South-Eastern Particle Theory Alliance Sussex - RHUL - UCL 2020-2023 - 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 four broad headings:
Collider and low-energy phenomenology:
Particle collisions at the energy frontier, presented by the Large Hadron Collider, allow to produce or rule out conjectured new particles thousands of times as heavy as the proton. At intensity frontier, extremely precise measurements of particle interactions allow to probe for even heavier particles in an indirect fashion. Here we explore and combine both directions to unravel the structure of the world at smaller distances than ever, asking questions such as: what makes the known particles so much lighter than the Planck mass of quantum gravity? Is there a unified theory of matter and forces? And how can we best use present and future experiments to shine light on them?
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? can we use gravitational waves to look at the first picoseconds of the Universe? how can the new quantum technology be used to search for dark matter and other invisible particles? and how can quantum theory and gravity be combined, and can we see their joint effects in the cosmos?
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.
Tools for high energy physics:
The high-luminosity LHC (HL-LHC) was announced as top priority of the European Strategy for Particle Physics and will dominate collider physics in the next decade. The aim of this science area is to improve tools for phenomenologically relevant BSM scenarios so that they meet the needs of the HL-LHC.
London in the hunt for new physics under four broad headings:
Collider and low-energy phenomenology:
Particle collisions at the energy frontier, presented by the Large Hadron Collider, allow to produce or rule out conjectured new particles thousands of times as heavy as the proton. At intensity frontier, extremely precise measurements of particle interactions allow to probe for even heavier particles in an indirect fashion. Here we explore and combine both directions to unravel the structure of the world at smaller distances than ever, asking questions such as: what makes the known particles so much lighter than the Planck mass of quantum gravity? Is there a unified theory of matter and forces? And how can we best use present and future experiments to shine light on them?
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? can we use gravitational waves to look at the first picoseconds of the Universe? how can the new quantum technology be used to search for dark matter and other invisible particles? and how can quantum theory and gravity be combined, and can we see their joint effects in the cosmos?
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.
Tools for high energy physics:
The high-luminosity LHC (HL-LHC) was announced as top priority of the European Strategy for Particle Physics and will dominate collider physics in the next decade. The aim of this science area is to improve tools for phenomenologically relevant BSM scenarios so that they meet the needs of the HL-LHC.
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.
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.
Organisations
Publications
Calmet X
(2022)
A brief history of Hawking's information paradox
in Europhysics Letters
Calmet X
(2022)
A Brief History of Hawking's Information Paradox
Banfi A
(2024)
A POWHEG generator for deep inelastic scattering
in Journal of High Energy Physics
Dorsch G
(2022)
A sonic boom in bubble wall friction
in Journal of Cosmology and Astroparticle Physics
Sherrill N
(2023)
Analysis of atomic-clock data to constrain variations of fundamental constants
in New Journal of Physics
Davies Joshua
(2023)
Analytic approximations of $2\to 2$ processes with massive internal particles
in arXiv e-prints
Davies J
(2023)
Analytic approximations of 2 ? 2 processes with massive internal particles
in Journal of High Energy Physics
Hiller G
(2020)
Anomalous magnetic moments from asymptotic safety
in Physical Review D
Litim D
(2021)
ARGES - Advanced Renormalisation Group Equation Simplifier
in Computer Physics Communications
Litim D
(2020)
ARGES -- Advanced Renormalisation Group Equation Simplifier
Litim D
(2023)
Asymptotic Safety Guaranteed at Four Loop
Bond A
(2022)
Asymptotic safety guaranteed for strongly coupled gauge theories
in Physical Review D
Bond A
(2020)
Asymptotic safety with Majorana fermions and new large N equivalences
in Physical Review D
Bause R
(2022)
B-anomalies from flavorful U(1)$$'$$ extensions, safely
in The European Physical Journal C
Huber S
(2023)
Baryogenesis from transitional C P violation in the early Universe
in Physical Review D
Calmet X
(2022)
Black Holes in Quantum Gravity
Banfi A
(2020)
Composite Higgs at high transverse momentum
in Journal of High Energy Physics
Bond A
(2021)
Conformal Windows beyond Asymptotic Freedom
Bond A
(2021)
Conformal windows beyond asymptotic freedom
in Physical Review D
Cresswell-Hogg C
(2023)
Critical fermions with spontaneously broken scale symmetry
in Physical Review D
Cresswell-Hogg C
(2022)
Critical Fermions with Spontaneously Broken Scale Symmetry
Reichert M
(2022)
Dark confinement and chiral phase transitions: gravitational waves vs matter representations
in Journal of High Energy Physics
Caprini C
(2020)
Detecting gravitational waves from cosmological phase transitions with LISA: an update
in Journal of Cosmology and Astroparticle Physics
Dienes K
(2022)
Evaluating Lyman- a constraints for general dark-matter velocity distributions: Multiple scales and cautionary tales
in Physical Review D
Dienes K
(2022)
Extracting dark-matter velocities from halo masses: A reconstruction conjecture
in Physical Review D
Hiller G
(2022)
Fixed Points in Supersymmetric Extensions of the Standard Model
Hiller G
(2022)
Fixed points in supersymmetric extensions of the standard model
in The European Physical Journal C
Alioli S
(2021)
Four-lepton production in gluon fusion at NLO matched to parton showers
in The European Physical Journal C
Kluth Y
(2022)
Functional Renormalisation for $f(R_{µ??s})$ Quantum Gravity
Kluth Y
(2022)
Functional renormalization for f ( R µ ? ? s ) quantum gravity
in Physical Review D
Calmet X
(2021)
Fundamental limit on angular measurements and rotations from quantum mechanics and general relativity
in Physics Letters B
Davies J
(2022)
General gauge-Yukawa-quartic ß-functions at 4-3-2-loop order
in Journal of High Energy Physics
Lind A
(2021)
H1jet, a fast program to compute transverse momentum distributions
in The European Physical Journal C
Kluth Y
(2020)
Heat kernel coefficients on the sphere in any dimension
in The European Physical Journal C
Davies J
(2022)
Higgs boson contribution to the leading two-loop Yukawa corrections to gg ? HH
in Journal of High Energy Physics
Davies J
(2021)
Higgs boson decay into photons at four loops
Davies J
(2021)
Higgs boson decay into photons at four loops
Davies J
(2021)
Higgs boson decay into photons at four loops
in Physical Review D
Banfi A
(2022)
Higher-order non-global logarithms from jet calculus
in Journal of High Energy Physics
Geng L
(2021)
Implications of new evidence for lepton-universality violation in b ? s l + l - decays
in Physical Review D
Calmet X
(2021)
Implications of quantum gravity for dark matter
in International Journal of Modern Physics D
Title | H1jet |
Description | H1jet is a fast code that computes the total cross section and differential distribution in the transverse momentum of a colour singlet. In its current version, H1jet implements only leading-order 2 ? 1 and 2 ? 2 processes, but could be extended to higher orders. H1jet is mainly designed for theorists and can be fruitfully used to assess deviations of selected new physics models from the Standard Model behaviour, as well as to quickly obtain distributions of relevance for Standard Model phenomenology. H1jet is written in Fortran 95 and Python 3, and takes about 1 second to run with default parameters. |
Type Of Technology | Software |
Year Produced | 2021 |
Open Source License? | Yes |
Impact | This program is very fast, and theorists can easily implement their models in it. |
URL | https://h1jet.hepforge.org/ |