6533b836fe1ef96bd12a09d3
RESEARCH PRODUCT
The Heavy Quark Spin Symmetry Partners of the X(3872)
Juan NievesM. Pavón Valderramasubject
QuarkPhysicsNuclear and High Energy PhysicsParticle physicsNuclear Theory010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyOrder (ring theory)FísicaFOS: Physical sciences01 natural sciencesNuclear Theory (nucl-th)High Energy Physics - PhenomenologyPionHigh Energy Physics - Phenomenology (hep-ph)Position (vector)0103 physical sciencesEffective field theorySpin symmetryHigh Energy Physics::Experiment010306 general physicsNuclear ExperimentNuclear theoryX(3872)description
We explore the consequences of heavy quark spin symmetry for the charmed meson-antimeson system in a contact-range (or pionless) effective field theory. As a trivial consequence, we theorize the existence of a heavy quark spin symmetry partner of the X(3872), with $J^{PC}=2^{++}$, which we call X(4012) in reference to its predicted mass. If we additionally assume that the X(3915) is a $0^{++}$ heavy spin symmetry partner of the X(3872), we end up predicting a total of six $D^{(*)}\bar{D}^{(*)}$ molecular states. We also discuss the error induced by higher order effects such as finite heavy quark mass corrections, pion exchanges and coupled channels, allowing us to estimate the expected theoretical uncertainties in the position of these new states.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-04-12 |