2012年5月
Measurement of B0→J/ψη(′) and constraint on the η-η′ Mixing angle
Physical Review D - Particles, Fields, Gravitation and Cosmology
- 巻
- 85
- 号
- 9
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1103/PhysRevD.85.091102
We measure the branching fractions of B0→J/ψη( ′) decays with the complete Belle data sample of 772×106 BB̄ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e +e - collider. The results for the branching fractions are: B(B0→J/ψη)=(12.3±1.71. 8±0.7)×10 -6 and B(B0→J/ψη′)<7. 4×10 -6 at 90% confidence level. The η-η′ mixing angle is constrained to be less than 42.2° at 90% confidence level. © 2012 American Physical Society.
- リンク情報
-
- DOI
- https://doi.org/10.1103/PhysRevD.85.091102
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000303659200001&DestApp=WOS_CPL
- URL
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84860752440&origin=inward
- ID情報
-
- DOI : 10.1103/PhysRevD.85.091102
- ISSN : 1550-7998
- SCOPUS ID : 84860752440
- Web of Science ID : WOS:000303659200001