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1.
Model-independent confirmation of the Z(4430) state / LHCb collaboration
The decay B0ψ(2S)K+π is analyzed using 3 fb1 of pp collision data collected with the LHCb detector. A model-independent description of the ψ(2S)π mass spectrum is obtained, using as input the Kπ 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
2.
Measurement of the χb(3P) mass and of the relative rate of χb1(1P) and χb2(1P) production / LHCb collaboration
The production of χb mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of s=7 and 8 TeV and corresponding to an integrated luminosity of 3.0 fb1. The χb mesons are identified through their decays to Υ(1S)γ and Υ(2S)γ using photons that converted to e+e pairs in the detector [...]
arXiv:1409.1408; LHCB-PAPER-2014-040; CERN-PH-EP-2014-206; LHCB-PAPER-2014-040-CERN_PH_EP_2014_206; LHCB-PAPER-2014-040; CERN-PH-EP-2014-206.- Geneva : CERN, 2014-10-14 - 22 p. - Published in : JHEP 10 (2014) 088 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF;
3.
Measurements of CP violation in the three-body phase space of charmless B± decays / LHCb Collaboration
Additional abstract: The additional document presents figures of the projections into the two-body invariant masses of the spectra of B±K±π+π,B±K±K+K,B±π±K+K and B±π±π+π decays. The figures show additional information related to the CP asymmetry in phase space, for section VII of the article Physical Review D 90, 112004 (2014)..
arXiv:1408.5373; CERN-PH-EP-2014-203; LHCB-PAPER-2014-044; LHCB-PAPER-2014-044; arXiv:1408.5373.- Geneva : CERN, 2014-12-11 - 17 p. - Published in : Phys. Rev. D 90 (2014) 112004 APS Open Access article: PDF; Additional document: PDF; Additional info: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): LHCb-PAPER-2014-044_supplementary - ZIP; LHCb-PAPER-2014-044_AddInfo_figs_v3 - ZIP; External link: Preprint
4.
Measurement of the forward W boson cross-section in pp collisions at s = 7 TeV / LHCb collaboration
A measurement of the inclusive Wμν production cross-section using data from pp collisions at a centre-of-mass energy of s=7TeV is presented. The analysis is based on an integrated luminosity of about 1.0fb1 recorded with the LHCb detector. [...]
arXiv:1408.4354; LHCB-PAPER-2014-033; CERN-PH-EP-2014-175; LHCB-PAPER-2014-033; CERN-PH-EP-2014-175.- Geneva : CERN, 2014-12-10 - 29 p. - Published in : JHEP 12 (2014) 079 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint
5.
Measurement of the CKM angle γ using B±DK± with DK0Sπ+π,K0SK+K decays / LHCb Collaboration
A binned Dalitz plot analysis of B±DK± decays, with DK0Sπ+π and DK0SK+K, is performed to measure the CP-violating observables x± and y±, which are sensitive to the Cabibbo-Kobayashi-Maskawa angle γ. The analysis exploits a sample of proton-proton collision data corresponding to 3.0 fb1 collected by the LHCb experiment. [...]
arXiv:1408.2748; LHCB-PAPER-2014-041; CERN-PH-EP-2014-202; LHCB-PAPER-2014-041; CERN-PH-EP-2014-202.- Geneva : CERN, 2014-10-16 - 32 p. - Published in : JHEP 10 (2014) 097 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint
6.
Measurement of the track reconstruction efficiency at LHCb / LHCb collaboration
The determination of track reconstruction efficiencies at LHCb using J/ψμ+μ decays is presented. Efficiencies above 95% are found for the data taking periods in 2010, 2011, and 2012. [...]
arXiv:1408.1251; CERN-LHCB-DP-2013-002; LHCB-DP-2013-002.- 2015-02-12 - 24 p. - Published in : JINST 10 (2015) P02007 Fulltext: 10.1088_1748-0221_10_02_P02007 - PDF; arXiv:1408.1251 - PDF; IOP Open Access article: PDF; External link: Preprint
7.
