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LHCb Public Notes

Latest additions:
Signal coupling to embedded pitch adapters in silicon sensors / Artuso, Marina (Syracuse University (US)) ; Betancourt, Christopher (Universitaet Zuerich (CH)) ; Bezshyiko, Iaroslava (Universitaet Zuerich (CH)) ; Blusk, Steven R. (Syracuse University (US)) ; Brundler Denzer, Ruth (Universitaet Zuerich (CH)) ; Bugiel, Szymon (AGH University of Science and Technology (PL)) ; Dasgupta, Roma (AGH University of Science and Technology (PL)) ; Dendek, Adam Mateusz (AGH University of Science and Technology (PL)) ; Dey, Biplab (Central China Normal University CCNU (CN)) ; Ely, Scott Edward (Syracuse University (US)) et al.
We have examined the effects of embedded pitch adapters on signal formation in n-substrate silicon microstrip sensors with data from beam tests and simulation. According to simulation, the presence of the pitch adapter metal layer changes the electric field inside the sensor, resulting in slowed signal formation on the nearby strips and a pick-up effect on the pitch adapter. [...]
LHCb-PUB-2017-017; CERN-LHCb-PUB-2017-017.- Geneva : CERN, 2017

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A study on Scintillating Fiber tracker optimization for LHCb upgrade / Piucci, Alessio (Ruprecht-Karls-Universitaet Heidelberg (DE)) ; Mogini, Andrea (Centre National de la Recherche Scientifique (FR)) ; Esen, Sevda (Ruprecht-Karls-Universitaet Heidelberg (DE)) ; Nikodem, Thomas (Ruprecht-Karls-Universitaet Heidelberg (DE))
in preparation
LHCb-PUB-2017-016; CERN-LHCb-PUB-2017-016.- Geneva : CERN, 2017

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First experiences with a parallel architecture testbed in the LHCb trigger system / Gallorini, Stefano (Universita e INFN, Padova (IT)) ; Gianelle, Alessio (Universita e INFN, Padova (IT)) ; Corvo, Marco (Universita di Ferrara & INFN (IT)) ; Lucchesi, Donatella (Universita e INFN, Padova (IT)) ; Amerio, Silvia (Universita e INFN, Padova (IT))
in preparation
LHCb-PUB-2017-015; CERN-LHCb-PUB-2017-015.- Geneva : CERN, 2017

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in preparation / Papanestis, Antonis (STFC - Rutherford Appleton Lab. (GB))
in preparation
LHCb-PUB-2017-014; CERN-LHCb-PUB-2017-014.- Geneva : CERN, 2017

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Radiation environment of the LHCb Calorimeters in 2010-2013 (under review) / Corti, Gloria (CERN) ; Karacson, Matthias (Ruprecht-Karls-Universitaet Heidelberg (DE))
A set of passive and active radiation detectors has been installed around and in between the LHCb calorimeter subsystems to measure different aspects of the radiation environment. Cross calibrations between various types of measurements are performed and correlated with the evolving run conditions. [...]
LHCb-PUB-2017-013; CERN-LHCb-PUB-2017-013.- Geneva : CERN, 2017

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Performance of the LHCb RICH detectors during the LHC Run II / Papanestis, Antonis (Rutherford) ; D'Ambrosio, Carmelo (CERN)
The LHCb RICH system provides hadron identification over a wide momentum range $(2–100 ~\text{GeV}/c)$. [...]
LHCB-PUB-2017-012 ; arXiv:1703.08152 ; CERN-LHCb-PUB-2017-012.
- 2017. - 10.
Full text - Preprint - Preprint - Full text

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Fast neural-net based fake track rejection / De Cian, Michel (Ruprecht-Karls-Universitaet Heidelberg (DE)) ; Farry, Stephen (University of Liverpool (GB)) ; Seyfert, Paul (Universita & INFN, Milano-Bicocca (IT)) ; Stahl, Sascha (CERN)
A neural-network based algorithm to identify fake tracks in the LHCb pattern recognition is presented. This algorithm, called ghost probability, is fast enough to fit into the CPU time budget of the software trigger farm. [...]
LHCb-PUB-2017-011; CERN-LHCb-PUB-2017-011.- Geneva : CERN, 2017

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LHCb Computing Resource usage in 2016 (II) / Bozzi, Concezio (Universita di Ferrara & INFN (IT))
This documents reports the usage of computing resources by the LHCb collaboration during the period January 1st – December 31st 2016..
LHCb-PUB-2017-010; CERN-LHCb-PUB-2017-010.- Geneva : CERN, 2017 - 33. Fulltext: PDF;

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LHCb Computing Resources: 2018 requests and preview of 2019 requests / Bozzi, Concezio (Universita di Ferrara & INFN (IT))
This document presents a reassessment of computing resources needed by LHCb in 2018 and a preview of computing requests for 2019, as resulting from the current experience of Run2 data taking and recent changes in the LHCb computing model parameters..
LHCb-PUB-2017-009; CERN-LHCb-PUB-2017-009.- Geneva : CERN, 2017 - 12. Fulltext: PDF;

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A setup to perform X-ray irradiation tests on scintillating fibres for the SciFi project / Gavardi, Laura (Technische Universitaet Dortmund (DE)) ; Rodrigues Cavalcante, Ana Barbara (CBPF - Brazilian Center for Physics Research (BR)) ; Joram, Christian (CERN) ; Kristic, Robert (CERN)
An X-ray setup has been installed at CERN. The setup will serve for quality assurance purposes related to the acceptance of $11'000~ \text{km}$ of scintillating plastic fibres for the SciFi detector of LHCb. [...]
LHCb-PUB-2017-008; CERN-LHCb-PUB-2017-008.- Geneva : CERN, 2017 Fulltext: PDF;

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