Study of the Decays Λc+ -> Ξ0K+, Λc+ -> summation + K+ K-, and Λc+ -> Ξ- K+ π+

被引：0
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作者：
Avery, P.
Freyberger, A.
Rodriguez, J.
Stephens, R.
Yelton, J.
Cinabro, D.
Henderson, S.
Kinoshita, K.
Liu, T.
Saulnier, M.
Wilson, R.
Yamamoto, H.
Ong, B.
Selen, M.
Sadoff, A.J.
Ammar, R.
Ball, S.
Baringer, P.
Coppage, D.
Copty, N.
Davis, R.
Hancock, N.
Kelly, M.
Kwak, N.
Lam, H.
Kubota, Y.
Lattery, M.
Nelson, J.K.
Patton, S.
Perticone, D.
Poling, R.
Savinov, V.
Schrenk, S.
Wang, R.
Alam, M.S.
Kim, I.J.
Nemati, B.
O'Neill, J.J.
Romero, V.
Severini, H.
Sun, C.R.
Zoeller, M.M.
Crawford, G.
Daubenmier, C.M.
Fulton, R.
Fujino, D.
Gan, K.K.
Honscheid, K.
Kagan, H.
Kass, R.
机构：
[1] University of Florida, Gainesville, FL 32611, United States
[2] Harvard University, Cambridge, MA 02138, United States
[3] University of Illinois, Urbana, IL 61801, United States
[4] Ithaca College, Ithaca, NY 14850, United States
[5] University of Kansas, Lawrence, KS 66045, United States
[6] University of Minnesota, Minneapolis, MN 55455, United States
[7] State University of New York at Albany, Albany, NY 12222, United States
[8] Ohio State University, Columbus, OH 43210, United States
[9] University of Oklahoma, Norman, OK 73019, United States
[10] Purdue University, West Lafayette, IN 47907, United States
[11] University of Rochester, Rochester, NY 14627, United States
[12] Southern Methodist University, Dallas, TX 75275, United States
[13] Syracuse University, Syracuse, NY 13244, United States
[14] Vanderbilt University, Nashville, TN 37235, United States
[15] California Institute of Technology, Pasadena, CA 91125, United States
[16] University of California, San Diego, CA 92093, United States
[17] University of California, Santa Barbara, CA 93106, United States
[18] Carnegie-Mellon University, Pittsburgh, PA 15213, United States
[19] University of Colorado, Boulder, CO 80309-0390, United States
[20] Cornell University, Ithaca, NY 14853, United States
来源：
Physical Review Letters | 1993年 / 71卷 / 15期
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摘要：
We report the measurement of new modes of the charmed baryon Λc+ using data recorded by the CLEO II detector at the Cornell Electron Storage Ring. We find branching ratios, relative to Λc+ -> pK - π+, of 0.070 ± 0.011 ± 0.011 for Λc+ -> summation + K+K-, 0.069 ± 0.023 ± 0.016 for Λc+ -> summation φ, 0.078 ± 0.013 ± 0.013 for Λc+ -> Ξ0K+, and 0.053 ± 0.016 ± 0.010 for Λc+ -> Ξ*0K+. These measurements indicate that W-exchange diagrams contribute to Λc+ decay. We have also made a new measurement of the previously found mode Λc+ -> Ξ- K+ π+.
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页码：2391 / 2395
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