Search results

A measurement of the production cross-section for top quark pairs (t (t) over bar) in pp collisions at root s = 7 TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in two different topologies: single lepton (electron e or muon mu) with large missing transverse energy and at least four jets, and dilepton (ee, mu mu or e mu) with large mis

A measurement of the differential cross-section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy root s = 7 TeV is presented. The measurement covers the pseudorapidity ranges vertical bar eta vertical bar < 1.37 and 1.52 <= vertical bar eta vertical bar < 2.37 in the transverse energy range 45 <= E(T) < 400 GeV. The results are based on an integra

A search for neutral Higgs bosons decaying to pairs of tau leptons with the ATLAS detector at the LHC is presented. The analysis is based on proton-proton collisions at a center-of-mass energy of 7 TeV, recorded in 2010 and corresponding to an integrated luminosity of 36 pb(-1). After signal selection, 276 events are observed in this data sample. The observed number of events is consistent with th

Using the ATLAS detector, a centrality-dependent suppression has been observed in the yield of J/psi mesons produced in the collisions of lead ions at the Large Hadron Collider. In a sample of minimum-bias lead-lead collisions at a nucleon-nucleon centre of mass energy root s(NN) = 2.76 TeV, corresponding to an integrated luminosity of about 6.7 mu b(-1), J/psi mesons are reconstructed via their d

This paper presents a search for the t-channel exchange of an R-parity violating scalar top quark ((t) over tilde) in the e(+/-)mu(-/+) continuum using 2.1 fb(-1) of data collected by the ATLAS detector in root s = 7 TeV pp collisions at the Large Hadron Collider. Data are found to be consistent with the expectation from the Standard Model backgrounds. Limits on R-parity-violating couplings at 95

Measurements are presented from proton-proton collisions at centre-of-mass energies of root s = 0.9, 2.36 and 7 TeV recorded with the ATLAS detector at the LHC. Events were collected using a single-arm minimum-bias trigger. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity and the relationship between the mean transverse momentum and charged-particle multi

The measurement of missing transverse momentum in the ATLAS detector, described in this paper, makes use of the full event reconstruction and a calibration based on reconstructed physics objects. The performance of the missing transverse momentum reconstruction is evaluated using data collected in pp collisions at a centre-of-mass energy of 7 TeV in 2010. Minimum bias events and events with jets o

This Letter reports on a first measurement of the inclusive W + jets cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC, with the ATLAS detector. Cross sections, in both the electron and muon decay modes of the W-boson, are presented as a function of jet multiplicity and of the transverse momentum of the leading and next-to-leading jets in the event. Measureme

We report a search for first generation scalar leptoquarks using 1.03 fb(-1) of proton-proton collisions data produced by the Large Hadron Collider at root s = 7 TeV and recorded by the ATLAS experiment. Leptoquarks are sought via their decay into an electron or neutrino and a quark, producing events with two oppositely charged electrons and at least two jets, or events with an electron, missing t

Detailed measurements of the electron performance of the ATLAS detector at the LHC are reported, using decays of the Z, W and J/psi particles. Data collected in 2010 at root s = 7 TeV are used, corresponding to an integrated luminosity of almost 40 pb(-1). The inter-alignment of the inner detector and the electromagnetic calorimeter, the determination of the electron energy scale and resolution, a

This Letter presents measurements of the differential cross-sections for inclusive electron and muon production in proton-proton collisions at a centre-of-mass energy of root s = 7 TeV, using data collected by the ATLAS detector at the LHC. The muon cross-section is measured as a function of p(T) in the range 4 < p(T) < 100 GeV and within pseudorapidity vertical bar eta vertical bar < 2.5. In addi

A measurement of the top-antitop production charge asymmetry A(C) is presented using data corresponding to an integrated luminosity of 1.04 fb(-1) of pp collisions at root s = 7 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 b-qua

A search for new phenomena in events featuring a high energy jet and large missing transverse momentum in proton-proton collisions at root s = 7 TeV is presented using a dataset corresponding to an integrated luminosity of 33 pb(-1) recorded with the ATLAS detector at the Large Hadron Collider. The number of observed events is consistent with the Standard Model prediction. This result is interpret

A measurement of the production cross section of top quark pairs (t (t) over bar) in proton-proton collisions at a center-of-mass energy of 7 TeV recorded with the ATLAS detector at the Large Hadron Collider is reported. Candidate events are selected in the dilepton topology with large missing transverse energy and at least two jets. Using a data sample corresponding to an integrated luminosity of

Microsoft Word - 303466_1_A5_Marit J Tre uppsatser om variation och förändring Marit Julien (red.) Nordlund 34 Småskrifter från Nordiska språk vid Lunds universitet Lund 2020 Nordiska språk, Språk- och litteraturcentrum Box 201 221 00 Lund ISSN 0281-5427 Nordlund 34 Småskrifter från Nordiska språk vid Lunds universitet M arit Julien (red.) Tre uppsatser om variation och förändring Tre uppsatser om

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konsthistoria och visuella studier Postadress Box 192, 221 00 Lund Besöksadress Helgonavägen 3, Hus B Telefon dir 046-222 83 15, växel 046-222 00 00 Telefax 046-222 44 10 E-post jesper.olsson@kansliht.lu.se Internet http://www.ht.lu.se Humanis t iska och teo log iska faku l te terna Ins t i tu t ionen för ku l turvetenskaper Konsth is tor ia och visuel la s tud ier Allmän studieplan för utbildning

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Final Papers of the 2022 National Symposium on Ten Years of the Declaration of Rights in the Zimbabwean Constitution i The designations employed and the presentation of the material herein do not imply the expression of any opinion whatsoever on the part of the Raoul Wallenberg Institute of Human Rights and Humanitarian Law (RWI) or any of its partners or donors concerning the legal status of any

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Licentiate Dissertation Structural Mechanics KARIN FORSMAN Report TV SM -3081 K A RIN FO RSM A N FR A C TU R E B EH A V IO U R O F A C ETY LA TED W O O D - M aterial ch aracterisatio n an d d o w el-typ e co n n ectio n s FRACTURE BEHAVIOUR OF ACETYLATED WOOD Material characterisation and dowel-type connections DEPARTMENT OF CONSTRUCTION SCIENCES DIVISION OF STRUCTURAL MECHANICS ISRN LUTVDG/TVSM--

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1 LÄRANDE I LTH Varför finns det så många kvinnor på LTH? Det är en fråga som man inte hör ställas så ofta, men i den första artikeln i detta nummer av Lärande i LTH diskuteras detta med bakgrund av den könsfördelning som råder inom gruppen administratörer. Förekommer det att studenter oavsiktligt undgår att bidra med en egen ar- betsinsats i samband med grupparbeten? Den frågan belyses genom en f

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1 LÄRANDE I LTH LTH:s pedagogiska inspirationskonferens samlar deltagare från olika lärosäten i Sverige och även från andra nordiska länder, som vill ägna en intensiv dag åt att ta del av och sprida kunskap och erfarenheter kring högskolepedagogik. I detta nummer av Lärande i LTH finns tre artiklar som bygger på konferensbidrag som presenterades vid den åttonde inspirationskonferensen. Den första

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