Search for the Higgs Boson and beyond Standard Model Phenomena in CMS

Abstract

The standard model (SM) of high-energy particle physics has been very efficient in describing the experimental measurements up to now but one of its key prediction has not yet been observed: the Higgs boson, a scalar neutral particle, which is at the source of the electro-weak symmetry breaking and provides a mechanism for particles to acquire mass. We know, however, that the SM theory breaks at larger scales and some other issues are also left open such as the unification of couplings, hierarchy problem, dark matter issue and neutrino masses. Theories have been proposed that attempt to fix some of those issues such as supersymmetry (SUSY) or other beyond standard models (BSM) and are currently being under experimental research. The CMS experiment, a multi-purpose detector1) operating at the CERN LHC pp collider, has been designed to investigate for a wide range of physical phenomena. We will discuss in §§2 and 3, respectively, a selection of the latest Higgs and BSM searches, performed by the CMS collaboration with datasets of 1.0− 1.7 fb−1.