Photoproduction of exotic baryon resonances
| Autor: | Jonathan L. Rosner, Marek Karliner |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Nuclear and High Energy Physics
Particle physics Photon Proton Physics::Instrumentation and Detectors FOS: Physical sciences 01 natural sciences High Energy Physics - Experiment Nuclear physics High Energy Physics - Experiment (hep-ex) Cross section (physics) High Energy Physics - Phenomenology (hep-ph) P channel 0103 physical sciences Nuclear Experiment 010306 general physics Physics GlueX 010308 nuclear & particles physics Resonance State (functional analysis) lcsh:QC1-999 High Energy Physics - Phenomenology Exotic baryon Physics::Accelerator Physics High Energy Physics::Experiment lcsh:Physics |
| Zdroj: | Physics Letters B, Vol 752, Iss C, Pp 329-332 (2016) Physics Letters B |
| ISSN: | 0370-2693 |
| DOI: | 10.1016/j.physletb.2015.11.068 |
| Popis: | We point out that the new exotic resonances recently reported by LHCb in the $J/\psi p$ channel are excellent candidates for photoproduction off a proton target. This test is crucial to confirming the resonant nature of such states, as opposed to their being kinematical effects. We specialize to an interpretation of the heavier narrow state as a molecule composed of $\Sigma_c$ and $\bar D^*$, and estimate its production cross section using vector dominance. The relevant photon energies and fluxes are well within the capabilities of the GlueX and CLAS12 detectors at Thomas Jefferson National Accelerator Facility (JLAB). A corresponding calculation is also performed for photoproduction of an analogous resonance which is predicted to exist in the $\Upsilon p$ channel. Comment: 8 pages, 2 figures, accepted for publication in Physics Letters B |
| Databáze: | OpenAIRE |
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