Inclusive production of lambda in the proton fragmentation region from K-p→ΛX at 4.2 GeV/c

Ganguli, S. N. ; Hemingway, R. J. ; Holmgreen, S. O. ; Losty, M. J. ; Muirhead, H. ; Kittel, W. ; Pols, C. L. A. ; Shephard, W. D. ; Vergeest, J. S. ; Lamb, P. R. ; et., al (1978) Inclusive production of lambda in the proton fragmentation region from K-p→ΛX at 4.2 GeV/c Il Nuovo cimento. A(1971-1996), 44 (3). pp. 345-366. ISSN 0369-3546

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Official URL: http://www.springerlink.com/content/lr564324jh0336...

Related URL: http://dx.doi.org/10.1007/BF02812977

Abstract

A study of Λ production has been made for the process p→K-Λ from K-p interactions at 4.2 GeV/c. The total Λ production cross-section is (4.5±0.2) mb and the cross-section in which Λ is associated with KK- in the final state is found to be (0.44±0.03) mb. A study of the polarization is made for the off-mass-shell strangeness annihilations <<KK->>→pions and strangeness nonannihilations <<KK->>→+KK-pions; the polarization, when plotted as a function of x,p T and (recoiling mass)2, exhibits differences between the two processes. The polarization observed in the strangeness nonannihilation process shows identical behaviour to that in pp- reactions. An attempt has been made to understand the behaviour of the polarized and the unpolarized cross-sections as a function of (recoiling mass)2 in the triple-Regge framework.

Item Type:Article
Source:Copyright of this article belongs to Springer-Verlag.
ID Code:14944
Deposited On:13 Nov 2010 13:15
Last Modified:31 May 2011 09:45

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