Physical Sciences and Mathematics Commons^™

Measurement Of Branching Fractions Of Rare Semi-Leptonic Ds Decays Ds → Π0 L Ν, Ds →Ρ L Ν, Ds →Ks L Ν (Near ϒ (4s), ϒ (5s)) At Belle, Sudeshna Ganguly

Wayne State University Dissertations

In Particle physics, a flavor-less meson whose constituents are a quark and an anti-quark is known as quarkonium. Mesons which are formed by a bound state of charm quark and anti-charm quark are known as charmonium states. Different inspections of exotic charmonium states have been understood as 4-quark states. Charmonium states are produced via e+e− annihilation. We search at Belle, based on 119000 tagged events in the ϒ (4S) and ϒ (5S) energy regions, to look for Ds → π0 l ν, Ds →ρ l ν, Ds →Ks l ν ; considering the electron candidates as well the heavy electron …