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2016-04-07
08:52
Measurement of the mass and lifetime of the $\Omega_b^-$ baryon / LHCb collaboration
A proton-proton collision data sample, corresponding to an integrated luminosity of 3 fb$^{-1}$ collected by LHCb at $\sqrt{s}=7$ and 8 TeV, is used to reconstruct $63\pm9$ $\Omega_b^-\to\Omega_c^0\pi^-$, $\Omega_c^0\to pK^-K^-\pi^+$ decays. Using the $\Xi_b^-\to\Xi_c^0\pi^-$, $\Xi_c^0\to pK^-K^-\pi^+$ decay mode for calibration, the lifetime ratio and absolute lifetime of the $\Omega_b^-$ baryon are measured to be \begin{align*} \frac{\tau_{\Omega_b^-}}{\tau_{\Xi_b^-}} &= 1.11\pm0.16\pm0.03, \\ \tau_{\Omega_b^-} &= 1.78\pm0.26\pm0.04\pm0.05~{\rm ps}, \end{align*} where the uncertainties are statistical, systematic and from the calibration mode (for $\tau_{\Omega_b^-}$ only). [...]
arXiv:1604.01412; CERN-EP-2016-081; LHCB-PAPER-2016-008.- Geneva : CERN, 2016 - 21 p. - Published in : Phys. Rev. D 93 (2016) 092007 APS Open Access article: PD; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint

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2016-03-08
16:18
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; LHCB-PAPER-2015-050; CERN-EP-2016-053.- Geneva : CERN, 2016 - 16 p. - Published in : Phys. Rev. Lett. 116 (2016) 161802 Fulltext: PDF; Related data file(s): ZIP; External link: Preprint

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2016-03-02
11:22
Observations of $\Lambda_b^0 \to \Lambda K^+\pi^-$ and $\Lambda_b^0 \to \Lambda K^+K^-$ decays and searches for other $\Lambda_b^0$ and $\Xi_b^0$ decays to $\Lambda h^+h^{\prime -}$ final states / LHCb collaboration
A search is performed for the charmless three-body decays of the $\Lambda_b^0$ and $\Xi_b^0$ baryons to the final states $\Lambda h^+h^{\prime -}$, where $h^{(\prime)} = \pi$ or $K$. The analysis is based on a data sample, corresponding to an integrated luminosity of $3 \rm fb^{-1}$ of $pp$ collisions, collected by the LHCb experiment. [...]
arXiv:1603.00413; CERN-EP-2016-038; LHCB-PAPER-2016-004.- Geneva : CERN, 2016 - 24 p. - Published in : J. High Energy Phys. 05 (2016) 081 Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Preprint

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2016-02-25
08:58
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.- Geneva : CERN, 2016 - 20 p. - Published in : Phys. Rev. D 93 (2016) 092008 Fulltext: PDF; Related data file(s): ZIP; External link: Preprint

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2016-02-10
12:29
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.- Geneva : CERN, 2016 - Published in : Phys. Rev. Lett. 116 (2016) 191601 Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Preprint

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2016-01-21
09:02
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.- Geneva : CERN, 2016 - Published in : J. High Energy Phys. 03 (2016) 040 Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint

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2015-05-20
13:08
Leptonic decays in the unitary symmetry scheme / Cabibbo, Nicola (CERN)
1964 - 4 p.
In : International Conference on Fundamental Aspects of Weak Interactions, BNL, Upton, NY, USA, 9 - 11 Sep 1963, pp.299-302

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2015-05-20
13:03
Muon Capture in Hydrogen / Rubbia, C (CERN)
1964 - 15 p.
In : International Conference on Fundamental Aspects of Weak Interactions, BNL, Upton, NY, USA, 9 - 11 Sep 1963, pp.277-291

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2015-05-20
12:58
CERN Neutrino Experiment: Discussion and Preliminary Conclusions / Veltman, M (CERN)
1964
In : International Conference on Fundamental Aspects of Weak Interactions, BNL, Upton, NY, USA, 9 - 11 Sep 1963, pp.160-169

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2015-05-20
11:35
CERN Spark chamber neutrino experiment / Faissner, H (CERN)
1964
In : International Conference on Fundamental Aspects of Weak Interactions, BNL, Upton, NY, USA, 9 - 11 Sep 1963, pp.137-159

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