First observations of the rare decays B+K+π+πμ+μ and B+ϕK+μ+μ / LHCb collaboration
First observations of the rare decays B+K+π+πμ+μ and B+ϕK+μ+μ are presented using data corresponding to an integrated luminosity of 3.0fb1, collected by the LHCb experiment at centre-of-mass energies of 7 and 8TeV. The branching fractions of the decays are B(B+K+π+πμ+μ)=(4.36+0.290.27(stat)±0.21(syst)±0.18(norm))×107,B(B+ϕK+μ+μ)=(0.82+0.190.17(stat)+0.100.04(syst)±0.27(norm))×107, where the uncertainties are statistical, systematic, and due to the uncertainty on the branching fractions of the normalisation modes. [...]
arXiv:1408.1137; LHCB-PAPER-2014-030; CERN-PH-EP-2014-193; LHCB-PAPER-2014-030; CERN-PH-EP-2014-193.- Geneva : CERN, 2014-10-09 - 18 p. - Published in : JHEP 10 (2014) 064 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint
8.
Measurement of CP asymmetries in the decays B0K0μ+μ and B+K+μ+μ / LHCb collaboration
The direct CP asymmetries of the decays B0K0μ+μ and B+K+μ+μ are measured using pp collision data corresponding to an integrated luminosity of 3.0fb1 collected with the LHCb detector. The respective control modes B0J/ψK0 and B+J/ψK+ are used to account for detection and production asymmetries. [...]
arXiv:1408.0978; CERN-PH-EP-2014-191; LHCB-PAPER-2014-032; CERN-PH-EP-2014-191; LHCB-PAPER-2014-032.- Geneva : CERN, 2014-09-30 - 19 p. - Published in : JHEP 09 (2014) 177 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint
9.
First observation of a baryonic B+c decay / LHCb collaboration
A baryonic decay of the B+c meson, B+cJ/ψp¯pπ+, is observed for the first time, with a significance of 7.3 standard deviations, in pp collision data collected with the LHCb detector and corresponding to an integrated luminosity of 3.0 fb1 taken at center-of-mass energies of 7 and 8 TeV. With the B+cJ/ψπ+ decay as normalization channel, the ratio of branching fractions is measured to be \begin{equation*} \frac{\mathcal{B}(B_c^+\to J/\psi p\overline{p}\pi^+)}{\mathcal{B}(B_c^+\to J/\psi \pi^+)} = 0.143^{\,+\,0.039}_{\,-\,0.034}\,(\mathrm{stat})\pm0.013\,(\mathrm{syst}). [...]
arXiv:1408.0971; CERN-PH-EP-2014-187; LHCB-PAPER-2014-039; CERN-PH-EP-2014-187; LHCB-PAPER-2014-039.- Geneva : CERN, 2014-10-10 - 9 p. - Published in : Phys. Rev. Lett. 113 (2014) 152003 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Preprint
10.
Measurement of the ˉB0B0 and ˉB0sB0s production asymmetries in pp collisions at s=7 TeV / LHCb collaboration
The ˉB0B0 and ˉB0sB0s production asymmetries, AP(B0) and AP(B0s), are measured by means of a time-dependent analysis of B0J/ψK0, B0Dπ+ and B0sDsπ+ decays, using a data sample corresponding to an integrated luminosity of 1.0 fb1, collected by LHCb in pp collisions at a centre-of-mass energy of 7 TeV. The measurements are performed as a function of transverse momentum and pseudorapidity of the B0 and B0s mesons within the LHCb acceptance. [...]
arXiv:1408.0275; CERN-PH-EP-2014-181; LHCB-PAPER-2014-042; CERN-PH-EP-2014-181; LHCB-PAPER-2014-042.- Geneva : CERN, 2014-12-12 - 11 p. - Published in : Phys. Lett. B 739 (2014) 218 Article from SCOAP3: PDF; Elsevier Open Access article: PDF; Fulltext: S037026931400728X - XML; arXiv:1408.0275 - PDF; Related data file(s): ZIP; External link: Preprint

CERN Document Server : 54 notices trouvées   1 - 10suivantfin  aller vers la notice:
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