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
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
Aad G
(2014)
Search for supersymmetry in events with four or more leptons in s = 8 TeV p p collisions with the ATLAS detector
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
(2013)
Measurement of the differential cross section of photon plus jet production in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2012)
Search for a narrow t t ¯ resonance in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Abazov V
(2011)
Direct measurement of the mass difference between top and antitop quarks
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
(2014)
Search for the X ( 4140 ) state in B + ? J / ? ? K + decays with the D0 detector
in Physical Review D
Aad G
(2013)
Search for contact interactions and large extra dimensions in dilepton events from p p collisions at s = 7 TeV with the ATLAS detector
in Physical Review D
Aad G
(2013)
Measurements of W ? and Z ? production in p p collisions at s = 7 TeV with the ATLAS detector at the LHC
in Physical Review D
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
(2009)
Search for charged Higgs bosons in decays of top quarks
in Physical Review D
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
(2012)
Observation of a narrow mass state decaying into ? ( 1 S ) + ? in p p ¯ collisions at s = 1.96 TeV
in Physical Review D
Aad G
(2014)
Flavor tagged time-dependent angular analysis of the B s 0 ? J / ? ? decay and extraction of ? G s and the weak phase ? s in ATLAS
in Physical Review D
Aad G
(2014)
Search for high-mass dilepton resonances in p p collisions at s = 8 TeV with the ATLAS detector
in Physical Review D
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
(2013)
Search for the rare decay B s 0 ? µ + µ -
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
(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
(2011)
Measurement of the ratio of inclusive cross sections s ( p p ¯ ? Z + b - quark jet ) / s ( p p ¯ ? Z + jet ) at s = 1.96 TeV
in Physical Review D
Abazov V
(2011)
Precise measurement of the top-quark mass from lepton + jets events at D0
in Physical Review D
Aaltonen T
(2012)
Combination of the top-quark mass measurements from the Tevatron collider
in Physical Review D
Abe K
(2014)
Measurement of the intrinsic electron neutrino component in the T2K neutrino beam with the ND280 detector
in Physical Review D
Abazov V
(2011)
Measurement of the production fraction times branching fraction f ( b ? ? b ) · B ( ? b ? J / ? ? )
in Physical Review D
Aad G
(2014)
Study of heavy-flavor quarks produced in association with top-quark pairs at s = 7 TeV using the ATLAS detector
in Physical Review D
Abazov V
(2012)
Measurement of the inclusive jet cross section in p p ¯ collisions at s = 1.96 TeV
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
Abe K
(2013)
T2K neutrino flux prediction
in Physical Review D
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
(2013)
Combined search for the Higgs boson with the D0 experiment
in Physical Review D
Aad G
(2013)
Measurement of upsilon production in 7 TeV p p collisions at ATLAS
in Physical Review D
Abe K
(2014)
Measurement of the inclusive ? µ charged current cross section on iron and hydrocarbon in the T2K on-axis neutrino beam
in Physical Review D
Abazov V
(2009)
Publisher's Note: Relative rates of B meson decays into ? ( 2 S ) and J / ? mesons [Phys. Rev. D 79 , 111102 (2009)]
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
(2014)
Measurements of normalized differential cross sections for t t ¯ production in p p collisions at ( s ) = 7 TeV using the ATLAS detector
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
(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
(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
Aad G
(2013)
Search for microscopic black holes in a like-sign dimuon final state using large track multiplicity with the ATLAS detector
in Physical Review D
Aad G
(2014)
Search for the lepton flavor violating decay Z ? e µ in p p collisions at s = 8 TeV with the ATLAS detector
in Physical Review D
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
(2013)
Search for Higgs boson production in trilepton and like-charge electron-muon final states with the D0 detector
in Physical Review D
Aaltonen T
(2013)
Combination of CDF and D0 W -Boson mass measurements
in Physical Review D
Related Projects
| Project Reference | Relationship | Related To | Start | End | Award Value |
|---|---|---|---|---|---|
| ST/H00095X/1 | 30/09/2009 | 30/03/2011 | £808,725 | ||
| ST/H00095X/2 | Transfer | ST/H00095X/1 | 30/09/2010 | 29/09/2012 | £5,501,044 |
| 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/ |