Recent ARGUS results on charmed baryon physics

Selected Results on the Transition From Short to Long Distance Physics at Hera

“…Many other results on non-perturbative phenomena are available from HERA and could not be covered in this talk, like search for instantons, search for odderons [4], data on the photon structure, fragmentation, pion exchange and more.…”

First evidence of

“…Recently, the ARGUS collaboration has found further evidence [3] for this same mode with 12.2 i 4.5 events with a mass of 2719.0 Z!Z 7.0 f 2.5 MeV/c'. ARGUS has also shown evidence for Cl; -fl-r-x+x+ at the same mass [4].…”

OBSERVATION OF THE $\Omega^0_c$ CHARMED BARYON AT CLEO

“…The WA62 experiment [1], claimed the first evidence of Ω 0 c in the Ξ − K − π + π + decay mode with a mass of 2746.0 ± 20.0 MeV/c 2 . The ARGUS Collaboration [2], published a Ω 0 c signal in the Ξ − K − π + π + mode, with a mass of 2719.0 ± 7.0 ± 2.5 MeV/c 2 and σ · Br of 2.41 ± 0.90 ± 0.30 pb using 0.380 f b −1 of integrated luminosity. The result was contradicted by CLEO (using 1.8f b −1 ) in an unpublished conference paper [3].…”