LHCb Trigger based B physics analysis
Lead Research Organisation:
University of Liverpool
Department Name: Physics
Abstract
The student will develop the selection for the analysis before data taking and reconstruction of decay channels required to correct for systematic bias of the detector to correct the electron/muon reconstruction efficiency ratio and evaluate the trigger efficiencies. Data throughput for a defined cost and power envelope will be analysed to understand effects of residual misalignments and calibration issues in data reconstruction. Highly parallelised data monitoring and calibration for the new VELO pixel detector will be developed.
People |
ORCID iD |
| David Hutchcroft (Primary Supervisor) | |
| Tom Williams Harrison (Student) |
Publications
Aaij R
(2019)
Amplitude Analysis of B ± ? p ± K + K - Decays
in Physical Review Letters
Aaij R
(2020)
Amplitude analysis of the B + ? p + p + p - decay
in Physical Review D
Aaij R
(2020)
Determination of quantum numbers for several excited charmed mesons observed in B - ? D * + p - p - decays
in Physical Review D
Aaij R
(2018)
Evidence for an $$\eta _c(1S) \pi ^-$$ ? c ( 1 S ) p - resonance in $$B^0 \rightarrow \eta _c(1S) K^+\pi ^-$$ B 0 ? ? c ( 1 S ) K + p - decays
in The European Physical Journal C
Aaij R
(2019)
First Measurement of Charm Production in its Fixed-Target Configuration at the LHC.
in Physical review letters
Aaij R
(2020)
First Observation of Excited O_{b}^{-} States.
in Physical review letters
Aaij R
(2018)
First Observation of the Doubly Charmed Baryon Decay ?_{cc}^{++}??_{c}^{+}p^{+}.
in Physical review letters
Aaij R
(2019)
First Observation of the Radiative Decay ?_{b}^{0}???.
in Physical review letters
Aaij R
(2020)
Measurement of $${\psi {(2S)}} $$ production cross-sections in proton-proton collisions at $$\sqrt{s} =7$$ and $$13\text { TeV} $$
in The European Physical Journal C
Aaij R
(2018)
Measurement of Angular and CP Asymmetries in D^{0}?p^{+}p^{-}µ^{+}µ^{-} and D^{0}?K^{+}K^{-}µ^{+}µ^{-} Decays.
in Physical review letters
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| ST/P006752/1 | 01/10/2017 | 30/09/2024 | |||
| 2021483 | Studentship | ST/P006752/1 | 01/10/2017 | 31/12/2021 | Tom Williams Harrison |
| Description | 6-month Placement at Exgence Ltd |
| Organisation | Exgence |
| Country | United Kingdom |
| Sector | Private |
| PI Contribution | As a requirement of the STFC funding of this PhD, I undertook a 6-month placement at a company unrelated to my research work. This involved designing and implementing a machine-learning based product at Exgence Ltd, a Manchester startup to provide solutions to software vendor companies. |
| Collaborator Contribution | See above. |
| Impact | I have gained experience in applying machine learning and software engineering skills outside academia in the wider economy. |
| Start Year | 2019 |
| Title | LHCb Decoder Software |
| Description | I have written a piece of software to decode outgoing data from the new LHCb detector between multiple formats, for use in different components of the detector software. The decoding software also reconstructs time data from the output and reorders the data in real time. |
| Type Of Technology | Software |
| Year Produced | 2020 |
| Open Source License? | Yes |
| Impact | This tool is a necessary part of the LHCb upgrade for the 3rd run of the LHC |
| Description | Liverpool CERN Summer School |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | Regional |
| Primary Audience | Schools |
| Results and Impact | During my 6-month long-term attachment at CERN in 2019, I assisted in a Liverpool-hosted summer school to 6th-form students, designed to continue to foster their interest in high-energy physics and help them to form a coherent plan for beginning a career in the field. Students from a region of the UK were selected based on an application process to find talented individuals looking to pursue a career in particle physics. They were taken to CERN, where a week-long summer school was hosted by Liverpool PhD students on LTA. Components of the school included: * Lectures on topics at the forefront of high-energy physics, such as neutrinos and super-symmetry, as well as the applications of big data and machine learning to the field * Workshops to teach skills relevant to the field, such as C++ programming, and use of the ROOT software framework. A workshop on detector design was also held, where students were encouraged to design a hypothetical new detector that, if commissioned and created, would provide novel or useful insights into particle physics. The designs were presented by the students and judged by the PhD students, with small prizes given. * Quizzes on topics in particle physics and the people behind discoveries * Question/answer sessions from the school students to the PhD students on current problems in physics * Informal conversation sessions where the school students can find out about life as a researcher, and how to pursue a physics career path |
| Year(s) Of Engagement Activity | 2019 |