6533b831fe1ef96bd12985ad
RESEARCH PRODUCT
Isospin breaking effects in the X(3872) resonance
Daniel GamermannEulogio Osetsubject
Quantum chromodynamicsPhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsBranching fractionFOS: Physical sciencesFísica01 natural sciencesResonance (particle physics)3. Good healthHigh Energy Physics - PhenomenologyVirtual stateParticle decayPionHigh Energy Physics - Phenomenology (hep-ph)Isospin0103 physical sciencesHigh Energy Physics::Experiment010306 general physicsX(3872)description
In this paper we study the effects of isospin breaking in the dynamical generation of the X(3872) state. We also calculate the ratio of the branching fractions of the $X$ decaying into $J/\psi$ with two and three pions, which has been measured experimentally to be close to unity. Together with the X(3872), of positive C-parity, we predict the existence of a negative C-parity state and we comment on which decay channel is more promising to observe this state.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-07-07 |