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相关论文: Lambda-proton correlations in relativistic heavy i…

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We investigate what conditions allow us to extract the relative distribution of freeze-out space and time points in an arbitrary reference frame using tomography and source imaging. The source function may be extracted from the two-particle…

核理论 · 物理学 2007-05-23 David A. Brown

This article gives an overview of recent highlights from experimental measurements of heavy-ion collisions at ultra-relativistic energies: Measurements of electroweak probes constrain both the initial collision geometry and the nuclear…

核实验 · 物理学 2020-12-17 Yvonne Pachmayer

Hard-jet correlations probe parton energy loss and the microscopic structure of the quark-gluon plasma formed in ultra-relativistic heavy-ion collisions. The correlation of high-$p_\mathrm{T}$ jets with other jets, hadrons, or electroweak…

核实验 · 物理学 2025-05-02 Riccardo Longo

The methods allowing to extract the coherent component of pion emission conditioned by the formation of a quasi-classical pion source in heavy ion collisions are suggested. They exploit a nontrivial modification of the quantum statistical…

核理论 · 物理学 2009-11-07 S. V. Akkelin , R. Lednicky , Yu. M. Sinyukov

Two-particle correlations are presented for K$^0_\mathrm{S}$, $\Lambda$, and $\overline\Lambda$ strange hadrons as a function of relative momentum in lead-lead collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV. The dataset…

核实验 · 物理学 2024-09-10 CMS Collaboration

We compute the Lambda and anti-Lambda global polarization in semi-central heavy-ion collisions modeling the source as consisting of a high-density core and a less dense corona. We show that when more Lambdas than anti-Lambdas are produced…

On the basis of the $p\Xi^-$ interaction extracted from (2+1)-flavor lattice QCD simulations at the physical point, the momentum correlation of $p$ and $\Xi^-$ produced in relativistic heavy ion collisions is evaluated. $C_{\rm SL}(Q)$…

核理论 · 物理学 2018-03-14 Tetsuo Hatsuda , Kenji Morita , Akira Ohnishi , Kenji Sasaki

Two-particle correlations are a widely used tool for studying relativistic nuclear collisions. Multiplicity fluctuations comparing charge and particle species have been studied as a possible signal for Quark-Gluon Plasma (QGP) and the QCD…

The novel phenomena observed in particle angular correlations are reviewed. They include the double-peak away-side azimuthal correlations in relativistic heavy-ion collisions and the long-range pseudorapidity near-side (ridge) correlations…

核实验 · 物理学 2013-11-19 Fuqiang Wang

We argue that the event-by-event fluctuation of the proton number is a meaningful and promising observable for the purpose of detecting the QCD critical end-point in heavy-ion collision experiments. The long range fluctuation of the order…

高能物理 - 唯象学 · 物理学 2009-11-10 Y. Hatta , M. A. Stephanov

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…

核理论 · 物理学 2009-10-31 Hiroki Nakamura , Ryoichi Seki

The two-proton correlation function at midrapidity from Pb+Pb central collisions at 158 AGeV has been measured by the NA49 experiment. The results are compared to model predictions from static thermal Gaussian proton source distributions…

核实验 · 物理学 2008-11-26 H. Appelshauser , NA49 Collaboration

It is shown that the inclusion of hadronic interactions, and in particular nuclear potentials, in simulations of heavy ion collisions at the SPS energy range can lead to obvious correlations of protons. These correlations contribute…

核理论 · 物理学 2022-03-24 Pengcheng Li , Yongjia Wang , Jan Steinheimer , Qingfeng Li , Hongfei Zhang

Based on the initial state geometrical symmetry for collisions between two identical heavy ions at high energy, the general form for the one- and two-particle azimuthal distributions is deduced. Relation between these distributions and the…

核理论 · 物理学 2018-02-14 G. L. Li , C. B. Yang , D. M. Zhou

Measurements of particles emitted from collisions of heavy ions at relativistic energies show evidence for temperature-fluctuations on the freeze-out surface of the expanding fireball. These can be understood as remnants of the density…

高能物理 - 唯象学 · 物理学 2010-10-04 Agnes Mocsy , Paul Sorensen

A possible use of forward proton tagging detectors at the LHC in the context of heavy ion interactions is discussed. It is shown that signals registered in such detectors are sensitive to the geometry of the collision. A method of the…

高能物理 - 实验 · 物理学 2020-11-03 Janusz J. Chwastowski , Krzysztof Cieśla , Rafał Staszewski , Piotr Babiarz

With the help of transport and statistical models, we find that the ratios of higher net-proton cumulants measured at RHIC are dominated by the statistical fluctuations. Future measurements should focus on the dynamical fluctuations, which…

核理论 · 物理学 2011-01-06 Chen Lizhu , Pan Xue , Xiong Fengbo , Li Lin , Li Na , Li Zhiming , Gang Wang , Wu Yuanfang

The two-particle momentum correlation between the Omega-baryon ($\Omega$) and the $^{4}He (\alpha) $ in high-energy heavy ion collisions is explored. Such correlations as an alternative source of information can help us further understand…

核理论 · 物理学 2025-02-10 Faisal Etminan

The properties of $\gamma$--jet pairs emitted in heavy-ion collisions provide an accurate mean to perform a tomographic measurement of the medium created in the collision through the study of the medium modified jet properties. The idea is…

高能物理 - 实验 · 物理学 2019-08-13 Yaxian Mao

Heavy flavor production is important in heavy ion collisions to study both cold and hot nuclear matter effects. The LHCb experiment can make unique contribution to heavy ion physics, owing to the full particle identification of the detector…

高能物理 - 实验 · 物理学 2016-06-09 Yanxi Zhang