@article{2757907b8e95432ea00b7c575496b288,
title = "Observation of two narrow states decaying into Ξ+ cγ and Ξ0 cγ",
abstract = "We report the first observation of two narrow charmed strange baryons decaying to Ξ+ cγ and Ξ0 Cγ, respectively, using data from the CLEO II detector at the Cornell Electron Storage Ring. We interpret the observed signals as the Ξ+′ c(c(u)) and Ξ0′ cγ(c(sd)), the symmetric partners of the well-established antisymmetric Ξ+ c(c[su]) and Ξ0 c(c[sd]). The mass differences M(Ξ+′ c)-M(Ξ+ c) and M(Ξ0′ c)-M(Ξ0 c) have been measured to be 107.8±1.7±2.5 and 107.0±1.4±2.5MeV/c2, respectively.",
author = "{CLEO Collaboration} and Jessop, {C. P.} and K. Lingel and H. Marsiske and Perl, {M. L.} and V. Savinov and D. Ugolini and X. Zhou and Coan, {T. E.} and V. Fadeyev and I. Korolkov and Y. Maravin and I. Narsky and R. Stroynowski and J. Ye and T. Wlodek and M. Artuso and E. Dambasuren and S. Kopp and Moneti, {G. C.} and R. Mountain and S. Schuh and T. Skwarnicki and S. Stone and A. Titov and G. Viehhauser and Wang, {J. C.} and Csorna, {S. E.} and {Mc Lean}, {K. W.} and S. Marka and Z. Xu and R. Godang and K. Kinoshita and Lai, {I. C.} and P. Pomianowski and S. Schrenk and G. Bonvicini and D. Cinabro and R. Greene and Perera, {L. P.} and Zhou, {G. J.} and S. Chan and G. Eigen and E. Lipeles and Miller, {J. S.} and M. Schmidtler and A. Shapiro and Sun, {W. M.} and J. Urheim and Weinstein, {A. J.} and Lange, {D. J.}",
year = "1999",
doi = "10.1103/PhysRevLett.82.492",
language = "English (US)",
volume = "82",
pages = "492--496",
journal = "Physical review letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "3",
}