TheΛ c + production by 40–70 GeV neutrons on carbon

Autor: V.V. Palchik, Y. Soloviev, A. N. Maksimov, P.N. Shareiko, I.M. Geshkov, R. K. Trayanov, S. Nowak, A. Prokes, V. V. Pavlovskaya, B.A. Kulakov, M. V. Zavertyaev, L. V. Sil'vestrov, D. T. Burilkov, A. M. Fomenko, H. E. Ryseck, I.N. Kakurin, Petr Moisenz, M. V. Tosheva, V.E. Simonov, N. V. Vlasov, E. A. Chudakov, A. V. Pose, E. D. Molodtsov, G. G. Takhtamyshev, I. M. Ivanchenko, L. N. Shtarkov, V. Arefiev, B.N. Gus'kov, A.L. Lyubimov, S. Nemecek, G.I. Nikobadze, P. T. Todorov, A. S. Chvyrov, D. A. Kirillov, E. G. Devitsin, V. R. Krastev, L. A. Slepets, A. N. Aleev, M. N. Kapishin, I. I. Evsikov, N.L. Lomidze, V. P. Balandin, K. Hiller, V. Genchev, A.S. Belousov, T.S. Grigalashvili, Sergey Rusakov, P. K. Markov, V. K. Berdyshev, Nguyen Mong Zao, M. F. Likhachev, Adel Terkulov, N.A. Kuzmin, M. Novak, G. G. Sultanov, H. Nowak, V. D. Cholakov, N.N. Karpenko, I. Hladky, E. I. Malinovsky, Rezo Shanidze, N.S. Amaglobeli, V. P. Dzhordzhadze, M. N. Voichishin, V. A. Kozlov, V.K. Birulev, V. D. Kekelidze, I. G. Kosarev, A. N. Morozov, Y. Vazdik, V. J. Zayachky
Rok vydání: 1984
Předmět:
Zdroj: Zeitschrift für Physik C Particles and Fields. 23:333-338
ISSN: 1434-6052
0170-9739
Popis: The inclusive production of charmed baryonsΛ c + by 40–70 GeV neutrons on carbon has been observed. The decays $$\Lambda _c^ + \to \bar K^0 p\pi ^ + \pi ^ -$$ (130 ± 18 events) andΛ + →Λ 0π+π+π− (57±14 events) have been detected. The mean value ofΛ + mass is (2,268±6) MeV/c2. The invariant cross section forX>0.5 is described byE·d 3σ/dp 3∝ exp(−)bP T ·(1−X) n withb=(2.5±0.6) (GeV/c)−1 andn=(1.5±0.5). The cross section of theΛ + inclusive production measured forX>0.5 times the branching ratios are $$\sigma \cdot B(\bar K^0 p\pi ^ + \pi ^ - ) = (10 \pm 4)$$ μb per carbon nucleus and σ·B(Λ 0 π + π + π −)=(2.3±1.1) μb per carbon nucleus. The experiment has been performed in the neutron beam of the Serpukhov accelerator using the spectrometer BIS-2.
Databáze: OpenAIRE
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