Evidence for an Anti-charmed Baryon State

Christiane Risler

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arXiv · hep-ex/0506077

Evidence for an Anti-charmed Baryon State

Christiane Risler

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Abstract

We report on the observation of a narrow resonance in D^{*-}p and D^{*+} pbar invariant mass combinations in deep-inelastic ep scattering at centre-of-mass energies of 300 and 320 GeV at HERA. The mass of the resonance is measured to be 3099 +- 3 (stat.) +- 5 (syst.) MeV, the Gaussian width of 12 +- 3 (stat.) MeV is compatible with the experimental resolution. The state can be interpreted as an anti-charmed baryon with minimal constituent quark composition $uudd\bar c$, together with the charge conjugate.

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Christiane Risler. 2005-06-30. Evidence for an Anti-charmed Baryon State. https://arxiv.org/abs/hep-ex/0506077

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