CERN Accelerating science

LHCb Notes

Latest additions:
Physics opportunities with the fixed-target program of the LHCb experiment using an unpolarized gas target / Bursche, Albert (Universita e INFN, Cagliari (IT)) ; Dembinski, Hans Peter (Max-Planck-Gesellschaft (DE)) ; Di Nezza, Pasquale (INFN e Laboratori Nazionali di Frascati (IT)) ; Ferro-Luzzi, Massimiliano (CERN) ; Fleuret, Frederic (Centre National de la Recherche Scientifique (FR)) ; Graziani, Giacomo (Universita e INFN, Firenze (IT)) ; Manca, Giulia (Universita e INFN, Cagliari (IT)) ; Maurice, Emilie Amandine (Centre National de la Recherche Scientifique (FR)) ; Neri, Nicola (Università degli Studi e INFN Milano (IT)) ; Pappalardo, Luciano Libero (Universita e INFN, Ferrara (IT)) et al.
in preparation
LHCb-PUB-2018-015; CERN-LHCb-PUB-2018-015.- Geneva : CERN, 2018

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HL-LHC yellow report / Koppenburg, Patrick (Nikhef National institute for subatomic physics (NL))
in preparation
LHCb-PUB-2018-014; CERN-LHCb-PUB-2018-014.- Geneva : CERN, 2018

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Prospects for measurement of the weak mixing angle at LHCb / Barter, William James (University of Manchester (GB))
We project the potential sensitivity to the weak mixing angle in future measurements by LHCb Upgrade II at the High Luminosity LHC. The LHCb experiment covers forward rapidities at the LHC, and expects to record at least 300$\text{ fb}^{-1}$ of data. [...]
LHCb-PUB-2018-013; CERN-LHCb-PUB-2018-013.- Geneva : CERN, 2018 - 11. Fulltext: PDF;

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LHCb Upgrade Computing Model / Passaleva, Giovanni (Universita e INFN, Firenze (IT))
LHCb-PUB-2018-012; CERN-LHCb-PUB-2018-012.- Geneva : CERN, 2018

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LHCb Computing Resources: 2019/2020 requests and preview of Run 3 computing model / Bozzi, Concezio (Universita e INFN, Ferrara (IT))
This document presents the computing resources needed by LHCb in 2019 and 2020. A preview of the LHCb computing model for Run 3 and beyond is also given [...]
LHCb-PUB-2018-011; CERN-LHCb-PUB-2018-011.- Geneva : CERN, 2018 - 13. Fulltext: PDF;

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Using holistic event information in the trigger / Bourgeois, Dylan (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Fitzpatrick, Conor (EPFL - Ecole Polytechnique Federale Lausanne (CH)) ; Stahl, Sascha (CERN)
In order to achieve the data rates proposed for the future Run 3 upgrade of the LHCb detector, new processing models must be developed to deal with the increased throughput. For this reason we aim to investigate the feasibility of purely data-driven 'holistic' methods, with the constraint of introducing minimal computational overhead, hence using only raw detector information. [...]
arXiv:1808.00711; LHCb-PUB-2018-010; CERN-LHCb-PUB-2018-010.- Geneva : CERN, 2018 - 30 p. Fulltext: LHCb-PUB-2018-010 - PDF; 1808.00711 - PDF;

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Physics case for an LHCb Upgrade II / The LHCb Collaboration, LHCb Experiment
The LHCb Upgrade II will fully exploit the flavour-physics opportunities of the HL-LHC, and study additional physics topics that take advantage of the forward acceptance of the LHCb spectrometer. The LHCb Upgrade I will begin operation in 2020. [...]
LHCb-PUB-2018-009; CERN-LHCb-PUB-2018-009.- Geneva : CERN, 2018 - 178. Fulltext: PDF;

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Measurements of the Minimum Bending Radius of Small Diameter Scintillating Plastic Fibres / Gruber, Lukas (CERN) ; Joram, Christian (CERN) ; Vaananen, Mika Petteri (University of Helsinki (FI)) ; Gavardi, Laura (Technische Universitaet Dortmund (DE))
The minimum bending radius of plastic fibres is an important parameter as it determines the geometrical flexibility of the fibres during long-term storage or installation and usage inside detectors. The following document describes measurements of the minimum bending radius of round scintillating plastic fibres with small diameter performed in the context of the LHCb SciFi Tracker project. [...]
LHCb-PUB-2018-008; CERN-LHCb-PUB-2018-008.- Geneva : CERN, 2018 - 8. Fulltext: PDF;

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An X-Ray facility to perform irradiation tests and TID studies on electronics and detectors / Brundu, Davide (Universita e INFN, Cagliari (IT)) ; Cardini, Alessandro (Universita e INFN, Cagliari (IT)) ; Cadeddu, Sandro (Universita e INFN, Cagliari (IT)) ; Wyllie, Ken (CERN) ; Ciambrone, Paolo (INFN e Laboratori Nazionali di Frascati (IT))
The X-Ray irradiation system of the LHCb group, installed in Cagliari, is presented; with a particular focus on the setup configuration and dose rate calibration. The system can be used to perform Total Ionizing Dose (TID) studies for detectors, readout and front-end electronics. [...]
LHCb-PUB-2018-007; CERN-LHCb-PUB-2018-007.- Geneva : CERN, 2018 - 19. Fulltext: PDF;

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Triggering $B_s^0 \to \gamma\gamma$ at LHCb / Benson, Sean (Nikhef National institute for subatomic physics (NL)) ; Puig Navarro, Albert (Universitaet Zuerich (CH))
The trigger strategy used in the search for the $B_s^0 \to \gamma\gamma$ decay in Run 2 is described. A sample of data is also provided, corresponding to 80 pb$^{−1}$ of diphoton candidates collected in 2015..
LHCb-PUB-2018-006; CERN-LHCb-PUB-2018-006.- Geneva : CERN, 2018 - 14. Fulltext: B_gammagamma_dists - ROOT; LHCb-PUB-2018-006 - PDF;

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