Study of K-S(0) pair production in single-tag two-photon collisions
- Title
- Study of K-S(0) pair production in single-tag two-photon collisions
- Author
- 천병구
- Keywords
- SCATTERING; BELLE
- Issue Date
- 2018-03
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v. 97, no. 5, Article no. 052003
- Abstract
- We report a measurement of the cross section for K-S(0) pair production in single-tag two-photon collisions, gamma*gamma -> (KSKS0)-K-0, for Q(2) up to 30 GeV2, where Q(2) is the negative of the invariant mass squared of the tagged photon. The measurement covers the kinematic range 1.0 GeV < W < 2.6 GeV and vertical bar cos theta*vertical bar < 1.0 for the total energy and kaon scattering angle, respectively, in the gamma*gamma center-of-mass system. These results are based on a data sample of 759 fb(-1) collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. For the first time, the transition form factor of the f'(2)(1525) meson is measured separately for the helicity-0, -1, and -2 components and also compared with theoretical calculations. We have derived the cross section for the process for W < 2.6 GeV from 121 signal candidate events. Finally, the gamma*gamma partial decay widths of the chi(c0) and chi(c2) mesons are measured as a function of Q(2) based on 10 candidate events in total.
- URI
- https://journals.aps.org/prd/abstract/10.1103/PhysRevD.97.052003https://repository.hanyang.ac.kr/handle/20.500.11754/117934
- ISSN
- 2470-0010; 2470-0029
- DOI
- 10.1103/PhysRevD.97.052003
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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