Prospects for Early Top Pair Cross-section Measurements at ATLAS

Top-quark pairs are expected to be produced copiously at the LHC, even at the lower beam energies and luminosities expected in the first year of running. Establishing the top-pair signal and measuring the production cross-section will be important benchmarks for ATLAS, which will also help understand the detector performance for events with high-pT leptons, high jet multiplicity, missing transverse energy and b-jets. The prospects for early measurements with top-quark pairs at a centre of mass energy of 10 TeV will be shown, with a particular emphasis on the understanding of backgrounds through data-driven methods

Innovation in environment-oriented networks

PurposeThe purpose of this paper is to outline and analyze the influence of environment‐oriented cooperation on innovations as the important factor for sustainable development. The research question is how could environment‐oriented cooperation contribute to innovations in enterprises?Design/methodology/approachFor empirical research, a mix of methods is to be selected. At first, the results are obtained qualitatively and validated quantitatively afterwards. Two cooperation cases are selected: industry‐related and intersectoral cooperation.FindingsThe paper explains the contribution of environment‐oriented cooperation to realize innovations by identification of the innovation‐relevant cooperation factors such as: heterogeneous constellation of the cooperation partners; specialist know‐how exchange; coordination; and importance of industry orientation. These factors are also necessary for the implementation of sustainability‐oriented innovation practices in a wider (economical, ecological and social) understanding.Practical implicationsThe paper shows that an environment‐oriented cooperation with different actors – which is coordinated by experts and concentrated on industry specific as well as oriented on the interests of all actors – can definitely help to realize potentials of innovation.Originality/valueConcerning the increasing role of cooperation for the creation and implementation of environmental innovations, substantial awareness gaps are still observed. The paper has tried to identify and analyze cooperation characteristics which influence the implementation of environmental innovations and therefore the sustainable development.</jats:sec

Environmental costs in Poland: a theoretical and statistical approach

Koszty środowiskowe są ogólnym pojęciem dla różnych kosztów związanych z działaniami na rzecz ochrony środowiska i z oddziaływaniem na środowisko. W praktyce są one ujmowane w rachunku kosztów funkcjonowania przedsiębiorstw w sposób cząstkowy bądź są zawarte w pozycjach zagregowanych. Dotychczas nie opracowano jeszcze ujednoliconych standardów w zakresie: zasad pomiaru, dokumentacji, ewidencji i rozliczania wydatków środowiskowych w przedsiębiorstwie. Obowiązki sprawozdawcze przedsiębiorców, obejmujące ochronę środowiska, regulują liczne akty prawne. W odniesieniu do kosztów środowiskowych brak jest kompleksowych badań określających ich wysokość i strukturę w całej gospodarce narodowej. Główny Urząd Statystyczny prowadzi w tym zakresie jedynie okresowe i wycinkowe badania, bazując na danych dostarczanych przez nieznaczną liczbę przedsiębiorstw. Niebawem regulacje prawne Unii Europejskiej nałożą na państwa członkowskie obowiązek sporządzania obszernych sprawozdań dotyczących wielkości ponoszonych kosztów środowiskowych, zgodnie z metodyką Eurostatu. Aktualnie trwają prace nad uchwaleniem aktu prawnego, przygotowanego już w tym zakresie. Celem artykułu jest: rozwinięcie zagadnienia kosztów środowiskowych, ponoszonych przez przedsiębiorstwa i inne jednostki, analiza dotychczasowych badań określających ich wysokość w gospodarce narodowej, jak również próba stworzenia metodologicznych podstaw szerokiej sprawozdawczości dotyczącej kosztów środowiskowych w związku z nowymi wymogami nałożonymi przez Unię Europejską.Environmental costs are a general term for the various costs associated with actions to protect the environment and with impacts on the environment. In practice, they are recognized in the cost accounts of companies in a partial manner, or are included in the aggregated positions. So far no uniform standards have been established for the principles of measurement, documentation, registration and accounting for environmental costs in the enterprises. The reporting obligations of entrepreneurs in the field of environmental protection are governed by numerous legal provisions. With regard to environmental costs, there is no comprehensive test to determine their amount and structure in the national economy. The Central Statistical Office conducts only periodic and fragmentary studies in this field, based on data provided by a small numberof companies. EU regulations will soon impose on the Member States the obligation to draw up extended reports on the size of environmental costs, according to the Eurostat methodology. Currently, a relevant legal act is being drafted. The aims of this article are todiscuss the current state in the field of environmental costs incurred by enterprises and other entities, to analyse the existing research into their amount in the national economy, as well as to make an attempt at the creation of a methodological basis for broad reporting of environmental costs in line with the new requirements imposed by the EU.Piotr P. Małecki - [email protected] Urbaniec - [email protected] hab. Piotr P. Małecki – Wydział Finansów, Uniwersytet Ekonomiczny w Krakowiedr Maria Urbaniec – Wydział Ekonomii i Stosunków Międzynarodowych, Uniwersytet Ekonomiczny w Krakowi

