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Hey everyone,</div>
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At 1pm today please join us in L102 for a Cake seminar by Gloria Montana-Faiget.</div>
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Zoom: https://jlab-org.zoomgov.com/j/1617591383?pwd=U5KadGwiKsRkUz3wdOcYfY4TXvoyiy.1</div>
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Title: Recent developments in meson photoproduction at high energies within Regge theory</div>
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Abstract: The observation of hybrid mesons in photoproduction experiments such as GlueX provides a powerful probe of QCD in the nonperturbative regime. Interpreting forthcoming measurements requires a detailed understanding of the underlying production mechanisms.
In this seminar, I will review recent developments in modeling meson photoproduction within the framework of Regge theory. At high energies, diffractive meson production is governed by the exchange of Regge trajectories associated with the lightest mesons.
In particular, the Regge pion exchange is expected to dominate in charge-exchange reactions. I will discuss the Reggeization of pion exchange in charged pion photoproduction, with an emphasis on ensuring consistency with current conservation [1]. I will also
present a new Regge model based on double-vector exchange for ¥ç¥ð and ¥ç¡¯¥ð photoproduction [2]. These channels are of particular interest because they contain the exotic ¥ð©û(1600) at low energies. The model predicts a larger forward-backward angular asymmetry
in ¥ç¡¯¥ð than ¥ç¥ð, indicating a stronger contribution of exotic partial waves in the ¥ç¡¯¥ð channel.</div>
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[1] G. Montana et al. (JPAC), Phys.Rev.D 110 (2024) 11, 114012</div>
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[2] G. Montana et al. (JPAC), in preparation</div>
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<span style="background-color: rgb(255, 255, 255);">--</span></div>
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Joe Karpie</div>
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Pronouns: He/His/Him</div>
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Postdoctoral Fellow</div>
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Theoretical and Computational Physics Center</div>
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Jefferson Lab</div>
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