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Observation of $B^0 \to \bar{D}^0 K^+ K^-$ and evidence of $B^0_s \to \bar{D}^0 K^+ K^-$ / LHCb Collaboration
The first observation of the decay $B^{0} \to \overline{D}^{0}K^{+}K^{-}$ is reported from an analysis of $0.62 \ \mathrm{fb}^{-1}$ of $pp$ collision data collected with the LHCb detector. Its branching fraction is measured relative to that of the topologically similar decay $B^{0} \to \overline{D}^{0}\pi^{+}\pi^{-}$ to be $\frac{ {\cal B}\left(B^{0} \to \overline{D}^{0}K^{+}K^{-}\right)}{ {\cal B}\left(B^{0} \to \overline{D}^{0}\pi^{+}\pi^{-}\right)} = 0.056 \pm 0.011 \pm 0.007$, where the first uncertainty is statistical and the second is systematic. [...]
arXiv:1207.5991; LHCB-PAPER-2012-018; CERN-PH-EP-2012-198; LHCB-PAPER-2012-018; CERN-PH-EP-2012-198.- Geneva : CERN, 2012-09-26 - 15 p. - Published in : Phys. Rev. Lett. 109 (2012) 131801 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; Supplementary data: ZIP; External link: Preprint

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(86)

Measurement of the forward energy flow in $pp$ collisions at $\sqrt{s}$= 7 TeV / LHCb Collaboration
The energy flow created in pp collisions at $\sqrt{s}$=7 TeV is studied within the pseudorapidity range 1.9<eta<4.9 with data collected by the LHCb experiment. The measurements are performed for inclusive minimum-bias interactions, hard scattering processes and events with an enhanced or suppressed diffractive contribution. [...]
arXiv:1212.4755; CERN-PH-EP-2012-346; LHCB-PAPER-2012-034; CERN-PH-EP-2012-346; LHCB-PAPER-2012-034.- Geneva : CERN, 2013 - 17 p. - Published in : Eur. Phys. J. C 73 (2013) 2421 APS published version, local copy: PDF; Fulltext: PDF; Related data (files): ZIP; Springer Open Access article: PDF; External link: Rivet analyses reference

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(86)

First observation of the decay $B^+ \to \pi^+ \mu^+\mu^-$ / LHCb Collaboration
A discovery of the rare decay $B^{+} \rightarrow \pi^{+} \mu^{+} \mu^{-}$ is presented. This decay is observed for the first time, with 5.2 $\sigma$ significance. [...]
arXiv:1210.2645; LHCB-PAPER-2012-020; CERN-PH-EP-2012-284; LHCB-PAPER-2012-020; CERN-PH-EP-2012-284.- Geneva : CERN, 2012 - 20 p. - Published in : JHEP 12 (2012) 125 Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint

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Measurement of the $C\!P$ asymmetry in $B^0 \to K^{*0} \mu^+ \mu^-$ decays / LHCb Collaboration
A measurement of the $C\!P$ asymmetry in $B^0 \rightarrow K^{*0} \mu^+ \mu^-$ decays is presented, based on 1.0$\mbox{\,fb}^{-1}$ of $pp$ collision data recorded by the LHCb experiment during 2011. The measurement is performed in six bins of invariant mass squared of the $\mu^+\mu^-$ pair, excluding the $\mathrm{J}\mskip -3mu/\mskip -2mu\psi\mskip 2mu$ and $\psi(2S)$ resonance regions. [...]
arXiv:1210.4492; LHCB-PAPER-2012-021; CERN-PH-EP-2012-302; LHCB-PAPER-2012-021; CERN-PH-EP-2012-302.- Geneva : CERN, 2013-01-17 - 8 p. - Published in : Phys. Rev. Lett. 110 (2013) 031801 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint

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Measurement of the cross-section for $Z\to e^+e^-$ production in $pp$ collisions at $\sqrt{s} =7$ TeV / LHCb Collaboration
A measurement of the cross-section for pp$ \rightarrow$Z$ \rightarrow$e$^+$e$^-$ is presented using data at $\sqrt{s}=7$ TeV corresponding to an integrated luminosity of 0.94 fb$^{-1}$. The process is measured within the kinematic acceptance $p_{\mathrm{T}}>20$GeV/$c$ and $2<\eta<4.5$ for the daughter electrons and dielectron invariant mass in the range 60-120 GeV/$c^2$. [...]
arXiv:1212.4620; CERN-PH-EP-2012-363; LHCB-PAPER-2012-036; CERN-PH-EP-2012-363; LHCB-PAPER-2012-036.- Geneva : CERN, 2013 - 22 p. - Published in : JHEP 02 (2013) 106 APS published version, local copy: PDF; Fulltext: arXiv:1212.4620 - PDF; LHCb-PAPER-2012-036 - PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Rivet analyses reference

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(86)

Measurement of the $B^0_s \rightarrow J/\psi \bar{K}^{*0}$ branching fraction and angular amplitudes / LHCb collaboration
A sample of 114±11 $B_s^0 → J/ψK^-π^+$ signal events obtained with 0.37 fb$^{-1}$ of pp collisions at √s=7 TeV collected by the LHCb experiment is used to measure the branching fraction and polarization amplitudes of the $B_s^0 → J/ψK̅ ^{*0}$ decay, with $K̅ ^{*0} → K^-π^+$. The $K^-π^+$ mass spectrum of the candidates in the $B_s^0$ peak is dominated by the $K̅ ^{*0}$ contribution. [...]
arXiv:1208.0738; CERN-PH-EP-2012-214; LHCB-PAPER-2012-014; CERN-PH-EP-2012-214; LHCB-PAPER-2012-014.- 2012-10-08 - 16 p. - Published in : Phys. Rev. D 86 (2012) 071102 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint

