Inclusive photoproduction of strange baryons at 20 GeV
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Inclusive photoproduction of strange baryons at 20 GeV

K. Abe,R. Armenteros,T. C. Bacon,J. Ballam,H. H. Bingham,J. E. Brau,K. Braune,D. Brick,W. M. Bugg,J. M. Butler,W. Cameron,H. O. Cohn,D. C. Colley,S. Dado,R. Diamond,P. Dingus,R. Erickson,R. C. Field,B. Franek,N. Fujiwara,T. Glanzman,I. M. Godfrey,J. J. Goldberg,A. T. Goshaw,G. Hall,E. R. Hancock,T. Handler,H. J. Hargis,E. L. Hart,M. J. Harwin,K. Hasegawa,R. I. Hulsizer,M. Jobes,T. Kafka,G. E. Kalmus,D. P. Kelsey,T. Kitagaki,A. Levy,P. W. Lucas,W. A. Mann,R. Merenyi,R. Milburn,C. Milstene,K. C. Moffeit,A. Napier,S. Noguchi,F. Ochiai,S. O’Neale,A. P. T. Palounek,I. A. Pless,P. Rankin,W. J. Robertson,H. Sagawa,T. Sato,J. Schneps,S. J. Sewell,J. Shank,A. M. Shapiro,R. Sugahara,A. Suzuki,K. Takahashi,K. Tamai,S. Tanaka,S. Tether,D. A. Waide,W. D. Walker,M. Widgoff,C. G. Wilkins,S. Wolbers,A. Yamaguchi,R. K. Yamamoto,S. Yamashita,Y. Yoshimura,G. P. Yost,H. Yuta;K. Abe;R. Armenteros;T. C. Bacon;J. Ballam;H. H. Bingham;J. E. Brau;K. Braune;D. Brick;W. M. Bugg;J. M. Butler;W. Cameron;H. O. Cohn;D. C. Colley;S. Dado;R. Diamond;P. Dingus;R. Erickson;R. C. Field;B. Franek;N. Fujiwara;T. Glanzman;I. M. Godfrey;J. J. Goldberg;A. T. Goshaw;G. Hall;E. R. Hancock;T. Handler;H. J. Hargis;E. L. Hart;M. J. Harwin;K. Hasegawa;R. I. Hulsizer;M. Jobes;T. Kafka;G. E. Kalmus;D. P. Kelsey;T. Kitagaki;A. Levy;P. W. Lucas;W. A. Mann;R. Merenyi;R. Milburn;C. Milstene;K. C. Moffeit;A. Napier;S. Noguchi;F. Ochiai;S. O’Neale;A. P. T. Palounek;I. A. Pless;P. Rankin;W. J. Robertson;H. Sagawa;T. Sato;J. Schneps;S. J. Sewell;J. Shank;A. M. Shapiro;R. Sugahara;A. Suzuki;K. Takahashi;K. Tamai;S. Tanaka;S. Tether;D. A. Waide;W. D. Walker;M. Widgoff;C. G. Wilkins;S. Wolbers;A. Yamaguchi;R. K. Yamamoto;S. Yamashita;Y. Yoshimura;G. P. Yost;H. Yuta;
physical review d 1985 Vol. 32 pp. 2869-2882
160
yuta1985physicalinclusive

Abstract

Cross sections are presented for the inclusive photoproduction of KS0, Λ, Λ¯, Ξ−, Ξ¯−, Σ0, and Σ*±(1385) at 20 GeV. An upper limit to Ω− production is also given. The data come from 284 000 hadronic events photoproduced in the SLAC 1-m hydrogen-bubble-chamber hybrid facility exposed to a nearly monochromatic, polarized 20-GeV backscattered photon beam. A comparison of the KS0, Λ, Λ¯, and Ξ− rates per inelastic event to π±p data show that γp rates are consistent with being higher than the π±p rates, providing evidence of an ss¯ component of the photon. The pair cross sections for KS0KS0, KS0Λ, KSoΛ¯, and ΛΛ¯ are presented. The xF distributions of the Λ, Λ¯, and Ξ− are compared to a quark-diquark fusion model, giving information on strange-baryon photoproduction mechanisms.

Keywords

cross section

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DOI:
10.1103/physrevd.32.2869
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https://sciprofiles.com/publication/view/c36f6aed2...

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ID: 273314
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