Resummation schemes for High-Electric-Charge Objects leading to improved experimental mass limits

TY - JOUR

T1 - Resummation schemes for High-Electric-Charge Objects leading to improved experimental mass limits

AU - Alexandre, Jean

AU - Mavromatos, Nick E.

AU - Mitsou, Vasiliki A.

AU - Musumeci, Emanuela

N1 - 23 pages, 6 figures, 10 tables

PY - 2024/2/26

Y1 - 2024/2/26

N2 - High-electric-charge compact objects (HECOs) appear in several theoretical particle physics models beyond the Standard Model, and are actively searched for in current colliders, such as the Large Hadron Collider at CERN. In such searches, mass bounds of these objects have been placed, using Drell-Yan and photon-fusion processes at tree level so far. However, such mass-bound estimates are not reliable, given that, as a result of the large values of the electric charge of the HECO, perturbative quantum electrodynamics calculations break down. In this work, we perform a Dyson-Schwinger resummation scheme (as opposed to lattice strong-coupling approach), which makes the computation of the pertinent HECO-production cross sections reliable, thus allowing us to extract improved mass bounds for such objects from ATLAS and MoEDAL searches.

AB - High-electric-charge compact objects (HECOs) appear in several theoretical particle physics models beyond the Standard Model, and are actively searched for in current colliders, such as the Large Hadron Collider at CERN. In such searches, mass bounds of these objects have been placed, using Drell-Yan and photon-fusion processes at tree level so far. However, such mass-bound estimates are not reliable, given that, as a result of the large values of the electric charge of the HECO, perturbative quantum electrodynamics calculations break down. In this work, we perform a Dyson-Schwinger resummation scheme (as opposed to lattice strong-coupling approach), which makes the computation of the pertinent HECO-production cross sections reliable, thus allowing us to extract improved mass bounds for such objects from ATLAS and MoEDAL searches.

KW - hep-ph

KW - hep-ex

KW - hep-th

U2 - 0.1103/PhysRevD.109.036026

DO - 0.1103/PhysRevD.109.036026

M3 - Article

SN - 2470-0029

VL - 109

JO - Physical Review D

JF - Physical Review D

M1 - 036026

ER -