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CERN Document Server 13 záznamov nájdených  1 - 10ďalší  skoč na záznam: Hľadanie trvalo 0.82 sekúnd. 
1.
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
2.
Measurement of the branching fraction ratio $\mathcal{B}(B_c^+ \rightarrow \psi(2S)\pi^+)/\mathcal{B}(B_c^+ \rightarrow J/\psi \pi^+)$ / LHCb collaboration
Using $pp$ collision data collected by LHCb at center-of-mass energies $\sqrt{s}$ = 7 TeV and 8 TeV, corresponding to an integrated luminosity of 3 fb$^{-1}$, the ratio of the branching fraction of the $B_c^+ \rightarrow \psi(2S)\pi^+$ decay relative to that of the $B_c^+ \rightarrow J/\psi\pi^+$ decay is measured to be 0.268 $\pm$ 0.032 (stat) $\pm$ 0.007 (syst) $\pm$ 0.006 (BF). The first uncertainty is statistical, the second is systematic, and the third is due to the uncertainties on the branching fractions of the $J/\psi \rightarrow \mu^+\mu^-$ and $\psi(2S) \rightarrow \mu^+\mu^-$ decays. [...]
arXiv:1507.03516; CERN-PH-EP-2015-167; LHCB-PAPER-2015-024; CERN-PH-EP-2015-167; LHCB-PAPER-2015-024.- Geneva : CERN, 2015-10-20 - 10 p. - Published in : Phys. Rev. D 92 (2015) 072007 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Preprint
3.
Angular analysis and differential branching fraction of the decay $B^0_s\to\phi\mu^+\mu^-$ / LHCb collaboration
An angular analysis and a measurement of the differential branching fraction of the decay $B^0_s\to\phi\mu^+\mu^-$ are presented, using data corresponding to an integrated luminosity of $3.0\, {\rm fb}^{-1}$ of $pp$ collisions recorded by the LHCb experiment at $\sqrt{s} = 7$ and $8\, {\rm TeV}$. Measurements are reported as a function of $q^{2}$, the square of the dimuon invariant mass and results of the angular analysis are found to be consistent with the Standard Model. [...]
arXiv:1506.08777; CERN-PH-EP-2015-145; LHCB-PAPER-2015-023; CERN-PH-EP-2015-145; LHCB-PAPER-2015-023.- Geneva : CERN, 2015-09-25 - 34 p. - Published in : JHEP 09 (2015) 179 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; Springer Open Access article: PDF;
4.
First observation of the decay $B_{s}^{0} \to K_{S}^{0} K^{*}(892)^{0}$ / LHCb collaboration
A search for $B_{(s)}^{0} \to K_{S}^{0} K^{*}(892)^{0}$ decays is performed using $pp$ collision data, corresponding to an integrated luminosity of $1.0~\text{fb}^{-1}$, collected with the LHCb detector at a centre-of-mass energy of $7~\text{TeV}$. The $B_{s}^{0} \to K_{S}^{0} K^{*}(892)^{0}$ decay is observed for the first time, with a significance of 7.1 standard deviations. [...]
arXiv:1506.08634; CERN-PH-EP-2015-144; LHCB-PAPER-2015-018; CERN-PH-EP-2015-144; LHCB-PAPER-2015-018.- Geneva : CERN, 2016-01-04 - 19 p. - Published in : JHEP 01 (2016) 012 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Related data files(s): ZIP; Springer Open Access article: PDF; External link: Figures, tables and other information
5.
Measurement of the ratio of branching fractions $\mathcal{B}(\overline{B}^0 \to D^{*+}\tau^{-}\overline{\nu}_{\tau})/\mathcal{B}(\overline{B}^0 \to D^{*+}\mu^{-}\overline{\nu}_{\mu})$ / LHCb Collaboration
The branching fraction ratio $\mathcal{R}(D^{*}) \equiv \mathcal{B}(\overline{B}^0 \to D^{*+}\tau^{-}\overline{\nu}_{\tau})/\mathcal{B}(\overline{B}^0 \to D^{*+}\mu^{-}\overline{\nu}_{\mu})$ is measured using a sample of proton-proton collision data corresponding to 3.0 fb$^{-1}$ of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode $\tau^{-} \to \mu^{-}\overline{\nu}_{\mu}\nu_{\tau}$. [...]
arXiv:1506.08614; CERN-PH-EP-2015-150; LHCB-PAPER-2015-025; CERN-PH-EP-2015-150; LHCb-PAPER-2015-025; LHCB-PAPER-2015-025; CERN-PH-EP-2015-150.- Geneva : CERN, 2015-09-09 - 10 p.
