Inclusive Lambda production in two-photon collisions at LEP

Pablo Achard,Oscar S. Adriáni,M. Aguilar-Benítez,Juan Alcaraz,G. Alemanni,Jim V. Allaby,Alberto Aloisio,M. G. Alviggi,Hans B. Anderhub,V. P. Andreev,F. Anselmo,A. S. Arefiev,Tofigh Azemoon,Tariq Aziz,Paolo Bagnaia, A. Bajo,Gyöngyi Baksay,László A. Baksay,S. V. Baldew,Sw W. Banerjee,Artur Barczyk,R. Barillère,P. Bartalini,Maurizio Basile,N. V. Batalova,Roberto Battiston,Aurelio Bay,Francesco Becattini,Ulrich J. Becker,F. Behner,Luca Bellucci,Ross I. Berbeco,J. Berdugo,P. Berges,Bruna Bertucci,Botio L. Betev,Maurizio Biasini,M. G. Biglietti,Adrian Biland,JJ J. Blaising, S. C. Blyth,GJ J. Bobbink, Albrecht Böhm,László Boldizsár,Bruno Borgia,Sergio Bottai,Dimitri Bourilkov,Maurice H. Bourquin,Stefano Braccini,James G. Branson,Frederic M. Brochu,Joseph D. Bürger,William J. Burger,Xu Cai,Michael Capell,G. Cara Romeo,Gianpaolo P. Carlino,Annamaria M. Cartacci,Jorge Casaus,Francesca Cavallari,Nicola Cavallo,Claudia Cecchi,M. Cerrada,M. Chamizo Chamizo,Yun Chang,M. Chemarin,Augustine E. Chen,Guomeng Chen,Guoming Chen,Hui Chen,Hesheng Chen,G. V. Chiefari,Luisa Cifarelli,Federico Cindolo,I. Clare,Robert M. Clare,Guy G. Coignet, N. Colino,Silvia Costantini,Begoña De La Cruz,Susanna Cücciarelli,J. A. Van Dalen,Riccardo De Asmundis,P. Déglon,J. Debreczeni,A. Degré,Klaus Dehmelt, K. Deiters,D. Della Volpe,E. Delmeire,Peter Denes,Francesco De Notaristefani,Alessandro De Salvo,Marcella Diemoz,Mark Dierckxsens,Carla Dionisi,Michael Dittmar,Alessandra Doria

Physics Letters B（2004）

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摘要

The reactions e+e−→e+e−ΛX and e+e−→e+e−Λ̄X are studied using data collected at LEP with the L3 detector at centre-of-mass energies between 189 and 209 GeV. Inclusive differential cross sections are measured as a function of the lambda transverse momentum, pt, and pseudo-rapidity, η, in the ranges 0.4 GeV更多

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关键词

photon,pair production,order,detector

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