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Searching for hidden matter with long-range angular correlations at $e^+e^-$ colliders

Abstract : The analysis of azimuthal correlations in multiparticle production can be useful to uncover the existence of new physics beyond the Standard Model, e.g., Hidden Valley, in $e^+e^-$ annihilation at high energies. In this paper, based on previous theoretical studies and using PYTHIA8 event generator, it is found that both azimuthal and rapidity long-range correlations are enhanced due to the presence of a new stage of matter on top of the QCD partonic cascade. Ridge structures, similar to those observed at the LHC, show up providing a possible signature of new physics at future $e^+e^-$ colliders.
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https://hal.archives-ouvertes.fr/hal-03390355
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Submitted on : Thursday, October 21, 2021 - 12:28:19 PM
Last modification on : Monday, December 6, 2021 - 4:22:02 PM

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Redamy Pérez-Ramos, Miguel-Angel Sanchis-Lozano, Edward K. Sarkisyan-Grinbaum. Searching for hidden matter with long-range angular correlations at $e^+e^-$ colliders. 2021. ⟨hal-03390355⟩

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