Photoproduction of exotic baryon resonances

Marek Karliner; Jonathan L. Rosner

doi:10.1016/j.physletb.2015.11.068

Photoproduction of exotic baryon resonances

Marek Karliner^*, Jonathan L. Rosner

^*Corresponding author for this work

School of Physics and Astronomy

The University of Chicago

Research output: Contribution to journal › Article › peer-review

106 Scopus citations

Abstract

We point out that the new exotic resonances recently reported by LHCb in the J/ψp 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 σ_c and 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 Υ{hooked}p channel.

Original language	English
Pages (from-to)	329-332
Number of pages	4
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	752
DOIs	https://doi.org/10.1016/j.physletb.2015.11.068
State	Published - 10 Jan 2016

Funding

Funders	Funder number
Division of High Energy Physics	DE-FG02-13ER41958
National Science Foundation	PHY-1066293
U.S. Department of Energy
Directorate for Mathematical and Physical Sciences	1066293

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title = "Photoproduction of exotic baryon resonances",

abstract = "We point out that the new exotic resonances recently reported by LHCb in the J/ψp 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 σc and 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 Υ{hooked}p channel.",

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AU - Rosner, Jonathan L.

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AB - We point out that the new exotic resonances recently reported by LHCb in the J/ψp 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 σc and 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 Υ{hooked}p channel.

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Photoproduction of exotic baryon resonances

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