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相关论文: Initial state azimuthal anisotropies in small coll…

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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

Besides earlier predictions based on both phenomenological models and modern microscopic many-body theories, circumstantial evidence was recently found for a reduced kinetic symmetry energy of isospin-asymmetric nucleonic matter compared to…

核理论 · 物理学 2015-04-14 Bao-An Li , Wen-Jun Guo , Zhaozhong Shi

We measured the first azimuthal distributions of triple--differential cross sections of neutrons emitted in heavy-ion collisions, and compared their maximum azimuthal anisotropy ratios with Boltzmann--Uehling--Uhlenbeck (BUU) calculations…

We show that Bose-Einstein correlations of identical particles in hadron and nucleus high energy collisions, lead to long range rapidity correlations in the azimuthal angle. These correlations are inherent features of the CGC/saturation…

高能物理 - 唯象学 · 物理学 2017-02-15 E. Gotsman , E. Levin , U. Maor

The behaviour of a strongly-magnetized collisional electron-positron plasma which is optically thin to cyclotron radiation is considered, and the distribution functions accessible to it on the various timescales in the system are…

等离子体物理 · 物理学 2021-02-17 Daniel Kennedy , Per Helander

A large anti-correlation signal between elliptic flow $v_2$ and average transverse momentum $[p_{\mathrm{T}}]$ was recently measured in small collision systems, consistent with a final-state hydrodynamic response to the initial geometry.…

核理论 · 物理学 2022-01-04 Chunjian Zhang , Arabinda Behera , Somadutta Bhatta , Jiangyong Jia

In the framework of mean-field based transport approaches, we discuss recent results concerning heavy ion reactions between charge asymmetric systems, from low up to intermediate energies. We focus on isospin sensitive observables, aiming…

核理论 · 物理学 2015-06-18 Maria Colonna , Virgil Baran , Massimo Di Toro

In order to trace the initial interaction in ultra-relativistic heavy ion collision in all azimuthal directions, two azimuthal multiplicity-correlation patterns -- neighboring and fixed-to-arbitrary angular-bin correlation patterns -- are…

核理论 · 物理学 2009-09-17 Meijuan Wang , Lianshou Liu , Yuanfang Wu

The notion of the "size" of nucleons and their constituents plays a pivotal role in the current paradigm of the formation and the fluctuations of the quark-gluon plasma produced in high-energy nuclear collision experiments. We report on…

核理论 · 物理学 2022-02-09 Giuliano Giacalone , Björn Schenke , Chun Shen

I investigate the correlation between spatial and flow anisotropy in determining the elliptic flow and azimuthal dependence of the HBT correlation radii in non-central nuclear collisions. It is shown that the correlation radii are in most…

核理论 · 物理学 2015-06-26 Boris Tomasik

Particle interactions are key elements of many dynamical systems. In the context of systems described by a Boltzmann equation, such interactions may be described by a collision integral, a multidimensional integral over the momentum-phase…

高能天体物理现象 · 物理学 2024-09-27 Christopher N. Everett , Garret Cotter

This paper investigates the relationship between initial spatial anisotropy and final state momentum anisotropy in heavy ion collisions through the analysis of elliptic flow ($v_2$) as a function of transverse momentum ($p_T$). Building…

核理论 · 物理学 2024-12-10 Mira Varma , Oliver Baker

Parton energy loss inside a dense medium leads to the suppression of large $p_T$ hadrons and can also cause azimuthal anisotropy of hadron spectra at large transverse momentum in non-central high-energy heavy-ion collisions. Such azimuthal…

核理论 · 物理学 2014-11-18 Xin-Nian Wang

Synchrotron photon spectrum in heavy-ion collisions is computed taking into account the spatial and temporal structure of magnetic field. It is found that a significant fraction of photon excess in heavy-ion collisions in the region…

核理论 · 物理学 2015-06-22 Kirill Tuchin

The presence of $\alpha$-clustered structure in the light nuclei produces different exotic shapes in nuclear structure studies at low energies. Recent phenomenological studies suggest that collision of heavy nuclei with $\alpha$-clustered…

核理论 · 物理学 2023-06-02 Pingal Dasgupta , Rupa Chatterjee , Guo-Liang Ma

The methods currently used to measure collective flow in nucleus--nucleus collisions assume that the only azimuthal correlations between particles are those arising from their correlation with the reaction plane. However, quantum HBT…

核理论 · 物理学 2009-10-31 Mai Dinh , Nicolas Borghini , Jean-Yves Ollitrault

In order to study further the long-range correlations ("ridge") observed recently in p+Pb collisions at sqrt(s_NN) =5.02 TeV, the second-order azimuthal anisotropy parameter of charged particles, v_2, has been measured with the cumulant…

高能物理 - 实验 · 物理学 2014-05-08 ATLAS Collaboration

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 investigate the survival rate of an initial momentum anisotropy (${v}_2^{ini}$), not spatial anisotropy, to the final state in a multi-phase transport (AMPT) model in Au+Au collisions at $\sqrt{s_{NN}}$=200~GeV. It is found that both the…

核理论 · 物理学 2015-11-25 Liang Zhang , Feng Liu , Fuqiang Wang

Correlation measurements imply that anisotropic flow in nuclear collisions includes a novel triangular component along with the more familiar elliptic-flow contribution. Triangular flow has been attributed to event-wise fluctuations in the…

核理论 · 物理学 2013-05-30 Sean Gavin , George Moschelli