CERN Accelerating science

CERN Document Server 17 のレコードが見つかりました。  1 - 10次  レコードへジャンプ: 検索にかかった時間: 0.66 秒 
1.
Rare leptonic and semi-leptonic decays at LHCb / Hadavizadeh, Tom (Monash U.)
Rare leptonic and semi-leptonic decays offer an excellent opportunity to test the Standard Model of Particle Physics. [...]
arXiv:2406.11108.
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Fulltext
2.
b→sll decays at LHCb / Hadavizadeh, Tom (Monash University (AU))
LHCb-TALK-2024-037.- Geneva : CERN, 2024 Fulltext: PDF;
In : 58th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, It, 31 Mar - 7 Apr 2024
3. TORCH, a novel time of flight detector for LHCb upgrade II¶
Reference: Poster-2023-1105
Created: 2023. -1 p
Creator(s): Hadavizadeh, Tom

The Time Of internally Reflected CHerenkov detector (TORCH) is a proposed large-area time-of-flight detector, designed to enhance the particle identification performance of the Upgrade-II LHCb experiment in the 2–15 GeV/c momentum range. A TORCH module consists of a 10 mm thick quartz plate of dimensions 2.5 x 0.66 m from which the positions and arrival times of Cherenkov photons from a charged track are detected by highly segmented MCP-PMTs. Each MCP-PMT has an active area of 53 x 53 mm and a granularity of 64 x 8 pixels, and developed in collaboration with an industrial partner (Photek). A general overview of TORCH and its operating principles will be reviewed along with recent results from a half-length 1.25 m TORCH prototype module tested at the CERN proton synchrotron. In the most recent beam test in November 2022, the prototype module was instrumented with 6 MCP-PMTs compared to 2 MCP-PMTs in previous tests. The current status of the analysis of the latest data will be presented.

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4.
Test-beam performance of a TORCH prototype module / Kreps, Michal (Warwick U.) ; Bhasin, Srishti (Bath U. ; Bristol U.) ; Blake, Thomas (Warwick U.) ; Brook, Nick H (Bath U.) ; Cicala, Maria Flavia (Warwick U.) ; Conneely, Tom (Unlisted, UK) ; Cussans, David (Bristol U.) ; Van Dijk, Maarten Willibrord Uriël (CERN ; LPHE, Lausanne) ; Forty, Roger (CERN) ; Frei, Christoph (CERN) et al.
The TORCH time-of-flight detector is designed to provide a 15 ps timing resolution for charged particles, resulting in $K/\pi$ $(p/K)$ particle identification up to momentum of about 10(15) GeV/$c$ over a 10 m flight distance. Cherenkov photons, produced in a quartz plate of 10 mm thickness, are focused onto an array of micro-channel plate photomultipliers (MCP-PMTs) which measure the photon arrival times and spatial positions. [...]
SISSA, 2021 - 6 p. - Published in : PoS ICHEP2020 (2021) 854 Fulltext: PDF;
In : 40th International Conference on High Energy Physics (ICHEP), Prague, Czech Republic, 28 Jul - 6 Aug 2020, pp.854
5.
Mixing and $CP$ violation in charm decays at LHCb / Hadavizadeh, Tom (Monash U.)
Recent measurements of mixing and $CP$ violation in charm decays at LHCb are presented. [...]
arXiv:2105.08884.
- 4 p.
Fulltext
6.
Status of the TORCH time-of-flight detector / Hadavizadeh, Tom (Oxford U.) ; Bhasin, Srishti (Bristol U.) ; Blake, Thomas (Warwick U.) ; Brook, Nicholas  (Bath U.) ; Cicala, Maria Flavia (Warwick U.) ; Conneely, Thomas (Unlisted, UK) ; Cussans, David (Bristol U.) ; Forty, Roger (CERN) ; Frei, Christoph (CERN) ; Gabriel, Emmy P M (Edinburgh U.) et al.
TORCH is a novel time-of-flight detector, designed to provide $\pi$/K particle identification up to 10$\,\text{GeV}/c$ momentum over a 10$\,$m flight path. Based on the DIRC principle, Cherenkov photons are produced in a quartz plate of 10$\,$mm thickness, where they propagate to the periphery of the plate by total-internal reflection. [...]
SISSA, 2020 - 8 p. - Published in : PoS EPS-HEP2019 (2020) 140 Fulltext: PDF;
In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.140
7.
Searches for direct $CP$ violation in quasi-two-body $B$ meson decays at LHCb / Hadavizadeh, Tom (Monash U.) /LHCb Collaboration
The decays of $B$ mesons with contributions from loop processes give access to physics within and beyond the Standard Model. Measurements of $CP$-violating parameters, branching fractions, and polarisation fractions in processes proceeding via vector mesons help shed light on the relative contributions of the underlying processes. [...]
SISSA, 2020 - 8 p. - Published in : PoS EPS-HEP2019 (2020) 261 Fulltext from publisher: PDF;
In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.261
8.
Mixing and CP violation in Charm at LHCb / Hadavizadeh, Tom (Monash University (AU))
LHCb-TALK-2021-042.- Geneva : CERN, 2021
In : 55th Rencontres de Moriond on QCD and High Energy Interactions, Online, Online, 27 Mar - 3 Apr 2021
9.
TORCH physics performance : improving low-momentum PID performance during Upgrade IB and beyond / Bhasin, Srishti (University of Bristol (GB)) ; Blake, Thomas (University of Warwick (GB)) ; Cicala, Flavia (University of Warwick (GB)) ; Forty, Roger (CERN) ; Frei, Christoph (CERN) ; Gabriel, Emmy Pauline Maria (Nikhef National institute for subatomic physics (NL)) ; Gambetta, Silvia (The University of Edinburgh (GB)) ; Gao, Rui (University of Oxford (GB)) ; Gershon, Timothy (University of Warwick (GB)) ; Gys, Thierry (CERN) et al.
This document details the status of simulation studies for the proposed TORCH detector for operation during Upgrade Ib. The anticipated physics performance in key progresses is presented, alongside a summary of the R&D; status. [...]
LHCb-PUB-2020-006; CERN-LHCb-PUB-2020-006.- Geneva : CERN, 2020 - mult.p. Fulltext: PDF;
10.
The TORCH time-of-flight detector / Blake, Thomas (Warwick U.) ; Bhasin, Srishti (Bristol U. ; Bath U.) ; Brook, Nick (Bath U.) ; Conneely, Tom (Unlisted, UK) ; Cussans, David (Bristol U.) ; van Dijk, Maarten (CERN) ; Forty, Roger (CERN) ; Frei, Christoph (CERN) ; Gabriel, Emmy (Edinburgh U.) ; Gao, Rui (Oxford U.) et al.
The TORCH detector is a time-of-flight system that is being developed for use in particle physics experiments with the aim of providing particle identification, over a wide area, in the momentum range 2 to 10 GeV/c. The detector exploits prompt Cherenkov light produced by charge particles traversing a 10 mm thick quartz plate. [...]
SISSA, 2019 - 4 p. - Published in : PoS ICHEP2018 (2019) 667 Fulltext from publisher: PDF;
In : XXXIX International Conference on High Energy Physics, Seoul, Korea, 4 - 11 Jul 2018, pp.667

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