Evidence of New States Decaying into [Xi][sup asterisk] [sub c][pi]

Using data recorded by the CLEO II detector at the Cornell Electron Storage Ring, we report evidence for two new charmed baryons, one decaying into [Xi][sup +][sub c][pi][sup +][pi][sup [minus]] via an intermediate [Xi][sup *0][sub c] and its isospin partner decaying into [Xi][sup 0][sub c][pi][sup...

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Bibliographic Details
Published in:	Physical review letters Vol. 83:17
Main Authors:	Alexander, J.P., Baker, R., Bebek, C., Berger, B.E., Berkelman, K., Boisvert, V., Cassel, D.G., Crowcroft, D.S., Dickson, M., von Dombrowski, S., Drell, P.S., Ecklund, K.M., Ehrlich, R., Foland, A.D., Gaidarev, P., Gibbons, L., Gittelman, B., Gray, S.W., Hartill, D.L., Heltsley, B.K., Hopman, P.I., Kreinick, D.L., Lee, T., Liu, Y., Meyer, T.O., Mistry, N.B., Ng, C.R., Nordberg, E., Ogg, M., Patterson, J.R., Peterson, D., Riley, D., Thayer, J.G., Thies, P.G., Valant-Spaight, B., Warburton, A., Ward, C., Athanas, M., Avery, P., Jones, C.D., Lohner, M., Prescott, C., Rubiera, A.I., Yelton, J., Zheng, J., Brandenburg, G., Briere, R.A., Ershov, A., Gao, Y.S., Kim, D.Y., Wilson, R., Browder, T.E., Li, Y., Rodriguez, J.L., Yamamoto, H.
Format:	Journal Article
Language:	English
Published:	United States 01-10-1999
Subjects:	BARYONS BOSONS CESR STORAGE RING CHARM PARTICLES DECAY ELEMENTARY PARTICLES FERMIONS HADRONS HYPERONS MASS MESONS PARTICLE DECAY PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PIONS PIONS MINUS PIONS PLUS PSEUDOSCALAR MESONS SIGMA BARYONS SIGMA NEUTRAL PARTICLES SIGMA PARTICLES SIGMA PLUS PARTICLES STORAGE RINGS 662360 > Decays of Baryons > (1992-) STRANGE PARTICLES
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Summary:	Using data recorded by the CLEO II detector at the Cornell Electron Storage Ring, we report evidence for two new charmed baryons, one decaying into [Xi][sup +][sub c][pi][sup +][pi][sup [minus]] via an intermediate [Xi][sup 0][sub c] and its isospin partner decaying into [Xi][sup 0][sub c][pi][sup +][pi][sup [minus]] via an intermediate [Xi][sup +][sub c] . We measure the mass differences of the two states to be M([Xi][sup +][sub c][pi][sup +][pi][sup [minus]])[minus]M([Xi][sup +][sub c]) =348.6[plus minus]0.6[plus minus]1.0 thinspthinspMeV, and M([Xi][sup 0][sub c][pi][sup +][pi][sup [minus]])[minus]M([Xi][sup 0][sub c]) =347.2[plus minus]0.7[plus minus]2.0 thinspthinspMeV. We interpret these new states as the J[sup P]= ( 3) /(2) [sup [minus] ] [Xi][sub c1] particles, the charmed-strange analogs of the [Lambda][sup +][sub c1](2625) . [copyright] [ital 1999] [ital The American Physical Society ]
Bibliography:	None
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.83.3390