Measurement of the relative branching ratio of $B_s^0\rightarrow J/\psi f_0(980)$ to $B_s^0\rightarrow J/\psi\phi$

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Date

2012

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American Physical Society

Abstract

We present a measurement of the relative branching fraction, $R_{f_0/\phi}$, of $B^0_s\rightarrow J/\psi f_0(980)$, with $f_0(980)→\pi^+\pi^−$, to the process $B^0_s→J/\psi\phi$, with $ϕ→K^+K^−$. The $J/\psi f_0(980)$ final state corresponds to a $CP$-odd eigenstate of $B^0_s$ that could be of interest in future studies of $CP$ violation. Using $8  \text{fb}^{−1}$ of data recorded with the D0 detector at the Fermilab Tevatron Collider, we find $R_{f_0/\phi}=0.275±0.041(\text{stat})±0.061(\text{syst})$.

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Abazov, V. M., Abbott, B., Acharya, B. S., Adams, M., Adams, T., Alexeev, G. D., . . . Zivkovic, L. (2012). Measurement of the relative branching ratio of $B_s^0\rightarrow J/\psi f_0(980)$ to $B_s^0\rightarrow J/\psi\phi$. Physical Review D - Particles, Fields, Gravitation and Cosmology, 85(1), 011103. http://dx.doi.org/10.1103/PhysRevD.85.011103

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© 2012 American Physical Society.

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Article