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CERN Document Server Znaleziono 397 rekordów  1 - 10następnykoniec  skocz do rekordu: Szukanie trwało 0.67 sekund. 
1.
Calibration and performance of the LHCb calorimeters in Run 1 and 2 at the LHC / Abellán Beteta, Carlos (ICC, Barcelona U.) ; Alfonso Albero, A. (ICC, Barcelona U.) ; Amhis, Y. (IJCLab, Orsay) ; Barsuk, S. (IJCLab, Orsay) ; Beigbeder-Beau, C. (IJCLab, Orsay) ; Belyaev, I. (Kurchatov Inst., Moscow) ; Bonnefoy, R. (Clermont-Ferrand U.) ; Breton, D. (IJCLab, Orsay) ; Callot, O. (IJCLab, Orsay) ; Calvo Gomez, M. (ICC, Barcelona U.) et al.
The calibration and performance of the LHCb Calorimeter system in Run 1 and 2 at the LHC are described. [...]
arXiv:2008.11556 ; LHCb-DP-2020-001. - 51 p.
Fulltext
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2.
Model-independent confirmation of the $Z(4430)^-$ state / LHCb collaboration
The decay $B^0\to \psi(2S) K^+\pi^-$ is analyzed using $\rm 3~fb^{-1}$ of $pp$ collision data collected with the LHCb detector. A model-independent description of the $\psi(2S) \pi$ mass spectrum is obtained, using as input the $K\pi$ mass spectrum and angular distribution derived directly from data, without requiring a theoretical description of resonance shapes or their interference. [...]
arXiv:1510.01951; CERN-PH-EP-2015-244; LHCB-PAPER-2015-038; CERN-PH-EP-2015-244; LHCB-PAPER-2015-038.- 2015-12-29 - 15 p. - Published in : Phys. Rev. D 92 (2015) 112009 APS Open Access article: PDF; Fulltext: 10.1103_PhysRevD.92.112009 - PDF; arXiv:1510.01951 - PDF; External link: Figures, tables and other information
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3.
Studies of the resonance structure in $D^0\to K^0_S K^{\pm}\pi^{\mp}$ decays / LHCb Collaboration
Amplitude models are applied to studies of resonance structure in $D^0\to K^0_S K^- \pi^+$ and $D^0\to K^0_S K^+ \pi^-$ decays using $pp$ collision data corresponding to an integrated luminosity of $3.0\,\mathrm{fb}^{-1}$ collected by the LHCb experiment. Relative magnitude and phase information is determined, and coherence factors and related observables are computed for both the whole phase space and a restricted region of $100\,\mathrm{MeV/}c^2$ around the $K^{*}(892)^{\pm}$ resonance. [...]
arXiv:1509.06628; CERN-PH-EP-2015-238; LHCB-PAPER-2015-026; LHCB-PAPER-2015-026; CERN-PH-EP-2015-238.- Geneva : CERN, 2016-03-31 - 35 p. - Published in : Phys. Rev. D 93 (2016) 052018 APS Open Access article: PDF; Fulltext: arXiv:1509.06628 - PDF; 10.1103_PhysRevD.93.052018 - PDF; Related data file(s): ZIP; Related supplementary data file(s) 1: ZIP; Related supplementary data file(s) 2: ZIP; External link: Preprint
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4.
Measurement of the $B_s^0 \to \phi \phi$ branching fraction and search for the decay $B^0 \to \phi \phi$ / LHCb collaboration
Using a dataset corresponding to an integrated luminosity of 3.0 fb$^{-1}$ collected in $pp$ collisions at centre-of-mass energies of 7 and 8 TeV, the $B_s^0 \to \phi \phi$ branching fraction is measured to be \[ \mathcal{B}(B_s^0 \to \phi \phi) = ( 1.84 \pm 0.05 (\text{stat}) \pm 0.07 (\text{syst}) \pm 0.11 (f_s/f_d) \pm 0.12 (\text{norm}) ) \times 10^{-5}, \] where $f_s/f_d$ represents the ratio of the $B_s^0$ to $B^0$ production cross-sections, and the $B^0 \to \phi K^*(892)^0$ decay mode is used for normalization. This is the most precise measurement of this branching fraction to date, representing a factor five reduction in the statistical uncertainty compared with the previous best measurement. [...]
arXiv:1508.00788; CERN-PH-EP-2015; LHCB-PAPER-2015-028; LHCB-PAPER-2015-028; CERN-PH-EP-2015-198.- Geneva : CERN, 2015-10-08 - 20 p. - Published in : JHEP 10 (2015) 053 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF;
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5.
$B$ flavour tagging using charm decays at the LHCb experiment / LHCb collaboration
An algorithm is described for tagging the flavour content at production of neutral $B$ mesons in the LHCb experiment. The algorithm exploits the correlation of the flavour of a $B$ meson with the charge of a reconstructed secondary charm hadron from the decay of the other $b$ hadron produced in the proton-proton collision. [...]
arXiv:1507.07892; CERN-PH-EP-2015-193; LHCB-PAPER-2015-027; CERN-PH-EP-2015-193; LHCB-PAPER-2015-027.- Geneva : CERN, 2015-10-05 - 19 p. - Published in : JINST 10 (2015) P10005 Fulltext: 10.1088_1748-0221_10_10_P10005 - PDF; arXiv:1507.07892 - PDF; IOP Open Access article: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Figures, tables and other information
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6.
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
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7.
Search for long-lived heavy charged particles using a ring imaging Cherenkov technique at LHCb / LHCb collaboration
A search is performed for heavy long-lived charged particles using 3.0 fb$^{-1}$ of pp collisions collected at $\sqrt{s}$= 7 and 8 TeV with the LHCb detector. The search is mainly based on the response of the ring imaging Cherenkovdetectors to distinguish the heavy, slow-moving particles from muons. [...]
arXiv:1506.09173; CERN-PH-EP-2105-139; LHCB-PAPER-2015-002; CERN-PH-EP-2105-139; LHCB-PAPER-2015-002.- Geneva : CERN, 2015-12-15 - 24 p. - Published in : Eur. Phys. J. C 75 (2015) 595 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF;
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8.
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;
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9.
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
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10.
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: 1506.08614 - PDF; arXiv:1506.08614 - PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External links: livescience article; Scientific American article
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CERN Document Server : Znaleziono 397 rekordów   1 - 10następnykoniec  skocz do rekordu:
Zobacz też: podobne nazwiska autorów
270 Ruiz, H
3 Ruiz, H S
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1 Ruiz, Hector A
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118 Ruiz, Hugo
1 Ruiz, Héctor A.
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