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1.
The SMOG2 project / Di Nezza, Pasquale (INFN Frascati) ; Carassiti, Vittore (Universita e INFN, Ferrara (IT)) ; Ciullo, Giuseppe (Universita e INFN, Ferrara (IT)) ; Lenisa, Paolo (Universita e INFN, Ferrara (IT)) ; Pappalardo, Luciano Libero (Universita e INFN, Ferrara (IT)) ; Steffens, Erhard (University of Erlangen (Germany)) ; Bruce, Roderik (CERN) ; Vasilyev, Alexander (Petersburg Nuclear Physics Institute, Gatchina (Russia)) ; Boscolo Meneguolo, Caterina (Universita e INFN, Padova (IT)) ; Bregliozzi, Giuseppe (CERN) et al.
"A proposal for an upgraded version of the existing gas injection system for the LHCb experiment (SMOG) is presented. The core idea of the project, called SMOG2, is the use of a storage cell for the injected gas to be installed upstream of the VELO detector [...]
CERN-PBC-Notes-2018-007.- Geneva : CERN, 2018 Fulltext: PDF;
2.
Report from the LHC Fixed Target working group of the CERN Physics Beyond Colliders forum / Barschel, Colin (CERN) ; Bernhard, Johannes (CERN) ; Bersani, Andrea (INFN e Universita Genova (IT)) ; Boscolo Meneguolo, Caterina (Universita e INFN, Padova (IT)) ; Bruce, Roderik (CERN) ; Calviani, Marco (CERN) ; Carassiti, Vittore (Universita e INFN, Ferrara (IT)) ; Cerutti, Francesco (CERN) ; Chiggiato, Paolo (CERN) ; Ciullo, Giuseppe (Universita e INFN, Ferrara (IT)) et al.
Several fixed-target experiments at the LHC are being proposed and actively studied. Splitting of beam halo from the core by means of a bent crystal combined with a second bent crystal after the target has been suggested in order to study magnetic and electric dipole moments of short-lived particles. [...]
CERN-PBC-REPORT-2019-001.- Geneva : CERN, 2019 Fulltext: PDF;
3.
LHCb - SMOG2 reconstruction performance: fixed-target physics at the LHCb experiment from Run3¶
Reference: Poster-2020-1025
Created: 2020. -1 p
Creator(s): Manuzzi, Daniele

The LHCb experiment started in 2015 a pioneering fixed-target pro- gramstudyingthecollisionsbetweenLHCprotonsandgastargetsinjected into the LHC beam pipe through a system called SMOG. The gas was free to spread between a wide area covering the pp luminous region, limiting the injectable gas species to noble ones. Fixed-target data were mostly acquired during special runs of limited duration to avoid interfering with the pp physics program. The upgrade of the SMOG program, SMOG2, will mainly consist in the installation of a confinement cell for the gas cov- ering a 20 cm long region upstream the nominal pp interaction point. This will allow to increase the gas density by up to two orders of magnitude and to potentially extend the gas species to be injected. Moreover, the large separation between the pp and SMOG2 regions opens the scenario of a simultaneous data-taking, provided that the reconstruction perfor- mance of both fixed-target and pp events is not significantly affected and the tight time constraints for the online reconstruction and selection are met. This poster contains some preliminary results for the efficiencies of the Run3 tracking sub-detectors: the performance are demonstrated to be comparable between pp and SMOG2 collisions and they do not degrade for pp when adding Helium or Argon gas targets

Related links:
LHCb poster
© CERN Geneva

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4.
LHCb Heavy-ion results in collider and fixed-target mode / Pappalardo, Luciano Libero (Universita e INFN, Ferrara (IT))
LHCb-TALK-2018-408.- Geneva : CERN, 2018 Fulltext: PDF; In : 2018 European Nuclear Physics Conference
5.
LHCb fixed-target results and prospects / Pappalardo, Luciano Libero (Universita e INFN, Ferrara (IT))
LHCb-TALK-2019-199.- Geneva : CERN, 2019 Fulltext: PDF;
In : 18th International Conference on Strangeness in Quark Matter, Bari, Italy, 10 - 15 Jun 2019
6.
Study of beam-gas interaction at the LHC for the Physics Beyond Collider Fixed-Target study / Boscolo Meneguolo, Caterina (Universita e INFN, Padova (IT)) ; Bruce, Roderik (CERN) ; Cerutti, Francesco (CERN) ; Ferro-Luzzi, Massimiliano (CERN) ; Mereghetti, Alessio (CERN) ; Molson, James (CERN) ; Redaelli, Stefano (CERN) ; Abramov, Andrey (University of London (GB))
Among several working groups formed in the framework of Physics Beyond Colliders study, launched at CERN in September 2016, there is one investigating some specific fixed-target experiment proposals. Of particular interest is the study of a high-density unpolarized or polarized gas target to be installed upstream the LHCb detector using storage cells to enhance the target density. [...]
CERN-PBC-Notes-2019-001.- Geneva : CERN, 2019 beamgas note v2019-04-18: PDF;
7.
Production of open charm and beauty states in pPb collisions with LHCb / Pappalardo, Luciano Libero (Universita e INFN, Ferrara (IT))
LHCb-TALK-2018-271.- Geneva : CERN, 2018 Fulltext: PDF;
In : BEACH2018, Peniche, Portugal, 17 - 23 Jun 2018
8.
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.
The LHCb experiment pioneered fixed-target physics with LHC beams, thanks to the SMOG internal gas target. Collisions of proton and heavy-ion beams on targets with different nuclear size can be recorded at a centre-of-mass energy of $\sqrt {s_{NN}}$ ∼ 100 GeV. [...]
LHCb-PUB-2018-015; CERN-LHCb-PUB-2018-015.- Geneva : CERN, 2018 - 39. Fulltext: PDF;
9.
Physics opportunities with SMOG2 / Di Nezza, Pasquale (INFN e Laboratori Nazionali di Frascati (IT)) ; Merli, Andrea (Università degli Studi e INFN Milano (IT))
LHCb-TALK-2019-376.- Geneva : CERN, 2019 Fulltext: PDF;
In : Implications of LHCb measurements and future prospects, Cern, Switzerland, 16 - 18 Oct 2019
10.
The Upgrade of the LHCb RICH Detectors / Fiorini, Massimiliano (Universita e INFN, Ferrara (IT))
LHCb-TALK-2018-471.- Geneva : CERN, 2018 Fulltext: PDF;
In : 10th International Workshop on Ring Imaging Cherenkov Detectors, Moscow, Russia, 29 Jul - 4 Aug 2018

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