Manke, T , Khan, A A , Aoki, S , Burkhalter, R , Ejiri, S , Fukugita, M , Hashimoto, S , Ishizuka, N , Iwasaki, Y , Kanaya, K , Kaneko, T , Kuramashi, Y , Nagai, K , Okawa, M , Shanahan, H P , Ukawa, A and Yoshie, T (2000) Sea quark effects on quarkonia. Physical Review D , 6211 (11).
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We study the effects of two dynamical sea quarks on the spectrum of heavy quarkonia. Within the non-relativistic approach to lattice QCD we find sizable changes to the hyperfine splitting, but we do not observe any changes for the fine structure. We also investigate the scaling behavior of our results for several different lattice spacings.
This is a Submitted version This version's date is: 1/12/2000 This item is not peer reviewed
https://repository.royalholloway.ac.uk/items/6aeced27-065a-a026-102c-aab1780111b2/4/
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