Observation ofΩ−Production ine+e−Annihilation at 29 GeV
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ID: 272156
1987
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Abstract
Inclusive Ω− production in e+e− annihilation at 29 GeV has been measured with the Mark II detector. From an integrated luminosity of 207 pb−1, we determine a production rate of 0.014±0.006±0.004 Ω−, Ω¯+ per hadronic event. This is roughly 35 times the Lund-model prediction of 0.0004 Ω−, Ω¯+ per hadronic event, but comparable to the Webber-model prediction of 0.006 Ω−, Ω¯+ per hadronic event. The large rate of Ω− production, compared with production rates for other baryons, and with theoretical predictions based on diquark models, indicates that spin suppression does not hold for Ω− production.
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| Authors | S. R. Klein,T. Himel,G. Abrams,D. Amidei,A. R. Baden,T. Barklow,A. M. Boyarski,J. Boyer,P. R. Burchat,D. L. Burke,F. Butler,J. M. Dorfan,G. J. Feldman,G. Gidal,L. Gladney,M. S. Gold,G. Goldhaber,L. Golding,J. Haggerty,G. Hanson,K. Hayes,D. Herrup,R. J. Hollebeek,W. R. Innes,J. A. Jaros,I. Juricic,J. A. Kadyk,D. Karlen,A. J. Lankford,R. R. Larsen,B. W. LeClaire,M. Levi,N. S. Lockyer,V. Lüth,C. Matteuzzi,M. E. Nelson,R. A. Ong,M. L. Perl,A. Petersen,B. Richter,K. Riles,P. C. Rowson,T. Schaad,H. Schellman,W. B. Schmidke,P. D. Sheldon,G. H. Trilling,C. de la Vaissière,D. R. Wood,J. M. Yelton;S. R. Klein;T. Himel;G. Abrams;D. Amidei;A. R. Baden;T. Barklow;A. M. Boyarski;J. Boyer;P. R. Burchat;D. L. Burke;F. Butler;J. M. Dorfan;G. J. Feldman;G. Gidal;L. Gladney;M. S. Gold;G. Goldhaber;L. Golding;J. Haggerty;G. Hanson;K. Hayes;D. Herrup;R. J. Hollebeek;W. R. Innes;J. A. Jaros;I. Juricic;J. A. Kadyk;D. Karlen;A. J. Lankford;R. R. Larsen;B. W. LeClaire;M. Levi;N. S. Lockyer;V. Lüth;C. Matteuzzi;M. E. Nelson;R. A. Ong;M. L. Perl;A. Petersen;B. Richter;K. Riles;P. C. Rowson;T. Schaad;H. Schellman;W. B. Schmidke;P. D. Sheldon;G. H. Trilling;C. de la Vaissière;D. R. Wood;J. M. Yelton; |
| Journal | physical review letters |
| Year | 1987 |
| DOI |
10.1103/physrevlett.59.2412
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| URL | |
| Keywords |
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