decays of Charmonium Resonances Produced in Proton - Antiproton Annihilations

Thesis/Dissertation · Tue Jan 01 04:00:00 EST 2002

DOI:https://doi.org/10.2172/1420964· OSTI ID:1420964

Kasper, Jason J. ^[1]

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1. Northwestern U.

In Fermilab experiment E835 a search has been performed for two w(782) vector meson decays of charmonium produced via $$p\bar{p}$$ annihilation. All states with even charge conjugation quantum number are theoretically accessible via $ww$. No charmonium signals were clearly visible. The large nonresonant continuum from fjp annihilation to ww was observed to be predominantly pseudoscalar. 903 upper limit confidence intervals were calculated for $$B(\eta_c \to $$ww$$)$$ assuming various phase shifts, $$\delta$$, between the resonant and nonresonant $ww$ production giving a range from 0.543 for $$\delta$$ = 180° to 18% for $$\delta$$ = 0°. Upper limits on $$B(\bar{p}p \to \eta^{\prime}_c$$) x $$B(\eta^{\prime}_c \to ww$$) are also given over a range of assumed masses and widths for the $$\eta^{\prime}_c$$.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1420964
• Report Number(s): FERMILAB-THESIS-2002-02; UMI-30-50543; 588246
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS