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Related papers: HBT Correlators -- Current Formalism vs. Wigner Fu…

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The Wigner function formalism which relates source size parameters to experimental ``HBT radii'' extracted from two-particle Bose-Einstein correlations is generalized to azimuthally deformed and longitudinally tilted sources. It is…

Nuclear Theory · Physics 2009-10-09 Ulrich W. Heinz

The Hanbury-Brown Twiss correlation function for two identical particles is studied for systems with cylindrical symmetry. Its shape for small values of the relative momentum is derived in a model independent way. In addition to the usual…

High Energy Physics - Phenomenology · Physics 2022-02-23 Scott Chapman , Pierre Scotto , Ulrich Heinz

The two-particle correlation function employed in Hanbury-Brown Twiss interferometry and femtoscopy is traditionally parameterized by a Gaussian form. Other forms, however, have also been used, including the somewhat more general L\'evy…

Nuclear Theory · Physics 2020-12-09 Jakub Cimerman , Christopher Plumberg , Boris Tomášik

Recent developments are (meta)reviewed in the applications of Wigner functions to describe the observed single particle spectra and two-particle Bose-Einstein (or Hanbury Brown -- Twiss) correlations in high energy particle and nuclear…

Quantum Physics · Physics 2009-11-10 T. Csorgo

Using two specific models and a model-independent formalism, we show that in addition to the usual quadratic ``side'', ``out'' and ``longitudinal'' terms, a previously neglected ``out-longitudinal'' cross term arises naturally in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Scott Chapman , Pierre Scotto , Ulrich Heinz

In heavy ion collisions resonances can create strong non-Gaussian effects in the 2-pion correlation data. Hence, the commonly used Gaussian fit parameters do not fully characterize these correlators. We suggest a different set of HBT…

Nuclear Theory · Physics 2008-11-26 Urs Achim Wiedemann , Ulrich Heinz

Classical model of light in helicity formalism is presented. Then quantum point of view at photons -- construction and interpretation of photon wave function is proposed. Quantum mechanics of photon is investigated. The Bia\l ynicki --…

Quantum Physics · Physics 2021-02-03 Maciej Przanowski , Jaromir Tosiek , Francisco J. Turrubiates

We present an upgraded formula for Wigner function and spin polarization of fermions emitted by a relativistic fluid at local thermodynamic equilibrium at the decoupling which improves the one obtained in refs. [1, 2] and used in numerical…

Nuclear Theory · Physics 2026-01-23 Xin-Li Sheng , Francesco Becattini , Daniele Roselli

The transverse momentum dependence of Hanbury-Brown/Twiss (HBT) interferometry radii for 2-body correlation functions provides experimental access to the collective dynamics in heavy-ion collisions. We present an analytical approximation…

Nuclear Theory · Physics 2008-11-26 Urs Achim Wiedemann , Pierre Scotto , Ulrich Heinz

We calculate the two-pion correlation function for an expanding hadron source with a finite baryon density. The space-time evolution of the source is described by relativistic hydrodynamics and the Hanbury-Brown-Twiss (HBT) radius is…

Nuclear Theory · Physics 2009-11-10 W. N. Zhang , M. J. Efaaf , Cheuk-Yin Wong , M. Khaliliasr

A review on the two-pion Hanbury-Brown-Twiss (HBT) interferometry in the granular source model of quark-gluon plasma droplets is presented. The characteristic quantities of the granular source extracted by imaging analysis are presented and…

Nuclear Theory · Physics 2012-03-01 Wei-Ning Zhang

An explicit closed form expression for 2-correlators of Witten's two dimensional topological gravity is derived in arbitrary genus.

Algebraic Geometry · Mathematics 2020-12-08 Peter Zograf

The correlation of light from two sources leads to an interference pattern if they belong to a specific time interval known as the coherence time, denoted as $\Delta \tau$. The relationship governing this phenomenon is $\Delta \tau \Delta…

Instrumentation and Methods for Astrophysics · Physics 2025-01-20 Km Nitu Rai , Soumen Basak , Subrata Sarangi , Prasenjit Saha

A brief review is given on the discovery and the first five decades of the Hanbury Brown - Twiss effect and its generalized applications in high energy nuclear and particle physics, that includes a meta-review. Interesting and inspiring new…

Nuclear Theory · Physics 2015-06-26 T. Csorgo

I discuss two-particle intensity interferometry as a method to extract from measured 1- and 2-particle momentum spectra information on the space-time geometry and dynamics of the particle emitting source. Particular attention is given to…

Nuclear Theory · Physics 2007-05-23 Ulrich Heinz

We present various generalizations of the Dirac formalism. The different-parity solutions of the Weinberg's 2(2J+1)-component equations are found. On this basis, generalizations of the Bargmann-Wigner (BW) formalism are proposed. Relations…

High Energy Physics - Theory · Physics 2014-11-18 Valeri V. Dvoeglazov

We study a Hanbury Brown and Twiss (HBT) interferometer formed with chiral edge channels of a quantum Hall system. HBT cross-correlations are calculated for a device operating both in the integer and fractional quantum Hall regimes, the…

Mesoscale and Nanoscale Physics · Physics 2014-01-07 Gabriele Campagnano , Oded Zilberberg , Igor V. Gornyi , Yuval Gefen

We consider two-particle correlations, which appear in relativistic nuclear collisions due to the quantum statistics of identical particles, in the frame of two formalisms: wave-function and current. The first one is based on solution of…

High Energy Physics - Phenomenology · Physics 2008-11-26 Dmitry Anchishkin , Ulrich Heinz

In this report we give a detailed account on Hanbury Brown/Twiss (HBT) particle interferometric methods for relativistic heavy-ion collisions. These exploit identical two-particle correlations to gain access to the space-time geometry and…

Nuclear Theory · Physics 2009-10-09 Urs Achim Wiedemann , Ulrich Heinz

The pair correlation functions for a bilayer system of classical electrons has been calculated through a two-component HNC formalism. The results show changes in the structure of the correlation functions as the interlayer distance is…

Condensed Matter · Physics 2009-09-25 V. I. Valtchinov , G. Kalman , K. Blagoev
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