Observation of short range three particle correlations in e+ e- annihilations at LEP energies

Abreu, P.; Adam, W.; Adye, T.; Agasi, E.; Azhinenko, I.; Aleksan, R.; Alekseev, G.D.; Allport, P.P.; Almehed, S.; Alvsvaag, S.J.

doi:10.1016/0370-2693(95)00711-S

Observation of short range three particle correlations in e+ e- annihilations at LEP energies

DELPHI

Collaboration

May, 1995

10 pages

Published in:

Phys.Lett.B 355 (1995) 415-424

DOI:

10.1016/0370-2693(95)00711-S

Report number:

CERN-PPE-95-077,
CERN-PPE-95-77

Experiments:

CERN-LEP-DELPHI

View in:

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Abstract: (Elsevier)

Measurements are presented of short range three-particle correlations in e + e − annihilations at LEP using data collected by the DELPHI detector. At small values of the four-momentum difference, strong three-particle correlations are observed for like-sign (+++ and −−−) and for unlike-sign (++− and +−−) pion combinations which are not a consequence of two-particle correlations. A possible explanation of the observed effects in like-sign combinations is the existence of higher order Bose-Einstein interference, which significantly changes the particle distributions in jets.

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
Z0: electroproduction
electroproduction: Z0
hadron: multiple production
multiple production: hadron
charge correlation: (3particle)
charge correlation: short-range

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