Search for Higgs bosons of the Universal Extra Dimensions at the Large Hadron Collider

Understand

The Higgs sector of the Universal Extra Dimensions (UED) has a rather involved setup.

• With one extra space dimension, the main ingredients to the construct are the higher Kaluza-Klein (KK) excitations of the Standard Model Higgs boson and the fifth components of the gauge fields which on compactification appear as scalar degrees of freedom and can mix with the former thus leading to physical KK-Higgs states of the scenario.
• In this work, we explore in detail the phenomenology of such a Higgs sector of the UED with the Large Hadron Collider (LHC) in focus.
• We work out relevant decay branching fractions involving the KK-Higgs excitations.