A measurement of spin correlation in tt[over ¯] production is reported using data collected with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 2.1 fb(-1). Candidate events are selected in the dilepton topology with large missing transverse energy and at least two jets.
View Article and Find Full Text PDFThis Letter describes a model-independent search for the production of new resonant states in photon+jet events in 2.11 fb(-1) of proton-proton collisions at √s=7 TeV. We compare the photon+jet mass distribution to a background model derived from data and find consistency with the background-only hypothesis.
View Article and Find Full Text PDFThis Letter presents a search for tb resonances in 1.04 fb(-1) of LHC proton-proton collision data collected by the ATLAS detector at a center-of-mass energy of 7 TeV. Events with a lepton, missing transverse momentum, and two jets are selected and the invariant mass of the corresponding final state is reconstructed.
View Article and Find Full Text PDFAim: Increased car dependency among Australia's ageing population may result in increased social isolation and other health impacts associated with the cessation of driving. While public transport represents an alternative to car usage, patronage remains low among older cohorts. This study investigates the facilitators and barriers to public transport patronage and the nature of car dependence among older Australians.
View Article and Find Full Text PDFThis Letter presents a search for pair production of heavy down-type quarks decaying via b' → Wt in the lepton + jets channel, as b'b' → W- tW+ t → bbW+ W- W+ W- → l± νbbqqqqqq. In addition to requiring exactly one lepton, large missing transverse momentum, and at least six jets, the invariant mass of nearby jet pairs is used to identify high transverse momentum W bosons. In data corresponding to an integrated luminosity of 1.
View Article and Find Full Text PDFThe results of a search for pair production of the scalar partners of bottom quarks in 2.05 fb(-1) of pp collisions at sqrt[s]=7 TeV using the ATLAS experiment are reported. Scalar bottom quarks are searched for in events with large missing transverse momentum and two jets in the final state, where both jets are identified as originating from a bottom quark.
View Article and Find Full Text PDFThe χ(b)(nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider at sqrt[s] = 7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4 fb(-1), these states are reconstructed through their radiative decays to Υ(1S,2S) with Υ → μ+ μ-.
View Article and Find Full Text PDFA search for the standard model Higgs boson is performed in the diphoton decay channel. The data used correspond to an integrated luminosity of 4.9 fb(-1) collected with the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a center-of-mass energy of √s=7 TeV.
View Article and Find Full Text PDFA search for the Higgs boson has been performed in the H→WW(*)→ℓ(+)νℓ(-)ν[over ¯] channel (ℓ=e/μ) with an integrated luminosity of 2.05 fb(-1) of pp collisions at √s=7 TeV collected with the ATLAS detector at the Large Hadron Collider. No significant excess of events over the expected background is observed and limits on the Higgs boson production cross section are derived for a Higgs boson mass in the range 110 GeV
A search for new phenomena in tt events with large missing transverse momentum in proton-proton collisions at a center-of-mass energy of 7 TeV is presented. The measurement is based on 1.04 fb(-1) of data collected with the ATLAS detector at the LHC.
View Article and Find Full Text PDFA measurement of the ZZ production cross section in proton-proton collisions at sqrt[s] = 7 TeV using data corresponding to an integrated luminosity of 1.02 fb(-1) recorded by the ATLAS experiment at the LHC is presented. Twelve events containing two Z boson candidates decaying to electrons and/or muons are observed, with an expected background of 0.
View Article and Find Full Text PDFThis Letter reports on a search for narrow high-mass resonances decaying into dilepton final states. The data were recorded by the ATLAS experiment in pp collisions at √s=7 TeV at the Large Hadron Collider and correspond to a total integrated luminosity of 1.08 (1.
View Article and Find Full Text PDFEur Phys J C Part Fields
July 2012
Eur Phys J C Part Fields
July 2012
This letter reports on a search for hypothetical heavy neutrinos, , and right-handed gauge bosons, , in events with high transverse momentum objects which include two reconstructed leptons and at least one hadronic jet. The results were obtained from data corresponding to an integrated luminosity of 2.1 fb collected in proton-proton collisions at [Formula: see text] with the ATLAS detector at the CERN Large Hadron Collider.
