Study of diquark fragmentation into ∧ and Y*+ in n and ∨ p interactions

C. C. Chang, W. A. Mann, A. Napier, J. Schneps, R. A. Burnstein, J. Hanlon, H. A. Rubin, C. Y. Chang, G. A. Snow, D. Son, P. H. Steinberg, D. Zieminska, R. Engelmann, T. Kafka, S. Sommars, T. Kitagaki, S. Tanaka, H. Yuta, K. Abe, K. HasegawaA. Yamaguchi, K. Tamai, T. Hayashino, S. Kunori, Y. Ohtani, H. Hayano

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11 Scopus citations


We apply a new method to determine the probability of the uu diquark from p interactions fragmenting as independent quarks. In particular, by assuming that all 's which do not come from Y*+, N*+, or charmed baryons must come from independent fragmentation, we show this probability to be about 50%. We also provide information from n interactions on the fragmentation of ud diquarks into 's, and from this determine the probability of capturing a strange quark from the sea in the target region to be s=0.0510.013, about half the value found in the current region, s=0.120.02. Overall production rates in n and p reactions are (7.0 0.8)% and (7.0 1.2)%, respectively, when cuts of W>4 GeV and xB>0.2 are made on the data.

Original languageEnglish
Pages (from-to)2776-2779
Number of pages4
JournalPhysical Review D
Issue number11
StatePublished - 1983


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