Pion interferometry in jet events at the CERN Intersecting Storage Rings

• DOI: 10.1007/bf01630589
• Publication Date: 2005-05-06T17:08:22Z
• Authors: T. Åkesson; M. G. Albrow; S. Almehed; O. Benary; H. Bøggild; O. Botner; H. Breuker; V. Burkert; A. A. Carter; J. R. Carter; W. E. Cleland; S. Dagan; E. Dahl-Jensen; I. Dahl-Jensen; G. Damgaard; C. W. Fabjan; S. Frankel; U. Goerlach; K. H. Hansen; V. Hedberg; G. Jarlskog; N. Kjaer; R. Kroeger; K. Kulka; D. Lissauer; B. Lörstad; A. Markou; N. A. McCubbin; U. Mjörnmark; R. Møller; W. Molzon; B. S. Nielsen; L. H. Olsen; Y. Oren; J. Schukraft; K. Spang; I. Stumer; M. Sullivan; J. A. Thompson; H. H. Thodberg; E. Vella; J. Williamson; W. J. Willis; W. A. Zajc
• Keywords: Momentum transfer; Momentum (technical analysis)

We have observed an enhanced production of pairs and triplets of identical charged particles at small momentum differences in events with two central jets produced inpp collisions at the CERN Intersecting Storage Rings. The size and structure of this ‘Bose-Einstein’ enhancement, shown by the particles within a jet, resembles that observed in minimum-bias events. The correlation function can be well parametrized by the single variableQ — the absolute value of the four-momentum transfer — and is more peaked than a single Gaussian.