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, Doug Toussaint, Matthew Wingate

Research output: Contribution to journalArticle

1 Scopus citations

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
DOIs
StatePublished - Apr 1998

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Exotic hybrid mesons and four-quark states'. Together they form a unique fingerprint.

  • Cite this

    Bernard, C., DeGrand, T. A., DeTar, C., Gottlieb, S., Heller, U. M., Hetrick, J., McNeile, C., Rummukainen, K., Sugar, B., Toussaint, D., & Wingate, M. (1998). Exotic hybrid mesons and four-quark states. Nuclear Physics B - Proceedings Supplements, 63(1-3), 206-208. https://doi.org/10.1016/S0920-5632(97)00723-8