Nowela (37) Justyniana z 535 r. i jej antyjudaistyczny charakter

The considerations contained in this article concern legal regulations directed against the followers of Judaism, included in novella 37, issued by Emperor Justinian in 535 and in force only in the prefecture praetorio of Africa. Controversies in the historical discourse are caused by both the reasons for the introduction of a restrictive law, which has no equivalent in other parts of the Roman empire, and its real reception. The conducted analysis questioned the adequacy of using the passage from De aedeficiis of Procopius of Caesarea as an example of the practical application of the this law and, based on the epistolography of Pope Gregory, determined the hypothetical terminus ante quem of its validity.Przedstawione w artykule rozważania dotyczą regulacji prawnych wymierzonych w wyznawców judaizmu, zawartych w noweli 37, wydanej przez cesarza Justyniana w 535 r. i obowiązujących jedynie na terenie prefektury praetorio Afryki. Kontrowersje w dyskursie naukowym wywołują zarówno przyczyny wprowadzenia restrykcyjnego prawa, nie znajdującego odpowiednika w innych częściach imperium rzymskiego, jak i jego rzeczywista recepcja. Przeprowadzona analiza zakwestionowała zasadność wykorzystywania passusu De aedeficiis Prokopiusza z Cezarei jako przykładu praktycznego stosowania omawianego prawa oraz na podstawie epistolografii papieża Grzegorza wyznaczyła hipotetyczny terminus ante quem jego obowiązywania

Search for squarks and gluinos with the ATLAS detector in final states with jets and missing transverse momentum using √s=8 TeV proton-proton collision data

A search for squarks and gluinos in final states containing high-p T jets, missing transverse momentum and no electrons or muons is presented. The data were recorded in 2012 by the ATLAS experiment in s√=8 TeV proton-proton collisions at the Large Hadron Collider, with a total integrated luminosity of 20.3 fb−1. Results are interpreted in a variety of simplified and specific supersymmetry-breaking models assuming that R-parity is conserved and that the lightest neutralino is the lightest supersymmetric particle. An exclusion limit at the 95% confidence level on the mass of the gluino is set at 1330 GeV for a simplified model incorporating only a gluino and the lightest neutralino. For a simplified model involving the strong production of first- and second-generation squarks, squark masses below 850 GeV (440 GeV) are excluded for a massless lightest neutralino, assuming mass degenerate (single light-flavour) squarks. In mSUGRA/CMSSM models with tan β = 30, A 0 = −2m 0 and μ > 0, squarks and gluinos of equal mass are excluded for masses below 1700 GeV. Additional limits are set for non-universal Higgs mass models with gaugino mediation and for simplified models involving the pair production of gluinos, each decaying to a top squark and a top quark, with the top squark decaying to a charm quark and a neutralino. These limits extend the region of supersymmetric parameter space excluded by previous searches with the ATLAS detector

Measurement of the inclusive and dijet cross-sections of b-jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

The inclusive and dijet production cross-sections have been measured for jets containing b-hadrons (b-jets) in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV, using the ATLAS detector at the LHC. The measurements use data corresponding to an integrated luminosity of 34 pb^-1. The b-jets are identified using either a lifetime-based method, where secondary decay vertices of b-hadrons in jets are reconstructed using information from the tracking detectors, or a muon-based method where the presence of a muon is used to identify semileptonic decays of b-hadrons inside jets. The inclusive b-jet cross-section is measured as a function of transverse momentum in the range 20 < pT < 400 GeV and rapidity in the range |y| < 2.1. The bbbar-dijet cross-section is measured as a function of the dijet invariant mass in the range 110 < m_jj < 760 GeV, the azimuthal angle difference between the two jets and the angular variable chi in two dijet mass regions. The results are compared with next-to-leading-order QCD predictions. Good agreement is observed between the measured cross-sections and the predictions obtained using POWHEG + Pythia. MC@NLO + Herwig shows good agreement with the measured bbbar-dijet cross-section. However, it does not reproduce the measured inclusive cross-section well, particularly for central b-jets with large transverse momenta.Comment: 10 pages plus author list (21 pages total), 8 figures, 1 table, final version published in European Physical Journal