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Measurement of charged particle multiplicity distributions in DIS at HERA and its implication to entanglement entropy of partons
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abstract
Charged particle multiplicity distributions in positron-proton deep inelastic scattering at a centre-of-mass energy $\sqrt{s}=319$ GeV are measured. The data are collected with the H1 detector at HERA corresponding to an integrated luminosity of $136$ pb${}^{-1}$. Charged particle multiplicities are measured as a function of photon virtuality $Q^2$, inelasticity $y$ and pseudorapidity $\eta$ in the laboratory and the hadronic centre-of-mass frames. Predictions from different Monte Carlo models are compared to the data. The first and second moments of the multiplicity distributions are determined and the KNO scaling behaviour is investigated. The multiplicity distributions as a function of $Q^2$ and the Bjorken variable $x_{\rm Bj}$ are converted to the hadron entropy $S_{\rm hadron}$, and predictions from a quantum entanglement model are tested.
Forward citations
Cited by 3 Pith papers
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Higher-order local constraints from reciprocal symmetry and entanglement entropy of charged-particle multiplicity distributions in $pp$ collisions
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Investigating QCD Dynamical Entropy in high-energy nuclear collisions
Using geometric scaling and Glauber-Gribov nuclear gluon distributions, the authors find that the QCD dynamical entropy in proton-nucleus collisions is essentially independent of the atomic mass number A, while the en...
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Charged particle multiplicity distributions derived from the Principle of Maximal Entropy
The paper claims charged particle multiplicity distributions follow from maximizing Shannon entropy with a fixed mean, yielding exponential tails and, after Poisson-Gamma mixing, the negative binomial distribution.
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