Experimental Particle Physics Rolling Grant 2006-2011
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, the observation of long baseline neutrino oscillations in Japan and, in the longer term future, high energy electron-positron collisions at the International Linear Collider (ILC). 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 electron-positron collider (the ILC) will enable a continuation of some of the research performed at the LHC but with a facility of greater precision and versatility. It could be especially crucial for the elucidation of the properties of the Higgs boson and supersymmetry if they exist as well as being an abundant source of top quraks.
Organisations
Publications
Abazov V
(2006)
Search for particles decaying into a Z boson and a photon in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2012)
Measurement of the C P -violating phase ? s J / ? ? using the flavor-tagged decay B s 0 ? J / ? ? in 8 fb - 1 of p p ¯ collisions
in Physical Review D
Abazov V
(2009)
Measurement of trilinear gauge boson couplings from W W + W Z ? l ? j j events in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2013)
Search for the Higgs boson in lepton, tau, and jets final states
in Physical Review D
Abazov V
(2009)
Search for squark production in events with jets, hadronically decaying tau leptons and missing transverse energy at s = 1.96 TeV
in Physics Letters B
Abazov V
(2011)
Direct measurement of the mass difference between top and antitop quarks
in Physical Review D
Abazov V
(2008)
Search for scalar leptoquarks and T-odd quarks in the acoplanar jet topology using of collision data at
in Physics Letters B
Abazov V
(2010)
Measurement of the t-channel single top quark production cross section
in Physics Letters B
Abazov V
(2008)
A combined search for the standard model Higgs boson at s = 1.96 TeV
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 V
(2014)
Search for the X ( 4140 ) state in B + ? J / ? ? K + decays with the D0 detector
in Physical Review D
Abazov V
(2007)
Measurement of the p p ¯ ? t t ¯ + X production cross section at s = 1.96 TeV in the fully hadronic decay channel
in Physical Review D
Abazov V
(2013)
Measurement of the combined rapidity and p T dependence of dijet azimuthal decorrelations in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2008)
Z Z ? l + l - ? ? ¯ production in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2013)
Studies of W boson plus jets production in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
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
(2012)
Improved determination of the width of the top quark
in Physical Review D
Abazov V
(2008)
Search for excited electrons in p p ¯ collisions at s = 1.96 TeV
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
Abazov V
(2007)
Search for the pair production of scalar top quarks in the acoplanar charm jet final state in collisions at
in Physics Letters B
Abazov V
(2011)
Search for a heavy neutral gauge boson in the dielectron channel with 5.4 fb-1 of p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2007)
Search for a Higgs boson produced in association with a Z boson in p p ¯ collisions
in Physics Letters B
Abazov V
(2014)
Double parton interactions in ? + 3 jet and ? + b / c jet + 2 jet events in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2010)
Evidence for an anomalous like-sign dimuon charge asymmetry
in Physical Review D
Abazov V
(2011)
Azimuthal decorrelations and multiple parton interactions in ? + 2 jet and ? + 3 jet events in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2012)
Combination of searches for anomalous top quark couplings with 5.4 fb - 1 of p p ¯ collisions
in Physics Letters B
Abazov V
(2012)
Measurement of the relative branching ratio of B s 0 ? J / ? f 0 ( 980 ) to B s 0 ? J / ? ?
in Physical Review D
Abazov V
(2011)
Measurement of color flow in t t ¯ events from p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2008)
Measurement of the ratio of the p p ¯ ? W + c -jet cross section to the inclusive p p ¯ ? W + jets cross section
in Physics Letters B
Abazov V
(2007)
Measurement of the Charge Asymmetry in Semileptonic B s 0 Decays
in Physical Review Letters
Abazov V
(2014)
Measurement of the forward-backward asymmetry in the distribution of leptons in t t ¯ events in the lepton + jets channel
in Physical Review D
Abazov V
(2007)
Measurement of the p p ¯ ? W Z + X cross section at s = 1.96 TeV and limits on W W Z trilinear gauge couplings
in Physical Review D
Abazov V
(2013)
Measurement of leptonic asymmetries and top-quark polarization in t t ¯ production
in Physical Review D
Abazov V
(2011)
Search for associated Higgs boson production using like charge dilepton events in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2007)
Measurement of the shape of the boson rapidity distribution for p p ¯ ? Z / ? * ? e + e - + X events produced at s of 1.96 TeV
in Physical Review D
Abazov V
(2009)
Combination of t t ¯ cross section measurements and constraints on the mass of the top quark and its decays into charged Higgs bosons
in Physical Review D
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
(2006)
Search for W ' boson production in the W ' ? t b ¯ decay channel
in Physics Letters B
Abazov V
(2014)
Jet energy scale determination in the D0 experiment
in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Abazov V
(2008)
Erratum: Measurement of the W W Production Cross Section in p p ¯ Collisions at s = 1.96 TeV [Phys. Rev. Lett. 94 , 151801 (2005)]
in Physical Review Letters
Abazov V
(2012)
Search for Universal Extra Dimensions in p p ¯ Collisions
in Physical Review Letters
Abazov V
(2011)
Forward-backward asymmetry in top quark-antiquark production
in Physical Review D
Abazov V
(2009)
Search for the lightest scalar top quark in events with two leptons in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2011)
Search for W ' ? t b resonances with left- and right-handed couplings to fermions
in Physics Letters B
Abazov V
(2007)
Measurement of the top quark mass in the dilepton channel
in Physics Letters B
Abazov V
(2012)
Measurement of the ? b 0 lifetime in the exclusive decay ? b 0 ? J / ? ? 0 in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2006)
Measurement of the top quark mass in the lepton + jets final state with the matrix element method
in Physical Review D
Abazov V
(2008)
Search for supersymmetry in di-photon final states at s = 1.96 TeV
in Physics Letters B