Photon-Photon Interaction in Glueball Production

Silva, Daniel T. da; Silva, M. L. L. da; Hadjimichef, Dimiter

doi:10.1142/s2010194517600680

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…Gluons do not participate in electromagnetic interactions. Two-photon widths of glueball states are significantly smaller in comparison with two photon width of ordinary quarkonia [42]. The advantage is that two-photon is model independent in contract with other glueball properties.…”

Section: Glueballsmentioning

confidence: 97%

Opportunities for studying C+ resonances at 3--12 GeV photon collider

Beloborodov¹,

Kharlamova²,

Moortgat-pick³

et al. 2022

Preprint

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Recently, a γγ collider based on existing 17.5 GeV linac of the European XFEL has been proposed. High energy photons will be generated by Compton scattering of laser photons with a wavelength of 0.5-1 µm on electrons. Such photon collider covers the range of invariant masses W γγ < 12 GeV. The physics program includes spectroscopy of C+ resonances (c-, b-quarkonia, 4-quark states, glueballs) in various J P states. Variable circular and linear polarizations will help in determining the quantum numbers. In this paper, we present a summary of measured and predicted two-photon widths of various resonances in the mass region 3-12 GeV and investigate the experimental possibility of observing these heavy two-photon resonances under conditions of a large multi-hadron background. Registration of all final particles is assumed. The minimum values of Γ γγ for detecting resonances at the 5 sigma level are obtained.

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Section: Glueballsmentioning

confidence: 97%

Opportunities for studying C+ resonances at 3--12 GeV photon collider

Beloborodov¹,

Kharlamova²,

Moortgat-pick³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

Opportunities for studying $${ C }$$-even resonances at a 3–12 GeV photon collider

et al. 2023

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Recently, a $$\gamma \gamma $$ γ γ collider based on the existing 17.5 GeV linac of the European XFEL has been proposed. High-energy photons will be generated by Compton scattering of laser photons with a wavelength of 0.5–1$${\,\upmu \mathrm m}$$ μ m on electrons. Such a photon collider covers the range of invariant masses $$W_{\gamma \gamma } <12$$ W γ γ < 12 $${\mathrm {\,Ge V\!/}c^2}$$ Ge V / c 2 . The physics program includes spectroscopy of $$ C $$ C -even resonances (c-, b-quarkonia, 4-quark states, glueballs) in various $$J^P$$ J P states. Variable circular and linear polarizations will help in determining the quantum numbers. In this paper, we present a summary of measured and predicted two-photon widths of various resonances in the mass region 3–12 $${\mathrm {\,Ge V\!/}c^2}$$ Ge V / c 2 and investigate the experimental possibility of observing these heavy two-photon resonances under the conditions of a large multi-hadron background. Registration of all final particles is assumed. The minimum values of $$\varGamma _{\gamma \gamma }(W)$$ Γ γ γ ( W ) are obtained at which resonances can be detected at a $$5\sigma $$ 5 σ confidence level in 1 year of operation.

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Photon-Photon Interaction in Glueball Production

Cited by 2 publications

References 6 publications

Opportunities for studying C+ resonances at 3--12 GeV photon collider

Opportunities for studying C+ resonances at 3--12 GeV photon collider

Opportunities for studying $${ C }$$-even resonances at a 3–12 GeV photon collider

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