Multidimensional HBT correlations in pp̄ collisions at √s=630GeV

Eggers H.C. ; Buschbeck B. ; October F.J. (2006)

Conference Paper

We analyse second moments R2 of like-sign pion pairs in the two-dimensional (qL,qT) and three-dimensional (q O,qS,qL) decompositions of the three-momentum difference. Conventional fit parametrisations such as gaussian, exponential, power-law and Edgeworth fail miserably, while more elaborate ones such as Lévy do well but fail to yield a unique best-fit solution. A two-component model using a hard cut to separate small- and large-scale parts appears possible but not compelling. In all cases, the data exhibits a strong and hitherto unexplained peak at small momentum differences which exceeds current fits. © 2006 American Institute of Physics.

Please refer to this item in SUNScholar by using the following persistent URL:
This item appears in the following collections: