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Theoretical uncerta...
Theoretical uncertainties in exclusive electroproduction of S-wave heavy quarkonia
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- Cepila, Jan (författare)
- Czech Technical University in Prague
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- Nemchik, Jan (författare)
- Institute of Experimental Physics SAS,Czech Technical University in Prague
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- Krelina, Michal (författare)
- Czech Technical University in Prague,Federico Santa Maria Technical University
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- Pasechnik, Roman (författare)
- Lund University,Lunds universitet,Teoretisk partikelfysik - Geonomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Theoretical Particle Physics - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science,Nuclear Physics Institute of the Academy of Sciences, Czech Republic,Federal University of Santa Catarina
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(creator_code:org_t)
- 2019-06-12
- 2019
- Engelska.
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Ingår i: European Physical Journal C. - : Springer Science and Business Media LLC. - 1434-6044 .- 1434-6052. ; 79:6
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://link.springe...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this work, we revise the conventional description of J/ ψ(1 S) , Υ (1 S) , ψ′(2 S) and Υ ′(2 S) elastic photo- and electroproduction off a nucleon target within the color dipole picture and carefully study various sources of theoretical uncertainties in calculations of the corresponding electroproduction cross sections. For this purpose, we test the corresponding predictions using a bulk of available dipole cross section parametrisations obtained from deep inelastic scattering data at HERA. Specifically, we provide the detailed analysis of the energy and hard-scale dependencies of quarkonia yields employing the comprehensive treatment of the quarkonia wave functions in the Schrödinger equation based approach for a set of available c- c¯ and b- b¯ interquark interaction potentials. Besides, we quantify the effect of Melosh spin rotation, the Q2-dependence of the diffractive slope and an uncertainty due to charm and bottom quark mass variations.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
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- ref (ämneskategori)
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