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Nuclear shadowing in the holographic framework.

L Agozzino1, P Castorina1, P Colangelo2

  • 1Dipartimento di Fisica, Universitá di Catania, via S. Sofia 62, 95125 Catania, Italy and INFN, Sezione di Catania, via S. Sofia 62, 95125 Catania, Italy.

Physical Review Letters
|March 4, 2014
PubMed
Summary
This summary is machine-generated.

Holographic framework calculations for nucleon structure function F2(N) accurately describe nuclear deep inelastic scattering. Rescaling parameters enable precise prediction of nuclear ratios RA, aligning with experimental shadowing region data.

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Area of Science:

  • Nuclear Physics
  • Quantum Chromodynamics
  • High Energy Physics

Background:

  • The nucleon structure function F2(N) is crucial for understanding deep inelastic scattering (DIS).
  • Holographic frameworks offer a theoretical approach to model nucleon structure.
  • Nuclear effects in DIS require specific theoretical treatments.

Purpose of the Study:

  • To adapt a holographic framework for calculating nuclear structure functions.
  • To investigate the role of rescaling in describing nuclear DIS phenomena.
  • To compare theoretical predictions with experimental data in the shadowing region.

Main Methods:

  • Computing the nucleon structure function F2(N) within a holographic framework.
  • Implementing a rescaling procedure for momentum transfer (Q2) and the infrared hard-wall parameter (z0).
  • Calculating nuclear ratios RA = F2(A)/F2(N) using a single rescaling parameter λA for each nucleus.

Main Results:

  • The rescaled holographic framework successfully describes nuclear deep inelastic scattering effects.
  • Nuclear ratios RA are accurately reproduced by introducing a nucleus-specific rescaling parameter λA.
  • The model shows good agreement with experimental data across a wide range of the shadowing region.

Conclusions:

  • The holographic approach, with appropriate rescaling, provides a viable method for studying nuclear structure functions.
  • Rescaling of Q2 and z0 is essential for bridging theoretical calculations to experimental nuclear DIS data.
  • This framework offers a promising tool for exploring nuclear shadowing phenomena.