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Observation of the eta(c)(2S) in Exclusive B-->KK(S)K-pi(+) Decays.
- Source :
-
Physical review letters [Phys Rev Lett] 2002 Sep 02; Vol. 89 (10), pp. 102001. Date of Electronic Publication: 2002 Aug 19. - Publication Year :
- 2002
-
Abstract
- We report the observation of a narrow peak in the K(S)K-pi(+) invariant mass distribution in a sample of exclusive B-->KK(S)K-pi(+) decays collected with the Belle detector at the KEKB asymmetric e(+)e(-) collider. The measured mass of the peak is M=3654+/-6(stat)+/-8(syst) MeV/c(2), and we place a 90% confidence level upper limit on the width of Gamma<55 MeV/c(2). The properties agree with heavy-quark potential model expectations for the eta(c)(2S) meson, the n=2 singlet S charmonium state.
Details
- Language :
- English
- ISSN :
- 0031-9007
- Volume :
- 89
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 12225186
- Full Text :
- https://doi.org/10.1103/PhysRevLett.89.102001