scholarly journals OPE of Green functions of chiral currents

2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
Tomáš Kadavý ◽  
Karol Kampf ◽  
Jiří Novotný
Keyword(s):  
Operator Product Expansion ◽  
Chiral Limit ◽  
High Energy ◽  
Operator Product ◽  
Green Functions ◽  
High Energy Behavior ◽  
Energy Behavior

Abstract In this paper, we investigate the high-energy behavior of two-point and three-point Green functions of the QCD chiral currents and densities using the framework of the operator product expansion in the chiral limit. In detail, we study the contributions of the quark, gluon, quark-gluon and four-quark condensates to all the relevant non-vanishing three-point correlators.

scholarly journals Contribution of QCD condensates to the OPE of Green functions of chiral currents

2019 ◽  
Vol 199 ◽  
pp. 05025
Author(s):  
Tomáš Kadavý ◽  
Karol Kampf ◽  
Jiří Novotný
Keyword(s):  
Perturbation Theory ◽  
Operator Product Expansion ◽  
High Energy ◽  
Operator Product ◽  
Green Functions ◽  
Chiral Perturbation ◽  
Unknown Parameters ◽  
Energy Behaviour ◽  
Intrinsic Parity ◽  
Effective Theories

A framework of operator product expansion (OPE) allows us to study high-energy behaviour of Green functions. A calculation of such Green functions within chiral perturbation theory (χPT) or resonance chiral theory (RχT) and subsequent matching of the result to the OPE enables us to determine constraints for unknown parameters of the effective theories. We present such procedure for Green functions in the odd-intrinsic parity sector of QCD.

scholarly journals High-energy behavior of Mellin amplitudes

2020 ◽  
Vol 101 (6) ◽  
Author(s):  
Matthew Dodelson ◽  
Hirosi Ooguri
Keyword(s):  
High Energy ◽  
High Energy Behavior ◽  
Energy Behavior

scholarly journals High-energy operator product expansion at sub-eikonal level

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
Giovanni Antonio Chirilli
Keyword(s):  
Operator Product Expansion ◽  
Evolution Equations ◽  
Energy Operator ◽  
High Energy ◽  
Structure Functions ◽  
Distribution Functions ◽  
Impact Factors ◽  
Operator Product ◽  
The Impact ◽  
New Distribution

Abstract The high energy Operator Product Expansion for the product of two electromagnetic currents is extended to the sub-eikonal level in a rigorous way. I calculate the impact factors for polarized and unpolarized structure functions, define new distribution functions, and derive the evolution equations for unpolarized and polarized structure functions in the flavor singlet and non-singlet case.

Low-Energy Theorems and High-Energy Behavior

1972 ◽  
Vol 6 (9) ◽  
pp. 2483-2487
Author(s):  
Michael Creutz
Keyword(s):  
High Energy ◽  
Low Energy ◽  
High Energy Behavior ◽  
Energy Behavior

The high energy behavior of open string scattering

1989 ◽  
Vol 326 (1) ◽  
pp. 73-107 ◽  
Author(s):  
David J. Gross ◽  
J.L. Mañes
Keyword(s):  
Open String ◽  
High Energy ◽  
High Energy Behavior ◽  
Energy Behavior
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