Experimental Particle Physics Rolling Grant 2009-2014
Lead Research Organisation:
Lancaster University
Department Name: Physics
Abstract
This research is aimed at understanding the properties of the basic building blocks of the Universe (the elementary particles) and the nature of the fundamental forces which govern the interactions of these particles. In so doing, deep insights will be gained about the origin and evolution of the Universe, especially in the first moments after the Big Bang. The Lancaster research programme covers all the main types of accelerator facilities and is based on hadron collider physics with the Tevatron (Fermilab) and LHC (CERN) machines, and the observation of long baseline neutrino oscillations in Japan. All of this work will be underpinned by Lancaster's expertise in characterising and understanding the properties of heavily irradiated silicon particle detectors, in operating high performance computing facilities on the Grid and in writing offline event reconstruction software. The hadron collider physics is expected to reveal detailed properties of B hadrons (containing heavy b-quarks) including the mixing of neutral B mesons containing strange quarks, and CP violation which is related to the existence of the matter-antimatter asymmetry in the Universe. Searches for new physics at the LHC will focus on understanding the origin of mass (and the role of the Higgs boson), the existence of new symmetries of nature (e.g. supersymmetry) and extra spatial dimensions. The neutrino oscillations programme is expected to provide important information about the masses of and the amount of mixing amongst the three known species of neutrinos. If the appearance of electron neutrinos can be observed in a muon neutrino beam then it may be possible, in a further phase of the research, to establish the existence of CP violation in the neutrino sector of the Standard Model. This could have wide reaching implications for the understanding of the matter-antimatter asymmetry of the Universe. The development of new particle accelerator technology for high energy particle physics and a broad range of alternaive applications is the mission of the Cockcroft Institute. The Lancaster group were co-founders of the Institute and remain commited to supporting its evolution.
Organisations
Publications
Aad G
(2010)
Search for new particles in two-jet final states in 7 TeV proton-proton collisions with the ATLAS detector at the LHC.
in Physical review letters
Abazov V
(2010)
Search for C P violation in B s 0 ? µ + D s - X decays in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Aaltonen T
(2010)
Combination of Tevatron searches for the standard model Higgs boson in the W+W- decay mode.
in Physical review letters
Aad G
(2010)
Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at sqrt[S(NN)] =2.76 TeV with the ATLAS detector at the LHC.
in Physical review letters
Abazov VM
(2010)
Search for events with leptonic jets and missing transverse energy in pp collisions at vs=1.96 TeV.
in Physical review letters
Aad G
(2010)
Charged-particle multiplicities in pp interactions at s = 900 GeV measured with the ATLAS detector at the LHC
in Physics Letters B
Abazov V
(2010)
Dependence of the t t ¯ production cross section on the transverse momentum of the top quark
in Physics Letters B
Abazov VM
(2010)
Search for a resonance decaying into WZ boson pairs in pp collisions.
in Physical review letters
Abazov VM
(2010)
Search for the standard model higgs Boson in the ZH-->nunubb channel in 5.2 fb{-1} of pp collisions at sqrt[s]=1.96 TeV.
in Physical review letters
Abazov VM
(2010)
Search for diphoton events with large missing transverse energy in 6.3 fb(-1) of pp collisions at vs=1.96 TeV.
in Physical review letters
Aaltonen T
(2010)
Combined Tevatron upper limit on g g ? H ? W + W - and constraints on the Higgs boson mass in fourth-generation fermion models
in Physical Review D
Abazov V
(2010)
Measurement of Z / ? * + jet + X angular distributions in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2010)
Measurement of direct photon pair production cross sections in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2010)
Measurement of t t ¯ production in the t + jets topology using p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Aad G
(2010)
Readiness of the ATLAS liquid argon calorimeter for LHC collisions
in The European Physical Journal C
Abazov VM
(2010)
Evidence for an anomalous like-sign dimuon charge asymmetry.
