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CERN Document Server 309 elementer funnet  1 - 10nesteslutt  gå til element: Søket tok 0.60 sekunder. 
1.
A precise measurement of the $B^0$ meson oscillation frequency / LHCb collaboration
The oscillation frequency, $\Delta m_d$, of $B^0$ mesons is measured using semileptonic decays with a $D^-$ or $D^{*-}$ meson in the final state, in a data sample of $pp$ collisions collected by the LHCb detector corresponding to an integrated luminosity of 3.0$\mbox{fb}^{-1}$. A combination of the two decay modes gives $\Delta m_d = (505.0 \pm 2.1 \pm 1.0) \rm \,ns^{-1}$, where the first uncertainty is statistical and the second is systematic. [...]
arXiv:1604.03475; LHCB-PAPER-2015-031; CERN-EP-2016-084; LHCB-PAPER-2015-031; CERN-EP-2016-084.- Geneva : CERN, 2016-07-21 - 27 p. - Published in : Eur. Phys. J. C 76 (2016) 412 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Figures, tables and other information
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2.
Observation of $ \Lambda_b^0 \to \psi(2S)pK^-$ and $ \Lambda_b^0 \to J/\psi \pi^+ \pi^- pK^-$ decays and a measurement of the $\Lambda_b^0$ baryon mass / LHCb collaboration
The decays $ \Lambda_b^0 \to \psi(2S)pK^-$ and $ \Lambda_b^0 \to J/\psi \pi^+ \pi^- pK^-$ are observed in a data sample corresponding to an integrated luminosity of 3fb$^{-1}$, collected in proton-proton collisions at 7 and 8TeV centre-of-mass energies by the LHCb detector. The $\psi(2S)$ mesons are reconstructed through the decay modes $\psi(2S)\to\mu^+\mu^-$ and $\psi(2S)\to J/\psi\pi^+\pi^-$ [...]
arXiv:1603.06961; CERN-EP-2016-070; LHCB-PAPER-2015-060; CERN-EP-2016-070; LHCB-PAPER-2015-060.- Geneva : CERN, 2016-05-23 - 20 p. - Published in : JHEP 05 (2016) 132 Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; Springer Open Access article: PDF; External link: Figures, tables and other information
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3.
Observation of $B^0_s\to\bar{D}^0 K^0_S$ and evidence for $B^0_s\to\bar{D}^{*0} K^0_S$ decays / LHCb Collaboration
The first observation of the $B^0_s\to\bar{D}^0 K^0_S$ decay mode and evidence for the $B^0_s\to\bar{D}^{*0} K^0_S$ decay mode are reported. The data sample corresponds to an integrated luminosity of 3.0 $\text{fb}^{-1}$ collected in $pp$ collisions by LHCb at center-of-mass energies of 7 and 8 TeV. [...]
arXiv:1603.02408; CERN-EP-2016-053; LHCB-PAPER-2015-050; LHCB-PAPER-2015-050; CERN-EP-2016-053.- Geneva : CERN, 2016-04-21 - 9 p. - Published in : Phys. Rev. Lett. 116 (2016) 161802 APS Open Access article: PDF; Fulltext: 10.1103_PhysRevLett.116.161802 - PDF; arXiv:1603.02408 - PDF; Related data file(s): ZIP; External link: Figures, tables and other information
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4.
Measurement of the $B_{s}^{0} \rightarrow D_{s}^{(*)+}D_{s}^{(*)-}$ branching fractions / LHCb collaboration
The branching fraction of the decay $B_{s}^{0} \rightarrow D_{s}^{(*)+}D_{s}^{(*)-}$ is measured using $pp$ collision data corresponding to an integrated luminosity of $1.0fb^{-1}$, collected using the LHCb detector at a centre-of-mass energy of $7$TeV. It is found to be \begin{align*} {\mathcal{B}}(B_{s}^{0}\rightarrow~D_{s}^{(*)+}D_{s}^{(*)-}) = (3.05 \pm 0.10 \pm 0.20 \pm 0.34)\%, \end{align*} where the uncertainties are statistical, systematic, and due to the normalisation channel, respectively. [...]
arXiv:1602.07543; CERN-EP-2016-028; LHCB-PAPER-2015-053; CERN-EP-2016-028; LHCB-PAPER-2015-053.- Geneva : CERN, 2016-05-20 - 11 p. - Published in : Phys. Rev. D 93 (2016) 092008 APS Open Access article: PDF; Fulltext: 10.1103_PhysRevD.93.092008 - PDF; arXiv:1602.07543 - PDF; Related data file(s): ZIP; External link: Figures, tables and other information
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5.
A new algorithm for identifying the flavour of $B_s^0$ mesons at LHCb / LHCb collaboration
A new algorithm for the determination of the initial flavour of $B_s^0$ mesons is presented. The algorithm is based on two neural networks and exploits the $b$ hadron production mechanism at a hadron collider. [...]
arXiv:1602.07252; LHCB-PAPER-2015-056; CERN-EP-2016-030; LHCB-PAPER-2015-056; CERN-EP-2016-030.- Geneva : CERN, 2016-05-17 - 26 p. - Published in : JINST 11 (2016) P05010 Fulltext: 10.1088_1748-0221_11_05_P05010 - PDF; arXiv:1602.07252 - PDF; IOP Open Access article: PDF; Preprint: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Figures, tables and other information
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6.
