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  1. Home
  3. Estimating Power Corrections For The Drell-yan Process.
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  3. Estimating Power Corrections For The Drell-yan Process.

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Estimating power corrections for the Drell-Yan process.

Ekta Chaubey1, Pooja Mukherjee2

  • 1Bethe Center for Theoretical Physics, Universität Bonn, 53115 Bonn, Germany.

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|March 23, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

Power corrections in Drell-Yan (DY) processes are significant at low Q, especially from bottom and charm quark effects. Advanced predictions account for these using a variable flavor number scheme and careful matching.

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Area of Science:

  • High Energy Physics
  • Quantum Chromodynamics
  • Particle Physics

Background:

  • The Drell-Yan process is crucial for studying electroweak interactions.
  • Understanding power corrections is essential for precise theoretical predictions.
  • Bottom and charm quark contributions require careful treatment in theoretical models.

Purpose of the Study:

  • To investigate and quantify power corrections in Drell-Yan production.
  • To analyze the impact of bottom and charm quark effects on DY processes.
  • To ensure accurate theoretical predictions by addressing overlapping contributions.

Main Methods:

  • Utilizing state-of-the-art predictions for neutral and charged current Drell-Yan.
  • Implementing a variable flavor number scheme to include heavy quark effects.
  • Applying matching procedures to avoid double counting of contributions.

    • Main Results:

    • Power corrections, particularly from bottom and charm quarks, are significant in the low-Q region.
    • The variable flavor number scheme effectively incorporates these heavy quark effects.
    • Matching procedures successfully eliminate overlapping contributions, ensuring theoretical consistency.

    Conclusions:

    • Power corrections play a vital role in precise Drell-Yan calculations.
    • The methodology provides a robust framework for future theoretical advancements.
    • Accurate modeling of heavy quark contributions is critical for low-Q DY physics.