in Physical review letters
Abazov V
(2010)
Search for single top quarks in the tau + jets channel using 4.8 fb-1 of p p ¯ collision data
in Physics Letters B
Abazov V
(2010)
Double parton interactions in ? + 3 jet events in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov VM
(2010)
Search for ZH ? l+ l- bb production in 4.2 fb(-1) of pp collisions at sqrt[s] =1 .96 TeV.
in Physical review letters
Abazov VM
(2010)
Search for Higgs boson production in dilepton and missing energy final states with 5.4 fb(-1) of pp collisions at square root(s) = 1.96 TeV.
in Physical review letters
Aad G
(2010)
Performance of the ATLAS detector using first collision data
in Journal of High Energy Physics
Abazov V
(2010)
Measurement of the dijet invariant mass cross section in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2010)
Search for the rare decay B s 0 ? µ + µ -
in Physics Letters B
Abazov V
(2010)
Measurement of the t-channel single top quark production cross section
in Physics Letters B
Abazov VM
(2010)
Search for new fermions ("quirks") at the Fermilab Tevatron collider.
in Physical review letters
Abazov V
(2010)
Measurement of the normalized Z / ? * ? µ + µ - transverse momentum distribution in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2010)
Measurement of the t t ¯ cross section using high-multiplicity jet events
in Physical Review D
Abazov VM
(2010)
Search for the associated production of a b quark and a neutral supersymmetric Higgs boson that decays into tau pairs.
in Physical review letters
Abazov V
(2010)
Search for flavor changing neutral currents via quark-gluon couplings in single top quark production using 2.3 fb-1 of p p ¯ collisions
in Physics Letters B
Aad G
(2011)
Search for an excess of events with an identical flavour lepton pair and significant missing transverse momentum in $\sqrt{s}=7$ TeV proton-proton collisions with the ATLAS detector
in The European Physical Journal C
Abazov V
(2011)
Model-independent measurement of t-channel single top quark production in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2011)
Measurement of the WZ ? l ? l l cross section and limits on anomalous triple gauge couplings in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abe K
(2011)
Indication of electron neutrino appearance from an accelerator-produced off-axis muon neutrino beam.
in Physical review letters
Abazov VM
(2011)
Search for single vectorlike quarks in pp ¯ collisions at vs=1.96 TeV.
in Physical review letters
Abazov VM
(2011)
Search for the standard model Higgs boson in the H?WW?l?q'q decay channel.
in Physical review letters
Abazov V
(2011)
Measurement of three-jet differential cross sections d s 3 jet / d M 3 jet in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2011)
Forward-backward asymmetry in top quark-antiquark production
in Physical Review D
Abazov V
(2011)
Measurement of the anomalous like-sign dimuon charge asymmetry with 9 fb - 1 of p p ¯ collisions
in Physical Review D
Aad G
(2011)
Search for heavy long-lived charged particles with the ATLAS detector in pp collisions at s = 7 TeV
in Physics Letters B
Aad G
(2011)
Search for supersymmetry using final states with one lepton, jets, and missing transverse momentum with the ATLAS detector in vs=7 TeV pp collisions.
in Physical review letters
Abazov V
(2011)
Measurements of inclusive W + jets production rates as a function of jet transverse momentum in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Aad G
(2011)
Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in sqrt[s] = 7 TeV pp collisions at the LHC.
in Physical review letters
Abazov V
(2011)
Measurement of the t t ¯ production cross section using dilepton events in p p ¯ collisions
in Physics Letters B
Aad G
(2011)
Search for massive long-lived highly ionising particles with the ATLAS detector at the LHC
in Physics Letters B
Abazov VM
(2011)
Search for a fermiophobic and standard model Higgs boson in diphoton final states.
in Physical review letters
Aad G
(2011)
Search for high mass dilepton resonances in pp collisions at s = 7 TeV with the ATLAS experiment
in Physics Letters B
Description | The discovery of the Higgs boson at the LHC and the first observation of neutrinos of one type (muon neutrinos) changing into neutrinos of another type (electron neutrinos). |
Exploitation Route | The research is ongoing and will lead to deeper insights into nature and the properties of the fundamental particles and forces. |
Sectors | Education |
URL | http://www.lancaster.ac.uk/physics/research/experimental-particle-physics/ |