Programme of Research in Experimental Particle Physics at the University of Warwick, 2006-2011
Lead Research Organisation:
University of Warwick
Department Name: Physics
Abstract
The scope of the proposed research lies in two distinct areas: the physics of particles containing the beauty quark, and the physics of neutrinos: 1). We aim to further our research into matter/anti-matter asymmetry (CP Violation) with Beauty mesons at the BABAR experiment. This is important, because we have shown that the leading source of CP violation at low energies is consistent with the Standard Model mechanism of CP violation. However, cosmological considerations indicate that there should be other sources of CP violation in Nature, so we aim to make further sensitive tests with beauty mesons, in order to see if any evidence for additional sources of CP violation in Nature may appear here. 2). The elucidation of the properties of neutrinos. These are very light, neutral particles which are emitted, for example, by the sun, and in radioactive beta decay. They have recently been found to oscillate, ie. transmute from one type to another, while they propagate. We propose to build part of the T2K experiment, which aims to determine the details of this behaviour. In particular, it aims to establish the rate and extent of oscillations between muon- and electron-neutrinos, and to derive related information on neutrino masses. We also propose to continue research and development on the COBRA experiment, which aims to identify neutrinoless double beta decays in CdZnTe. This would provide information on the absolute mass scale of neutrinos and establish the neutrinos as Majorana particles, equivalent to their own anti-particles. We will also continue research and development on a future neutrino factory, and on a new measurement of the absolute mass of the neutrino.
Publications
Green A
(2007)
Optimizing WIMP directional detectors
in Astroparticle Physics
Harrison P
(2009)
The matrix of unitarity triangle angles for quarks
in Physics Letters B
Harrison P
(2007)
Plaquette invariants and the flavour symmetric description of quark and neutrino mixings
in Physics Letters B
Harrison P
(2006)
Real invariant matrices and flavour-symmetric mixing variables with emphasis on neutrino oscillations
in Physics Letters B
Harrison, P.F. And Roythorne, D.R.J. And Scott, W.G.
(2009)
Is the Unitarity Triangle Right?
Harrison, P.F. And Roythorne, D.R.J. And Scott, W.G.
(2008)
Flavour Permutation Symmetry and Fermion Mixing
Harrison, P.F. And Scott, W.G.
(2009)
A Flavour-Symmetric Perspective on Neutrino Mixing
Henry S
(2007)
The 66-channel SQUID readout for CRESST II
in Journal of Instrumentation
Lees J
(2013)
Production of charged pions, kaons, and protons in e + e - annihilations into hadrons at s = 10.54 GeV
in Physical Review D
Lees J
(2013)
Study of the decay B ¯ 0 ? ? c + p ¯ p + p - and its intermediate states
in Physical Review D
Lees J
(2013)
Search for B ? K ( * ) ? ? ¯ and invisible quarkonium decays
in Physical Review D
Lees J
(2013)
Evidence of B + ? t + ? decays with hadronic B tags
in Physical Review D
Lees J
(2014)
Evidence for the decay B 0 ? ? ? and search for B 0 ? ? ?
in Physical Review D
Lees J
(2013)
Measurement of the e + e - ? p p ¯ cross section in the energy range from 3.0 to 6.5 GeV
in Physical Review D
Lees J
(2013)
Branching fraction measurement of B + ? ? l + ? decays
in Physical Review D
Lees J
(2013)
Measurement of C P -violating asymmetries in B 0 ? ( ? p ) 0 decays using a time-dependent Dalitz plot analysis
in Physical Review D
Lees J
(2013)
Observation of direct C P violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle ? with B ± ? D ( * ) K ( * ) ± decays
in Physical Review D
Lees J
(2014)
Search for lepton-number violating B + ? X - l + l ' + decays
in Physical Review D
Lees J
(2013)
Search for C P violation in the decays D ± ? K S 0 K ± , D s ± ? K S 0 K ± , and D s ± ? K S 0 p ±
in Physical Review D
Lees J
(2013)
Search for di-muon decays of a low-mass Higgs boson in radiative decays of the ? ( 1 S )
in Physical Review D
Lees J
(2013)
Measurement of the mass of the D 0 meson
in Physical Review D
Lees J
(2013)
Measurement of the B + ? ? l + ? branching fraction with semileptonically tagged B mesons
in Physical Review D
Lees J
(2013)
Search for a low-mass scalar Higgs boson decaying to a tau pair in single-photon decays of ? ( 1 S )
in Physical Review D
Lees J
(2013)
Search for direct C P violation in singly Cabibbo-suppressed D ± ? K + K - p ± decays
in Physical Review D
Lees J
(2013)
Precision measurement of the e + e - ? K + K - ( ? ) cross section with the initial-state radiation method at BABAR
in Physical Review D
Description | LHcb |
Organisation | European Organization for Nuclear Research (CERN) |
Department | Large Hadron Collider Beauty Experiment (LHCb) |
Country | Switzerland |
Sector | Public |
PI Contribution | The research team at The University of Warwick have provides expertise and personnel to help with the continued operation and data collection at LHcb as well as data analysis and interpretation of results collected by Warwick. |
Collaborator Contribution | Members of the LHcb team have provided resources and experimental time to allow for the collection of data which has been used by members of Warwick to produce output for LHcb, with the appropriate acknowledgements to Warwick staff. |
Impact | Any publication which indicates a LHcb Collaboration or authored by 'Aaij, R. and others' |
Start Year | 2008 |
Description | MICE |
Organisation | International Muon Ionization Cooling Experiment |
Country | United Kingdom |
Sector | Public |
PI Contribution | The research team at The University of Warwick have provides expertise and personnel to help with the continued operation and data collection at MICE as well as data analysis and interpretation of results collected by Warwick. |
Collaborator Contribution | Members of the MICE team have provided resources and experimental time to allow for the collection of data which has been used by members of Warwick to produce output for MICE, with the appropriate acknowledgements to Warwick staff. |
Impact | Publications with reference MICE experimental data |
Start Year | 2006 |
Description | Neutrino Factory |
Organisation | Rutherford Appleton Laboratory |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | The research team at The University of Warwick have provides expertise and personnel to help with the continued Research and development into the Neutrino Factory as well as data analysis and interpretation of results collected by Warwick and other institutions. |
Collaborator Contribution | Members of the Neutrino Factory team have provided resources and ideas to allow for the development of new techniques which have been used by members of Warwick to produce new insights into techniques and equipment. |
Impact | Publication which make reference to the Neutrino Factory |
Description | T2K |
Organisation | T2K Collaboration |
Country | Global |
Sector | Academic/University |
PI Contribution | The research team at The University of Warwick have provides expertise and personnel to help with the continued operation and data collection at ATLAS as well as data analysis and interpretation of results collected by Warwick. |
Collaborator Contribution | Members of the T2K team have provided resources and experimental time to allow for the collection of data which has been used by members of Warwick to produce output for T2K, with the appropriate acknowledgements to Warwick staff. |
Impact | All publications which have used T2K data. |