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Inclusive ? and $$\bar \Lambda$$ Production inK + p interactions at 70 GeV/c
Author(s) -
M. Barth,
C. De Clercq,
E. A. De Wolf,
J. J. Dumont,
Denis Johnson,
J. Lemonne,
P. Peeters,
H. Drevermann,
Y. Goldschmidt-Clermont,
G. Harigel,
C. Milsténe,
J.-P. Porte,
R.T. Ross,
M. Spyropoulou-Stassinaki,
S. Squarcia,
P. Theocharopoulos,
G. Vassiliadis,
C. Caso,
R. Contri,
F. Fontanelli,
R. Monge,
U. Trevisan,
J. F. Baland,
J. Beaufays,
J. Hanton,
F. Grard,
P. A. Poel,
L. Gatig,
W. Kittel,
W.J. Metzger,
D.J. Schotanus,
Andreas Stergiou,
R. T. Walle,
Y. A. Belokopitov,
P. Chliapnikov,
A. B. Fenyuk,
L. Gerdyukov,
I.A. Gritsaenko,
G.N. Khromova,
V.M. Kubic,
S. B. Lugovsky,
V. Nikolaenko,
Y. Petrovykh,
V. M. Ronjin,
A.P. Vorobjev,
V.A. Yarba
Publication year - 1981
Publication title -
zeitschrift für physik c
Language(s) - English
Resource type - Journals
eISSN - 1431-5858
pISSN - 0170-9739
DOI - 10.1007/bf01549728
Subject(s) - lambda , physics , bar (unit) , nuclear physics , production (economics) , particle physics , proton , fragmentation (computing) , polarization (electrochemistry) , scaling , optics , geometry , chemistry , macroeconomics , operating system , mathematics , meteorology , computer science , economics
Inclusive and semi-inclusive production of Λ and {Mathematical expression} in K+p interactions is studied at an incident momentum of 70 GeV/c. Cross sections and single particle distributions are presented and compared with data at lower energies. Scaling is observed between 32 and 70 GeV/c in the Feynman x variable in the target and the beam fragmentation regions for Λ and {Mathematical expression} inclusive production respectively. An increase of Λ ( {Mathematical expression}) production is observed in the beam (target) fragmentation regions, whereas the data at 70 and 32 GeV/c are reasonably close in the central region. The dependence of the Λ( {Mathematical expression}) polarization as a function of x is measured and found to be in general agreement with the results at 32 GeV/c. The (Λ {Mathematical expression}) pair production cross section increases significantly from 32 to 70 GeV/c. The Λ and {Mathematical expression} production associated with an identified proton is also studied. © 1981 Springer-Verlag.0SCOPUS: ar.jinfo:eu-repo/semantics/publishe

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