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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.
The LHCb Data Acquisition during LHC Run 1 / Alessio, F (CERN) ; Brarda, L (CERN) ; Bonaccorsi, E (CERN) ; Campora Perez, D H (CERN) ; Chebbi, M (CERN) ; Frank, M (CERN) ; Gaspar, C (CERN) ; Granado Cardoso, L (CERN) ; Haen, C (CERN) ; v.Herwijnen, E (CERN) et al.
The LHCb Data Acquisition system reads data from over 300 read-out boards and distributes them to more than 1500 event-filter servers. It uses a simple push-protocol over Gigabit Ethernet. [...]
2014 - 7 p. - Published in : J. Phys.: Conf. Ser. 513 (2014) 012033
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013, pp.012033
3.
A GPU offloading mechanism for LHCb / Badalov, Alexey (Ramon Llull U., Barcelona) ; Campora Perez, Daniel Hugo (CERN) ; Zvyagin, Alexander (CERN) ; Neufeld, Niko (Ramon Llull U., Barcelona) ; Vilasis Cardona, Xavier (Ramon Llull U., Barcelona)
The current computational infrastructure at LHCb is designed for sequential execution. It is possible to make use of modern multi-core machines by using multi-threaded algorithms and running multiple instances in parallel, but there is no way to make efficient use of specialized massively parallel hardware, such as graphical processing units and Intel Xeon/Phi. [...]
2014 - 5 p. - Published in : J. Phys.: Conf. Ser. 513 (2014) 052004
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013, pp.052004
4.
LHCb Detector Performance / LHCb collaboration
The LHCb detector is a forward spectrometer at the Large Hadron Collider (LHC) at CERN. The experiment is designed for precision measurements of CP violation and rare decays of beauty and charm hadrons. [...]
arXiv:1412.6352; LHCB-DP-2014-002; CERN-PH-EP-2014-290; CERN-PH-EP-2014-290; LHCB-DP-2014-002.- Geneva : CERN, 2015-03-05 - 73 p. - Published in : Int. J. Mod. Phys. A 30 (2015) 1530022 Fulltext: PDF; World Scientific Open Access article: PDF; External link: Preprint
5.
Precision luminosity measurements at LHCb / LHCb collaboration
Measuring cross-sections at the LHC requires the luminosity to be determined accurately at each centre-of-mass energy s. In this paper results are reported from the luminosity calibrations carried out at the LHC interaction point 8 with the LHCb detector for s = 2.76, 7 and 8 TeV (proton-proton collisions) and for sNN = 5 TeV (proton-lead collisions). [...]
arXiv:1410.0149; LHCB-PAPER-2014-047; CERN-PH-EP-2014-221; LHCB-PAPER-2014-047; CERN-PH-EP-2014-221.- Geneva : CERN, 2014-12-05 - 99 p. - Published in : JINST 9 (2014) P12005 Fulltext: arXiv:1410.0149 - PDF; 10.1088_1748-0221_9_12_P12005 - PDF; IOP Open Access article: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Preprint
6.
Measurement of the ηc(1S) production cross-section in proton-proton collisions via the decay ηc(1S)pˉp / LHCb collaboration
The production of the ηc(1S) state in proton-proton collisions is probed via its decay to the pˉp final state with the LHCb detector, in the rapidity range 2.0<y<4.5 and in the meson transverse-momentum range pT>6.5 GeV/c. The cross-section for prompt production of ηc(1S) mesons relative to the prompt J/ψ cross-section is measured, for the first time, to be σηc(1S)/σJ/ψ=1.74±0.29±0.28±0.18B at a centre-of-mass energy s=7 TeV using data corresponding to an integrated luminosity of 0.7 fb1, and σηc(1S)/σJ/ψ=1.60±0.29±0.25±0.17B at s=8 TeV using 2.0 fb1. [...]
arXiv:1409.3612; LHCB-PAPER-2014-029; CERN-PH-EP-2014-218; LHCB-PAPER-2014-029; CERN-PH-EP-2014-218.- Geneva : CERN, 2015-07-04 - 20 p. - Published in : Eur. Phys. J. C 75 (2015) 311 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Fulltext from Publisher: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint
7.
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;
8.
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
9.
Determination of γ and 2βs from charmless two-body decays of beauty mesons / LHCb collaboration
Using the latest LHCb measurements of time-dependent CP violation in the B0sK+K decay, a U-spin relation between the decay amplitudes of B0sK+K and B0π+π decay processes allows constraints to be placed on the angle γ of the unitarity triangle and on the B0s mixing phase 2βs. Results from an extended approach, which uses additional inputs on B0π0π0 and B+π+π0 decays from other experiments and exploits isospin symmetry, are also presented. [...]
arXiv:1408.4368; CERN-PH-EP-2014-207; LHCB-PAPER-2014-045; CERN-PH-EP-2014-207; LHCB-PAPER-2014-045.- Geneva : CERN, 2015-02-04 - 11 p. - Published in : Phys. Lett. B 741 (2015) 1 Article from SCOAP3: PDF; Elsevier Open Access article : PDF; Fulltext: arXiv:1408.4368 - PDF; S0370269314008867 - XML; Related data file(s): ZIP;
10.
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

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14 Zvyagin, A A
6 Zvyagin, A V
74 Zvyagin, A.
60 Zvyagin, Alexander
1 Zvyagin, Andrei
2 Zvyagin, Andrei A
1 Zvyagin, Andrei V
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