CERN Accelerating science

PBC Notes

Πρόσφατες προσθήκες:
The Forward Physics Facility: Sites, Experiments, and Physics Potential / Boyd, Jamie (CERN) ; Feng, Jonathan Lee (University of California Irvine (US)) ; Kling, Felix (SLAC) ; Garzelli, Maria Vittoria (CERN)
The Forward Physics Facility (FPF) is a proposal to create a cavern with the space and infrastructure to support a suite of far-forward experiments at the Large Hadron Collider during the High Luminosity era. Located along the beam collision axis and shielded from the interaction point by at least 100 m of concrete and rock, the FPF will house experiments that will detect particles outside the acceptance of all existing LHC experiments and will observe rare and exotic processes in an extremely low-background environment. [...]
arXiv:2109.10905; BNL-222142-2021-FORE; CERN-PBC-Notes-2021-025; DESY-21-142; KYUSHU-RCAPP-2021-01; LU TP 21-36, PITT-PACC-2118; SMU-HEP-21-10; UCI-TR-2021-22; FERMILAB-CONF-21-452-AE-E-ND-PPD-T.- Geneva : CERN, 2021 - 74 p. Fulltext: CERN-PBC-Notes-2021-025 - PDF; 2109.10905 - PDF;

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Considerations for a RF separated K+ beam for NA62 / Appleby, Robert Barrie (University of Manchester (GB)) ; Bernhard, Johannes (CERN) ; Dainton, John Bourke (Lancaster University (GB)) ; Burt, Graeme Campbell (Lancaster University (GB)) ; Gatignon, Lau (Lancaster University (GB)) ; Goudzovski, Evgueni (University of Birmingham (GB)) ; Jones, Rhodri (CERN) ; Lazzeroni, Cristina (University of Birmingham (GB)) ; Romano, Angela (University of Birmingham (GB)) ; Giuseppe, Ruggiero (Dipartimento di Fisica e Astronomia) et al.
In this document we assess the potential of RF separation to increase the kaon content of the high-intensity secondary beam to the NA62 experiment in the CERN North Area. The present mixed beam provides a nominal kaon flux of 45 MHz out of a total beam intensity of about 750 MHz. [...]
CERN-PBC-Notes-2021-001.- Geneva : CERN, 2021 - 38. Fulltext: PDF;

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FLUKA and ActiWiz benchmark on BDF materials / Juste, Vincent ; Casolino, Mirkoantonio (The Barcelona Institute of Science and Technology (BIST) (ES)) ; Ahdida, Claudia Christina (CERN) ; Vincke, Helmut (CERN)
This note describes the FLUKA and Actiwiz benchmark with gamma spectroscopy results of various material samples, which were irradiated during the Beam Dump Facility (BDF) prototype target test in the North Area of the Super Proton Synchrotron (SPS) at CERN. [...]
CERN-STUDENTS-Note-2019-028 ; CERN-PBC-Notes-2021-006.
- 2018.
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Physics opportunities for a fixed-target programme in the ALICE experiment / Galluccio, Francesca (Universita e sezione INFN di Napoli (IT)) ; Hadjidakis, Cynthia (Centre National de la Recherche Scientifique (FR)) ; Kurepin, Alexander (Institute for Nuclear Research, Moscow) ; Massacrier, Laure (Centre National de la Recherche Scientifique (FR)) ; Porteboeuf, S (Centre national de la recherche scientifique (FR)) ; Pressard, Kevin (Centre national de la recherche scientifique (FR)) ; Scandale, Walter (CERN) ; Topilskaya, Natalia (Institute for Nuclear Research, Moscow) ; Trzeciak, Barbara (Utrecht University) ; Uras, Antonio (Centre national de la recherche scientifique (FR)) et al.
A fixed-target programme in the ALICE experiment using the LHC proton and lead beams offers many physics opportunities related to the parton content of the nucleon and nucleus at high-$x$, the nucleon spin and the Quark-Gluon Plasma. We investigate two solutions that would allow ALICE to run in a fixed-target mode: the internal solid target coupled to a bent crystal and the internal gas target. [...]
CERN-PBC-Notes-2019-004.- Geneva : CERN, 2019 - Published in : link to original file in ESPP strategy update PDF document submitted to ESPP strategy update: PDF;

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Improvements to the SPS Slow Extraction for High Intensity Operation / Balhan, Bruno (CERN) ; Bestmann, Patrick (CERN) ; Bjorkman, Daniel (CERN) ; Borburgh, Jan (CERN) ; Butcher, Mark (CERN) ; Calviani, Marco (CERN) ; Di Castro, Mario (CERN) ; Donze, Mathieu (CERN) ; Esposito, Luigi Salvatore (CERN) ; Fraser, Matthew Alexander (CERN) et al.
Slow extraction using the third-integer resonance and thin electrostatic septa as used in the SPS to serve the North Area is a process with inherent beam loss. [...]
CERN-ACC-NOTE-2019-0010 ; CERN-PBC-Notes-2021-007.
- 2019. - 87 p.
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VELO with SMOG2 Impedance-based Heating Localization Analysis / Popovic, Branko Kosta (CERN)
In connection to the proposed upgrade (SMOG2) of the existing gas injection system for the LHCb experiment (SMOG), the potential heating due to induced longitudinal beam impedance of the VELO with the SMOG2 is investigated. The analysis looks at heating of the individual components of the object in the open position, especially potential heating of the SMOG2 cell. [...]
CERN-PBC-Notes-2019-003.- Geneva : CERN, 2019 Fulltext: PDF;

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Note on the Efficiency of Differential Pumping in the LHC Polarized Gas Target (PGT) / Steffens, Erhard (University of Erlangen)
For a sufficient density of a window-less gas target based on a storage cell, a substantial gas flow rate is required, exceeding that of UHV vacuum systems. Therefore, differential pumping has to be applied in order to limit the gas flow into neighbouring sections. [...]
CERN-PBC-Notes-2019-002.- Geneva : CERN, 2019 Fulltext: PDF;

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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, 08 beamgas note v2019-04-18: PDF;

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Calculation of the allowed aperture for a gas storage cell in IP8 / Boscolo Meneguolo, Caterina (CERN) ; Bruce, Roderik (CERN) ; Ferro-Luzzi, Massimiliano (CERN) ; Giovannozzi, Massimo (CERN) ; Redaelli, Stefano (CERN)
In the framework of the Physics Beyond Collider studies, a working group was created in order to study some specific proposals to perform fixed-target physics experiments at the Large Hadron Collider. Among these proposals, the possibility has been described of installing an internal gas target, injecting unpolarized or polarized gas inside a storage cell (SC) located around the beam, close to the LHCb detector. [...]
CERN-PBC-Notes-2018-008.- Geneva : CERN, 2018 Main document PDF file for CERN-PBC-Notes-2018-008: PDF;

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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;

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