A note on Charmed and Bottomed Pentaquark Production by Fragmentation

Details A note on Charmed and Bottomed Pentaquark Production by Fragmentation A note on Charmed and Bottomed Pentaquark Production by Fragmentation

2004-05-28

arxiv.org/abs/hep-ph/0405281v2

Phys.Lett.B595:283-287,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

RevTex, 4 pages, no figures, references added

Scientific paper

10.1016/j.physletb.2004.06.072

H1 Collaboration recently observed the charmed pentaquark. In this short note, we point out that the dominant production mechanism for pentaquark consisting of a heavy quark is heavy quark fragmentation. We obtain a crude estimate on the fragmentation probability for charm quark into Theta_c^0, based on the known fragmentation probabilities of charm quark into mesons and baryons: f(c-bar --> Theta_c^0) =~ (2-7) x 10^{-3}. Similarly, we also obtain the fragmentation probability for bottom quark into Theta_b^+: f(b-bar --> Theta_b^+) =~ (5-20) x 10^{-3}. We also estimate the prospect of observing Theta_c^0 and Theta_b^+ at HERA, LEP, and Tevatron.

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