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Collisions between nuclei at ultrarelativistic energies produce a color-deconfined plasma that expands explosively and rapidly reverts to the color-confined (hadronic) state. In non-central collisions, the zone of hot matter is transversely…

核理论 · 物理学 2011-06-10 M. A. Lisa , E. Frodermann , G. Graef , M. Mitrovski , E. Mount , H. Petersen , M. Bleicher

With the string melting version of a multiphase transport(AMPT) model, we analyze the transverse momentum dependence of HBT radius $R_{\rm s}$ and the single-pion transverse angle distribution in central Au+Au collisions at…

核理论 · 物理学 2021-10-27 Hang Yang , Qichun Feng , Yanyv Ren , Jingbo Zhang , Lei Huo

In high-energy collisions, the spatio-temporal size of the particle production region can be measured using the Bose-Einstein correlations of identical bosons at low relative momentum. The source radii are typically extracted using two-pion…

核实验 · 物理学 2015-07-15 ALICE Collaboration

A significant fraction of the changes in momentum distributions induced by dissipative phenomena in the description of the fluid fireball created in ultrarelativistic heavy-ion collisions actually take place when the fluid turns into…

核理论 · 物理学 2014-07-22 Christian Lang , Nicolas Borghini

In this paper we present with full details a systematic quantification, on an even-by-event basis, of the hard probe response to the geometry and fluctuations of the hot QCD matter created in heavy ion collisions at both the Relativistic…

核理论 · 物理学 2013-07-16 Xilin Zhang , Jinfeng Liao

We discuss the consequence of global polarization of the produced quarks in non-central heavy-ion collisions on the spin alignment of vector mesons. We show that the alignment is quite different for different hadronization scenarios. These…

核理论 · 物理学 2014-11-18 Zuo-Tang Liang , Xin-Nian Wang

Recent data from heavy ion collisions at RHIC show unexpectedly large near-angle correlations that broaden longitudinally with increasing centrality. The amplitude of this ridge-like correlation rises rapidly, reaches a maximum, and then…

核理论 · 物理学 2015-05-27 Paul Sorensen , Boris Bolliet , Agnes Mocsy , Yadav Pandit , Navneet Pruthi

Measurements of anisotropic flow in heavy-ion collisions provide evidence for the creation of strongly interacting matter which appears to behave as an almost ideal fluid. Anisotropic flow signals the presence of multiple interactions and…

核实验 · 物理学 2015-05-28 Ante Bilandzic

The time evolution of pseudorapidity distributions of produced charged hadrons in d+Au collisions at sqrt(s_NN) = 200 GeV is investigated. Results of a nonequilibrium-statistical Relativistic Diffusion Model with three sources are compared…

高能物理 - 唯象学 · 物理学 2008-11-26 Georg Wolschin , Minoru Biyajima , Takuya Mizoguchi

Energy dependence of space-time parameters of pion emission region at freeze-out is studied for collisions of various ions and for all experimentally available energies. The using of femtoscopic radii scaled on the averaged radius of…

核实验 · 物理学 2016-06-22 V. A. Okorokov

In nuclear collisions at highest accessible LHC energies, often more than one dijet pairs deposit momentum into the deconfined expanding medium. With the help of 3+1 dimensional relativistic hydrodynamic simulation we show that this leads…

核理论 · 物理学 2015-07-03 Martin Schulc , Boris Tomasik

We develop a systematic framework for the study of the initial collision geometry fluctuations in relativistic heavy-ion collisions and investigate how they evolve through different stages of the fireball history and translate into final…

核理论 · 物理学 2010-12-28 Guang-You Qin , Hannah Petersen , Steffen A. Bass , Berndt Müller

In the paper energy dependence of femtoscopy characteristics of pion emission region at freeze-out is investigated for collisions of various ions and for all experimentally available energies. For the first time the normalized values of…

核实验 · 物理学 2016-05-17 V. A. Okorokov

The non-uniform longitudinal flow model (NUFM) propsed recently is extended to include also transverse flow. The resulting longitudinally non-uniform collective expansion model (NUCEM) is applied to the calculation of rapidity distribution…

