Measurement of the ratio $$\mathcal{B}( \mathrm{B}^0_{s} \to \mathrm{J}/\psi\, \mathrm{f}_0(980))/\mathcal{B}(\mathrm{B}^0_{s} \to \mathrm{J}/\psi\, \phi(1020))$$ in pp collisions at $$\sqrt{s}$$ = 7 TeV
The ratio Rf0/φ of the branching fractions of the B ^{0} _{s} meson to the CP-odd eigenstate J/ψ f _{0}(980) and to J/ψ φ(1020) is measured, where J/ψ → µ ^{+}µ ^{-}, f _{0} → 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 R _{f0}/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 R _{f0}/ _{φ}. It is the most precise measurement of the ratio to date.
- Publication Date:
- Report Number(s):
- FERMILAB-PUB-15-025-CMS
Journal ID: ISSN 0370-2693; arXiv eprint number arXiv:1501.06089
- Grant/Contract Number:
- AC02-07CH11359
- Type:
- Published Article
- Journal Name:
- Physics Letters. Section B
- Additional Journal Information:
- Journal Volume: 756; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Research Org:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Contributing Orgs:
- CMS Collaboration
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
- OSTI Identifier:
- 1240030
- Alternate Identifier(s):
- OSTI ID: 1221238
Khachatryan, Vardan. Measurement of the ratio $\mathcal{B}( \mathrm{B}^0_{s} \to \mathrm{J}/\psi\, \mathrm{f}_0(980))/\mathcal{B}(\mathrm{B}^0_{s} \to \mathrm{J}/\psi\, \phi(1020))$ in pp collisions at $\sqrt{s}$ = 7 TeV. United States: N. p.,
Web. doi:10.1016/j.physletb.2016.02.047.
Khachatryan, Vardan. Measurement of the ratio $\mathcal{B}( \mathrm{B}^0_{s} \to \mathrm{J}/\psi\, \mathrm{f}_0(980))/\mathcal{B}(\mathrm{B}^0_{s} \to \mathrm{J}/\psi\, \phi(1020))$ in pp collisions at $\sqrt{s}$ = 7 TeV. United States. doi:10.1016/j.physletb.2016.02.047.
Khachatryan, Vardan. 2016.
"Measurement of the ratio $\mathcal{B}( \mathrm{B}^0_{s} \to \mathrm{J}/\psi\, \mathrm{f}_0(980))/\mathcal{B}(\mathrm{B}^0_{s} \to \mathrm{J}/\psi\, \phi(1020))$ in pp collisions at $\sqrt{s}$ = 7 TeV". United States.
doi:10.1016/j.physletb.2016.02.047.
@article{osti_1240030,
title = {Measurement of the ratio $\mathcal{B}( \mathrm{B}^0_{s} \to \mathrm{J}/\psi\, \mathrm{f}_0(980))/\mathcal{B}(\mathrm{B}^0_{s} \to \mathrm{J}/\psi\, \phi(1020))$ in pp collisions at $\sqrt{s}$ = 7 TeV},
author = {Khachatryan, Vardan},
abstractNote = {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.},
doi = {10.1016/j.physletb.2016.02.047},
journal = {Physics Letters. Section B},
number = ,
volume = 756,
place = {United States},
year = {2016},
month = {2}
}