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

Redamy Pérez-Ramos (1, 2) , Miguel-Angel Sanchis-Lozano , Edward K. Sarkisyan-Grinbaum

1 IPSA - Institut Polytechnique des Sciences Avancées
2 LPTHE - Laboratoire de Physique Théorique et Hautes Energies

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 the 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 in hadronic collisions at the LHC, show up providing a possible signature of new physics at future $e^{+}{e}^{-}$ colliders.

Mots clés: energy; high; angular correlation; long-range; correlation; new physics; signature; quantum chromodynamics; multiple production; annihilation; cascade; CERN LHC Coll; structure; rapidity; Monte Carlo

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]; Physique des Hautes Energies - Expérience [hep-ex]; Physique des Hautes Energies - Théorie [hep-th]

Redamy Pérez-Ramos, Miguel-Angel Sanchis-Lozano, Edward K. Sarkisyan-Grinbaum. Searching for hidden matter with long-range angular correlations at $e^+e^-$ colliders. Physical Review D, 2022, 105 (5), pp.053001. ⟨10.1103/PhysRevD.105.053001⟩. ⟨hal-03390355⟩