Two-gluon production of 
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 and 
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 mesons in proton-proton collisions at high energies

Cisek, Anna; Szczurek, Antoni

doi:10.1103/physrevd.103.114008

Cited by 4 publications

(2 citation statements)

References 41 publications

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“…An application of such formalism was presented in [29] for a similar reaction, two-pseudoscalar mesons production in K ± and π ± beam diffraction. More recently the double-Regge exchange was used to describe the central meson production in the high energy proton-proton collisions [30][31][32]. We will adopt the same model and quote in this section its main features.…”

Section: Double-regge Modelmentioning

confidence: 99%

$$\pi ^-p\rightarrow \eta ^{(\prime )}\, \pi ^- p$$ in the double-Regge region

et al. 2021

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The production of $$\eta ^{(\prime )}\pi $$ η ( ′ ) π pairs constitutes one of the golden channels to search for hybrid exotics, with explicit gluonic degrees of freedom. Understanding the dynamics and backgrounds associated to $$\eta ^{(\prime )}\pi $$ η ( ′ ) π production above the resonance region is required to impose additional constraints to the resonance extraction. We consider the reaction $$\pi ^-p\rightarrow \eta ^{(\prime )} \pi ^- \,p$$ π - p → η ( ′ ) π - p measured by COMPASS. We show that the data in $$2.4< m_{\eta ^{(\prime )}\pi } < 3.0{\mathrm {\,GeV}} $$ 2.4 < m η ( ′ ) π < 3.0 GeV can be described by amplitudes based on double-Regge exchanges. The angular distribution of the meson pairs, in particular in the $$\eta ' \pi $$ η ′ π channel, can be attributed to flavor singlet exchanges, suggesting the presence of a large gluon content that couples strongly to the produced mesons.

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Section: Double-regge Modelmentioning

confidence: 99%

$$\pi ^-p\rightarrow \eta ^{(\prime )}\, \pi ^- p$$ in the double-Regge region

et al. 2021

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“…In general the multi-Regge exchange formalism has been extensively studied theoretically in the past [200,[583][584][585][586][587][588]; more recently the double-Regge exchange was used to study two-kaon photoproduction off the proton [589], and to describe the central meson production in the high energy proton-proton collisions [590][591][592].…”

Section: Two-meson Production In the Double-regge Regionmentioning

confidence: 99%

Novel approaches in Hadron Spectroscopy

Albaladejo,

Bibrzycki,

Dawid

et al. 2021

Preprint

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The last two decades have witnessed the discovery of a myriad of new and unexpected hadrons. The future holds more surprises for us, thanks to new-generation experiments. Understanding the signals and determining the properties of the states requires a parallel theoretical effort. To make full use of available and forthcoming data, a careful amplitude modeling is required, together with a sound treatment of the statistical uncertainties, and a systematic survey of the model dependencies. We review the contributions made by the Joint Physics Analysis Center to the field of hadron spectroscopy.

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