120 likes | 241 Vues
This study focuses on the significance of b-tagging and Mbb resolution in Run I searches for light Higgs bosons (mass < 130 GeV) and their interactions with gravity through KK graviton emissions. We examine the Feynman rules governing vector bosons and KK graviton exchanges, as well as the impact of anomalous Zgg couplings. Our analysis includes two real events from CDF data and graviton simulations, posing the challenge of distinguishing between simulated and actual graviton events. This research is crucial for understanding Higgs particle behavior in the context of Standard Model predictions.
E N D
WH ZH SM Hoiggs signatures • Standard Model channels M(H) < 130 GeV Run I searches: b-tagging and Mbb resolution are critical for a ligth Higgs
Single Jet + KK Graviton Emission The Rules Vector Boson + KK Graviton Emission KK Graviton Exchange [Find the Feynman rules @ Han, Lykken, Zhang, PR D59 (1999) 105006]
(anomalous Zgg couplings analyses,WW x-section,Zg) e+e- >gg,VV Standard Model Interference Term Gravity Giudice, Rattazzi, Wells, Nucl. Phys. B544, 3 (1999) and corrected version, hep-ph/9811291] Agashe, Deshpande, Phys. Lett. B456, 60 (1999)
Two events are real CDF data and one is graviton simulation; Can you pick the graviton?
Two events are graviton simulation and one is real CDF data: Can you pick the gravitons?