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相关论文: Multiplicity, Transverse Momentum, Forward-Backwar…

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In the presence of strong clustering, low-resolution surveys measure the summed contributions of groups of sources within the beam. The counts of bright intensity peaks are therefore shifted to higher flux levels compared to the counts of…

天体物理学 · 物理学 2009-11-10 M. Negrello , J. Gonzalez-Nuevo , M. Magliocchetti , L. Moscardini , G. De Zotti , L. Toffolatti , L. Danese

We discuss the recently measured event-by-event multiplicity fluctuations in relativistic heavy-ion collisions. It is shown that the observed non-monotonic behaviour of the scaled variance of multiplicity distribution as a function of…

高能物理 - 唯象学 · 物理学 2020-02-19 Maciej Rybczynski , Zbigniew Wlodarczyk

We show that scale-scale correlations are a generic feature of slow-roll inflation theories. These correlations result from the long-time tails characteristic of the time dependent correlations because the long wavelength density…

天体物理学 · 物理学 2009-10-31 Li-Zhi Fang , Wolung Lee , Jesús Pando

The scaling behaviour of the diffraction intensity near the origin is investigated for (partially) ordered systems, with an emphasis on illustrative, rigorous results. This is an established method to detect and quantify the fluctuation…

度量几何 · 数学 2021-06-15 Michael Baake , Uwe Grimm

We report on two-particle charge-dependent correlations in pp, p-Pb, and Pb-Pb collisions as a function of the pseudorapidity and azimuthal angle difference, $\mathrm{\Delta}\eta$ and $\mathrm{\Delta}\varphi$ respectively. These…

核实验 · 物理学 2016-03-25 ALICE Collaboration

In this thesis, we focus on the fluctuations and correlations of the collective observables such as the mean transverse momentum per particle ($[p_T]$) and harmonic flow coefficients ($v_n$) of particles produced in the ultrarelativistic…

核理论 · 物理学 2025-05-20 Rupam Samanta

It is widely believed that fluctuations in transaction volume, as reflected in the number of transactions and to a lesser extent their size, are the main cause of clustered volatility. Under this view bursts of rapid or slow price diffusion…

物理与社会 · 物理学 2008-12-02 Laszlo Gillemot , J. Doyne Farmer , Fabrizio Lillo

Fluctuation-dominated phase ordering refers to a steady state in which the magnitude of long-range order varies strongly owing to fluctuations, and to the associated coarsening phenomena during the approach to steady state. Strong…

统计力学 · 物理学 2023-07-21 Mustansir Barma

Strong correlations between the number of emitted jets and their average transverse momentum are found for the events resulting from the exchange of a single BFKL pomeron. transverse momentum are found for the events resulting from the…

高能物理 - 唯象学 · 物理学 2009-11-07 M. A. Braun , C. Merino , G. Rodriguez

It is shown that that Gaussian fluctuations of the string tension can account for the "thermal" distribution of transverse mass of particles created in decay of a colour string.

高能物理 - 唯象学 · 物理学 2009-10-31 A. Bialas

Cumulant oscillations, or $H_q$ moment oscillations, appear if the KNO multiparticle distribution decreases at large z, $z\equiv n/ <n>$, faster than the exponential, $exp(-D z^\mu)$, with $\mu > 1$. In nucleus-nucleus interactions this…

高能物理 - 唯象学 · 物理学 2009-10-30 J. Dias de Deus , C. Pajares , C. A. Salgado

We study the statistical fluctuations (such as the variance) of causal set quantities, with particular focus on the causal set action. To facilitate calculating such fluctuations, we develop tools to account for correlations between causal…

广义相对论与量子宇宙学 · 物理学 2025-02-11 Heidar Moradi , Yasaman K. Yazdi , Miguel Zilhão

Multiplicity fluctuations play a crucial role in relativistic heavy-ion collisions. In this work, we explore how the multiplicity fluctuations can be effectively suppressed in the measurement of particle correlations. In particular, through…

核理论 · 物理学 2023-09-12 Chong Ye , Hong-Hao Ma , Dan Wen , Philipe Mota , Wei-Liang Qian , Rui-Hong Yue

N-Point Correlation Functions, usually with N = 2, 3, and their Fourier-space analogs power spectrum and bispectrum, are major tools used in cosmology to capture the clustering of large-scale structure. We outline how the clustering these…

宇宙学与河外天体物理 · 物理学 2025-08-12 Zachary Slepian , Farshad Kamalinejad , Alessandro Greco

We study the spectrum of primordial fluctuations in theories where the inflaton field is coupled to massless fields and/or to itself. Conformally invariant theories generically predict a scale invariant spectrum. Scales entering the theory…

广义相对论与量子宇宙学 · 物理学 2014-11-17 Esteban A. Calzetta , Sonia Gonorazky

In AA collisions fusion and percolation of colour strings is studied at fixed rapidity $y$. Distribution of strings in rapidity is obtained from the observed rapidity spectra in pp collisions. For $y$-dependence of multiplicities in Au-Au…

高能物理 - 唯象学 · 物理学 2008-11-26 M. A. Braun , C. Pajares

We study in detail the properties of clusters of ultra high energy cosmic ray events, looking in particular to their angular correlation function, to the relative frequency of clusters with different multiplicities (e.g. doublets vs.…

天体物理学 · 物理学 2009-11-10 Diego Harari , Silvia Mollerach , Esteban Roulet

Turbulence, namely, irregular fluctuations in space and time characterize fluid flows in general and atmospheric flows in particular.The irregular,i.e., nonlinear space-time fluctuations on all scales contribute to the unpredictable nature…

综合物理 · 物理学 2007-05-23 J. S. Pethkar , A. M. Selvam

In the Cont-Bouchaud model [cond-mat/9712318] of stock markets, percolation clusters act as buying or selling investors and their statistics controls that of the price variations. Rather than fixing the concentration controlling each…

统计力学 · 物理学 2009-10-31 Dietrich Stauffer , D. Sornette

Multiplicity fluctuations and correlations are calculated within thermalized relativistic ideal quantum gases. These are shown to be sensitive to the choice of statistical ensemble as well as to the choice of acceptance window in momentum…

核理论 · 物理学 2009-08-20 Michael Hauer , Giorgio Torrieri , Spencer Wheaton