Abstract
Inclusive Λ production in\(\bar p\) p interactions at 3.0, 3.5, 4.0 and 4.5 GeV/c is studied. The inclusive cross sections for Λ and Λ\(\bar \Lambda \) production are measured. The differential cross sections as functions ofx, y, andP 2 T are given for each beam momentum. It is found that the contribution of indirect production of Λ from resonance decay is considerably enhanced in the region of higher missing mass against Λ. The negative polarization is observed for Λ with largerP T and lower missing mass, and is found to be mainly from two body reactions. Inclusive cross sections for∑ ±(1385) production and the fraction of indirect Λ from∑ ±(1385) decay are measured. The ratio between the cross sections for∑ +(1385) and∑ −(1385) productions is found to be almost constant for wide range of beam momenta.
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S. Banerjee, S.N. Ganguli, P.K., Malhotra, R. Raughavan: Nucl. Phys.B150, 119 (1979)
S.N. Ganguli, B. Sadoulet: Nucl. Phys.B53, 458 (1973)
M.T. Regan et al.: Nucl. Phys.B141, 65 (1978)
G.D. Patel et al.: Z. Phys. C— Particles and Fields12, 189 (1982)
C.N. Booth et al.: Phys. Rev.D27, 2018 (1983)
D. Bertrand et al.: Nucl. Phys.B128, 365 (1977)
P. Johnson et al.: Nucl. Phys.B173, 77 (1980)
F.T. Dao, J. Lach, J. Whitmore: Phys. Lett.51B, 505 (1974)
M.A. Jabiol et al.: Nucl. Phys.B127, 365 (1977)
C. Poiret et al.: Z. Phys. C—Particles and Fields11, 1 (1981)
R. Raja et al.: Phys. Rev.D15, 627 (1977)
D.R. Ward et al.: Phys. Lett.62B, 273 (1976)
S. Banerjee et al.: Z. Phys. C—Particles and Fields3, 1 (1979)
B.M. Whyman et al.: Z. Phys. C—Particles and Fields12, 203 (1982)
J.F. Baland et al.: Nucl. Phys.B140, 220 (1978)
J. Canter et al.: Phys. Rev.D20, 1029 (1979)
V. Karimaki et al.: Z. Phys. C—Particles and Fields10, 189 (1981)
J.F. Baland et al.: Z. Phys. C—Particles and Fields3, 187 (1980)
F. Ochiai et al.: To be published
P. Schmid: Proceeding of the XVIII International Conference on High Energy Physics, Tbilisi, Vol.I, A2–9 (1976)
L. Caneschi, A. Pignotti: Phys. Rev. Lett.22, 1219 (1969)
D. Silverman, C.Y. Tan: Phys. Rev.D2, 233 (1970)
C.E. DeTar et al.: Phys. Rev. Lett.26, 675 (1971)
Particle Data Group. Phys. Lett.111B, 1 (1982)
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Noguchi, S., Fujiwara, N., Chikawa, M. et al. Inclusive Λ production in\(\bar p\) p interactions at 3.0, 3.5, 4.0 and 4.5 GeV/c. Z. Phys. C - Particles and Fields 24, 297–304 (1984). https://doi.org/10.1007/BF01410368
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DOI: https://doi.org/10.1007/BF01410368