Spin-dependent parton distributions in the nucleon

Cloet, I C; Bentz, W; Thomas, A W

Title: Spin-dependent parton distributions in the nucleon

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Abstract

Spin-dependent quark light-cone momentum distributions are calculated for a nucleon in the nuclear medium. We utilize a modified NJL model where the nucleon is described as a composite quark-diquark state. Scalar and vector mean fields are incorporated in the nuclear medium and these fields couple to the confined quarks in the nucleon. The effect of these fields on the spin-dependent distributions and consequently the axial charges is investigated. Our results for the ''spin-dependent EMC effect'' are also discussed.

Authors:: Cloet, I C; Bentz, W; Thomas, A W

Publication Date:: Fri Apr 01 00:00:00 EST 2005

Research Org.:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Org.:: USDOE Office of Energy Research (ER) (US)

OSTI Identifier:: 838561

Report Number(s):: JLAB-THY-05-7; DOE/ER/40150-3262
TRN: US0501470

DOE Contract Number:: AC05-84ER40150

Resource Type:: Conference

Resource Relation:: Conference: Workshop On QCD Down Under, Barossa Valley and Adelaide (AU), 03/10/2004--03/19/2004; Other Information: PBD: 1 Apr 2005

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; LIGHT CONE; NUCLEONS; PARTONS; QUANTUM CHROMODYNAMICS; QUARKS; SCALARS; VECTORS

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                    Cloet, I C, Bentz, W, and Thomas, A W. Spin-dependent parton distributions in the nucleon.  United States: N. p., 2005. 
        Web.

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                    Cloet, I C, Bentz, W, & Thomas, A W. Spin-dependent parton distributions in the nucleon.  United States.

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                    Cloet, I C, Bentz, W, and Thomas, A W. 2005.  
        "Spin-dependent parton distributions in the nucleon".  United States.

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@article{osti_838561,

  title        = {Spin-dependent parton distributions in the nucleon},

  author       = {Cloet, I C and Bentz, W and Thomas, A W},

  abstractNote = {Spin-dependent quark light-cone momentum distributions are calculated for a nucleon in the nuclear medium. We utilize a modified NJL model where the nucleon is described as a composite quark-diquark state. Scalar and vector mean fields are incorporated in the nuclear medium and these fields couple to the confined quarks in the nucleon. The effect of these fields on the spin-dependent distributions and consequently the axial charges is investigated. Our results for the ''spin-dependent EMC effect'' are also discussed.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/838561},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Apr 01 00:00:00 EST 2005},

  month        = {Fri Apr 01 00:00:00 EST 2005}

}

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