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相关论文: The Two-Point Angular Correlation Function and BAT…

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Angular correlations between unidentified charged trigger ($t$) and associated ($a$) particles are measured by the ALICE experiment in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV for transverse momenta $0.25 < p_{T}^{t,\, a} < 15$…

核实验 · 物理学 2017-09-28 ALICE Collaboration

We use the two-point correlation function of the extrema points (peaks and valleys) in the COBE Differential Microwave Radiometers (DMR) 2-year sky maps as a test for non-Gaussian temperature distribution in the cosmic microwave background…

天体物理学 · 物理学 2011-05-10 A. Kogut , A. J. Banday , C. L. Bennett , G. Hinshaw , P. M. Lubin , G. F. Smoot

A theoretical formulation for the two-point correlation function on a light-cone is developed in the redshift space. On the basis of the previous work by Yamamoto & Suto (1999), in which a theoretical formula for the two-point correlation…

天体物理学 · 物理学 2009-10-31 Hiroaki Nishioka , Kazuhiro Yamamoto

A newly developed observable for correlations between symmetry planes, which characterize the direction of the anisotropic emission of produced particles, is measured in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV with ALICE. This…

核实验 · 物理学 2023-10-10 ALICE Collaboration

The Bipolar Spherical Harmonics (BipoSH) form a natural basis to study the CMB two point correlation function in a non-statistically isotropic (non-SI) universe. The coefficients of expansion in this basis are a generalisation of the well…

宇宙学与河外天体物理 · 物理学 2015-06-30 Moumita Aich , Aditya Rotti , Tarun Souradeep

We compute the angular power spectrum C_l of the BATSE 3B catalog, and find no evidence for clustering on any scale. These constraints bridge the entire range from small scales, probing source clustering and repetition, to large scales…

天体物理学 · 物理学 2009-10-28 Max Tegmark , Dieter Hartmann , Michael Briggs , Charles Meegan

We investigate the weak gravitational lensing effect on the two-point correlation function of local maxima (hot spots) in the cosmic 21 cm fluctuation map. The intrinsic two-point function has a pronounced depression feature around the…

宇宙学与河外天体物理 · 物理学 2009-01-21 H. Tashiro , T. Futamase

We present a model for the intrinsic alignment contamination of the shear three-point correlation function and skewness of the mass aperture statistic using the tidal alignment and tidal torquing (TATT) formalism. We compute the intrinsic…

宇宙学与河外天体物理 · 物理学 2026-01-15 Rafael C. H. Gomes , Kyle Miller , Sunao Sugiyama , Jonathan Blazek , Thomas Bakx , Bhuvnesh Jain

Angular particle correlations are a powerful tool to study collective effects and in-medium jet modification as well as their interplay in the hot and dense medium produced in central heavy-ion collisions. We present measurements of…

核实验 · 物理学 2019-08-13 Jan Fiete Grosse-Oetringhaus

It is well understood that the studies of correlations between produced particles, the effects of coherence and chaoticity, an estimation of particle emitting source size play an important role in high energy physics [1]. First of all, we…

高能物理 - 唯象学 · 物理学 2010-05-04 G. A. Kozlov

A leading way to constrain physical theories from cosmological observations is to test their predictions for the angular clustering statistics of matter tracers, a technique that is set to become ever more central with the next generation…

宇宙学与河外天体物理 · 物理学 2023-07-17 Antón Baleato Lizancos , Martin White

We measure the angular two-point correlation and angular power spectrum from the NRAO VLA Sky Survey (NVSS) of radio galaxies. They are found to be consistent with the best-fit cosmological model from the Planck analysis, and with the…

宇宙学与河外天体物理 · 物理学 2016-06-29 Song Chen , Dominik J. Schwarz

The Sloan Digital Sky Survey is one of the first multicolor photometric and spectroscopic surveys designed to measure the statistical properties of galaxies within the local Universe. In this Letter we present some of the initial results on…

Galaxy redshift surveys are subject to incompleteness and inhomogeneous sampling due to the various constraints inherent to spectroscopic observations. This can introduce systematic errors on the summary statistics of interest, which need…

The measurement of large scale patterns or anisotropies in the arrival direction of high energy cosmic rays is an important step towards the understanding of their origin. Such measurements rely on an accurate estimation of the detector…

天体物理学 · 物理学 2009-06-23 E. M. Santos , C. Bonifazi , A. Letessier-Selvon

We present an algorithm enabling computation of the anisotropic redshift-space galaxy 3-point correlation function (3PCF) scaling as $N^2$, with $N$ the number of galaxies. Our previous work showed how to compute the isotropic 3PCF with…

宇宙学与河外天体物理 · 物理学 2018-05-16 Zachary Slepian , Daniel J. Eisenstein

We critically assess the impact of significant dipole and large-scale anisotropies on galaxy clustering signals, with a focus on radio continuum surveys. Our study reveals that these anisotropies -- resulting from intrinsic cosmological…

宇宙学与河外天体物理 · 物理学 2024-11-15 Prabhakar Tiwari

As well as the galaxy number density and peculiar velocity, the galaxy intrinsic alignment can be used to test the cosmic isotropy. We study distinctive impacts of the isotropy breaking on the configuration-space two-point correlation…

宇宙学与河外天体物理 · 物理学 2023-08-11 Maresuke Shiraishi , Teppei Okumura , Kazuyuki Akitsu

We compute the three-point temperature correlation function of the {\it COBE} Differential Microwave Radiometer (DMR) first-year sky maps to search for non-Gaussian temperature fluctuations. The level of fluctuations seen in the computed…

天体物理学 · 物理学 2009-10-22 G. Hinshaw , A. Kogut , K. M. Gorski , A. J. Banday , C. L. Bennett , C. Lineweaver , P. Lubin , G. F. Smoot , E. L. Wright

A generic, model-independent method for the analysis of the two-particle short-range correlations is presented, that can be utilized to describe e.g. Bose-Einstein (HBT or GGLP), statistical, dynamical or other short-range correlation…

高能物理 - 唯象学 · 物理学 2009-10-31 T. Csorgo , A. T. Szerzo