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
(2012)
Measurement of the semileptonic charge asymmetry in B 0 meson mixing with the D0 detector
in Physical Review D
Abazov V
(2011)
Precise measurement of the top-quark mass from lepton + jets events at D0
in Physical Review D
Abazov V
(2012)
Search for Higgs bosons of the minimal supersymmetric standard model in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2012)
Measurement of the top-quark mass in p p ¯ collisions using events with two leptons
in Physical Review D
Abazov V
(2013)
Measurement of the ratio of differential cross sections s ( p p ¯ ? Z + b jet ) / s ( p p ¯ ? Z + jet ) in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2013)
Search for Z H ? l + l - b b ¯ production in 9.7 fb - 1 of p p ¯ collisions with the D0 detector
in Physical Review D
Abazov V
(2010)
Measurement of the t-channel single top quark production cross section
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
(2012)
Measurement of the photon + b -jet production differential cross section in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2009)
Measurements of differential cross sections of Z / ? * + jets + X events in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
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
(2012)
Study of the decay B s 0 ? J / ? f 2 ' ( 1525 ) in µ + µ - K + K - final states
in Physical Review D
Abazov V
(2011)
Search for neutral Higgs bosons in the multi-b-jet topology in 5.2 fb - 1 of p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2008)
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
(2006)
Measurement of the top quark mass in the lepton + jets final state with the matrix element method
in Physical Review D
Abazov V
(2012)
Search for Higgs boson production in oppositely charged dilepton and missing energy events in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2013)
Measurement of the p p ¯ ? W + b + X production cross section at s = 1.96 TeV
in Physics Letters B
Abazov V
(2013)
Search for a Higgs boson in diphoton final states with the D0 detector in 9.6 fb - 1 of 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
(2009)
Measurement of the top quark mass in final states with two leptons
in Physical Review D
Abazov V
(2009)
Search for charged Higgs bosons in top quark decays
in Physics Letters B
Abazov V
(2013)
Measurement of the Z Z production cross section and search for the standard model Higgs boson in the four lepton final state in p p ¯ collisions
in Physical Review D
Abazov V
(2007)
Measurement of the top quark mass in the dilepton channel
in Physics Letters B
Abazov V
(2012)
Measurement of the W Z and Z Z production cross sections using leptonic final states in 8.6 fb - 1 of p p ¯ collisions
in Physical Review D
Abazov V
(2013)
Search for Higgs boson production in oppositely charged dilepton and missing energy final states in 9.7 fb - 1 of p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2013)
Search for the standard model Higgs boson in l ? + jets final states in 9.7 fb - 1 of p p ¯ collisions with the D0 detector
in Physical Review D
Abazov V
(2007)
Measurement of the W boson helicity in top quark decays at D0
in Physical Review D
Abazov V
(2009)
Search for charged Higgs bosons in decays of top quarks
in Physical Review D
Abazov V
(2010)
Measurement of the t t ¯ cross section using high-multiplicity jet events
in Physical Review D
Abazov V
(2009)
Search for pair production of second generation scalar leptoquarks
in Physics Letters B
Abazov V
(2012)
Search for anomalous Wtb couplings in single top quark production in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2012)
Search for the standard model Higgs boson in the Z H ? ? ? ¯ b b ¯ channel in 9.5 fb-1 of p p ¯ collisions at s = 1.96 TeV
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)
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
(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 the asymmetry in angular distributions of leptons produced in dilepton t t ¯ final states in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2006)
Search for W ' boson production in the W ' ? t b ¯ decay channel
in Physics Letters B
Abazov V
(2013)
Evidence for s-channel single top quark production in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
Abazov V
(2013)
Measurement of the ratio of three-jet to two-jet cross sections in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
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)
Measurement of the Z Z production cross section in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2013)
Search for charged massive long-lived particles at s = 1.96 TeV
in Physical Review D
Abazov V
(2011)
Publisher's Note: Search for C P violation in B s 0 ? µ + D s - X decays in p p ¯ collisions at s = 1.96 TeV [Phys. Rev. D 82 , 012003 (2010)]
in Physical Review D
Abazov V
(2012)
Search for Z ? events with large missing transverse energy in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2008)
Measurement of differential Z / ? * + jet + X cross sections in p p ¯ collisions at s = 1.96 TeV
in Physics Letters B
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
(2008)
Search for squarks and gluinos in events with jets and missing transverse energy using 2.1 fb-1 of p p ¯ collision data at s = 1.96 TeV
in Physics Letters B
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
(2013)
Measurement of the muon charge asymmetry in p p ¯ ? W + X ? µ ? + X events at s = 1.96 TeV
in Physical Review D
Abazov V
(2011)
Search for a Fourth Generation t ' Quark in p p ¯ Collisions at s = 1.96 TeV
in Physical Review Letters