High statistics study of f(0)(980) resonance in gamma gamma ---> pi+ pi- production - INSPIRE

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High statistics study of f(0)(980) resonance in gamma gamma ---> pi+ pi- production

Belle

Collaboration

•

T. Mori
(
- Nagoya U.
)

Oct, 2006

6 pages

Part of Proceedings of the 33rd International Conference on High Energy Physics (ICHEP '06) : Moscow, Russia, July 26-August 2, 2006

Published in:

Phys.Rev.D 75 (2007) 051101

Contribution to:

- ICHEP 2006

e-Print:

hep-ex/0610038 [hep-ex]

DOI:

10.1103/PhysRevD.75.051101

PDG:

{{\mathit f}_{{{0}}}{(980)}}

\rightarrow

{{\mathit \gamma}}{{\mathit \gamma}}

Report number:

BELLE-CONF-0661

Experiments:

KEK-BF-BELLE

View in:

ADS Abstract Service

reference search129 citations

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Abstract:

We report on a high statistics measurement of the cross section of the process gamma gamma to pi^+ pi^- in the center-of-mass energy range 0.8 GeV/c^2 < W < 1.5 GeV/c^2 with 85.9 fb^-1 of data collected at sqrt(s)=10.58 GeV and 10.52 GeV with the Belle detector. A clear signal for the f_0 lr 980 resonance is observed. From a fit to the mass spectrum, the resonance's mass, pi^+ pi^- and two-photon decay widths are found to be 985.6^+1.2 _-1.5(stat)^+1.1_-1.6(syst) MeV/c^2, 34.2^+13.9_-11.8(stat)^+8.8_-2.5(syst) MeV, and 205^+95_-83(stat)^+147_-117(syst) eV, respectively.

Note:

6 pages, 3 figures, ICHEP06 conference paper Report-no: BC-661

13.66.Bc
14.40.Gx

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