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Related papers: Multiplicity distributions in e+e- annihilation in…

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The nonresonant mechanism in the reactions $e^+\,e^-\to \pi^-\,p\,\bar{n}$ and $e^+\,e^-\to \pi^+\,n\,\bar{p}$ is investigated in frame of the one-photon exchange approximation. The description of the hadronic phase space and the invariant…

High Energy Physics - Phenomenology · Physics 2023-12-07 G. I. Gakh , M. I. Konchatnij , N. P. Merenkov , E. Tomasi-Gustafsson

Superposition of jets of different flavors as well as superposition of jets of different topologies describe well observed structures (shoulder, H_q oscillations) in e+e- annihilation. The analysis of similar effects seen in experimental…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Giovannini , R. Ugoccioni

Charged multiplicity distribution in a pseudo-rapidity window is formulated under the assumption that the charge conservation is satisfied in the full phase space. At first, we analyze measured charged particle multiplicity distributions in…

High Energy Physics - Phenomenology · Physics 2020-12-15 N. Suzuki , M. Biyajima , T. Mizoguchi

The solution of QCD equations for generating functions of multiplicity distributions reveals new peculiar features of cumulant moments oscillating as functions of their rank. This prediction is supported by experimental data on $e^{+}e^{-},…

High Energy Physics - Phenomenology · Physics 2009-09-25 I. M. Dremin

Results from the multiplicity distributions of inclusive photons and charged particles, scaling of particle multiplicities, event-by-event multiplicity fluctuations, and charged-neutral fluctuations in 158$\cdot A$ GeV Pb+Pb collisions are…

Nuclear Experiment · Physics 2009-11-07 Tapan K. Nayak

A short review of theoretical and experimental results on fragmentation in e^+e^- annihilation is presented. Starting with an introduction of the concept of fragmentation functions in e^+e^- annihilation, aspects of scaling violation,…

High Energy Physics - Phenomenology · Physics 2007-05-23 O. Biebel , P. Nason , B. R. Webber

In this work we show that the latest LHC data on multiplicity moments $C_2-C_5$ are well described by a two-step model in the form of a convolution of the Poisson distribution with energy-dependent source function. For the source function…

High Energy Physics - Phenomenology · Physics 2011-10-18 Michal Praszalowicz

Electric and magnetic fields of fractal distribution of charged particles are considered. The fractional integrals are used to describe fractal distribution. The fractional integrals are considered as approximations of integrals on…

Plasma Physics · Physics 2015-06-26 Vasily E. Tarasov

A detailed investigation of the theoretical ambiguities present in the QCD description of photon production in $e^+e^-$ annihilation is given. It is pointed out that in a well-defined perturbative analysis it is necessary to subtract the…

High Energy Physics - Phenomenology · Physics 2009-10-22 Zoltan Kunszt , Zoltán Trócsányi

The negative binomial distribution (NBD) has been theorized to express a scale-invariant property of many-body systems and has been consistently shown to outperform other statistical models in both describing the multiplicity of…

High Energy Physics - Phenomenology · Physics 2023-10-09 S. V. Tezlaf

Recently, the moments of multiplicity distributions in e+e- annihilation and the ratios H_q (cumulant over factorial moments K_q/F_q) have been determined both for the hadronic final state and for jets at variable resolution. These ratios…

High Energy Physics - Phenomenology · Physics 2007-05-23 Wolfgang Ochs

The solution of QCD equations for generating functions of {\it parton} multiplicity distributions reveals new peculiar features of cumulant moments oscillating as functions of their rank. It happens that experimental data on {\it hadron}…

High Energy Physics - Phenomenology · Physics 2007-05-23 I. M. Dremin

The experimental emission probabilities of complex fragments by low energy compound nuclei and their dependence upon energy and atomic number are compared to the transition state rates. Intermediate-mass-fragment multiplicity distributions…

Nuclear Experiment · Physics 2007-05-23 L. G. Moretto , R. Ghetti , K. X. Jing , L. Phair , K. Tso , G. J. Wozniak

We establish a connection between the distribution functions of quarks in spin-one hadrons and the helicity matrix for forward scattering of antiquarks off spin-one hadrons. From positivity of this matrix we obtain inequality relations…

High Energy Physics - Phenomenology · Physics 2009-11-07 A. Bacchetta , P. J. Mulders

New results on the low energy e+ e- annihilation into hadrons from Novosibirsk and Beijing are described. Implications of the new measurements for the evaluation of the hadronic contribution to the muon anomalous magnetic moment are…

High Energy Physics - Experiment · Physics 2009-11-07 S. I. Eidelman

We discuss the momentum distributions of inclusively produced particles in $e^+e^-$ annihilation. We show that the dependence of the position of the maxima of the $\xi=\ln(1/z)$ spectra on the mass of the produced particles follows…

High Energy Physics - Phenomenology · Physics 2010-02-17 C. Boros , J. T. Londergan , A. W. Thomas

Joint probability distributions of photon polarization correlations are computed, as well as those corresponding to the cases when only one of the photon's polarization is measured in $e^{+}e^{-}$ annihilation, in flight, in QED. This…

Quantum Physics · Physics 2007-05-23 N. Yongram , E. B. Manoukian

The main purpose of this paper is to discuss the link between forward-backward multiplicity correlations properties and the shape of the corresponding final charged particle multiplicity distribution in various classes of events in…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Giovannini , R. Ugoccioni

Multiplicity distributions of charged particles produced in the e^{+}e^{-} collisions at energies ranging from 14 to 91 GeV are studied using Tsallis q-statistics and the recently proposed Weibull distribution functions, in both restricted…

High Energy Physics - Phenomenology · Physics 2018-02-16 S. Sharma , M. Kaur , S. Thakur

A refinement of the multinomial distribution is presented where the number of inversions in the sequence of outcomes is tallied. This refinement of the multinomial distribution is its joint distribution with the number of inversions in the…

Probability · Mathematics 2025-08-19 Andrew V. Sills