High-statistics measurement of neutral-pion pair production in two-photon collisions

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Bibliographic Information

Published
2008-09-12
Rights Information
  • http://link.aps.org/licenses/aps-default-license
DOI
  • 10.1103/physrevd.78.052004
  • 10.48550/arxiv.0810.0655
  • 10.48550/arxiv.0805.3387
Publisher
American Physical Society (APS)

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Description

We have measured the cross section for pi^0 pi^0 production in two-photon collisions using a data sample with an ntegrated luminosity of 95 fb^-1 collected with the Belle detector. We find at least four resonant structures including a peak from f_0(980), and a fitting of the result to partial-wave amplitudes assuming some resonances are applied. We also make a discussion on the higher-energy region data based on the preliminary results from an increased sample corresponding to the integrated luminosity of 223 fb^-1.

3 pages, 4 figures, proceedings to poster session at ICHEP08, Jul.29-Aug.5, 2008, Philadelphia, PA, USA

Journal

  • Physical Review D

    Physical Review D 78 (5), 052004-, 2008-09-12

    American Physical Society (APS)

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