Measurement of the ratio in pp collisions at
Journal Article
·
· Physics Letters B
The ratio Rf0/φ of the branching fractions of the B0 s meson to the CP-odd eigenstate J/ψ f0(980) and to J/ψ φ(1020) is measured, where J/ψ → µ +µ -, f0 → π +π -, and φ → K+K-. The analysis is based on a data sample of pp collisions at a centre-of-mass energy of 7 TeV, collected by the CMS experiment, corresponding to an integrated luminosity of 5.3 fb-1 . The result is Rf0/φ = 0.140 ± 0.013 ± 0.018, where the first uncertainty is statistical and the second is systematic. This result is consistent with theoretical predictions and previous measurements of Rf0/φ. It is the most precise measurement of the ratio to date.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- CMS Collaboration
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1240030
- Alternate ID(s):
- OSTI ID: 1221238
- Report Number(s):
- FERMILAB-PUB-15-025-CMS; S037026931600143X; PII: S037026931600143X
- Journal Information:
- Physics Letters B, Journal Name: Physics Letters B Vol. 756 Journal Issue: C; ISSN 0370-2693
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- Netherlands
- Language:
- English
Cited by: 4 works
Citation information provided by
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Web of Science
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