CERN Accelerating science

LHCb Conference Proceedings

Letzte Einträge:
2015-03-26
17:13
Evaporative CO$_2$ microchannel cooling for the LHCb VELO pixel upgrade / de Aguiar Francisco, Oscar A (Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil) ; Buytaert, Jan (CERN, Geneva, Switzerland) ; Collins, Paula (CERN, Geneva, Switzerland) ; Dumps, Raphael (CERN, Geneva, Switzerland) ; John, Malcolm (Department of Physics, University of Oxford, Oxford, United Kingdom) ; Mapelli, Alessandro (CERN, Geneva, Switzerland) ; Romagnoli, Giulia (CERN, Geneva, Switzerland)
The LHCb Vertex Detector (VELO) will be upgraded in 2018 to a lightweight pixel detector capable of 40 MHz readout and operation in very close proximity to the LHC beams. The thermal management of the system will be provided by evaporative CO$_2$ circulating in microchannels embedded within thin silicon plates. [...]
LHCb-PROC-2015-005; CERN-LHCb-PROC-2015-005.- Geneva : CERN, 2015 - 9 p. Fulltext: PDF;
In : 7th International Workshop on Semiconductor Pixel Detectors for Particles and Imaging, Niagara Falls, Ontario, Canada, 1 - 5 Sep 2014

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2015-02-23
15:56
Measuring Semileptonic Asymmetries in LHCb / Klaver, Suzanne (School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom)
The $CP$-violating flavour-specific asymmetry in neutral $b$ mesons provides a method for testing the Standard Model. The measurements from the D0 experiment yield values of this asymmetry that disagree with the Standard Model at a level of 3.6 $\sigma$. [...]
LHCb-PROC-2015-004; CERN-LHCb-PROC-2015-004.- Geneva : CERN, 2015 - 7 p. Fulltext: PDF;
In : Flavorful Ways to New Physics, Freudenstadt - Lauterbad, Germany, 28 - 31 Oct 2014

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2015-01-26
11:12
Vertexing and Tracking Software at LHCb / Bowen, Espen Eie (Physik-Institut, Universität Zürich, Zürich, Switzerland)
The LHCb experiment is a dedicated heavy flavour experiment at the LHC. Its primary goal is to search for indirect evidence of New Physics in CP violation and rare decays of beauty and charm hadrons. [...]
LHCb-PROC-2015-003; CERN-LHCb-PROC-2015-003.- Geneva : CERN, 2015 - 9 p. Fulltext: PDF;
In : VERTEX 2014 - 23rd International Workshop on Vertex Detectors, Doksy, Czech Republic, 15 - 19 Sep 2014

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2015-01-16
17:06
The VELO Upgrade / Jans, Eddy (NIKHEF, Amsterdam)
A significant upgrade of the LHCb detector is scheduled to be installed in 2018-2019. Afterwards all sub-detectors will be read out at the LHC bunch crossing frequency of 40 MHz and the trigger will be fully implemented in software. [...]
LHCb-PROC-2015-002; CERN-LHCb-PROC-2015-002.- Geneva : CERN, 2015 - 9 p. Fulltext: PDF;
In : 7th International Workshop on Semiconductor Pixel Detectors for Particles and Imaging, Niagara Falls, Ontario, Canada, 1 - 5 Sep 2014

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2015-01-16
15:13
TORCH — an Innovative High-Precision Time-of-Flight PID Detector for the LHCb Upgrade / Fohl, Klaus (CERN)
TORCH is a Cherenkov time-of-flight detector being developed as a particle identification system for the upgraded LHCb experiment. The DIRC-type detector is located at 10m distance from the interaction point with an area of 30m$^2$ and is formed from 10mm thick synthetic amorphous fused silica plates. [...]
LHCb-PROC-2015-001; CERN-LHCb-PROC-2015-001.- Geneva : CERN, 2015 - 5 p. Fulltext: PDF;
In : Conference Information and Promotion Committee (CIP) for the IEEE – Nuclear Science Symposium and Medical Imaging Conference, and Room-Temperature Semiconductor X-Ray and Gamma-Ray Detectors workshop (IEEE NSS-MIC), Seattle, WA, USA, 8 - 15 Nov 2014

