First Measurement of pi e -> pi e gamma Pion Virtual Compton Scattering

SELEX Collaboration

doi:10.48550/arXiv.hep-ex/0109003

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First Measurement of pi e -> pi e gamma Pion Virtual Compton Scattering

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First Measurement of pi e -> pi e gamma Pion Virtual Compton Scattering

SELEX Collaboration

ArXiv.org

Cornell University Library, arXiv.org

09/01/2002

DOI: 10.48550/arXiv.hep-ex/0109003

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https://doi.org/10.48550/arXiv.hep-ex/0109003View

Preprint (Author's original)This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

Pion Virtual Compton Scattering (VCS) via the reaction pi e --> pi e gamma was observed in the Fermilab E781 SELEX experiment. SELEX used a 600 GeV/c pi- beam incident on target atomic electrons, detecting the incident pi- and the final state pi-, electron and gamma. Theoretical predictions based on chiral perturbation theory are incorporated into a Monte Carlo simulation of the experiment and are compared to the data. The number of reconstructed events (9) and their distribution with respect to the kinematic variables (for the kinematic region studied) are in reasonable accord with the predictions. The corresponding pi- VCS experimental cross section is sigma=38.8+-13 nb, in agreement with the theoretical expectation sigma=34.7 nb.

Perturbation Theory

Chiral dynamics

Computer simulation

Elastic scattering

Kinematics

Monte Carlo simulation

Target detection

Details

Title: Subtitle: First Measurement of pi e -> pi e gamma Pion Virtual Compton Scattering
Creators: SELEX Collaboration
Contributors: E McCliment (Contributor) - University of Iowa, Physics and Astronomy
C. R Newsom (Contributor) - University of Iowa, Physics and Astronomy
Y Onel (Contributor) - University of Iowa, Physics and Astronomy
A Penzo (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Preprint
Publication Details: ArXiv.org
DOI: 10.48550/arXiv.hep-ex/0109003
ISSN: 2331-8422
Publisher: Cornell University Library, arXiv.org; Ithaca
Language: English
Date posted: 09/01/2002
Academic Unit: Physics and Astronomy
Record Identifier: 9984386607602771

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