View Article and Find Full Text PDFEur Phys J C Part Fields
June 2012
The top quark mass has been measured using the template method in the [Formula: see text] channel based on data recorded in 2011 with the ATLAS detector at the LHC. The data were taken at a proton-proton centre-of-mass energy of [Formula: see text] and correspond to an integrated luminosity of 1.04 fb.
View Article and Find Full Text PDFA measurement of the jet activity in [Formula: see text] events produced in proton-proton collisions at a centre-of-mass energy of 7 TeV is presented, using 2.05 fb of integrated luminosity collected by the ATLAS detector at the Large Hadron Collider. The [Formula: see text] events are selected in the dilepton decay channel with two identified -jets from the top quark decays.
View Article and Find Full Text PDFEur Phys J C Part Fields
June 2012
This paper presents a search for the -channel exchange of an -parity violating scalar top quark ([Formula: see text]) in the continuum using 2.1 fb of data collected by the ATLAS detector in [Formula: see text] collisions at the Large Hadron Collider. Data are found to be consistent with the expectation from the Standard Model backgrounds.
View Article and Find Full Text PDFEur Phys J C Part Fields
June 2012
A measurement of the top-antitop production charge asymmetry is presented using data corresponding to an integrated luminosity of 1.04 fb of collisions at [Formula: see text] TeV collected by the ATLAS detector at the LHC. Events are selected with a single lepton (electron or muon), missing transverse momentum and at least four jets of which at least one jet is identified as coming from a -quark.
View Article and Find Full Text PDFA search for a Higgs boson has been performed in the H→WW→ℓνjj channel in 1.04 fb(-1) of pp collision data at √s=7 TeV recorded with the ATLAS detector at the Large Hadron Collider. No significant excess of events is observed over the expected background and limits on the Higgs boson production cross section are derived for a Higgs boson mass in the range 240 GeV
A search for a heavy standard model Higgs boson decaying via H→ZZ→→ℓ(+)ℓ(-)νν, where ℓ=e, μ, is presented. It is based on proton-proton collision data at √s=7 TeV, collected by the ATLAS experiment at the LHC in the first half of 2011 and corresponding to an integrated luminosity of 1.04 fb(-1).
View Article and Find Full Text PDFIntroduction: This population-based study of women diagnosed with early-stage breast cancer aimed to (i) determine the current utilization pattern of multigated acquisition (MUGA) scans before adjuvant chemotherapy (AdjC) treatment, and (ii) examine the impact of MUGA scan results on AdjC decision making.
Methods: All women who underwent curative-intent surgery for stage I-III breast cancer between October 2005 and September 2006 in Nova Scotia, Canada, were identified through the provincial cancer registry. A retrospective chart review was performed to abstract all relevant clinical-pathologic variables, including baseline cardiac risk factors.
Environ Sci Technol
November 2011
Motivated by recent studies that documented changes in fullerene toxicity after chemical transformation, C(60) aggregates (nC(60)) were subject to UVC irradiation at monochromatic 254 nm and subsequently evaluated for antibacterial and bactericidal properties against Escherichia coli. The nC(60) treated with UVC irradiation, referred to herein as UVC-irradiated C(60), did not directly inhibit bacterial growth at concentrations up to 20 mg/L. In the presence of UVA and visible light, however, UVC-irradiated C(60) rapidly inactivated E.
View Article and Find Full Text PDFExpert Rev Anticancer Ther
October 2011
The Atlantic Canada Oncology Group (ACOG) Symposium is an annual meeting. For the first 8 years it was held in Cornerbrook (NL, Canada) and for the last 7 years it has been held in Prince Edward Island (Canada). The target audience are medical and radiation oncologists from across the Atlantic Canadian provinces, but surgical oncologists, gynecologists, nurses, pharmacists, researchers, residents and other healthcare providers who work in oncology also benefit from the content presented at this meeting.
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