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2014-11-28
17:26
Highlights from LHC experiments and future perspectives / Campana, Pierluigi (Frascati)
The experiments at LHC are collecting a large amount of data in a kinematic of the $(x, Q^2)$ variables never accessed before. Boosted by LHC analyses, Quantum Chromodynamics (QCD) is experiencing an impressive progress in the last few years, and even brighter perspectives can be foreseen for the future data taking. [...]
LHCb-PROC-2014-074; CERN-LHCb-PROC-2014-074.- Geneva : CERN, 2014 - 11 p. Fulltext: PDF;
In : XIth Quark Confinement and the Hadron Spectrum , Saint-petersburg, Russia, 8 - 12 Sep 2014

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2014-11-28
09:04
Searches for CP violation in multibody D decays / Fu, J (INFN, Milan)
Multibody charm decays are a good place to search for $CP$ violation. The results of the LHCb collaboration in the decays of $D^+ \to \pi^- \pi^+ \pi^+$, $D^0 \to \pi^+ \pi^- \pi^+ \pi^-$ and $D^0 \to K^+ K^- \pi^+ \pi^-$ are presented..
LHCb-PROC-2014-073; CERN-LHCb-PROC-2014-073.- Geneva : CERN, 2014 - 7 p. Fulltext: PDF;
In : The 15th International Conference on B-Physics at Frontier Machines, Edinburgh, Scotland, Uk, 14 - 18 Jul 2014

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2014-11-27
14:50
Recent results on searches for heavy Majorana neutrinos / Harrison, Jonathan (Manchester U.)
The latest results in the searches for heavy Majorana neutrinos at LHCb, $BABAR$ and Belle are presented. World’s best limits are set on the branching fractions of $B^-\to h^+\mu^-\mu^-$ and $D^+_{(s)} \rightarrow \pi^-\mu^+\mu^+$ decays at LHCb , where $h^+$ denotes charged light and charm mesons, and constraints are placed on fourth generation couplings as a function of the neutrino mass [...]
LHCb-PROC-2014-072; CERN-LHCb-PROC-2014-072.- Geneva : CERN, 2014 - 4 p. Fulltext: PDF;
In : The 13th International Workshop on Tau Lepton Physics, Aachen, Germany, 14 - 19 Sep 2014

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2014-11-27
09:52
A generic firmware core to drive the Front-End GBT-SCAs for the LHCb ugprade / Alessio, F (CERN) ; Caplan, C (Rio de Janeiro, CBPF) ; Gaspar, C (CERN) ; Jacobsson, R (CERN) ; Wyllie, K (CERN)
The LHCb experiment has proposed an upgrade towards a full 40 MHz readout system in order to run between five and ten times its initial design luminosity. The entire Front-End electronics will be upgraded in order to cope with higher sub-detector occupancy, higher data rate and to work in a complete trigger-less fashion. [...]
LHCb-PROC-2014-071; CERN-LHCb-PROC-2014-071.- Geneva : CERN, 2014 - 10 p. Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics 2014, Aix En Provence, France, 22 - 26 Sep 2014

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2014-11-27
09:45
Clock and timing distribution in the LHCb upgraded detector and readout system / Alessio, F (CERN) ; Baron, S (CERN) ; Barros Marin, M (CERN) ; Cachemiche, JP (Marseille, CPPM) ; Hachon, F (Marseille, CPPM) ; Jacobsson, R (CERN) ; Wyllie, K (CERN)
The LHCb experiment is upgrading part of its detector and the entire readout system towards a full 40 MHz readout system in order to run between five and ten times its initial design luminosity and increase its trigger efficiency. In this paper, the new timing, trigger and control distribution system for such an upgrade is reviewed with particular attention given to the distribution of the clock and timing information across the entire readout system, up to the FE and the on-detector electronics. [...]
LHCb-PROC-2014-070; CERN-LHCb-PROC-2014-070.- Geneva : CERN, 2014 - 10 p. Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics 2014, Aix En Provence, France, 22 - 26 Sep 2014

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