Measurement of inclusiveB meson decays into baryons

Autor: Albrecht, H., Böckmann, P., Gläser, R., Harder, G., Krüger, A., Nippe, A., Reidenbach, M., Schäfer, M., Schmidt-Parzefall, W., Schröder, H., Schulz, H. D., Sefkow, F., Spengler, J., Wurth, R., Yagil, A., Appuhn, R. D., Drescher, A., Hast, C., Kamp, D., Kolanoski, H., Lindner, A., Mankel, R., Matthiesen, U., Scheck, H., Schweda, G., Spaan, B., Walther, A., Wegener, D., Funk, W., Gabriel, J. C., Stiewe, J., Werner, S., Edwards, K. W., Frisken, W. R., Kapitzka, H., Kutschke, R., MacFarlane, D. B., McLean, K. W., Nilsson, A. W., Orr, R. S., Parsons, J. A., Patel, P. M., Prentice, J. D., Seidel, S. C., Swain, J. D., Tsipolitis, G., Yoon, T. -S., Ammar, R., Ball, S., Coppage, D., Davis, R., Kanekal, S., Kwak, N., Ruf, T., Schael, S., Schubert, K. R., Strahl, K., Waldi, R., Boštjančič, B., Kernel, G., Križan, P., Križnič, E., Pleško, M., Cronström, H. I., Jönsson, L., Babaev, A., Danilov, M., Fominykh, B., Golutvin, A., Gorelov, I., Lubimov, V., Rostovtsev, A., Semenov, A., Semenov, S., Shevchenko, V., Soloshenko, V., Tchistilin, V., Tichomirov, I., Zaitsev, Yu., Childers, R., Darden, C. W., Fernholz, R. C.
Zdroj: Zeitschrift für Physik C Particles and Fields; December 1989, Vol. 42 Issue: 4 p519-525, 7p
Abstrakt: The decay ofB mesons into the baryonsp, ? and?- has been studied. The measured inclusive branching ratios for these decays are Br(B?p X) =(8.2±0.5-1.0+1.3)%, Br(B??X)=(4.2±0.5±0.6)% and Br(B??-X)<0.51% at the 90% confidence level. In addition investigations onp $$\bar p$$ , and? $$\bar p$$ and? $$\bar \Lambda $$ correlations were performed, yielding an approximately equal rate of protons and neutrons. From this one can derive a total baryonic branching ratio Br(B?baryons) of (7.6±1.4)%.
Databáze: Supplemental Index
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