The Meson Spectroscopy Program at the Jefferson Laboratory

Filippi, A.

doi:10.1051/epjconf/20159601013

Cited by 3 publications

(2 citation statements)

References 20 publications

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“…Finally, it should be noted that the GlueX Collaboration has proposed to search for the φ(2170) in the photoproduction [58], and the γp → ηφp reaction has been selected as a particularly suitable process to search for strangeonium states by the CLAS12 Collaboration [59]. Our predictions should be useful for the future experimental study.…”

Section: Resultsmentioning

confidence: 90%

ϕ(2170) production in the process γp→ηϕp

Zhao

Wang

et al. 2019

Phys. Rev. D

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We have studied the γp → ηφp reaction within the effective Lagrangian approach, by considering the contribution of the intermediate state φ(2170) production, and the background contributions of t-channel π 0 and η mesons exchanges with the intermediate states N and N (1535). Our calculations show that there may be a peak, at least a bump structure around 2180 MeV associated to the resonance φ(2170) in the ηφ mass distribution. We suggest to search for the resonance φ(2170) in this reaction, which would be helpful to shed light on its nature. PACS numbers:

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Section: Resultsmentioning

confidence: 90%

ϕ(2170) production in the process γp→ηϕp

Zhao

Wang

et al. 2019

Phys. Rev. D

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“…The magnetic field, which is used to measure the particle momenta, is generated by a superconductive solenoid magnet (5 T) in the Central Detector and by a superconductive torus magnet (3.6 T) in the Forward Detector. The different detectors of the experimental apparatus are indicated in figure 2; they are described in detail in [14] and schematically in [15]. …”

Section: Pos(cd15)060mentioning

confidence: 99%

The meson spectroscopy program with CLAS12 at Jefferson Laboratory

Rizzo¹

2016

Proceedings of the 8th International Workshop on Chiral Dynamics — PoS(CD15)

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The study of the hadronic spectrum is one of the most powerful tools to investigate the mechanism at the basis of quark confinement within hadrons. A precise determination of the spectrum allows not only to assess the properties of the hadrons in their fundamental and excited states, but also to investigate the existence of states resulting from alternative configurations of quarks and gluons, such as the glue-balls, hybrid hadrons and many-quarks configurations. The study of the mesonic part of the spectrum can play a central role in this investigation thanks to the strong signature that the hybrid mesons are expected to have: the presence of explicit gluonic degrees of freedom in such states may result in J PC configurations not allowed for the standard qq states. From the experimental side the expected high-multiplicity decays of the hybrid mesons require an apparatus with high performances in terms of rate-capability, resolution and acceptance. The CLAS12 experiment (formally MesonEx) is one of new-generation experiments at Thomas Jefferson National Laboratory (JLAB) for which an unprecedented statistics of events, with fully reconstructed kinematics for large particle multiplicity decays, will be available. A wide scientific program that will start in 2016 has been deployed for meson spectrum investigation with the CLAS12 apparatus in Hall B at energies up to 11 GeV. One of the main parts of the program is based on the use of the Forward Tagger apparatus, which will allow CLAS12 experiment to extend the study of meson electro-production to the quasi-real photo-production kinematical region (very low Q 2 ), where the production of hybrid mesons is expected to be favoured. The data analysis which is required to extract the signal from hybrid states should go beyond the standard partial wave analysis techniques and a new analysis framework is being set up through the international network Haspect. The Haspect Network gathers people involved into theoretical and experimental hadronic physics all over the world, to investigate and propose new analysis models and new statistical techniques to unfold signal and background. The new analysis framework is being developed and tested using the existing CLAS data and results are projected to the CLAS12 performances, showing that the quest for hybrid exotic mesons is at reach.

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The hybrid mesons quest: the MesonEx experiment at Jefferson Laboratory

Rizzo

2016

J. Phys.: Conf. Ser.

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The Meson Spectroscopy Program at the Jefferson Laboratory

Cited by 3 publications

References 20 publications

ϕ(2170) production in the process γp→ηϕp

ϕ(2170) production in the process γp→ηϕp

The meson spectroscopy program with CLAS12 at Jefferson Laboratory

The hybrid mesons quest: the MesonEx experiment at Jefferson Laboratory

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