First observation of $D^0- \bar D^0$ oscillations in $D^0 \to K^+\pi^-\pi^+\pi^-$ decays and measurement of the associated coherence parameters / LHCb Collaboration
Charm meson oscillations are observed in a time-dependent analysis of the ratio of $D^0\to K^+\pi^-\pi^+\pi^-$ to $D^0\to K^-\pi^+\pi^-\pi^+$ decay rates, using data corresponding to an integrated luminosity of $3.0\,{\rm fb}^{-1}$ recorded by the LHCb experiment. The measurements presented are sensitive to the phase-space averaged ratio of doubly Cabibbo-suppressed to Cabibbo-favoured amplitudes $r_{D}^{K3\pi}$ and the product of the coherence factor $R_{D}^{K3\pi}$ and a charm mixing parameter $y^{'}_{K3\pi}$. [...]
arXiv:1602.07224; LHCB-PAPER-2015-057; CERN-EP-2016-021; LHCB-PAPER-2015-057; CERN-EP-2016-021.- Geneva : CERN, 2016-06-17 - 10 p. - Published in : Phys. Rev. Lett. 116 (2016) 241801 APS Open Access article: PDF; Fulltext: 10.1103_PhysRevLett.116.241801 - PDF; LHCb-PAPER-2015-057 - ZIP; arXiv:1602.07224 - PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Figures, tables and other information
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7.
Constraints on the unitarity triangle angle $\gamma$ from Dalitz plot analysis of $B^0 \to D K^+ \pi^-$ decays / LHCb collaboration
The first study is presented of CP violation with an amplitude analysis of the Dalitz plot of $B^0 \to D K^+ \pi^-$ decays, with $D \to K^+ \pi^-$, $K^+ K^-$ and $\pi^+ \pi^-$. The analysis is based on a data sample corresponding to $3.0\,{\rm fb}^{-1}$ of $pp$ collisions collected with the LHCb detector. [...]
arXiv:1602.03455; LHCB-PAPER-2015-059; CERN-EP-2016-024; LHCB-PAPER-2015-059; CERN-EP-2016-024.- Geneva : CERN, 2016-06-30 - 19 p.
APS Open Access article: PDF; APS Open Access erratum: PDF; Fulltext: 10.1103_PhysRevD.93.112018 - PDF; arXiv:1602.03455 - PDF; Related data file(s): ZIP; External link: Figures, tables and other information
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8.
Measurement of the difference of time-integrated CP asymmetries in $D^0 \rightarrow K^{-} K^{+} $ and $D^0 \rightarrow \pi^{-} \pi^{+} $ decays / LHCb Collaboration
A search for CP violation in $D^0 \rightarrow K^{-} K^{+} $ and $D^0 \rightarrow \pi^{-} \pi^{+} $ decays is performed using $pp$ collision data, corresponding to an integrated luminosity of $3~fb^{-1}$, collected using the LHCb detector at centre-of-mass energies of 7 and 8$~$TeV. The flavour of the charm meson is inferred from the charge of the pion in $D^{*+}\rightarrow D^0\pi^+$ and $D^{*-}\rightarrow \bar{D^0}\pi^{-}$ decays. [...]
arXiv:1602.03160; LHCB-PAPER-2015-055; CERN-EP-2016-022; LHCB-PAPER-2015-055; CERN-EP-2016-022.- Geneva : CERN, 2016-05-09 - 10 p. - Published in : Phys. Rev. Lett. 116 (2016) 191601 APS Open Access article: PDF; Fulltext: 10.1103_PhysRevLett.116.191601 - PDF; arXiv:1602.03160 - PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Figures, tables and other information
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9.
Study of $\psi(2S)$ production and cold nuclear matter effects in $p$Pb collisions at $\sqrt {s_{NN}} = 5$ TeV / LHCb collaboration
The production of $\psi(2S)$ mesons is studied in dimuon final states using proton-lead collision data collected by the LHCb detector. The data sample corresponds to an integrated luminosity of $1.6~\mathrm{nb}^{-1}$. [...]
arXiv:1601.07878; LHCB-PAPER-2015-058; CERN-EP-2016-011; LHCb-PAPER-2015-058; CERN-EP-2016-011; LHCB-PAPER-2015-058; CERN-EP-2016-011.- Geneva : CERN, 2016-03-18 - 23 p. - Published in : JHEP 03 (2016) 133 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Figures, tables and other information
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10.
Observation of the $B_s^0 \rightarrow J/\psi \phi \phi$ decay / LHCb collaboration
The $B_s^0 \rightarrow J/\psi \phi \phi$ decay is observed in $pp$ collision data corresponding to an integrated luminosity of 3 fb$^{-1}$ recorded by the LHCb detector at centre-of-mass energies of 7 TeV and 8 TeV. This is the first observation of this decay channel, with a statistical significance of 15 standard deviations. [...]
arXiv:1601.05284; LHCB-PAPER-2015-033; CERN-EP-2016-006; LHCB-PAPER-2015-033; CERN-EP-2016-006.- Geneva : CERN, 2016 - 20 p. - Published in : JHEP 03 (2016) 040 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Figures, tables and other information
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