期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 2, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP02(2015)165
关键词
Phenomenology of Large extra dimensions
资金
- Brazilian Ministry of Science, Technology and Innovation
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
We discuss the discovery potential of light-by-light scattering at the Large Hadron Collider (LHC), induced by the Standard Model (SM) and by new exotic charged particles. Our simulation relies on intact proton detection in the planned forward detectors of CMS and ATLAS. The full four-photon amplitudes generated by any electrically charged particles of spins 1/2 and 1, including the SM processes involving loops of leptons, quarks and W bosons are implemented in the Forward Physics Monte Carlo generator. Our method provides model-independent bounds on massive charged particles, only parametrized by the spin, mass and effective charge Q(eff) of the new particle. We find that a new charged vector (fermion) with Q(eff) = 4 can be discovered up to m = 700 GeV (m = 370 GeV) with an integrated luminosity of 300 fb(-1) at the LHC. We also discuss the sensitivities to neutral particles such as a strongly-interacting heavy dilaton and warped Kaluza-Klein gravitons, whose effects could be discovered for masses in the multi-TeV range.
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