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(86)

Study of $D_{sJ}$ decays to $D^+K^0_{\rm S}$ and $D^0K^+$ final states in $pp$ collisions / LHCb Collaboration
A study of $D^+K_S^0$ and $D^0K^+$ final states is performed in a sample of 1.0 fb$^{-1}$ of $pp$ collision data collected at a centre-of-mass energy of $\sqrt{s}=7$ TeV with the LHCb detector. We confirm the existence of the $D_{s1}^*(2700)^+$ and $D_{sJ}^*(2860)^+$ excited states and measure their masses and widths to be \begin{eqnarray} m(D_{s1}^*(2700)^+) &=& 2709.2 \pm 1.9(\mbox{stat})\pm\,\,\,4.5(\mbox{syst})~{\rm MeV}/c^2,\cr \Gamma(D_{s1}^*(2700)^+) &=& \,\,\,115.8 \pm 7.3(\mbox{stat}) \pm12.1(\mbox{syst})~{\rm MeV}/c^2,\cr m(D_{sJ}^*(2860)^+) &=& 2866.1 \pm 1.0(\mbox{stat}) \pm\,\,\,6.3(\mbox{syst})~{\rm MeV}/c^2,\cr \Gamma(D_{sJ}^*(2860)^+) &=& \,\,\,\,\,\,69.9 \pm 3.2(\mbox{stat}) \pm\,\,\,6.6(\mbox{syst})~{\rm MeV}/c^2.\cr\nonumber \end{eqnarray}
arXiv:1207.6016; CERN-PH-EP-2012-181; LHCB-PAPER-2012-016; CERN-PH-EP-2012-181; LHCB-PAPER-2012-016.- Geneva : CERN, 2012 - 12 p. - Published in : JHEP 10 (2012) 151 Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint

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(86)

Measurement of the $B^0$--$\bar B^0$ oscillation frequency $\Delta m_d$ with the decays $B^0 \to D^- \pi^+$ and $B^0 \to J\ \psi K^{*0}$ / LHCb Collaboration
The $B^0$--$\bar B^0$ oscillation frequency $\Delta m_d$ is measured by the LHCb experiment using a dataset corresponding to an integrated luminosity of $1.0\,$fb$^{-1}$ of proton-proton collisions at $\sqrt{s} = 7\,$TeV, and is found to be $\Delta m_d = 0.5156 \pm 0.0051\,($stat.$) \pm 0.0033\,($syst.$)\,$ps$^{-1}$. The measurement is based on results from analyses of the decays $B^0 \to D^- \pi^+$ ($D^- \to K^+ \pi^- \pi^-$) and $B^0 \to J\ \psi K^{*0}$ ($J\ \psi \to \mu^+ \mu^-$, $K^{*0} \to K^+ \pi^-$) and their charge conjugated modes..
arXiv:1210.6750; LHCB-PAPER-2012-032; CERN-PH-EP-2012-315; LHCB-PAPER-2012-032; CERN-PH-EP-2012-315.- Geneva : CERN, 2013-07-16 - 8 p. - Published in : Phys. Lett. B 719 (2013) 318-325 APS published version, local copy: PDF; Elsevier Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint

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First observation of the decays $\bar{B}^0_{(s)}\to D_s^+K^-\pi^+\pi^-$ and $\bar{B}^0_s\to D_{s1}(2536)^+\pi^-$ / LHCb collaboration
The first observation of the decays $\bar{B}^0_{s}\to D_s^+K^-\pi^+\pi^-$ and $\bar{B}^0\to D_s^+K^-\pi^+\pi^-$ are reported using an integrated luminosity of 1.0 fb$^{-1}$ recorded by the LHCb experiment. The branching fractions, normalized with respect to $\bar{B}^0_{s}\to D_s^+\pi^-\pi^+\pi^-$ and $\bar{B}^0_{s}\to D_s^+K^-\pi^+\pi^-$, respectively, are measured to be $\frac{B(\bar{B}^0_{s}\to D_s^+K^-\pi^+\pi^-)}{B(\bar{B}^0_{s}\to D_s^+\pi^-\pi^+\pi^-)} = (5.2\pm0.5\pm0.3)\times10^{-2}$, $\frac{B(\bar{B}^0\to D_s^+K^-\pi^+\pi^-)}{B(\bar{B}^0_{s}\to D_s^+K^-\pi^+\pi^-)} = 0.54\pm0.07\pm0.07$, where the first uncertainty is statistical and the second is systematic. [...]
arXiv:1211.1541; LHCB-PAPER-2012-033; CERN-PH-EP-2012-327; LHCB-PAPER-2012-033; CERN-PH-EP-2012-327.- 2012 - 17 p. - Published in : Phys. Rev. D 86 (2012) 112005 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint

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Differential branching fraction and angular analysis of the $B^+ \to K^+ \mu^+ \mu^-$ decay / LHCb Collaboration
The angular distribution and differential branching fraction of the decay $B^+ \to K^+ \mu^+\mu^-$ are studied with a dataset corresponding to 1.0 fb$^{-1}$ of integrated luminosity, collected by the LHCb experiment. The angular distribution is measured in bins of dimuon invariant mass squared and found to be consistent with Standard Model expectations. [...]
arXiv:1209.4284; LHCB-PAPER-2012-024; CERN-PH-EP-2012-263; LHCB-PAPER-2012-024; CERN-PH-EP-2012-263.- Geneva : CERN, 2013 - 17 p. - Published in : JHEP 02 (2013) 105 Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint

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