Pentaquark Searches in H1

We report on searches in deep inelastic ep scattering for narrow baryonic states decaying into Ξ − π − , Ξ − π + , K 0 S p and their charge conjugates, at centre-of-mass energies of 300 and 318 GeV. No signal for a new narrow baryonic state is observed in the mass ranges 1600-2100 MeV (Ξπ) and from threshold up to 1700 MeV (K 0 S p). The standard baryon Ξ(1530) 0 is observed in the decay mode Ξ − π + , and mass dependent upper limits on the ratio of the hypothetical pentaquark states Ξ −− 5q and Ξ 0 5q to the Ξ(1530) 0 signal are given. Also for the hypothetical strange pentaquark Θ + mass dependent upper limits on σ(ep → eΘ + X) × BR(Θ + → K 0 p) are obtained. Finally measurements of the acceptance corrected ratios σ(D * p(3100))/σ(D *) for the electropro-duction of the anti-charmed baryon state D * p(3100) decaying into D * and p are presented.