Two-photon processes at Belle

H. Nakazawa

doi:10.1088/1674-1137/34/6/031

Chinese Physics C> 2010, Vol. 34> Issue(6) : 801-806 DOI: 10.1088/1674-1137/34/6/031

Two-photon processes at Belle

H. Nakazawa ^,

National Central University, Chung-Li

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Abstract：
We review recent measurements of pure neutral final state production in the two-photon processes, γγ→π⁰π⁰ and ηπ⁰ at the Belle experiment. In the lower invariant mass region, properties of light scalar mesons are measured by partial wave analysis. In the higher energy region the total and differential cross section are compared with QCD models.

References

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. Nakazawa H et al (Belle collaboration). Phys. Lett. B, 2005,615: 392. Mori T et al (Belle collaboration). Phys. Rev. D, 2007, 75:051101(R)3. Mori T et al (Belle collaboration). J. Phys. Soc. Jpn, 2007,76: 0741024. Abe K et al (Belle collaboration). Eur. Phys. J. C, 2004,32: 3235. CHEN W T et al (Belle collaboration). Phys. Lett. B, 2007,651: 156. KUO C C et al (Belle collaboration). Phys. Lett. B, 2005,621: 417. Uehara S et al (Belle collaboration). Phys. Rev. Lett., 2006,96: 0820038. Uehara S et al (Belle collaboration). Phys. Rev. D, 2008,78: 0520049. Uehara S et al (Belle collaboration). Phys. Rev. D, 2009,79: 05200910. Uehara S et al (Belle collaboration). Phys. Rev. D, 2009,80: 03200111. Abashian A et al (Belle collaboration). Nucl. Instr. andMeth. A, 2002, 479: 11712. Kurokawa S, Kikutani E. Nucl. Instr. and Meth. A, 2003,499: 1, and other papers included in this Volume13. Antreasyan D et al (Crystal Ball collaboration). Phys. Rev.D, 1986, 33: 184714. Brodsky S J, Lepage G P. Phys. Rev. D, 1981, 24: 180815. Benayoun M, Chernyak V L. Nucl. Phys. B, 1990, 329: 28516. Diehl M, Kroll P, Vogt C. Phys. Lett. B, 2002, 532: 9917. YAO W M et al (Particle Data Group). J. Phys. G, 2006,33: 1

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H. Nakazawa. Two-photon processes at Belle[J]. Chinese Physics C, 2010, 34(6): 801-806. doi: 10.1088/1674-1137/34/6/031

H. Nakazawa. Two-photon processes at Belle[J]. Chinese Physics C, 2010, 34(6): 801-806. doi: 10.1088/1674-1137/34/6/031 shu

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Received: 2010-02-05
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Two-photon processes at Belle

H. Nakazawa ^,

Corresponding author: H. Nakazawa,

National Central University, Chung-Li

Received Date: 2010-02-05
Accepted Date: 1900-01-01
Available Online: 2010-06-05

Abstract:

We review recent measurements of pure neutral final state production in the two-photon processes, γγ→π⁰π⁰ and ηπ⁰ at the Belle experiment. In the lower invariant mass region, properties of light scalar mesons are measured by partial wave analysis. In the higher energy region the total and differential cross section are compared with QCD models.