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
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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
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Author :
language : en
Publisher:
Release Date : 2015
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 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
The ratio $R_{\, \mathrm{f}_0 / \phi}$ of the branching fractions of the $\mathrm{B}^0_{s}$ meson to the CP-odd eigenstate $\mathrm{J}/\psi\, \mathrm{f}_0(980)$ and to $\mathrm{J}/\psi\, \phi(1020)$ is measured, where $\mathrm{J}/\psi \to \mu^+\mu^-$, $\mathrm{f}_0 \to \pi^+\pi^-$, and $\phi \to \mathrm{K}^+\mathrm{K}^-$. 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 $R_{\, \mathrm{f}_0 / \phi} = 0.140 \pm 0.013 \pm 0.018$, where the first uncertainty is statistical and the second is systematic. This result is consistent with theoretical predictions and previous measurements of $R_{\, \mathrm{f}_0 / \phi}$. It is the most precise measurement of the ratio to date.
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
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Author :
language : en
Publisher:
Release Date : 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 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
The ratio Rf0/? of the branching fractions of the B0 s meson to the CP-odd eigenstate J/? f0(980) and to J/? ?(1020) is measured, where J/? → æ +æ -, f0 → ? +? -, and ? → 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/? = 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/?. It is the most precise measurement of the ratio to date.