| Article | |
| Report number | arXiv:0708.0458 ; CERN-PH-TH-2007-116 ; IISC-CHEP-08-07 ; LAPTH-1195-07 |
| Title | Aspects of CP violation in the H ZZ coupling at the LHC |
| Author(s) | Godbole, Rohini M (Centre for High Energy Physics, Indian Institute of Science, Bangalore, India) ; Miller, David J (Dept. of Physics and Astronomy, University of Glasgow, Glasgow, U.K.) ; Muehlleitner, M Margarete (CERN ; Laboratoire d’Annecy-Le-Vieux de Physique Theorique, LAPTH, France) |
| Publication | 2007 |
| Imprint | 06 Aug 2007 |
| Number of pages | 35 |
| In: | JHEP 12 (2007) 031 |
| DOI | 10.1088/1126-6708/2007/12/031 |
| Subject category | Particle Physics - Phenomenology |
| Abstract | We examine the CP-conserving (CPC) and CP-violating (CPV) effects of a general $H ZZ$ coupling through a study of the process $H \ra Z Z^{(*)} \ra \ell^+ \ell^- \ell^{'+} \ell^{'-}$ at the LHC. We construct asymmetries that directly probe these couplings. Further, we present complete analytical formulae for the angular distributions of the decay leptons and for some of the asymmetries. Using these we have been able to identify new observables which can provide enhanced sensitivity to the CPV $H ZZ$ coupling. We also explore probing CP violation through shapes of distributions in different kinematic variables, which can be used for Higgs bosons with $m_H < 2 m_Z$ |
| Copyright/License | Open Access |
Corresponding record in: Inspire
Element opprettet 2007-08-07, sist endret 2018-09-24
PDF