Measurement of Bose-Einstein correlations at LEP
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- 作者：Chamizo Llatas ; M.
- 刊名：Nuclear Physics B - Proceedings Supplements
- 出版年：2002
- 出版时间：June, 2002
- 年：2002
- 卷：109
- 期：Complete
- 页码：218-223
- 全文大小：536 K
文摘
A review of Bose-Einstein correlations is presented here using data collected at LEP. Bose-Einstein correlations have been studied in hadronic Z decays produced in e+e− interactions at √s 
91 GeV. They have been observed in pairs of identical pions, charged and neutral, showing a smaller size for the neutral source. Also a multidimensional analysis has been performed that shows an elongation of the source along the direction of the motion of the original quark. At higher centre of mass energies, (√s 200 GeV), it was possible to study the Bose-Einstein effect in W-pair production. In particular, Bose-Einstein correlations are investigated between particles coming from different W's as they may influcence the W mass measurement in the four-jet channel.
91 GeV. They have been observed in pairs of identical pions, charged and neutral, showing a smaller size for the neutral source. Also a multidimensional analysis has been performed that shows an elongation of the source along the direction of the motion of the original quark. At higher centre of mass energies, (√s 200 GeV), it was possible to study the Bose-Einstein effect in W-pair production. In particular, Bose-Einstein correlations are investigated between particles coming from different W's as they may influcence the W mass measurement in the four-jet channel.