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In non-central heavy ion collisions, identical two particle Hanbury-Brown/Twiss (HBT) correlations C(K,q) depend on the azimuthal direction of the pair momentum K. We investigate the consequences for a harmonic analysis of the corresponding…

Nuclear Theory · Physics 2008-11-26 Urs Achim Wiedemann

We investigate the fluctuations of pion elliptic flow, triangular flow, and Hanbury-Brown-Twiss (HBT) correlation functions for the hydrodynamic sources with fluctuating initial conditions in the heavy ion collisions of the Au-Au at…

Nuclear Theory · Physics 2015-02-11 Ying Hu , Wei-Ning Zhang , Yan-Yu Ren

Azimuthally-differential femtoscopic measurements, being sensitive to spatio-temporal characteristics of the source as well as to the collective velocity fields at freeze out, provide very important information on the nature and dynamics of…

Nuclear Experiment · Physics 2019-01-18 ALICE Collaboration

Currently, the only known way to obtain experimental information about the space-time structure of a heavy-ion collision is through 2-particle momentum correlations. Azimuthally sensitive HBT interferometry (Hanbury Brown-Twiss intensity…

Nuclear Theory · Physics 2011-07-01 Evan Frodermann , Ulrich Heinz

Through $^{12}$C + $^{197}$Au collisions at $\sqrt{s_{NN}} =$ 200 GeV using a multiphase transport (AMPT) model, the azimuthal angle dependences of the Hanbury Brown-Twiss (HBT) radii relative to the second- and third-order participant…

Nuclear Theory · Physics 2020-02-17 Junjie He , Song Zhang , Yu-Gang Ma , Jinhui Chen , Chen Zhong

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 analyze the pion femtoscopy correlations in noncentral Au-Au and Pb-Pb collisions. The azimuthally sensitive Hanbury Brown-Twiss (HBT) method is used to extract the interferometry radii depending on the azimuthal angle with respect to…

Nuclear Theory · Physics 2014-05-08 Piotr Bozek

Two-particle Hanbury-Brown-Twiss (HBT) interferometry is an important probe for understanding the space-time structure of particle emission sources in high energy heavy ion collisions. We present the comparative studies of HBT radii in…

Nuclear Experiment · Physics 2018-07-17 Debasish Das

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

The nuclear overlap zone in non-central relativistic heavy ion collisions is azimuthally very asymmetric. By varying the angle between the axes of deformation and the transverse direction of the pair momenta, the transverse HBT radii…

Nuclear Theory · Physics 2009-10-31 H. Heiselberg

We study the impacts of the squeezing effect caused by in-medium mass modification on the Hanbury Brown-Twiss (HBT) correlation of $\phi\phi$ using a hydrodynamical source. The squeezing effect reduces the influence of transverse flow on…

High Energy Physics - Phenomenology · Physics 2025-04-28 Yong Zhang , Peng Ru

The effects of anisotropic transverse collective flow on the HBT correlation function is studied. There exist three different physics contributions related to flow which affect the correlation function: anisotropic source shape, anisotropic…

Nuclear Theory · Physics 2008-11-26 S. A. Voloshin , W. E. Cleland

Using the technique of quantum transport of the interfering pair we examine the Hanbury-Brown-Twiss (HBT) interferometry signatures for the particle-emitting sources of pions and kaons produced in the heavy ion collisions at GSI-FAIR…

High Energy Physics - Phenomenology · Physics 2015-05-13 Li-Li Yu , M. J. Efaaf , Yan-Yu Ren , Wei-Ning Zhang

The azimuthal dependence of 3D HBT radii relative to the event plane gives us information about the source shape at freeze-out. It also provides information on the system's evolution by comparing it to the initial source shape. In recent…

Nuclear Experiment · Physics 2019-08-14 Takafumi Niida

We use a multi-phase transport (AMPT) model to study multi-pion and multi-kaon Hanbury Brown-Twiss (HBT) correlations for the partially coherent particle-emitting sources in relativistic heavy-ion collisions. A density-dependent…

Nuclear Theory · Physics 2024-11-19 Shi-Yao Wang , Jun-Ting Ye , Wei-Ning Zhang

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

The Hanbury-Brown-Twiss (HBT) radii have been calculated from the two particle correlation functions with virtual photons produced in the collisions of two nuclei at ultra-relativistic energies. We show that the variation of the HBT radii…

Nuclear Theory · Physics 2015-03-17 Payal Mohanty , Jan-e Alam , Bedangadas Mohanty

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

We introduce the concepts of participant triangularity and triangular flow in heavy-ion collisions, analogous to the definitions of participant eccentricity and elliptic flow. The participant triangularity characterizes the triangular…

Nuclear Theory · Physics 2014-11-20 B. Alver , G. Roland

The two particle interferometry method to determine the size of the emitting source after a heavy ion collision is extended. Following the extension of the method to spherical expansion dynamics, here we extend the method to rotating…

Nuclear Theory · Physics 2016-05-04 S. Velle , S. Mehrabi Pari , L. P. Csernai
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