2008/10/27 by Svjetlana Fajfer, Nejc Košnik, Nejc Kosnik · 2 citations
Physics and Astronomy · #B meson #Branching fraction #Charm (quantum number) #Dark Matter and Cosmic Phenomena #Electron #Invariant mass #Lepton #Leptoquark #Meson #Neutral current #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Scalar (mathematics) #hep-ph
paper · pdf · doi:10.1103/physrevd.79.017502
published as Phys.Rev.D79:017502,2009 · 5 pages, 1 figure
arxiv created 2008/10/27 · openalex publication_date 2009/01/26 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Recently it was noticed that among many scenarios of new physics leptoquarks might compensate for the disagreement between the lattice and experimental results for the charmed strange meson decay constant. The leptoquarks might modify also the flavor changing neutral current charm decays. In this study we investigate the impact of the scalar leptoquark with electric charge \ensuremath-1/3 on the dilepton invariant mass distribution in the D+\ensuremath→\ensuremathπ+\ensuremathμ+\ensuremathμ^\ensuremath- decay and on the branching ratios of the D0\ensuremath→\ensuremathμ+\ensuremathμ^\ensuremath- using the existing experimental results.