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We are presenting here the new formulae for Bose-Einstein correlations (BEC) which contain effects of final state interactions (FSI) of both strong (in $s$-wave) and electromagnetic origin. We demonstrate the importance of FSI in BEC by…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Biyajima , T. Mizoguchi , T. Osada , G. Wilk

We present an analytical formula for the Bose-Einstein correlations (BEC) which includes effects of both Coulomb and strong final stateinteractions (FSI). It was obtained by using Coulomb wave function together with the scattering partial…

High Energy Physics - Phenomenology · Physics 2009-10-28 T. Osada , S. Sano , M. Biyajima

Recently DELPHI Collaboration reported new data on Bose-Einstein correlations (BEC) measured in e+e- -> W^+W^- events. Apparently no enhancement has been observed. We have analyzed these data including final state interactions (FSI) of both…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. Biyajima , S. Sano , T. Osada

Bose-Einstein correlations (BEC) between final state particles in the reaction e+e- -> W+W- -> q_1 anti-q_2 q_3 anti-q_4 have been studied. Data corresponding to a total integrated luminosity of 550 pb^{-1}, recorded by the DELPHI detector…

High Energy Physics - Experiment · Physics 2008-11-26 The DELPHI Collaboration , J. Abdallah

The recent data for Bose-Einstein Correlations (BEC) of three-charged particles obtained by NA44 Collaboration have been analysed using theoretical formula with Coulomb wave functions. It has been recently proposed by Alt et al. It turns…

High Energy Physics - Phenomenology · Physics 2009-10-31 T. Mizoguchi , M. Biyajima

Using effective formulas we analyze the Bose-Einstein correlations (BEC) data corrected for Coulomb interactions provided by STAR Collaboration and the quasi-corrected data (raw data with acceptance correction etc) on 2\pi and 3\pi BEC by…

Nuclear Theory · Physics 2009-11-10 M. Biyajima , M. Kaneyama , T. Mizoguchi

Measurements of Bose-Einstein correlations played a crucial role in the discovery and the subsequent detailed exploration of the Quark-Gluon-Plasma (QGP) created in high-energy collisions of heavy nuclei. Such measurements gave rise to…

Nuclear Theory · Physics 2023-11-13 Márton Nagy , Aletta Purzsa , Máté Csanád , Dániel Kincses

The aim of this work is to investigate how energy depends on the two-body interaction potential in Bose-Einstein condensation (BEC) phenomena. An equation of state is obtained which is valid both for low and high energy BEC, through the…

Other Condensed Matter · Physics 2009-03-28 Vito Barbarani

Intensity interferometry and in particular that due to Bose Einstein correlations (BEC) constitutes at present the only direct experimental method for the determination of sizes and lifetimes of sources in particle and nuclear physics. The…

High Energy Physics - Phenomenology · Physics 2009-10-31 Richard M. Weiner

Starting from an asymptotically correct three-body Coulomb wave-function, we determine the effect of Coulomb final state interaction on the three-particle Bose-Einstein correlation function of similarly charged particles. We numerically…

High Energy Physics - Phenomenology · Physics 2019-08-17 E. O. Alt , T. Csörgö , B. Lörstad , J. Schmidt-Sørensen

The effects of Final State Interactions(FSI), Colour Reconnection(CR) and Bose--Einstein Correlations(BEC) at small relative momenta of particles are discussed. The short review of the LEP results on BEC at Z-peak, on BEC between particles…

High Energy Physics - Experiment · Physics 2017-08-23 Nelli Pukhaeva , Amiran Tomaradze

In the study of femtoscopic correlations in high-energy physics, besides Bose--Einstein correlations, one has to take final-state interactions into account. Amongst them, Coulomb interactions play a prominent role in the case of charged…

Nuclear Theory · Physics 2024-01-17 Bálint Kurgyis , Dániel Kincses , Márton Nagy , Máté Csanád

We show that the final-state interaction explains the nontrivial near-threshold energy dependence of the cross section of the process $e^{+}e^{-}\rightarrow\Lambda_{c}\bar{\Lambda}_{c}$ observed by the Belle and BESIII collaborations. This…

High Energy Physics - Phenomenology · Physics 2022-10-11 A. I. Milstein , S. G. Salnikov

In order to include a correction by the Coulomb interaction in Bose-Einstein correlations (BEC), the wave function for the Coulomb scattering were introduced in the quantum optical approach to BEC in the previous work. If we formulate the…

High Energy Physics - Phenomenology · Physics 2015-06-25 Minoru Biyajima , Takuya Mizoguchi , Naomichi Suzuki

The Bose-Einstein correlation (BEC) in forward region ($2.0<\eta<4.8$) measured at 7 TeV in the Large Hadron Collider (LHC) by the LHCb collaboration is analyzed using two conventional formulas of different types named CF$_{\rm I}$ and…

High Energy Physics - Phenomenology · Physics 2020-05-20 Takuya Mizoguchi , Minoru Biyajima

This report summarises the recent studies of the Bose-Einstein Correlations (BEC) carried out by the four LEP experiments using hadronic Z$^0$ decay events and $e^+ e^-$ reactions leading to the WW decay final states. The three identical…

High Energy Physics - Phenomenology · Physics 2007-05-23 Gideon Alexander , Iuliana Cohen

We present detailed calculations about the expected shape of two-pion Bose-Einstein (or HBT) correlations in high energy heavy ion collisions that include a realistic treatment of final state Coulomb interaction as well as strong…

High Energy Physics - Phenomenology · Physics 2023-09-27 D. Kincses , M. I. Nagy , M. Csanád

Using the Bose-Einstein correlations (BEC) implemented in PYTHIA we investigated a possibility of the CDF experiment at the Tevatron to see the two-particle correlations in the final state of interactions. The approach based on quantum…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. A. Kozlov , L. Lovas , S. Tokar , Yu. A. Boudagov , A. N. Sissakian

Measurements of Bose-Einstein correlations of pion pairs in central Pb+Pb collisions were performed with the NA49 detector at the CERN SPS for beam energies of 20A, 30A, 40A, 80A, and 158A GeV. Correlation functions were measured in the…

Nuclear Experiment · Physics 2012-08-27 NA49 Collaboration

Measurements of momentum space correlations in heavy ion reactions are a unique tools to investigate the properties of the created medium. However, these analyses require the careful handling of the final state interactions such as the…

High Energy Physics - Phenomenology · Physics 2020-05-22 Máté Csanád , Sándor Lökös , Márton Nagy
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