Exotic hybrid mesons and four-quark states

Claude Bernard, Thomas A. DeGrand, Carleton DeTar, Steven Gottlieb, Urs M. Heller, Jim Hetrick, Craig McNeile, Kari Rummukainen, Bob Sugar, William D Toussaint, Matthew Wingate

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We calculate masses of mesons with exotic quantum numbers in the quenched approximation. Using a four quark source operator, we demonstrate mixing of the 1-+ meson with four-quark states. Using the conventional Wilson quark action, we calculate both at reasonably light quark masses, intending to extrapolate to small quark mass, and near the charmed quark mass, where we calculate the masses of some c̄cg hybrid mesons. The hybrid masses are large - over 4 GeV for charmonium and more than twice the vector meson mass at the strange quark mass.

Original languageEnglish (US)
Pages (from-to)206-208
Number of pages3
JournalNuclear Physics B (Proceedings Supplements)
Volume63
Issue number1-3
StatePublished - Apr 1998

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mesons
quarks
vector mesons
quantum numbers
operators
approximation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Bernard, C., DeGrand, T. A., DeTar, C., Gottlieb, S., Heller, U. M., Hetrick, J., ... Wingate, M. (1998). Exotic hybrid mesons and four-quark states. Nuclear Physics B (Proceedings Supplements), 63(1-3), 206-208.

Exotic hybrid mesons and four-quark states. / Bernard, Claude; DeGrand, Thomas A.; DeTar, Carleton; Gottlieb, Steven; Heller, Urs M.; Hetrick, Jim; McNeile, Craig; Rummukainen, Kari; Sugar, Bob; Toussaint, William D; Wingate, Matthew.

In: Nuclear Physics B (Proceedings Supplements), Vol. 63, No. 1-3, 04.1998, p. 206-208.

Research output: Contribution to journalArticle

Bernard, C, DeGrand, TA, DeTar, C, Gottlieb, S, Heller, UM, Hetrick, J, McNeile, C, Rummukainen, K, Sugar, B, Toussaint, WD & Wingate, M 1998, 'Exotic hybrid mesons and four-quark states', Nuclear Physics B (Proceedings Supplements), vol. 63, no. 1-3, pp. 206-208.
Bernard C, DeGrand TA, DeTar C, Gottlieb S, Heller UM, Hetrick J et al. Exotic hybrid mesons and four-quark states. Nuclear Physics B (Proceedings Supplements). 1998 Apr;63(1-3):206-208.
Bernard, Claude ; DeGrand, Thomas A. ; DeTar, Carleton ; Gottlieb, Steven ; Heller, Urs M. ; Hetrick, Jim ; McNeile, Craig ; Rummukainen, Kari ; Sugar, Bob ; Toussaint, William D ; Wingate, Matthew. / Exotic hybrid mesons and four-quark states. In: Nuclear Physics B (Proceedings Supplements). 1998 ; Vol. 63, No. 1-3. pp. 206-208.
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