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$\mathrm{\Delta }{\mathrm{\Gamma }}_{{\mathit{B}}_s^0}/{\mathrm{\Gamma }}_{{\mathit{B}}_s^0}$

INSPIRE   PDGID:

S086DRA

${\mathrm{\Gamma }}_{{\mathit{B}}_s^0}$ and $\mathrm{\Delta }{\mathrm{\Gamma }}_{{\mathit{B}}_s^0}$ are the decay rate average and difference between two ${\mathit{B}}_s^0$ $\mathit{C}P$ eigenstates (light $-$ heavy). "OUR EVALUATION" is derived from the averages of ${\mathrm{\Gamma }}_{{\mathit{B}}_s^0}$ and $\mathrm{\Delta }{\mathrm{\Gamma }}_{{\mathit{B}}_s^0}$ (and their correlation).

VALUE CL% DOCUMENT ID TECN  COMMENT $\mathbf{0.127}\pm \mathbf{0.007}$ OUR EVALUATION  $$(Produced by HFLAV) • • We do not use the following data for averages, fits, limits, etc. • • $0.090$ $\pm 0.009$ $\pm 0.023$ 1 ESEN 2013 BELL ${\mathit{e}}^{+}$ ${\mathit{e}}^{-}$ $\to$ $\mathit{{\rm Y}}(5S)$ 2 AAIJ 2012 D LHCB $\mathit{p}\mathit{p}$ at 7 TeV 3 AALTONEN 2012 D CDF $\mathit{p}\bar{\mathit{p}}$ at 1.96 TeV 4 ABAZOV 2012 D D0 $\mathit{p}\bar{\mathit{p}}$ at 1.96 TeV $0.147$ ${}_{-0.030}^{+0.036}$ ${}_{-0.041}^{+0.042}$ 1 ESEN 2010 BELL ${\mathit{e}}^{+}$ ${\mathit{e}}^{-}$ $\to$ $\mathit{{\rm Y}}(5S)$ $0.072$ $\pm 0.021$ $\pm 0.022$ 5 ABAZOV 2009 I D0 $\mathit{p}\bar{\mathit{p}}$ at 1.96 TeV $>0.012$ 95 5 AALTONEN 2008 F CDF $\mathit{p}\bar{\mathit{p}}$ at 1.96 TeV $0.116$ ${}_{-0.10}^{+0.09}$ $\pm 0.010$ 6 AALTONEN 2008 J CDF Repl. by AALTONEN 2012D $0.079$ ${}_{-0.035}^{+0.038}$ ${}_{-0.030}^{+0.031}$ 5 ABAZOV 2007 Y D0 Repl. by ABAZOV 2009I $0.24$ ${}_{-0.38}^{+0.28}$ ${}_{-0.04}^{+0.03}$ 6, 7 ABAZOV 2005 W D0 Repl. by ABAZOV 2008AM $0.65$ ${}_{-0.33}^{+0.25}$ $\pm 0.01$ 6 ACOSTA 2005 CDF Repl. by AALTONEN 2008J $<0.46$ 95 8 ABREU 2000 Y DLPH ${\mathit{e}}^{+}$ ${\mathit{e}}^{-}$ $\to$ $\mathit{Z}$ $<0.69$ 95 9 ABREU,P 2000 G DLPH ${\mathit{e}}^{+}$ ${\mathit{e}}^{-}$ $\to$ $\mathit{Z}$ $0.25$ ${}_{-0.14}^{+0.21}$ 10 BARATE 2000 K ALEP ${\mathit{e}}^{+}$ ${\mathit{e}}^{-}$ $\to$ $\mathit{Z}$ $<0.83$ 95 11 ABE 1999 D CDF $\mathit{p}\bar{\mathit{p}}$ at $1.8$ TeV $<0.67$ 95 12 ACCIARRI 1998 S L3 ${\mathit{e}}^{+}$ ${\mathit{e}}^{-}$ $\to$ $\mathit{Z}$ 1  Assumes $\mathit{C}P$ violation is negligible. 2  Measured using the time-dependent angular analysis of ${\mathit{B}}_s^0$ $\to$ $\mathit{J}/\psi \varphi$ decays. 3  Uses the time-dependent angular analysis of ${\mathit{B}}_s^0$ $\to$ $\mathit{J}/\psi \varphi$ decays and assuming $\mathit{C}P$-violating angle ${\beta }_s$( ${\mathit{B}}^0$ $\to$ $\mathit{J}/\psi \varphi$) = 0.02. 4  Measured using fully reconstructed ${\mathit{B}}_s$ $\to$ $\mathit{J}/\psi \varphi$ decays. 5  Assumes 2 B( ${\mathit{B}}_s^0$ $\to$ ${\mathit{D}}_s^{(\ast )}{\mathit{D}}_s^{(\ast )}$) $\simeq$ $\mathrm{\Delta }\mathrm{\Gamma }{}_s^{CP}$ $/$ ${\mathrm{\Gamma }}_s$. 6  Measured using the time-dependent angular analysis of ${\mathit{B}}_s^0$ $\to$ $\mathit{J}/\psi \varphi$ decays. 7  Uses $|A_0{|}^2-|A_{\parallel }{|}^2=0.355$ $\pm 0.066$ from ACOSTA 2005. 8  Uses ${\mathit{D}}_s^{-}{\ell }^{+}$, and $\varphi {\ell }^{+}$ vertices. 9  Measured using ${\mathit{D}}_s$ hadron vertices. 10  Uses $\varphi \varphi$ correlations from ${\mathit{B}}_s^0$ $\to$ ${\mathit{D}}_s^{(\ast )+}{\mathit{D}}_s^{(\ast )-}$. 11  ABE 1999D assumes ${\tau }_{{\mathit{B}}_s^0}$= $1.55$ $\pm 0.05$ps. 12  ACCIARRI 1998S assumes ${\tau }_{{\mathit{B}}_s^0}$= $1.49$ $\pm 0.06$ps and PDG 1998 values of $\mathit{b}$production fraction.

