South-Eastern Particle Theory Alliance Sussex - RHUL - UCL 2017-2020 - Sussex node

Lead Research Organisation: University of Sussex
Department Name: Sch of Mathematical & Physical Sciences

Abstract

The proposed research joins scientists of the particle theory groups at Sussex, Royal Holloway and University College London in the hunt for new physics under three broad headings:

Collider and low-energy phenomenology:

The Large Hadron Collider boosts elementary particles to velocities so close to that of light that their effective mass grows by a factor of a billion. By smashing these particles together there are new discoveries to be made, and new theories of physics to test. We will work on the complex task of relating the debris of these collisions to the new models put forward by theorists to explain some of the most puzzling questions of the universe - what is the origin of mass? and is there a quantum theory of gravity?

Particle astrophysics and cosmology:

One of the most active areas of research in the past decade has been at the interface between particle physics and
cosmology. In order to understand the history of the universe we must understand physical laws in the first moments of the Big Bang, when temperatures and particle energies were huge. Conversely, by detailed observations of the universe today we can trace back the conditions and make deductions about physical laws at high energies.
Our research will tackle big questions about the universe: why is there more matter than antimatter? what is the nature of neutrinos and dark matter? is there any evidence out there for strings or other cosmic defects? and can we understand the history of the universe from the epoch of inflation until the present day in one overarching theory?


Fixed points of quantum field theory:
The recent discovery that Standard Model-like theories can be fundamental and predictive up to highest energies without being asymptotically free has opened a door into uncharted territory. These novel theories offer alternative ways to UV complete the Standard Model and to address its open challenges from an entirely new angle. Our research will focus on the systematic evaluation of these new types of theories, including the construction of benchmark models beyond the Standard Model. We combine these studies with our continuing quest towards a quantum version of general relativity. Predictions of these scenarios will be contrasted with data from particle colliders and cosmology.

Planned Impact

The main beneficiaries of the research of our consortium outside academia will be business and industry, the education sector, school students, and the general public. The benefits will be delivered by outreach activities, by the training of highly skilled PhD students and post-docs, and by the exploration of opportunities for industrial engagement arising from the development of software tools for theoretical particle physics.

For schools and colleges we will develop activities and tools enriching students' understanding of the framework underpinning the Standard Model of particle physics. We will deliver them as part of our universities' physics outreach programme. We will also deliver talks on the research in this proposal both on and off campus.

For the general public we will disseminate our research through social media and public science events such as Nerd Nite. We will also seek to influence future decision makers amongst Arts and Humanities undergraduates through the Sussex module From Quarks to the Cosmos.

Business and the education sector will benefit from the rigorous scientific training we provide to the young researchers working with us on the research programme.
We will help students and postdocs wanting to make the transition out of academia with careers resources at department, university, and regional level.
We will also seek industrial partners for spin-offs from software we are developing, using our universities' structures supporting knowledge exchange.

Publications

10 25 50
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Alexeyev S (2018) Gravity induced non-local effects in the standard model in Physics Letters B

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Alexeyev S (2018) Gravity induced non-local effects in the standard model in Physics Letters B

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Arpino L (2019) BSM W W production with a jet veto in Journal of High Energy Physics

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Banfi A (2020) Composite Higgs at high transverse momentum in Journal of High Energy Physics

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Bond A (2018) UV conformal window for asymptotic safety in Physical Review D

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Byrnes C (2018) Primordial black holes with an accurate QCD equation of state in Journal of Cosmology and Astroparticle Physics

Studentship Projects

Project Reference Relationship Related To Start End Student Name
ST/P000819/1 01/10/2017 30/09/2020
1957518 Studentship ST/P000819/1 22/09/2017 30/03/2021 Alexander Pedersen Lind
 
Description Helsinki Visiting Professorship 
Organisation CSC – IT Centre for Science
Country Finland 
Sector Public 
PI Contribution Collaboration on theory papers, co-supervision of student research.
Collaborator Contribution Collaboration on theory papers HPC resources 20% salary, travel expenses
Impact DOI: 10.1103/PhysRevLett.117.251601 DOI: 10.1088/1475-7516/2016/10/042 DOI: 10.1088/1475-7516/2016/04/001 DOI: 10.1103/PhysRevD.92.123009 DOI: 10.1103/PhysRevD.98.103533 DOI: 10.1103/PhysRevD.97.123513 DOI: 10.1103/PhysRevD.96.103520 DOI: 10.1103/PhysRevD.95.063520 DOI: 10.1103/PhysRevLett.117.251601
Start Year 2012
 
