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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 report on a systematic treatment of Coulomb corrections for 3- and n-particle (Bose-Einstein) correlations, leading to a removal of a 100 % systematic error from earlier Coulomb corrections of 5-particle Bose-Einstein correlations in…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. O. Alt , T. Csorgo , B. Lorstad , J. Schmidt-Sorensen

The Coulomb exchange and correlation energy density functionals for electron systems are applied to nuclear systems. It is found that the exchange functionals in the generalized gradient approximation provide agreements with the exact-Fock…

Nuclear Theory · Physics 2019-12-09 Tomoya Naito , Ryosuke Akashi , Gianluca Colò , Haozhao Liang , Xavier Roca-Maza

We applied an improved Coulomb correction method developed by us recently to data on identical KK-pairs production in S + Pb and p + Pb reactions at 200 GeV/c obtained by NA44 Collaboration. To analyse the whole range of the momentum…

High Energy Physics - Phenomenology · Physics 2009-10-28 M. Biyajima T. Mizoguchi , T. Osada , G. Wilk

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 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

In previous works, in order to include correction by the Coulomb wave function in Bose-Einstein correlations (BEC), the two-body Coulomb scattering wave functions have been utilized in the formulation of three-body BEC. However, the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Minoru Biyajima , Takuya Mizoguchi , Naomichi Suzuki

The formulas in the above Erratum are corrected.

High Energy Physics - Phenomenology · Physics 2007-05-23 T. Csorgo

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 numerical implementation of an exchange-correlation functional is not always an accurate reproduction of its theoretical specification. For example, density functionals for exchange and correlation can be defined by an exchange or…

Materials Science · Physics 2012-11-01 Jonathan E. Moussa , Peter A. Schultz

The effect of multi-particle Coulomb final state interactions on higher-order intensity correlations is determined in general, based on a scattering wave function which is solution of the n-body Coulomb Schr\"odinger equation in (a large…

Nuclear Theory · Physics 2011-09-13 E. O. Alt , T. Csorgo , B. Lorstad , J. Schmidt-Sorensen

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

In analogy with the quantum field theory of free bosons a simple integral representation is derived for recently proposed corrections describing the Bose Einstein effect. The saddle point approximation to these integrals results in a…

High Energy Physics - Phenomenology · Physics 2009-10-30 J. Wosiek

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

Particle correlations and femtoscopy are a rich subfield of high-energy physics. As the experimental data become more precise, there is an increasing need for the theoretical calculations to provide better and more general descriptions of…

Nuclear Theory · Physics 2026-05-26 Márton I. Nagy , Máté Csanád , Dániel Kincses

We review the basic notion of correlations in point processes, adapted to the language of high energy physicists. The measurement of accessible information on correlations by means of correlation integrals is summarized. Applications to the…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Lipa , H. C. Eggers , B. Buschbeck

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

Most approximate exchange-correlation functionals used within density functional theory are constructed as the sum of two distinct contributions for exchange and correlation. Separating the exchange component from the entire functional is…

Condensed Matter · Physics 2009-10-28 Claudia Filippi , C. J. Umrigar , Xavier Gonze

Binding energies calculated from using the Bethe-Salpeter equation in the simplest ladder approximation significantly differ from those obtained in the non-relativistic standard instantaneous approximation. While they should a priori be…

Nuclear Theory · Physics 2007-05-23 G. Le Gorrec , B. Desplanques

To estimate the strength of the Bose-Einstein correlations and the radius of the hadronization region in multiparticle production, the two-particle correlation functions $R$ for identical pairs is adjusted to a parametric function…

High Energy Physics - Experiment · Physics 2009-10-31 A. De Angelis , L. Vitale
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