High Energy Behaviour of Light Meson Photoproduction

Amaryan, Moskov J.; Briscoe, William J.; Ryskin, Michael G.; Strakovsky, Igor I.

doi:10.48550/arxiv.2102.03633

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Electromagnetic Form Factors and Distribution Amplitudes1

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2021

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“…was a first indication of the success of this approach, as were the successes of the dimensional scaling laws [45,46] for many fixed angle scattering processes [47].…”

Section: Electromagnetic Form Factors and Distribution Amplitudesmentioning

confidence: 98%

Transition distribution amplitudes and hard exclusive reactions with baryon number transfer

Pire,

Semenov-Tian-Shansky,

Szymanowski

2021

Preprint

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Baryon-to-meson and baryon-to-photon transition distribution amplitudes (TDAs) arise in the collinear factorized description of a class of hard exclusive reactions characterized by the exchange of a non-zero baryon number in the cross channel. These TDAs extend the concepts of generalized parton distributions (GPDs) and baryon distribution amplitudes (DAs). In this review we discuss the general properties and physical interpretation of baryon-to-meson and baryon-to-photon TDAs. We argue that these nonperturbative objects are a convenient complementary tool to explore the structure of baryons at the partonic level. We present an overview of hard exclusive reactions admitting a description in terms of TDAs. We discuss the first signals from hard exclusive backward meson electroproduction at JLab with the 6 GeV electron beam and explore further experimental opportunities to access TDAs at JLab@12 GeV, PANDA and J-PARC.

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“…was a first indication of the success of this approach, as were the successes of the dimensional scaling laws [45,46] for many fixed angle scattering processes [47].…”

Section: Electromagnetic Form Factors and Distribution Amplitudesmentioning

confidence: 98%

Transition distribution amplitudes and hard exclusive reactions with baryon number transfer

Pire,

Semenov-Tian-Shansky,

Szymanowski

2021

Preprint

View full text Add to dashboard Cite

show abstract

High Energy Behaviour of Light Meson Photoproduction

Abstract: We evaluated recent CLAS Collaboration measurements for the 90 • meson photoproduction off the nucleon using a tagged photon beam spanning the energy interval s = 3 − 11 GeV 2 . The results are compared with the "Quark Counting Rules" predictions.

Cited by 1 publication

References 32 publications

Transition distribution amplitudes and hard exclusive reactions with baryon number transfer

Transition distribution amplitudes and hard exclusive reactions with baryon number transfer

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