Description Helsinki Visiting Professorship 
Organisation University of Helsinki
Country Finland 
Sector Academic/University 
PI Contribution Collaboration on theory papers, co-supervision of student research.
Collaborator Contribution Collaboration on theory papers HPC resources 20% salary, travel expenses
Impact DOI: 10.1103/PhysRevLett.117.251601 DOI: 10.1088/1475-7516/2016/10/042 DOI: 10.1088/1475-7516/2016/04/001 DOI: 10.1103/PhysRevD.92.123009 DOI: 10.1103/PhysRevD.98.103533 DOI: 10.1103/PhysRevD.97.123513 DOI: 10.1103/PhysRevD.96.103520 DOI: 10.1103/PhysRevD.95.063520 DOI: 10.1103/PhysRevLett.117.251601
Start Year 2012
 
Description Topological defects 
Organisation University of Geneva
Department Department of Physics
Country Switzerland 
Sector Academic/University 
PI Contribution Research collaboration Hosting research visits
Collaborator Contribution Research collaboration Hosting research visits HPC resources
Impact https://doi.org/10.1088/1475-7516/2016/10/042 https://doi.org/10.1103/PhysRevD.93.085014 https://doi.org/10.1088/1742-6596/600/1/012025 DOI: 10.1088/1475-7516/2018/04/014 DOI: 10.1088/1475-7516/2017/07/026 DOI: 10.1103/PhysRevD.96.023525 DOI: 10.1088/1475-7516/2018/04/016
Start Year 2010
 
Description Topological defects 
Organisation University of the Basque Country
Department Department of Theoretical Physics and History of Science
Country Spain 
Sector Academic/University 
PI Contribution Research collaboration Hosting research visits
Collaborator Contribution Research collaboration Hosting research visits HPC resources
Impact https://doi.org/10.1088/1475-7516/2016/10/042 https://doi.org/10.1103/PhysRevD.93.085014 https://doi.org/10.1088/1742-6596/600/1/012025 DOI: 10.1088/1475-7516/2018/04/014 DOI: 10.1088/1475-7516/2017/07/026 DOI: 10.1103/PhysRevD.96.023525 DOI: 10.1088/1475-7516/2018/04/016
Start Year 2010
 
Description phase transitions 
Organisation Deutsches Electronen-Synchrotron (DESY)
Country Germany 
Sector Academic/University 
PI Contribution collaboration with long term partner Thomas Konstandin
Collaborator Contribution joint research aiming at the understanding of cosmic phase transitions and related relics, such as gravitational waves
Impact There has been an number of research papers coming out of this collaboration
 
Description Lewes Sci-Screen talk 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Public/other audiences
Results and Impact Around 150 members of public attended a screening of Interstellar, at which I gave an introduction to general relativity and gravity.
Year(s) Of Engagement Activity 2018
 
Description Nerd Nite Brighton talk 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Public/other audiences
Results and Impact 60 members of public attended Nerd Nite Brighton, at which I gave a 20-minute talk on gravitational waves from the early Universe. There was lively discussion afterwards.
Year(s) Of Engagement Activity 2017
URL https://brighton.nerdnite.com/2017/10/10/nerd-nite-brighton-45-waves-vision-quantum/
 
Description Postgraduate lectures on QCD resummation at NIKHEF, Amsterdam 
Form Of Engagement Activity A formal working group, expert panel or dialogue
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Postgraduate students
Results and Impact I was asked to give a series of lectures for postgraduate students and staff on QCD jets and resummation, as can be described in the approach I have developed. I had the opportunity to describe the conceptual framework my current research is based upon, so that my work have a wider impact.
Year(s) Of Engagement Activity 2019
 
Description Public talk (Oman) 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Public/other audiences
Results and Impact 50 members of the Oman Astronomical Society attended my talk, sparking many questions afterwards.
Year(s) Of Engagement Activity 2017
 
Description Sussex Universe talk 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Schools
Results and Impact Around 60 undergraduates and school students attended my talk on gravitational waves from the early Universe. There were lots of questions.
Year(s) Of Engagement Activity 2018
URL https://sussexuniverselectureseries.wordpress.com/
 
Description Sussex University Community Day 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Public/other audiences
Results and Impact About 70 people attended my talk on gravitational waves from the early Universe at the University of Sussex Community Day. There were lots of questions.
Year(s) Of Engagement Activity 2017
 
Description Talk at Planck 2018, Bonn 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact talk at an interantional confrence
Year(s) Of Engagement Activity 2018