Measurement of charged particle multiplicity distributions in DIS at HERA and its implication to entanglement entropy of partons: H1 Collaboration



Andreev, V, Baghdasaryan, A, Baty, A, Begzsuren, K, Belousov, A, Bolz, A, Boudry, V, Brandt, G, Britzger, D, Buniatyan, A
et al (show 129 more authors) (2021) Measurement of charged particle multiplicity distributions in DIS at HERA and its implication to entanglement entropy of partons: H1 Collaboration. EUROPEAN PHYSICAL JOURNAL C, 81 (3). 212-.

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Abstract

<jats:title>Abstract</jats:title><jats:p>Charged particle multiplicity distributions in positron-proton deep inelastic scattering at a centre-of-mass energy <jats:inline-formula><jats:alternatives><jats:tex-math>$$\sqrt{s}=319$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>319</mml:mn> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula> GeV are measured. The data are collected with the H1 detector at HERA corresponding to an integrated luminosity of 136  pb<jats:inline-formula><jats:alternatives><jats:tex-math>$$^{-1}$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow /> <mml:mrow> <mml:mo>-</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msup> </mml:math></jats:alternatives></jats:inline-formula>. Charged particle multiplicities are measured as a function of photon virtuality <jats:inline-formula><jats:alternatives><jats:tex-math>$$Q^2$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>Q</mml:mi> <mml:mn>2</mml:mn> </mml:msup> </mml:math></jats:alternatives></jats:inline-formula>, inelasticity <jats:italic>y</jats:italic> and pseudorapidity <jats:inline-formula><jats:alternatives><jats:tex-math>$$\eta $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>η</mml:mi> </mml:math></jats:alternatives></jats:inline-formula> 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 <jats:inline-formula><jats:alternatives><jats:tex-math>$$Q^2$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>Q</mml:mi> <mml:mn>2</mml:mn> </mml:msup> </mml:math></jats:alternatives></jats:inline-formula>   and the Bjorken variable <jats:inline-formula><jats:alternatives><jats:tex-math>$$x_{\mathrm{bj}}$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>x</mml:mi> <mml:mi>bj</mml:mi> </mml:msub> </mml:math></jats:alternatives></jats:inline-formula> are converted to the hadron entropy <jats:inline-formula><jats:alternatives><jats:tex-math>$$S_{\mathrm{hadron}}$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>S</mml:mi> <mml:mi>hadron</mml:mi> </mml:msub> </mml:math></jats:alternatives></jats:inline-formula>, and predictions from a quantum entanglement model are tested.</jats:p>

Item Type: Article
Uncontrolled Keywords: 5106 Nuclear and Plasma Physics, 5107 Particle and High Energy Physics, 51 Physical Sciences
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 16 Dec 2021 13:20
Last Modified: 21 Jun 2024 02:55
DOI: 10.1140/epjc/s10052-021-08896-1
Open Access URL: https://link.springer.com/article/10.1140%2Fepjc%2...
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3145494