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Volumn 67, Issue 3, 2003, Pages

Modeling generalized parton distributions to describe deeply virtual Compton scattering data

Author keywords

[No Author keywords available]

Indexed keywords

ALGORITHM; ARTICLE; CALCULATION; COMPTON EFFECT; KINEMATICS; MATHEMATICAL MODEL;

EID: 0037300867     PISSN: 15507998     EISSN: 15502368     Source Type: Journal    
DOI: 10.1103/PhysRevD.67.036001     Document Type: Article
Times cited : (89)

References (66)
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    • Regular parton distributions are merely particle distributions not particle correlation functions.
    • Regular parton distributions are merely particle distributions not particle correlation functions.
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    • Factorized refers here to writing the DD, a three-variable function, in terms of the product of a two-variable with two one-variable functions as explicitly shown in Sec. II.
    • Factorized refers here to writing the DD, a three-variable function, in terms of the product of a two-variable with two one-variable functions as explicitly shown in Sec. II.
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    • The fact that (Formula presented) guarantees that odd powers of (Formula presented) are missing from the moments of (Formula presented) This is required by Hermiticity and time reversal of the corresponding hadronic matrix elements.
    • The fact that (Formula presented) guarantees that odd powers of (Formula presented) are missing from the moments of (Formula presented) This is required by Hermiticity and time reversal of the corresponding hadronic matrix elements.
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    • Comparison of any of the above models with data from the HERMES and CLAS experiments shows that the same problem persists also for large (Formula presented) as already pointed out in
    • Comparison of any of the above models with data from the HERMES and CLAS experiments shows that the same problem persists also for large (Formula presented) as already pointed out in 20.
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    • ZEUS Collaboration, “Measurement of the Deeply Virtual Compton Scattering Cross Section at HERA,” contributed paper, abstract 825, to ICHEP2002, Amsterdam, 2002.
    • ZEUS Collaboration, “Measurement of the Deeply Virtual Compton Scattering Cross Section at HERA,” contributed paper, abstract 825, to ICHEP2002, Amsterdam, 2002.
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    • The first moment counts the number of quarks in the proton and the second moment is a generalization of the momentum sum rule where the D term generates all the deviation from unity as (Formula presented) varies.
    • The first moment counts the number of quarks in the proton and the second moment is a generalization of the momentum sum rule where the D term generates all the deviation from unity as (Formula presented) varies.
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    • At very small t, (Formula presented) becomes large due to the pion pole it contains. However, due to other kinematical factors in front of it, the contribution from the term involving (Formula presented) only becomes important close to (Formula presented) which is never reached at either the HERMES or CLAS experiment.
    • At very small t, (Formula presented) becomes large due to the pion pole it contains. However, due to other kinematical factors in front of it, the contribution from the term involving (Formula presented) only becomes important close to (Formula presented) which is never reached at either the HERMES or CLAS experiment.
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    • ZEUS Collaboration, “Exclusive and Proton-Dissociative Electroproduction of (Formula presented) Mesons at HERA,” contributed paper, abstract 818, to ICHEP2002, Amsterdam, 2002.
    • ZEUS Collaboration, “Exclusive and Proton-Dissociative Electroproduction of (Formula presented) Mesons at HERA,” contributed paper, abstract 818, to ICHEP2002, Amsterdam, 2002.
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    • One needs to investigate how a change of the t-slope parametrization in the Monte Carlo simulation used to analyze the ZEUS and H1 data would modify the extracted cross section.
    • One needs to investigate how a change of the t-slope parametrization in the Monte Carlo simulation used to analyze the ZEUS and H1 data would modify the extracted cross section.
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    • H1 Collaboration, “Elastic Electroproduction of (Formula presented) Mesons at High (Formula presented) at HERA,” contributed paper, abstract 989, to ICHEP2002, Amsterdam, 2002.
    • H1 Collaboration, “Elastic Electroproduction of (Formula presented) Mesons at High (Formula presented) at HERA,” contributed paper, abstract 989, to ICHEP2002, Amsterdam, 2002.


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