References

ESEN 2013 PR D87 031101 Precise Measurement of the Branching Fractions for ${\mathit{B}}_s^0$ $\to$ $\text{Extra close brace or missing open brace}$ and First Measurement of the ${\mathit{D}}_s^{\ast +}{\mathit{D}}_s^{\ast -}$ Polarization using ${\mathit{e}}^{+}{\mathit{e}}^{-}$ Collisions AAIJ 2012D PRL 108 101803 Measurement of the CP-Violating Phase ${\varphi }_s$ in the Decay ${\mathit{B}}_s^0$ $\to$ $\mathit{J}/\psi \varphi$ AALTONEN 2012D PR D85 072002 Measurement of the $\mathit{C}P$-Violating Phase $\beta {}_s^{\mathit{J}/\psi \varphi }$ in ${\mathit{B}}_s^0$ $\to$ $\mathit{J}/\psi \varphi$ Decays with the CDF II Detector ABAZOV 2012D PR D85 032006 Measurement of the $\mathit{C}P$-Violating Phase $\varphi {}_s^{\mathit{J}/\psi \varphi }$ using the Flavor-Tagged Decay ${\mathit{B}}_s^0$ $\to$ $\mathit{J}/\psi \varphi$ in 8$\mathrm{fb}{}^{-1}$ of $\mathit{p}\bar{\mathit{p}}$ Collisions ESEN 2010 PRL 105 201802 Observation of ${\mathit{B}}_s^0$ $\to$ ${\mathit{D}}_{s^{(\ast )}}^{+}{\mathit{D}}_{s^{(\ast )}}^{-}$ using ${\mathit{e}}^{+}{\mathit{e}}^{-}$ Collisions and a Determination of the ${\mathit{B}}_s-{\bar{\mathit{B}}}_s$ Width Difference $\mathrm{\Delta }{\mathrm{\Gamma }}_s$ ABAZOV 2009I PRL 102 091801 Evidence for the Decay ${\mathit{B}}_s^0$ $\to$ $\text{Extra close brace or missing open brace}$ and a Measurement of $\mathrm{\Delta }\mathrm{\Gamma }{}_s^{\mathit{C}P}/{\mathrm{\Gamma }}_{\mathit{s}}$ AALTONEN 2008J PRL 100 121803 Measurement of Lifetime and Decay-Width Difference in ${\mathit{B}}_s^0$ $\to$ $\mathit{J}/\psi \varphi$ Decays AALTONEN 2008F PRL 100 021803 First Observation of the Decay ${\mathit{B}}_s^0$ $\to$ ${\mathit{D}}_s^{-}{\mathit{D}}_s^{+}$ and Measurement of Its Branching Ratio ABAZOV 2007Y PRL 99 241801 Study of the Decay ${\mathit{B}}_s^0$ $\to$ ${\mathit{D}}_s^{(\ast )}{\mathit{D}}_s^{(\ast )}$ ABAZOV 2005W PRL 95 171801 Measurement of the Lifetime Difference in the ${\mathit{B}}_s^0$ System ACOSTA 2005 PRL 94 101803 Measurement of the Lifetime Difference between ${\mathit{B}}_s$ Mass Eigenstates ABREU 2000Y EPJ C16 555 Measurement of the ${\mathit{B}}_s^0$ Lifetime and Study of ${\mathit{B}}_s^0$ $\to$ ${\bar{\mathit{B}}}_s^0$ Oscillations using ${\mathit{D}}_s\ell$ Events ABREU,P 2000G EPJ C18 229 Study of ${\mathit{B}}_s^0{\bar{\mathit{B}}}_s^0$ Oscillations and ${\mathit{B}}_s^0$ Lifetimes using Hadronic Decays of ${\mathit{B}}_s^0$ Mesons BARATE 2000K PL B486 286 A Study of the Decay Width Difference in the ${\mathit{B}}_s^0$ $-$ ${\bar{\mathit{B}}}_s^0$ System using $\varphi \varphi$ Correlations ABE 1999D PR D59 032004 Measurement of the ${\mathit{B}}_s^0$ Meson Lifetime using Semileptonic Decays ACCIARRI 1998S PL B438 417 Upper Limit on the Lifetime Difference of Short- and Long-Lived ${\mathit{B}}_s^0$ Mesons