Production of four-quark states with double heavy quarks at LHC

Details Production of four-quark states with double heavy quarks at LHC Production of four-quark states with double heavy quarks at LHC

2011-01-24

arxiv.org/abs/1101.4568v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages,8 figures

Scientific paper

We study the hadronic production of four-quark states with double heavy quarks and double light antiquarks at LHC. The production mechanism is that a color anti-triplet diquark cluster consisting of double heavy quarks is formed first from the produced double heavy quark-antiquark pairs via $gg$ fusion hard process, followed by the fragmentation of the diquark cluster into a four-quark (tetraquark) state. Predictions for the production cross sections and their differential distributions are presented. Our results show that it is quite promising to discover these tetraquark states in LHC experiments both for large number events and for their unique signatures in detectors.

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