Neutral strange particle production inK+p interactions at 32 GeV/c
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Abstract
The production properties ofK s 0 ,\(\bar \Lambda\) andK+p interactions at 32 GeV/c are investigated using the final statistics of the experiment. We present total and semi-inclusive cross sections and aver-age multiplicities. Estimates are given of the diffractive dissociation contributions to total and differential cross sections. Thex-,p T −, and transverse mass dependence of inclusive and semi-inclusive distributions is discussed as well as properties of “prompt”K s 0 's. The ratio of “prompt”K 890 + (K 890 0 ) to “prompt”K0 cross sections is measured to be 1.03±0.12 (0.98±0.17). From a comparison of\(\bar \Lambda\) production inK±p interactions at 32 GeV/c, we estimate a strange sea-quark suppression of 0.26 ±0.02. The double differential cross sections ofK s 0 's is studied as a function of Feynman-x andp T 2 , and a Triple-Regge fit performed. The data are compared in detail to versions of the Lund-model for low-p T hadronic collisions.
Keywords
Elementary Particle Differential Cross Section Particle Acceleration Production Property Particle ProductionPreview
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References
- 1.P.V. Chliapnikov et al.: Nucl. Phys.B 131, 93 (1977)Google Scholar
- 2.P.V. Chliapnikov et al.: Nucl. Phys.B 133, 93 (1978)Google Scholar
- 3.R. Blokzijl et al.: Nucl. Phys.B 39, 141 (1972)Google Scholar
- 4.G. Giapetti et al.: Nucl. Phys.B 89, 365 (1975)Google Scholar
- 5.D. Cohen, T. Ferbel, P. Slattery, S. Stone: Univ. of Rochester Preprint UR-421 (1974)Google Scholar
- 6.S.L. Stone: Phys. Lett.32 B, 515 (1970)Google Scholar
- 7.P.V. Chliapnikov et al.: Nucl. Phys.B 112, 1 (1976)Google Scholar
- 8.S. Stone, T. Ferbel, P. Slattery, B. Werner: Phys. Rev.D 5, 1621 (1972); S. Stone: Ph.D. Thesis Univ. of Rochester Report UR-388 (1972)Google Scholar
- 9.M. Barth et al.: Nucl. Phys.B 191, 39 (1981)Google Scholar
- 10.M. Barth et al.: Z. Physik C-Particles and Fields10, 205 (1981)Google Scholar
- 11.D. Brick et al.: Nucl. Phys.B 164, 1 (1980)Google Scholar
- 12.Particle Data Group tables; M. Aguilar-Benitez et al.: Phys. Lett.111 B, 1 (1982)Google Scholar
- 13.V.A. Uvarov: A study of neutral strange particle production in a 32 GeV/cK + p experiment in Mirabelle, Ph.D. Thesis, Serpukhov (1981) (unpublished)Google Scholar
- 14.I.V. Ajinenko et al.: Z. Phys. C-Particles and Fields4, 181 (1980)Google Scholar
- 15.S.P. Denisov et al.: Phys. Lett.36 B, 415 (1971)Google Scholar
- 16.V.V. Anisovich, N.N. Kobrinsky, J. Nyiri: Yad. Fiz.34, 195 (1981)Google Scholar
- 17.M. Barth et al.: Nucl. Phys. B223, 296 (1983)Google Scholar
- 18.U. Gensch et al.: Z. Phys. C-Particles and Fields2, 7 (1979); Nucl. Phys.B 173, 154 (1980)Google Scholar
- 19.Y.I. Arestov et al.: Z. Phys. C-Particles and Fields7, 97 (1981)Google Scholar
- 20.V. V. Ammosov et al.: Phys. Lett.93 B, 210 (1980)Google Scholar
- 21.J. Saudraix et al.: Z. Phys. C-Particles and Fields5, 105 (1980)Google Scholar
- 22.A. Givernaud et al.: Z. Phys. C-Particles and Fields8, 291 (1981)Google Scholar
- 23.J. Gunion: Phys. Lett.88 B, 150 (1979)Google Scholar
- 24.P.V. Chliapnikov et al.: Nucl. Phys.B 176, 303 (1980)Google Scholar
- 25.P.V. Chliapnikov et al.: Nucl. Phys.B 148, 400 (1979)Google Scholar
- 26.P.V. Chliapnikov, O. Czyzewski, J. Finkelstein, M. Jacob: Phys. Lett.35 B, 581 (1971)Google Scholar
- 27.A. Vayaki et al.: Nucl. Phys.B 58, 178 (1973); K. Paler et al.: Phys. Lett.43 B, 437 (1973)Google Scholar
- 28.P.M. Yager et al.: Phys. Rev. Lett.46, 1358 (1981)Google Scholar
- 29.I.V. Ajinenko et al.: Z. Phys. C-Particles and Fields5, 177 (1980)Google Scholar
- 30.D. Fournier: Proc. 1981 Int. Symp. on Lepton and Photon Interactions at High Energies, Bonn 1981Google Scholar
- 31.B. Andersson et al.: Nucl. Phys.B 178, 242 (1981); and Proceedings of XII-th Int. Symp. on Multiparticle Dynamics, Notre Dame (1981). Singapore: World ScientificGoogle Scholar
- 32.E.A. De Wolf: Proceedings of XIII th Int. Symp. on Multiparticle Dynamics, Volendam (1982). Singapore: World Scientific 1982; ibid. Fragmentation model predictions for the reactionpp→ph ± X; Brussels preprint IIHE 83-001; ibid. Testing the held-back effect in soft hadron collisions?, Brussels preprint IIHE 83-002 (1983)Google Scholar
- 33.T. Sjöstrand: Comp. Phys. Comm.27, 243 (1982)Google Scholar
- 34.For a review see A. Capella: Partons in soft hadronic processes. Proc. Europhysics Study Conf., Erice, Italy (1981). Singapore: World Scientific 1981Google Scholar