APS Open Access Publisher's Note: PDF; APS Open Access article: PDF; Fulltext: arXiv:1506.08614 - PDF; 1506.08614 - PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External links: livescience article; Scientific American article
6.
First observation of top quark production in the forward region / LHCb collaboration
Top quark production in the forward region in proton-proton collisions is observed for the first time. The $W\!+\!b$ final state with $W\to\mu\nu$ is reconstructed using muons with a transverse momentum, $p_{\rm T}$, larger than 25 GeV in the pseudorapidity range $2.0<\eta<4.5$. [...]
arXiv:1506.00903; LHCB-PAPER-2015-022; CERN-PH-EP-2015-132; LHCB-PAPER-2015-022; CERN-PH-EP-2015-132.- Geneva : CERN, 2015-09-08 - 10 p. - Published in : Phys. Rev. Lett. 115 (2015) 112001 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
7.
Measurement of the exclusive $\Upsilon$ production cross-section in $pp$ collisions at $\sqrt{s}=$7 TeV and 8 TeV / LHCb collaboration
A study is presented of central exclusive production of $\Upsilon(nS)$ states, where the $\Upsilon(nS)$ resonances decay to the $\mu^+\mu^-$ final state, using $pp$ collision data recorded by the LHCb experiment. The cross-section is measured in the rapidity range $2 < y (\Upsilon) < 4.5$ where the muons are reconstructed in the pseudorapidity range $2<\eta(\mu^\pm)<4.5$. [...]
arXiv:1505.08139; LHCB-PAPER-2015-011; CERN-PH-EP-2015-123; LHCB-PAPER-2015-011; CERN-PH-EP-2015-123.- Geneva : CERN, 2015-09-14 - 21 p. - Published in : JHEP 09 (2015) 084 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF;
8.
Study of $B^{-}\to DK^-\pi^+\pi^-$ and $B^-\to D\pi^-\pi^+\pi^-$ decays and determination of the CKM angle $\gamma$ / LHCb collaboration
We report a study of the suppressed $B^{-}\to DK^-\pi^+\pi^-$ and favored $B^-\to D\pi^-\pi^+\pi^-$ decays, where the neutral $D$ meson is detected through its decays to the $K^{\mp}\pi^{\pm}$ and $CP$-even $K^+K^-$ and $\pi^+\pi^-$ final states. The measurement is carried out using a proton-proton collision data sample collected by the LHCb experiment, corresponding to an integrated luminosity of 3.0 fb$^{-1}$. [...]
arXiv:1505.07044; LHCB-PAPER-2015-020; CERN-PH-EP-2015-127; LHCB-PAPER-2015-020; CERN-PH-EP-2015-127.- Geneva : CERN, 2015-12-17 - 20 p. - Published in : Phys. Rev. D 92 (2015) 112005 APS Open Access article: PDF; Fulltext: arXiv:1505.07044 - PDF; 10.1103_PhysRevD.92.112005 - PDF; Related data file(s): ZIP; External link: Figures, tables and other information
9.
Study of $W$ boson production in association with beauty and charm / LHCb collaboration
The associated production of a $W$ boson with a jet originating from either a light parton or heavy-flavor quark is studied in the forward region using proton-proton collisions. The analysis uses data corresponding to integrated luminosities of 1.0 and $2.0\,{\rm fb}^{-1}$ collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, respectively. [...]
arXiv:1505.04051; LHCB-PAPER-2015-021; CERN-PH-EP-2015-118; LHCB-PAPER-2015-021; CERN-PH-EP-2015-118.- Geneva : CERN, 2015-09-08 - 16 p. - Published in : Phys. Rev. D 92 (2015) 052001 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
10.
Search for the $\Lambda_b^0 \rightarrow \Lambda \eta^\prime$ and $\Lambda_b^0\rightarrow \Lambda \eta$ decays with the LHCb detector / LHCb collaboration
A search is performed for the as yet unobserved baryonic $\Lambda_b^0 \rightarrow \Lambda \eta^\prime$ and $\Lambda_b^0 \rightarrow \Lambda \eta$ decays with 3$fb^{-1}$ of proton-proton collision data recorded by the LHCb experiment. The $B^0 \rightarrow K_S^0 \eta^\prime$ decay is used as a normalisation channel. [...]
arXiv:1505.03295; LHCB-PAPER-2015-019; CERN-PH-EP-2015-112; LHCB-PAPER-2015-019; CERN-PH-EP-2015-112.- Geneva : CERN, 2015-09-01 - 22 p. - Published in : JHEP 09 (2015) 006 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF;

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