Λ Λ correlation function in Au+Au collisions at sNN =200GeV

Leszek Adamczyk,J. K. Adkins,G. Agakishiev,Madan M. Aggarwal,Zubayer Ahammed,I. G. Alekseev,J. Alford,C. D. Anson,A. Aparin,D. Arkhipkin,E. C. Aschenauer,G. S. Averichev,A. Banerjee,D. R. Beavis,Rene Bellwied,Anju Bhasin,A. K. Bhati,P. Bhattarai,H. Bichsel,Jaroslav Bielcik,Jana Bielcikova,L. C. Bland,I. G. Bordyuzhin,W. Borowski,J. Bouchet,A. V. Brandin,S. G. Brovko,S. Bültmann,I. Bunzarov,T. P. Burton,J. Butterworth,H. Caines,M. Calderon De La Barca Sanchez, J. M. Campbell,D. Cebra,R. Cendejas,M. C. Cervantes,P. Chaloupka,Z. Chang,Sukalyan Chattopadhyay,H. F. Chen, J. H. Chen,Li-Yi Chen,J. Cheng,M. Cherney,A. Chikanian,W. Christie,Janusz Chwastowski,M. J.M. Codrington,Giacomo Contin,J. G. Cramer,H. J. Crawford,Xiangyuan Cui,Sumit R. Das,A. Davila Leyva,L. C. De Silva,R. R. Debbe,T. G. Dedovich,Jian Deng,A. A. Derevschikov,R. Derradi de Souza,B. Di Ruzza,L. Didenko,C. Dilks,F. Ding,P. Djawotho,X. Dong,J. L. Drachenberg,J. E. Draper,C. M. Du,L. E. Dunkelberger,J. C. Dunlop,L. G. Efimov,J. Engelage,K. S. Engle,G. Eppley,L. Eun,Olga Evdokimov,O. Eyser,R. Fatemi,S. Fazio,J. Fedorisin,P. Filip,Y. Fisyak,C. E. Flores,C. A. Gagliardi,D. R. Gangadharan,D. Garand,Frank Jm Geurts,A. Gibson,M. R. Girard,Stephen V. Gliske,Leo Clifford Greiner,D. Grosnick,D. S. Gunarathne,Y. Guo,Anik Gupta,S. K. Gupta,W. Guryn,B. Haag

Physical Review Letters（2015）

引用 37|浏览12

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摘要

We present Lambda Lambda correlation measurements in heavy-ion collisions for Au + Au collisions at root s(NN) = 200 GeV using the STAR experiment at the Relativistic Heavy-Ion Collider. The Lednicky-Lyuboshitz analytical model has been used to fit the data to obtain a source size, a scattering length and an effective range. Implications of the measurement of the Lambda Lambda correlation function and interaction parameters for dihyperon searches are discussed.

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