CERN Accelerating science

CERN Document Server Sök i 26 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 1.32 sekunder. 
1.
Performance of the LHCb RICH detector at the LHC / Adinolfi, M. (Bristol U.) ; Aglieri Rinella, G. (CERN) ; Albrecht, E. (CERN) ; Bellunato, T. (INFN, Milan Bicocca) ; Benson, S. (Edinburgh U.) ; Blake, T. (CERN ; Imperial Coll., London) ; Blanks, C. (Imperial Coll., London) ; Brisbane, S. (Oxford U.) ; Brook, N.H. (Bristol U.) ; Calvi, M. (INFN, Milan Bicocca ; Milan U.) et al. /LHCb RICH group
The LHCb experiment has been taking data at the Large Hadron Collider (LHC) at CERN since the end of 2009. One of its key detector components is the Ring-Imaging Cherenkov (RICH) system. [...]
arXiv:1211.6759; LHCB-DP-2012-003.- Geneva : CERN, 2013 - 25 p. - Published in : Eur. Phys. J. C 73 (2013) 2431 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
2.
The operation of the LHCb RICH photon detection system in a charged particle test beam / Brisbane, Sean (U. Oxford (main))
The LHCb experiment at CERN employs two Ring Imaging Cherenkov (RICH) detectors to provide particle identification over the range 1 to 100 GeV/c. The RICH detectors use custom-built Hybrid Photon Detectors (HPDs) to detect the Cherenkov photons over the wavelength range 200-600 nm. [...]
LHCb-PROC-2007-029; CERN-LHCb-PROC-2007-029.- Geneva : CERN, 2007 - 5 p. Fulltext: PDF;
In : 6th International Workshop on Ring Imaging Cherenkov Counters, Trieste, Italy, 15 - 20 Oct 2007
3.
The operation of the LHCb RICH photon detection system in a charged particle test beam / Brisbane, Sean (University of Oxford, UK)
LHCb-TALK-2007-073.- Geneva : CERN, 2007 - 13. Fulltext: PDF;
In : 6th International Workshop on Ring Imaging Cherenkov Counters, Trieste, Italy, 15 - 20 Oct 2007
4.
Measurement of the Bs0B¯s0 oscillation frequency Δms in Bs0Ds(3)π decays / LHCb Collaboration
The Bs0-B¯s0 oscillation frequency Δms is measured with 36 pb1 of data collected in pp collisions at s = 7 TeV by the LHCb experiment at the Large Hadron Collider. A total of 1381 Bs0Dsπ+ and Bs0Dsπ+ππ+ signal decays are reconstructed, with average decay time resolutions of 44~fs and 36~fs, respectively. [...]
arXiv:1112.4311; LHCB-PAPER-2011-010; CERN-PH-EP-2011-194; LHCB-PAPER-2011-010; CERN-PH-EP-2011-194.- Geneva : CERN, 2013-07-16 - 8 p. - Published in : Phys. Lett. B 709 (2012) 177-184 Elsevier Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
5.
First observation of the decay Bs0K0K¯0 / LHCb Collaboration
The first observation of the decay Bs0K0K¯0 is reported using 35 pb1 of data collected by LHCb in proton-proton collisions at a centre-of-mass energy of 7 TeV. A total of 49.8±7.5 signal events are observed, with a significance of 10.9 sigma. [...]
arXiv:1111.4183; CERN-PH-EP-2011-183; LHCB-PAPER-2011-012; CERN-PH-EP-2011-183; LHCB-PAPER-2011-012.- Geneva : CERN, 2013-07-16 - 9 p. - Published in : Phys. Lett. B 709 (2012) 50-58 Elsevier Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
6.
Measurement of the effective Bs0K+K lifetime / LHCb Collaboration
A measurement of the effective BsK+K lifetime is presented using approximately 37pb1 of data collected by LHCb during 2010. This quantity can be used to put constraints on contributions from processes beyond the Standard Model in the Bs meson system and is determined by two complementary approaches as τBsK+K=1.440±0.096(stat)±0.008(syst)±0.003(model)ps..
arXiv:1111.0521; CERN-PH-EP-2011-167; LHCB-PAPER-2011-014; CERN-PH-EP-2011-167; LHCb-PAPER-2011-014.- Geneva : CERN, 2013-07-16 - 8 p. - Published in : Phys. Lett. B 707 (2012) 349-356 Elsevier Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
7.
Search for CP violation in D+KK+π+ decays / LHCb Collaboration
A model-independent search for direct CP violation in the Cabibbo suppressed decay D+KK+π+ in a sample of approximately 370,000 decays is carried out. The data were collected by the LHCb experiment in 2010 and correspond to an integrated luminosity of 35 pb1. [...]
arXiv:1110.3970; LHCB-PAPER-2011-017; CERN-PH-EP-2011-163; LHCB-PAPER-2011-017; CERN-PH-EP-2011-163.- Geneva : CERN, 2011 - 13 p. - Published in : Phys. Rev. D 84 (2011) 112008 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
8.
Measurement of b hadron production fractions in 7 TeV pp collisions / LHCb Collaboration
Measurements of b hadron production ratios in proton-proton collisions at a centre-of-mass energy of 7 TeV with an integrated luminosity of 3 pb1 are presented. We study the ratios of strange B meson to light B meson production fs/(fu+fd) and Λb0 baryon to light B meson production fΛb/(fu+fd) as a function of the charmed hadron-muon pair transverse momentum pT and the b hadron pseudorapidity η, for pT between 0 and 14 GeV and η between 2 and 5. [...]
arXiv:1111.2357; CERN-PH-EP-2011-172; LHCB-PAPER-2011-018; CERN-PH-EP-2011-172; LHCB-PAPER-2011-018.- Geneva : CERN, 2012 - 28 p. - Published in : Phys. Rev. D 85 (2012) 032008 APS Open Access article: PDF; Extra material: ZIP; Figures: ZIP; Fulltext: PDF; External link: Preprint
9.
First observation of the decay B¯s0D0K0 and a measurement of the ratio of branching fractions B(B¯s0D0K0)B(B¯0D0ρ0) / LHCb Collaboration
The first observation of the decay B¯s0D0K0 using pp data collected by the LHCb detector at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb1, is reported. A signal of 34.4±6.8 events is obtained and the absence of signal is rejected with a statistical significance of more than nine standard deviations. [...]
arXiv:1110.3676; LHCB-PAPER-2011-008; CERN-PH-EP-2011-150; LHCB-PAPER-2011-008; CERN-PH-EP-2011-150.- Geneva : CERN, 2013-07-16 - 8 p. - Published in : Phys. Lett. B 706 (2011) 32-39 Elsevier Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
10.
Absolute luminosity measurements with the LHCb detector at the LHC / LHCb Collaboration
Absolute luminosity measurements are of general interest for colliding-beam experiments at storage rings. These measurements are necessary to determine the absolute cross-sections of reaction processes and are valuable to quantify the performance of the accelerator. [...]
arXiv:1110.2866; LHCB-PAPER-2011-015; CERN-PH-EP-2011-157; LHCB-PAPER-2011-015; CERN-PH-EP-2011-157.- Geneva : CERN, 2012 - 47 p. - Published in : JINST 7 (2012) P01010 Fulltext: PDF; IOP Open Access article: PDF; Related data file(s): ZIP; External link: Preprint

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