Monte Carlo Study of TeV-Scale String Resonances in Photon-Jet Scattering

TL;DR

This paper introduces and validates a Monte Carlo event generator called STRINGS for simulating TeV-scale string resonances in photon-jet scattering at high-energy colliders, providing a tool for future experimental searches.

Contribution

The paper develops and validates the STRINGS Monte Carlo generator for simulating TeV-scale string resonances, including interfacing with Pythia and applying a correction factor for accurate resonance modeling.

Findings

STRINGS successfully simulates string resonances in proton-proton collisions.

A scaling factor of approximately 0.53 is necessary for accurate resonance reproduction.

Validated simulations at various string mass scales and collision energies.

Abstract

STRINGS is a Monte Carlo (MC) event generator for simulating the production and decay of first and second string resonances in proton-proton collisions. STRINGS can also interface with other programs such as Pythia using the Les Houches Accord to produce more accurate data. In this paper, we validate STRINGS for the simulation of 2-parton $\rightarrow$ $\gamma$-parton scattering events by comparing to previous literature. After validation, we produce MC samples of resonances using $M_s$ = {5.0,5.5,6.0,6.5,7.0} TeV at $\sqrt{s}$ = {13,13.6} TeV with STRINGS and Pythia and analyze the kinematic data. To accurately reproduce previous results close to resonance, it is necessary to introduce a scaling factor of $\approx$ 0.53. With this correction, the resonance structure is as expected.