高能物理 - 唯象学 · 物理学 2007-05-23 FENG Shengqin , LIU Feng , LIU Lianshou

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…

核实验 · 物理学 2019-08-14 Takafumi Niida

The influence of realistic interactions on the reaction dynamics in intermediate energy heavy ion collisions is investigated. The mean field in relativistic transport calculations is derived from microscopic Dirac-Brueckner (DB)…

核理论 · 物理学 2011-06-10 T. Gaitanos , C. Fuchs , H. H. Wolter

Bose-Einstein correlations and invariant momentum distributions are analyzed for longitudinally expanding finite systems, like jets in elementary particle collisions or systems created in high energy heavy ion reactions. Cross-term…

高能物理 - 唯象学 · 物理学 2008-02-03 T. Csorgo , B. Lorstad

A systematic study of HBT radii of pions, produced in heavy ion collisions in the intermediate energy regime (SPS), from an integrated (3+1)d Boltzmann+hydrodynamics approach is presented. The calculations in this hybrid approach,…

核理论 · 物理学 2009-04-02 Qingfeng Li , Jan Steinheimer , Hannah Petersen , Marcus Bleicher , Horst Stoecker

The framework of anisotropic hydrodynamics is used in 3+1 dimensions to analyze behavior of matter produced in ultra-relativistic heavy-ion collisions. The model predictions for the hadronic transverse-momentum spectra, directed and…

核理论 · 物理学 2015-06-05 Wojciech Florkowski , Radoslaw Ryblewski

We investigate identical pion HBT intensity interferometry for central Au+Au collisions at 1.23A GeV. High-statistics $\pi^-\pi^-$ and $\pi^+\pi^+$ data are measured with HADES at SIS18/GSI. The radius parameters, derived from the…

核实验 · 物理学 2019-07-02 J. Adamczewski-Musch , O. Arnold , C. Behnke , A. Belounnas , A. Belyaev , J. C. Berger-Chen , J. Biernat , A. Blanco , C. Blume , M. Böhmer , P. Bordalo , S. Chernenko , L. Chlad , C. Deveaux , J. Dreyer , A. Dybczak , E. Epple , L. Fabbietti , O. Fateev , P. Filip , P. Fonte , C. Franco , J. Friese , I. Fröhlich , T. Galatyuk , J. A. Garzon , R. Gernhäuser , M. Golubeva , R. Greifenhagen , F. Guber , M. Gumberidze , S. Harabasz , T. Heinz , T. Hennino , S. Hlavac , C. Höhne , R. Holzmann , A. Ierusalimov , A. Ivashkin , B. Kämpfer , T. Karavicheva , B. Kardan , I. Koenig , W. Koenig , B. W. Kolb , G. Korcyl , G. Kornakov , R. Kotte , W. Kühn , A. Kugler , T. Kunz , A. Kurepin , A. Kurilkin , P. Kurilkin , V. Ladygin , R. Lalik , K. Lapidus , A. Lebedev , L. Lopes , M. Lorenz , T. Mahmoud , L. Maier , A. Mangiarotti , J. Markert , T. Matulewicz , S. Maurus , V. Metag , J. Michel , D. M. Mihaylov , S. Morozov , C. Müntz , R. Münzer , L. Naumann , K. N. Nowakowski , M. Palka , Y. Parpottas , V. Pechenov , O. Pechenova , O. Petukhov , K. Piasecki , J. Pietraszko , W. Przygoda , S. Ramos , B. Ramstein , A. Reshetin , P. Rodriguez-Ramos , P. Rosier , A. Rost , A. Sadovsky , P. Salabura , T. Scheib , H. Schuldes , E. Schwab , F. Scozzi , F. Seck , P. Sellheim , J. Siebenson , L. Silva , Yu. G. Sobolev , S. Spataro , H. Ströbele , J. Stroth , P. Strzempek , C. Sturm , O. Svoboda , M. Szala , P. Tlusty , M. Traxler , H. Tsertos , E. Usenko , V. Wagner , C. Wendisch , M. G. Wiebusch , J. Wirth , D. Wojcik , Y. Zanevsky , P. Zumbruch