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Double diffraction dissociation at the Fermilab Tevatron collider.

T Affolder1, H Akimoto, A Akopian

  • 1Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.

Physical Review Letters
|October 3, 2001
PubMed

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Summary
This summary is machine-generated.

We measured double diffraction dissociation in proton-proton collisions at the Tevatron. The cross section for events with a large rapidity gap was determined, providing data for theoretical models.

Area of Science:

  • High-energy particle physics
  • Collider physics
  • Quantum chromodynamics

Background:

  • Proton-proton (pp) collisions are fundamental to understanding strong interactions.
  • Diffractive dissociation events, characterized by rapidity gaps, offer unique insights into non-perturbative QCD.
  • Previous measurements and theoretical predictions provide a basis for new experimental data.

Purpose of the Study:

  • To measure the production cross section of double diffraction dissociation in pp collisions.
  • To investigate events with a central pseudorapidity gap (Delta eta(0) > 3).
  • To compare experimental results with predictions from Regge theory and factorization models.

Main Methods:

  • Utilized data from pp collisions at the Fermilab Tevatron collider.

Related Experiment Videos

  • Analyzed events featuring a large central pseudorapidity gap.
  • Calculated the production cross section for the specified diffractive process.

    • Main Results:

    • Measured the production cross section for double diffraction dissociation at sqrt(s) = 1800 GeV to be 4.43 ± 0.02(stat) ± 1.18(syst) mb.
    • Measured the production cross section at sqrt(s) = 630 GeV to be 3.42 ± 0.01(stat) ± 1.09(syst) mb.
    • Presented results for events with a central pseudorapidity gap width Delta eta(0) > 3.

    Conclusions:

    • The measured cross sections provide crucial experimental data for diffractive processes in pp collisions.
    • Comparison with Regge theory and factorization models will help refine theoretical understanding of these phenomena.
    • This study contributes to the broader exploration of particle interactions at high energies.