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A new treatment of Bose-Einstein correlations is incorporated in a space-time parton-shower model for e+ e- annihilation into hadrons. Two alternative afterburners are discussed, and we use a simple calculable model to demonstrate that they…

High Energy Physics - Phenomenology · Physics 2009-09-11 K. Geiger , J. Ellis , U. Heinz , U. A. Wiedemann

The current status of the LEP results on Bose-Einstein correlations is discussed. Emphasis is given to the measurement of Bose-Einstein correlations between decay products from different W's, in an energy range between 172 and 209 GeV,…

High Energy Physics - Experiment · Physics 2007-05-23 N. van Remortel

It is observed that the finite size of hadrons produced in high energy collisions implies that their positions are correlated, since the probability of finding two hadrons on top of each other is highly reduced. It is then shown that this…

High Energy Physics - Phenomenology · Physics 2015-06-17 A. Bialas , K. Zalewski

We show that the most popular method to simulate Bose-Einstein (BE) interference effects predicts negligible correlations between identical pions originating from the hadronic decay of different W's produced in e+e- -> W+W- -> 4 jets at…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. V. Chekanov , A. De Roeck , E. A. De Wolf

Three- and four-pion Bose-Einstein correlations are presented in pp, p-Pb, and Pb-Pb collisions at the LHC. We compare our measured four-pion correlations to the expectation derived from two- and three-pion measurements. Such a comparison…

Nuclear Experiment · Physics 2016-11-15 ALICE Collaboration

An overview is given of the study of final state interactions in hadronically decaying W pairs produced in e^+e^--collisions as it is performed by the four LEP experiments. Bose-Einstein correlations are investigated by comparing like- with…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Dierckxsens

Bose-Einstein correlations of identical hadrons reveal information about hadron creation from the strongly interacting matter formed in ultrarelativistic heavy ion collisions. The measurement of three-particle correlations may in particular…

Nuclear Experiment · Physics 2018-01-12 Tamás Novák

With the OPAL detector at LEP we measured at energies around the Z0 peak the Bose-Einstein Correlations (BECs) of neutral pion pairs. We compare the results of this measurement with former results obtained at LEP for hadrons including those…

High Energy Physics - Experiment · Physics 2007-05-23 M. Boutemeur , G. Giacomelli

Correlations among hadrons with the same electric charge produced in Z0 decays are studied using the high statistics data collected from 1991 through 1995 with the OPAL detector at LEP. Normalized factorial cumulants up to fourth order are…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL collaboration , G. Abbiendi

Interactions between the products of the hadronic decays of different Ws in WW pair events can occur at several stages: from the colour rearrangement between the quarks coming from the primary branching, to the gluon exchange during the…

High Energy Physics - Experiment · Physics 2011-07-19 Alessandro De Angelis

Recent measurements have revealed a significant suppression of multipion Bose-Einstein correlations in heavy-ion collisions at the LHC. The suppression may be explained by postulating coherent pion emission. Typically, the suppression of…

Nuclear Theory · Physics 2016-09-21 Dhevan Gangadharan

Color reconnection and Bose-Einstein correlations not only can have an influence on the measurement of the W-mass in the fully hadronic W+W- decay channel at LEP2, but also can give essential information on the structure of the QCD vacuum…

High Energy Physics - Phenomenology · Physics 2007-05-23 Wolfram Kittel

An overview of measurements of Bose-Einstein correlations in W-pair events at LEP is given. The results presented are based on data collected at centre-of-mass energies between 172 and 202GeV. The review concentrates on the search for…

High Energy Physics - Experiment · Physics 2007-05-23 A. Valassi

Particle correlations are extensively studied to obtain information about the dynamics of hadron production. From 1989 to 2000 the four LEP collaborations recorded more than 16 million hadronic Z0 decays and several thousand W+W- events. In…

High Energy Physics - Experiment · Physics 2017-08-23 Thomas Kress

Bose-Einstein correlations in proton-proton collisions at the LHC are well descried by the formula with two different scales. It is shown for the first time that the pions are produced by few small size sources distributed over a much…

High Energy Physics - Phenomenology · Physics 2019-06-21 V. A. Schegelsky , M. G. Ryskin

We shortly review recent successes in applying Bose-Einstein interferometry in heavy ion collisions and the proceed to some model calculations for 3-dimensional Bose-Einstein correlation functions in electron-positron collisions at the Z0…

Nuclear Theory · Physics 2007-05-23 Ulrich Heinz , Pierre Scotto

The studies of Fermi-Dirac correlations of $\Lambda\Lambda$ and $\bar{\Lambda}\bar{\Lambda}$ pairs in hadronic $\mathrm{Z}$ decays, Bose-Einstein correlations and colour reconnection in $\mathrm{W}$-pairs decays performed by the ALEPH…

High Energy Physics - Experiment · Physics 2011-07-19 V. M. Ghete

The theory for Bose-Einstein correlations in case of neutral gauge bosons in $pp$ collisions at high energies is presented. Based on quantum field theory at finite temperature the two-particle Bose-Einstein correlations of neutral gauge…

High Energy Physics - Phenomenology · Physics 2009-04-17 G. A. Kozlov

Bose-Einstein correlation between like-sign charged-particle pairs in e+e- -> W+W- events recorded with the OPAL detector at LEP at centre-of-mass energies between 183 GeV and 209 GeV are studied. Recently proposed methods which allow…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL collaboration , G. Abbiendi

Bose-Einstein symmetrization can lead to correlations between out going identical particles which reflect the space-time extent of the collision process. At LEP and LEPII these correlations have been studied as a function of a single…

High Energy Physics - Phenomenology · Physics 2009-10-31 Mark Smith