CERN Accelerating science

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1.
Search for decays of neutral beauty mesons into four muons / LHCb Collaboration
A search for the non-resonant decays B0sμ+μμ+μ and B0μ+μμ+μ is presented. The measurement is performed using the full Run 1 data set collected in proton-proton collisions by the LHCb experiment at the LHC. [...]
arXiv:1611.07704; LHCB-PAPER-2016-043; CERN-EP-2016-276.- Geneva : CERN, 2017-03-01 - 19 p. - Published in : JHEP 03 (2017) 001 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; Supplementary information: ZIP; External link: Figures, tables and other information
2.
Search for Higgs-like bosons decaying into long-lived exotic particles / LHCb collaboration
A search is presented for massive long-lived particles, in the 20-60 GeV mass range with lifetimes between 5 and 100 ps. The dataset used corresponds to 0.62 1\fb of proton-proton collision data collected by the LHCb detector at sqrt(s)=7 TeV. [...]
arXiv:1609.03124; LHCB-PAPER-2016-014; CERN-EP-2016-188; LHCB-PAPER-2016-014; CERN-EP-2016-188.- Geneva : CERN, 2016-12-02 - 29 p. - Published in : Eur. Phys. J. C 76 (2016) 664 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Figures, tables and other information
3.
Measurement of CP violation in B0D+D decays / LHCb collaboration
The CP violation observables S and C in the decay channel B0D+D are determined from a sample of proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, collected by the LHCb experiment and corresponding to an integrated luminosity of 3 fb1. The observable S describes CP violation in the interference between mixing and the decay amplitude, and C parametrizes direct CP violation in the decay. [...]
arXiv:1608.06620; LHCB-PAPER-2016-037; CERN-EP-2016-203; LHCB-PAPER-2016-037; CERN-EP-2016-203.- Geneva : CERN, 2016-12-23 - 10 p. - Published in : Phys. Rev. Lett. 117 (2016) 261801 APS Open Access article: PDF; Fulltext: arXiv:1608.06620 - PDF; 10.1103_PhysRevLett.117.261801 - PDF; Related data file(s): ZIP; External link: Figures, tables and other information
4.
Measurement of the CP-violating phase and decay-width difference in B0sψ(2S)ϕ decays / LHCb collaboration
A time-dependent angular analysis of B0sψ(2S)ϕ decays is performed using data recorded by the LHCb experiment. The data set corresponds to an integrated luminosity of 3.0\invfb collected during Run 1 of the LHC. [...]
arXiv:1608.04855; CERN-EP-2016-192; LHCB-PAPER-2016-027; LHCB-PAPER-2016-027.- 2016-11-10 - 10 p. - Published in : Phys. Lett. B 762 (2016) 253-262 Article from SCOAP3: PDF; Fulltext: PDF; External link: Figures, tables and other information
5.
Measurement of forward Weν production in pp collisions at s=8 TeV / LHCb collaboration
A measurement of the cross-section for Weν production in pp collisions is presented using data corresponding to an integrated luminosity of 2fb1 collected by the LHCb experiment at a centre-of-mass energy of s=8TeV. The electrons are required to have more than 20GeV of transverse momentum and to lie between 2.00 and 4.25 in pseudorapidity. [...]
arXiv:1608.01484; LHCB-PAPER-2016-024; CERN-EP-2016-179; LHCB-PAPER-2016-024; CERN-EP-2016-179.- Geneva : CERN, 2016-10-07 - 29 p. - Published in : JHEP 10 (2016) 030 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; Springer Open Access article: PDF; External link: Figures, tables and other information
6.
Search for the suppressed decays B+K+K+π and B+π+π+K / LHCb Collaboration
A search is made for the highly-suppressed B meson decays B+K+K+π and B+π+π+K using a data sample corresponding to an integrated luminosity of 3.0 fb1 collected by the LHCb experiment in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV. No evidence is found for the decays, and upper limits at 90\% confidence level are determined to be B(B+K+K+π)<1.1×108 and B(B+π+π+K)<4.6×108..
arXiv:1608.01478; LHCB-PAPER-2016-023; CERN-EP-2016-177.- Geneva : CERN, 2017-02-10 - 10 p. - Published in : Phys. Lett. B 765 (2017) 307-316 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
7.
Amplitude analysis of BD+ππ decays / LHCb Collaboration
The Dalitz plot analysis technique is used to study the resonant substructures of BD+ππ decays in a data sample corresponding to 3.0 fb1 of pp collision data recorded by the LHCb experiment during 2011 and 2012. A model-independent analysis of the angular moments demonstrates the presence of resonances with spins 1, 2 and 3 at high D+π mass. [...]
arXiv:1608.01289; CERN-EP-2016-184; LHCB-PAPER-2016-026; LHCB-PAPER-2016-026; CERN-EP-2016-184.- Geneva : CERN, 2016-10-05 - 23 p. - Published in : Phys. Rev. D 94 (2016) 072001 APS Open Access article: PDF; Fulltext: 10.1103_PhysRevD.94.072001 - PDF; arXiv:1608.01289 - PDF; Related data file(s): ZIP; External link: Figures, tables and other information
8.
Measurement of the ratio of branching fractions B(B+cJ/ψK+)/B(B+cJ/ψπ+) / LHCb collaboration
The ratio of branching fractions RK/πB(B+cJ/ψK+)/B(B+cJ/ψπ+) is measured with pp collision data collected by the LHCb experiment at centre-of-mass energies of 7 TeV and 8 TeV, corresponding to an integrated luminosity of 3fb1. It is found to be RK/π=0.079±0.007±0.003, where the first uncertainty is statistical and the second is systematic. [...]
arXiv:1607.06823; LHCB-PAPER-2016-020; CERN-EP-2016-173; LHCB-PAPER-2016-020; CERN-EP-2016-173.- Geneva : CERN, 2016-09-27 - 16 p. - Published in : JHEP 09 (2016) 153 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Figures, tables and other information
9.
Observation of ηc(2S)pˉp and search for X(3872)pˉp decays / LHCb collaboration
The first observation of the decay ηc(2S)pˉp is reported using proton-proton collision data corresponding to an integrated luminosity of 3.0fb1 recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The ηc(2S) resonance is produced in the decay B+[cˉc]K+ [...]
arXiv:1607.06446; CERN-EP-2016-175; LHCB-PAPER-2016-016.- 2017-06-10 - 9 p. - Published in : Phys. Lett. B 769 (2017) 305-313 Article from SCOAP3: PDF; Fulltext: PDF; External link: Figures, tables and other information
10.
Measurement of the B0sJ/ψη lifetime / LHCb collaboration
Using a data set corresponding to an integrated luminosity of 3fb1, collected by the LHCb experiment in pp collisions at centre-of-mass energies of 7 and 8 TeV, the effective lifetime in the B0sJ/ψη decay mode, τeff, is measured to be τeff=1.479±0.034 (stat)±0.011 (syst) ps. Assuming CP conservation, τeff corresponds to the lifetime of the light B0s mass eigenstate. [...]
arXiv:1607.06314; CERN-EP-2016-166; LHCB-PAPER-2016-017.- Geneva : CERN, 2016-11-10 - 9 p. - Published in : Phys. Lett. B 762 (2016) 484-492 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Figures, tables and other information

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