Study of π0 pair production in single-tag two-photon collisions

The Belle Collaboration

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

We report a measurement of the differential cross section of π0 pair production in single-tag two-photon collisions, γ∗γ→π0π0, in e+e- scattering. The cross section is measured for Q2 up to 30 GeV2, where Q2 is the negative of the invariant mass squared of the tagged photon, in the kinematic range 0.5 GeV<W<2.1 GeV and |cosθ∗|<1.0 for the total energy and pion scattering angle, respectively, in the γ∗γ center-of-mass system. The results are based on a data sample of 759 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The transition form factor of the f0(980) and that of the f2(1270) with the helicity-0, -1, and -2 components separately are measured for the first time and are compared with theoretical calculations.

Original languageEnglish
Article number032003
JournalPhysical Review D
Volume93
Issue number3
DOIs
Publication statusPublished - 2016 Feb 18

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Study of π0 pair production in single-tag two-photon collisions'. Together they form a unique fingerprint.

Cite this