B. Krikler
A5108167445- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- Astrophysics and Cosmic Phenomena
- Distributed and Parallel Computing Systems
- Black Holes and Theoretical Physics
- Advanced Data Storage Technologies
- Scientific Computing and Data Management
- Radiation Detection and Scintillator Technologies
- Particle Accelerators and Free-Electron Lasers
- Stochastic processes and financial applications
- Nuclear physics research studies
- Electronic and Structural Properties of Oxides
- High-pressure geophysics and materials
- Medical Imaging Techniques and Applications
- Muon and positron interactions and applications
- Big Data Technologies and Applications
- advanced mathematical theories
- Optical properties and cooling technologies in crystalline materials
University of Bristol
2018-2025
A. Alikhanyan National Laboratory
2022-2024
Institute of High Energy Physics
2020-2024
University of Antwerp
2024
University of Edinburgh
2024
Rutherford Appleton Laboratory
2023
University of California, San Diego
2023
Brookhaven National Laboratory
2023
Imperial College London
2019-2022
Florida State University
2020
Abstract We propose in this White Paper a concept for space experiment using cold atoms to search ultra-light dark matter, and detect gravitational waves the frequency range between most sensitive ranges of LISA terrestrial LIGO/Virgo/KAGRA/INDIGO experiments. This interdisciplinary experiment, called Atomic Experiment Dark Matter Gravity Exploration (AEDGE), will also complement other planned searches exploit synergies with wave detectors. give examples extended sensitivity matter offered...
LUX-ZEPLIN (LZ) is a next-generation dark matter direct detection experiment that will operate 4850 feet underground at the Sanford Underground Research Facility (SURF) in Lead, South Dakota, USA. Using two-phase xenon detector with an active mass of 7 tonnes, LZ search primarily for low-energy interactions weakly interacting massive particles (WIMPs), which are hypothesized to make up our galactic halo. In this paper, projected WIMP sensitivity presented based on latest background estimates...
Following the first science results of LUX-ZEPLIN (LZ) experiment, a dual-phase xenon time projection chamber operating from Sanford Underground Research Facility in Lead, South Dakota, USA, we report initial limits on model-independent nonrelativistic effective field theory describing complete set possible interactions weakly interacting massive particle (WIMP) with nucleon. These utilize same 5.5 t fiducial mass and 60 live days exposure collected for LZ spin-independent spin-dependent...
The Technical Design for the COMET Phase-I experiment is presented in this paper. an at J-PARC, Japan, which will search neutrinoless conversion of muons into electrons field aluminium nucleus ($\mu-e$ conversion, $\mu^- N \to e^- N$); a lepton flavor violating process. experimental sensitivity goal process $3.1\times10^{-15}$, or 90 % upper limit branching ratio $7\times 10^{-15}$, factor 100 improvement over existing limit. expected number background events 0.032. To achieve target and...
The LUX-ZEPLIN experiment recently reported limits on WIMP-nucleus interactions from its initial science run, down to $6.5\times10^{-48}$ cm$^2$ for the spin-independent interaction of a 30 GeV/c$^2$ WIMP at 90% confidence level. In this paper, we present comprehensive analysis backgrounds important result and other upcoming physics analyses, including neutrinoless double-beta decay searches effective field theory interpretations data. We confirm that in-situ determinations bulk fixed...
The LUX-ZEPLIN (LZ) experiment is a dark matter detector centered on dual-phase xenon time projection chamber. We report searches for new physics appearing through few-keV-scale electron recoils, using the experiment's first exposure of 60 live days and fiducial mass 5.5 t. data are found to be consistent with background-only hypothesis, limits set models including solar axion coupling, neutrino magnetic moment millicharge, couplings galactic axionlike particles hidden photons. Similar...
Searches for dark matter with liquid xenon time projection chamber experiments have traditionally focused on the region of parameter space that is characteristic weakly interacting massive particles, ranging from a few GeV/$c^2$ to TeV/$c^2$. Models mass much heavier than this are well motivated by early production mechanisms different standard thermal freeze-out, but they generally been less explored experimentally. In work, we present re-analysis first science run (SR1) LZ experiment, an...
In this work, we investigate calcium titanate (CaTiO3 - CTO) using X-ray diffraction and Raman spectroscopy up to 60 55 GPa respectively. Both experiments show that the orthorhombic Pnma structure remains stable highest pressures measured, in contradiction ab-initio predictions. A fit of compression data with a second-order Birch-Murnaghan equation state yields bulk modulus K0 181.0(6) GPa. The distortion is found increase slightly pressure, agreement previous at lower general rules for...
Scikit-HEP is a community-driven and community-oriented project with the goal of providing an ecosystem for particle physics data analysis in Python. toolset approximately twenty packages few “affiliated” packages. It expands typical Python tools physicists. Each package focuses on particular topic, interacts other toolset, where appropriate. Most are easy to install many environments; much work has been done this year provide binary “wheels” PyPI conda-forge The gaining interest momentum,...
