Threshold photoproduction of $η_c$ and $η_b$ using holographic QCD
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| Format: | Preprint |
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2024
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| _version_ | 1866914752535461888 |
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| author | Hechenberger, Florian Mamo, Kiminad A. Zahed, Ismail |
| author_facet | Hechenberger, Florian Mamo, Kiminad A. Zahed, Ismail |
| contents | We discuss the possibility that threshold photoproduction of $η_{c,b}$ may be sensitive to the pseudovector $1^{+-}$ glueball exchange. We use the holographic construction to identify the pseudovector glueball with the Kalb-Ramond field, minimally coupled to bulk Dirac fermions. We derive the holographic C-odd form factor and its respective charge radius. Using the pertinent Witten diagrams, we derive and analyze the differential photoproduction cross section for $η_{c,b}$ in the threshold regime, including the interference from the dual bulk photon exchange with manifest vector dominance. The possibility of measuring this process at current and future electron facilities is discussed. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2401_12162 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Threshold photoproduction of $η_c$ and $η_b$ using holographic QCD Hechenberger, Florian Mamo, Kiminad A. Zahed, Ismail High Energy Physics - Phenomenology Nuclear Theory We discuss the possibility that threshold photoproduction of $η_{c,b}$ may be sensitive to the pseudovector $1^{+-}$ glueball exchange. We use the holographic construction to identify the pseudovector glueball with the Kalb-Ramond field, minimally coupled to bulk Dirac fermions. We derive the holographic C-odd form factor and its respective charge radius. Using the pertinent Witten diagrams, we derive and analyze the differential photoproduction cross section for $η_{c,b}$ in the threshold regime, including the interference from the dual bulk photon exchange with manifest vector dominance. The possibility of measuring this process at current and future electron facilities is discussed. |
| title | Threshold photoproduction of $η_c$ and $η_b$ using holographic QCD |
| topic | High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2401.12162 |