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The Hanbury Brown-Twiss (HBT) effect, discovered in the 1950s and further developed in the 1960s, was originally used to estimate stellar angular diameters through intensity correlations measured by spatially separated detectors. Further…

Multi-boson symmetrization effects on two-particle Bose-Einstein interferometry are studied for ensembles with arbitrary multiplicity distributions. This generalizes the previously studied case of a Poissonian input multiplicity…

High Energy Physics - Phenomenology · Physics 2009-10-09 Ulrich Heinz , Pierre Scotto , Qing-Hui Zhang

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

The use of electron beams is ubiquitous; electron microscopy, scanning tunneling microscopy, electron lithography, and electron diffractometry all use well-collimated and focused beams. On the other hand, quantum degenerate electron beams…

Quantum Physics · Physics 2019-01-09 Sam Keramati , Eric R. Jones , Jeremy Armstrong , Herman Batelaan

Intensity interferometry in noncentral heavy ion collisions provides access to novel information on the geometry of the effective pion-emitting source. We demonstrate analytically that, even for vanishing pair momentum, the cross terms…

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

Peripheral heavy ion reactions at ultra relativistic energies have large angular momentum that can be studied via two particle correlations using the Differential Hanbury Brown and Twiss method. In the present work we analyze the…

Nuclear Theory · Physics 2014-07-29 L. P. Csernai , S. Velle

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

Two- and three-pion correlation functions are investigated for a source that is not fully chaotic. Various models are examined to describe the source. The chaoticity and weight factor are evaluated in each model as measures of the strength…

Nuclear Theory · Physics 2009-10-31 Hiroki Nakamura , Ryoichi Seki

An important tool in studying the sub-femtoscale spacetime structure of matter in ultrarelativistic heavy-ion collisions is Hanbury-Brown-Twiss (HBT) intensity interferometry of identical particles in the final state of such collisions. We…

High Energy Physics - Phenomenology · Physics 2024-12-11 James Daniel Brandenburg , Haowu Duan , Zhoudunming Tu , Raju Venugopalan , Zhangbu Xu

A pairwise correlation function in relative momentum space is discussed as a tool to characterize the properties of an incoherent source of non-interacting Abelian anyons. This is analogous to the Hanbury--Brown Twiss effect for particles…

Quantum Physics · Physics 2009-11-10 T. D. Gutierrez

For a set of N identical massive boson wavepackets with optimal initial quantum mechanical localization, we calculate the Hanbury-Brown/Twiss (HBT) two-particle correlation function. Our result provides an algorithm for calculating…

Nuclear Theory · Physics 2008-11-26 U. A. Wiedemann , P. Foka , H. Kalechofsky , M. Martin , C. Slotta , Q. H. Zhang

The relationship between pion and kaon space-time freeze-out distributions and the HBT radius parameters in high-energy nucleus-nucleus collisions is investigated. We show that the HBT radius parameters in general do not reflect the R.M.S.…

Nuclear Theory · Physics 2014-11-18 D. Hardtke , S. A. Voloshin

The Hanbury Brown-Twiss (HBT) effect, at the quantum level, is essentially an interference of one particle with another, as opposed to interference of a particle with itself. Conventional treatments of identical particles encounter…

Quantum Physics · Physics 2017-12-01 Tabish Qureshi , Ushba Rizwan

Two-kaon and two-pion correlation functions for an expanding thermalized source are compared. In the Yano-Koonin-Podgoretskii parametrization of the correlation function, the HBT radius parameters are shown to obey M_\bot- scaling in the…

Nuclear Theory · Physics 2022-02-23 U. Heinz , B. Tomasik , U. A. Wiedemann , Y. -F. Wu

A method for quantum corrections of Hanbury-Brown/Twiss (HBT) interferometric radii produced by semi-classical event generators is proposed. These corrections account for the basic indistinguishability and mutual coherence of closely…

High Energy Physics - Phenomenology · Physics 2013-07-29 V. M. Shapoval , P. Braun-Munzinger , Iu. A. Karpenko , Yu. M. Sinyukov

Intensity interferometry originates from the field of radio astronomy on the trace of Robert Hanbury Brown and Richard Quincy Twiss. In high energy physics, the phenomena was discovered by Goldhaber, Goldhaber, Lee and Pais. In radio…

High Energy Physics - Experiment · Physics 2022-10-14 Sándor Lökös

Fifty years ago, Hanbury Brown and Twiss (HBT) discovered photon bunching in light emitted by a chaotic source, highlighting the importance of two-photon correlations and stimulating the development of modern quantum optics . The quantum…

Measurements of femtoscopic correlations in high-energy heavy-ion collisions aim to unravel the space-time structure of the particle-emitting source (the quark-gluon plasma). Recent results indicate that the pion pair source exhibits a…

Nuclear Experiment · Physics 2024-03-27 Dániel Kincses

q-deformed oscillators and the q-Bose gas model enable effective description of the observed non-Bose type behavior of the intercept ("strength") $\lambda^{(2)}\equiv C^{(2)}(K,K)-1$ of two-particle correlation function $C^{(2)}(p_1,p_2)$…

High Energy Physics - Phenomenology · Physics 2008-12-19 Alexandre M. Gavrilik

Bose-Einstein momentum correlation functions of identical bosons reveal the shape and size of the (soft) particle emitting source of the given particle. The widths of these correlation functions are called HBT radii, named after Brown and…

Nuclear Experiment · Physics 2019-08-13 Mate Csanad
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