The LUX-ZEPLIN (LZ) experiment will enable a neutrinoless double $\ensuremath{\beta}$ decay search in parallel to the main science goal of discovering dark matter particle interactions. We report expected LZ sensitivity $^{136}\mathrm{Xe}$ decay, taking advantage significant ($>600$ kg) mass contained within active volume without isotopic enrichment. After 1000 live-days, median exclusion half-life is projected be $1.06\ifmmode\times\else\texttimes\fi{}{10}^{26}$ years (90% confidence...
LUX-ZEPLIN is a dark matter detector expected to obtain world-leading sensitivity weakly-interacting massive particles interacting via nuclear recoils with $\ensuremath{\sim}7$-tonne xenon target mass. This paper presents projections several low-energy signals of the complementary electron recoil signal type: 1) an effective neutrino magnetic moment, and 2) millicharge, both for $pp$-chain solar neutrinos, 3) axion flux generated by Sun, 4) axionlike forming Galactic matter, 5) hidden...
Forbidden in the Standard Model, Charged Lepton Flavour Violation is a strong probe for New Physics. The COMET Experiment will measure one of these processes: that COherent Muon to Electron Transitions, where muon converts an electron presence nucleus without emission any neutrinos. aims improve current limit on this process by four orders magnitude. Being built two phases at J-PARC, Tokai, Japan, first take data 2018, it should achieve factor 100 improvement. This report gives overview...
Background: Heavy charged particles after nuclear muon capture are an important physics background to the muon-to-electron conversion experiments Mu2e and COMET, which will search for lepton flavor violation at unprecedented level of sensitivity.Purpose: The AlCap experiment aimed measure yield energy spectra protons, deuterons, tritons, $\ensuremath{\alpha}$ emitted muons stopped in Al, Si, Ti low-energy range relevant experiments.Methods: Individual particle types were identified layered...
The projected sensitivity of the LUX-ZEPLIN (LZ) experiment to two-neutrino and neutrinoless double $\ensuremath{\beta}$ decay $^{134}\mathrm{Xe}$ is presented. LZ a 10-tonne xenon time-projection chamber optimized for detection dark matter particles expected start operating in 2021 at Sanford Underground Research Facility, USA. Its large mass natural provides an exceptional opportunity search $^{134}\mathrm{Xe}$, which detectors enriched $^{136}\mathrm{Xe}$ are less effective. For mode,...
Two-phase xenon detectors, such as that at the core of forthcoming LZ dark matter experiment, use photomultiplier tubes to sense primary (S1) and secondary (S2) scintillation signals resulting from particle interactions in their liquid target. This paper describes a simulation study exploring two techniques lower energy threshold gain sensitivity low-mass astrophysical neutrinos, which will be applicable other detectors. The is determined by number detected S1 photons; typically, these must...
Common and community software packages, such as ROOT, Geant4 event generators have been a key part of the LHC's success so far continued development optimisation will be critical in future. The challenges are driven by an ambitious physics programme, notably LHC accelerator upgrade to high-luminosity, HL-LHC, corresponding detector upgrades ATLAS CMS. In this document we address issues for that is used multiple experiments (usually even more widely than CMS) maintained teams developers who...
An analysis description language is a domain specific capable of describing the contents an LHC in standard and unambiguous way, independent any computing framework. It designed for use by anyone with interest in, knowledge of, physics, i.e., experimentalists, phenomenologists other enthusiasts. Adopting languages would bring numerous benefits experimental phenomenological communities ranging from preservation beyond lifetimes experiments or software to facilitating abstraction, design,...
Searches for dark matter with liquid xenon time projection chamber experiments have traditionally focused on the region of parameter space that is characteristic weakly interacting massive particles, ranging from a few <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>GeV</a:mi><a:mo>/</a:mo><a:msup><a:mrow><a:mi>c</a:mi></a:mrow><a:mrow><a:mn>2</a:mn></a:mrow></a:msup></a:mrow></a:math> to <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"...
The LUX-ZEPLIN experiment recently reported limits on WIMP-nucleus interactions from its initial science run, down to $9.2\times10^{-48}$ cm$^2$ for the spin-independent interaction of a 36 GeV/c$^2$ WIMP at 90% confidence level. In this paper, we present comprehensive analysis backgrounds important result and other upcoming physics analyses, including neutrinoless double-beta decay searches effective field theory interpretations data. We confirm that in-situ determinations bulk fixed...
The LUX-ZEPLIN (LZ) experiment is a dark matter detector centered on dual-phase xenon time projection chamber. We report searches for new physics appearing through few-keV-scale electron recoils, using the experiment's first exposure of 60 live days and fiducial mass 5.5t. data are found to be consistent with background-only hypothesis, limits set models including solar axion coupling, neutrino magnetic moment millicharge, couplings galactic axion-like particles hidden photons. Similar...
Binned data frames are a generalisation of multi-dimensional histograms, represented in tabular format with one category per row containing the labels, bin contents, uncertainties and so on. Pandas is an industry-standard tool, which provides frame implementation complete routines for manipultion, persistency, visualisation, easy access to “big data” scientific libraries machine learning tools. FAST (the Faster Analysis Software Taskforce) has developed generic approach typical binned HEP...