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Azimuthal anisotropies in heavy-ion collisions are conventionally interpreted as signatures of hydrodynamic flow. We demonstrate that in peripheral collisions, a significant $\cos 2\phi$ asymmetry in the decay leptons of coherently…

高能物理 - 唯象学 · 物理学 2025-11-25 Ding Yu Shao , Han-Qing Yu , Cheng Zhang , Jian Zhou

We calculate the secondary anisotropies in the CMB produced by inhomogeneous reionization from simulations in which the effects of radiative and stellar feedback effects on galaxy formation have been included. This allows to…

天体物理学 · 物理学 2009-10-31 M. Bruscoli , A. Ferrara , R. Fabbri , B. Ciardi

In heavy-ion collisions, quark-gluon plasma is likely to be produced with sizable initial pressure anisotropy, which may leave an imprint on electromagnetic observables. In order to model a strongly coupled anisotropic plasma, we use the…

高能物理 - 理论 · 物理学 2015-05-28 Anton Rebhan , Dominik Steineder

Measurements are presented by the CMS Collaboration at the Large Hadron Collider (LHC) of the higher-order harmonic coefficients that describe the azimuthal anisotropy of charged particles emitted in sqrt(s[NN]) = 2.76 TeV PbPb collisions.…

核实验 · 物理学 2014-04-21 CMS Collaboration

Nonlinear response coefficients of higher-order anisotropy harmonics for charged particles are measured in PbPb collisions at 2.76 and 5.02 TeV as a function of transverse momentum and collision centrality. The nonlinear response…

核实验 · 物理学 2017-09-01 Jovan Milosevic

Two particle azimuthal correlations are studied in 4.2A GeV C+Ta collisions observed with the 2-m propane bubble chamber exposed at JINR Dubna Synchrophasotron. The correlations are analyzed both for protons and negative pions, and their…

核实验 · 物理学 2008-11-26 Lj. Simic , O. Jotanovic , J. Milosevic , I. Mendas

A brief overview is given of some recent advances in charged-composite particle scattering. On the theoretical side, I address the three-charged particle wave function asymptotics, the nonperturbative investigation of the long-range…

核理论 · 物理学 2007-05-23 Erwin O. Alt

Within the dense-dilute Color Glass Condensate approach, and using the Golec-Biernat-Wuesthoff model for the dipole scattering amplitude, we calculate $v_2^2$ as well as the correlations between $v_2^2$ and both the total multiplicity and…

高能物理 - 唯象学 · 物理学 2021-07-21 Tolga Altinoluk , Néstor Armesto , Alex Kovner , Michael Lublinsky , Vladimir V. Skokov

We discuss the sensitivity of the three-particle azimuthal cumulant method for a search and study of conical emission in central relativistic $A+A $ collisions. Our study is based on a multi-component Monte Carlo model which include flow…

核实验 · 物理学 2009-12-31 Claude Pruneau

An analysis of high pT hadron spectra associated with high pT $\pi^0$ particles in p+p collisions at s**(1/2) = 200-GeV is presented. The shape of the azimuthal angular correlation is used to determine the value of partonic intrinsic…

高能物理 - 实验 · 物理学 2008-11-26 Jan Rak

Azimuthal modulations in lepton and heavy-quark pair production in ultraperipheral collisions (UPCs) of highly charged ions are investigated. The modulations in the azimuthal angles of the sum and difference of the transverse momenta of the…

高能物理 - 唯象学 · 物理学 2025-01-28 Daniël Boer , Luca Maxia , Cristian Pisano

Large azimuthal quadrupole and octupole asymmetries have recently been found in p+Pb collisions at the LHC. We argue that these might arise from a projectile dipole scattering off fluctuations in the target with a size on the order of the…

高能物理 - 唯象学 · 物理学 2014-05-14 Jorge Noronha , Adrian Dumitru

Fluid dynamical calculations with QGP showed a softening of the directed flow while with hadronic matter this effect is absent. On the other hand, we indicated that a third flow component shows up in the reaction plane as an enhanced…

高能物理 - 唯象学 · 物理学 2009-11-10 L. P. Csernai , A. Anderlik , Cs. Anderlik , V. K. Magas , E. Molnar , A. Nyiri , D. Roehrich , K. Tamosiunas

Interactions of high momentum partons with Quark-Gluon Plasma created in relativistic heavy-ion collisions provide an excellent tomography tool for this new form of matter. Recent measurements for charged hadrons and unidentified jets at…

核理论 · 物理学 2017-11-08 Magdalena Djordjevic

We report the measurement of first (\textit{n} = 1) and higher order(\textit{n} = 2-5) harmonic coefficients ($v_{n}$) of the azimuthal anisotropy in the distribution of the particles produced in Au+Au collisions at $\sqrt{s_{NN}}$ =200 GeV…

核实验 · 物理学 2013-06-21 Yadav Pandit

Studies of $CP$ violation and anomalous couplings of the Higgs boson to vector bosons and fermions are presented. The data were acquired by the CMS experiment at the LHC and correspond to an integrated luminosity of 137 fb$^{-1}$ at a…

高能物理 - 实验 · 物理学 2021-09-22 CMS Collaboration

We consider forward inclusive production of several quarks in the high energy p-A collisions in the CGC formalism. For three particle production we provide a complete expression in terms of multipole scattering amplitudes on the nucleus and…

高能物理 - 唯象学 · 物理学 2018-04-18 Alex Kovner , Amir H. Rezaeian

We report the measurement of first (\textit {n} = 1) and higher order(\textit{n} = 2-5) harmonic coefficients ($v_{n}$) of the azimuthal anisotropy in the distribution of the particles produced in U+U collisions at $\sqrt{s_{NN}}$ =193 GeV,…

核实验 · 物理学 2014-09-24 Yadav Pandit

We show that tensor products of $k$ gradients of harmonic functions, with $k$ at least three, are dense in $C(\overline{\Omega})$, for any bounded domain $\Omega$ in dimension 3 or higher. The bulk of the argument consists in showing that…

偏微分方程分析 · 数学 2023-05-10 Cătălin I. Cârstea , Ali Feizmohammadi

Charmonium production is highly sensitive to the hot and dense medium created in (ultra)-relativistic heavy-ion collisions, known as the Quark-Gluon Plasma (QGP). Measurements of the J/$\psi$ production serve as important tools for studying…

核实验 · 物理学 2020-10-19 Ingrid McKibben Lofnes