Reggeon Non_Factorizability and Fixed Pole in DVCS

Brodsky, Stanley J; Llanes-Estrada, Felipe J; Londergan, J Timothy; Szczepaniak, Adam P

Title: Reggeon Non_Factorizability and Fixed Pole in DVCS

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Abstract

We argue that deeply virtual Compton scattering will display Regge behavior {nu}{sub R}{sup {alpha}}(t) at high energy at fixed-t, even at high photon virtuality, not necessarily conventional scaling. A way to see this is to track the Reggeon contributions to quark-nucleon scattering and notice that the resulting Generalized Parton Distributions would have divergent behavior at the break-points. In addition, we show that the direct two-photon to quark coupling will be accessible at large t where it dominates the DVCS amplitude for large energies. This contribution, the J = 0 fixed-pole, should be part of the future DVCS experimental programs at Jlab or LHeC.

Authors:: Brodsky, Stanley J; Llanes-Estrada, Felipe J; Londergan, J Timothy; Szczepaniak, Adam P

Publication Date:: Mon Aug 03 00:00:00 EDT 2009

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 962110

Report Number(s):: SLAC-PUB-13694
arXiv:0906.5515; TRN: US0902858

DOE Contract Number:: AC02-76SF00515

Resource Type:: Conference

Resource Relation:: Conference: Talk given at 17th International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2009), Madrid, Spain, 26-30 Apr 2009

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AMPLITUDES; COMPTON EFFECT; PHOTONS; QUARKS; SCATTERING; Phenomenology-HEP,HEPPH, HEPTH

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                    Brodsky, Stanley J, /SLAC, Llanes-Estrada, Felipe J, /Madrid U., Londergan, J Timothy, Szczepaniak, Adam P, and /Indiana U. Reggeon Non_Factorizability and Fixed Pole in DVCS.  United States: N. p., 2009. 
        Web.

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                    Brodsky, Stanley J, /SLAC, Llanes-Estrada, Felipe J, /Madrid U., Londergan, J Timothy, Szczepaniak, Adam P, & /Indiana U. Reggeon Non_Factorizability and Fixed Pole in DVCS.  United States.

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                    Brodsky, Stanley J, /SLAC, Llanes-Estrada, Felipe J, /Madrid U., Londergan, J Timothy, Szczepaniak, Adam P, and /Indiana U. 2009.  
        "Reggeon Non_Factorizability and Fixed Pole in DVCS".  United States.  https://www.osti.gov/servlets/purl/962110.

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@article{osti_962110,

  title        = {Reggeon Non_Factorizability and Fixed Pole in DVCS},

  author       = {Brodsky, Stanley J and /SLAC and Llanes-Estrada, Felipe J and /Madrid U. and Londergan, J Timothy and Szczepaniak, Adam P and /Indiana U.},

  abstractNote = {We argue that deeply virtual Compton scattering will display Regge behavior {nu}{sub R}{sup {alpha}}(t) at high energy at fixed-t, even at high photon virtuality, not necessarily conventional scaling. A way to see this is to track the Reggeon contributions to quark-nucleon scattering and notice that the resulting Generalized Parton Distributions would have divergent behavior at the break-points. In addition, we show that the direct two-photon to quark coupling will be accessible at large t where it dominates the DVCS amplitude for large energies. This contribution, the J = 0 fixed-pole, should be part of the future DVCS experimental programs at Jlab or LHeC.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/962110},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Mon Aug 03 00:00:00 EDT 2009},

  month        = {Mon Aug 03 00:00:00 EDT 2009}

}

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