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Tetraquarks composed of 4 heavy quarks

Authors
  • Berezhnoy, A. V.
  • Luchinsky, A. V.
  • Novoselov, A. A.
Type
Preprint
Publication Date
Nov 22, 2011
Submission Date
Nov 08, 2011
Identifiers
DOI: 10.1103/PhysRevD.86.034004
Source
arXiv
License
Yellow
External links

Abstract

In the current work spectroscopy and possibility of observation at the LHC of tetraquarks composed of 4 heavy quarks is discussed. Tetraquarks concerned are T_{4c}=[cc][cc]$, T_{4b}=[bb][bb] and T_{2[bc]}=[bc][bc]. By solving nonrelativistic Schroedinger equation masses of these states are found with the hyperfine splitting accounted for. It is shown that masses of tensor tetraquarks T_{4c}(2++) and T_{2[bc]}(2++) are high enough to observe these states as peaks in the invariant mass distributions of heavy quarkonia pairs in pp -> T_{4c}+X -> 2J/\psi+X, pp -> T_{2[bc]}+X -> 2B_{c}+X and pp -> T_{2[bc]}+X -> J/\psi\Upsilon(1S)+X channels while T_{4b} is under the threshold of decay into a vector bottomonia pair.

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