313 research outputs found
Застосування елементів фреймо-лакунарного аналізу при перекладі англійських жартів з лінгвістичною основою українською мовою
(uk) У статті розглядаються шляхи створення комічної недоладності та лакунарності в англомoвних лінгвістичних жартах та робиться спроба залучення елементів фреймо-лакунарного підходу до перекладу англійських мовно-орієнтованих анекдотів українською мовою.(en) The paper considers the comic incongruity in English linguistically based jokes and discusses the ways the frame and lacuna analysis can be applied to the translation of English anecdotes into Ukrainian
KinFit -- A Kinematic Fitting Package for Hadron Physics Experiments
A kinematic fitting package, KinFit, based on the Lagrange multiplier
technique has been implemented for generic hadron physics experiments. It is
particularly suitable for experiments where the interaction point is unknown,
such as experiments with extended target volumes. The KinFit package includes
vertex finding tools and fitting with kinematic constraints, such as mass
hypothesis and four-momentum conservation, as well as combinations of these
constraints. The new package is distributed as an open source software via
GitHub.
This paper presents a comprehensive description of the KinFit package and its
features, as well as a benchmark study using Monte Carlo simulations of the
reaction. The results show
that KinFit improves the parameter resolution and provides an excellent basis
for event selection
Making physics outreach more gender inclusive
“Diversity in the Cultures of Physics” was an Erasmus+ funded Strategic Partnership launching several key actions aimed at improving the gender balance in physics and its subfields. The Strategic Partnership consisted of six universities in four countries: Freie Universität Berlin in Germany, Universitat Autònoma de Barcelona and Universitat de Barcelona in Spain, the University of Manchester and the University of Sheffield in the United Kingdom and Uppsala Universitet in Sweden.
This flyer provides recommendations and a checklist to make outreach activities in physics more gender inclusive. It is aimed at people already active in outreach activities for young people. The flyer indicates relevant examples of outreach projects, highlights diversity-relevant questions and topics for planning outreach activities and provides a checklist for how outreach events in physics can be made more gender inclusive
Hadron Spectroscopy with COMPASS at CERN
The aim of the COMPASS hadron programme is to study the light-quark hadron
spectrum, and in particular, to search for evidence of hybrids and glueballs.
COMPASS is a fixed-target experiment at the CERN SPS and features a two-stage
spectrometer with high momentum resolution, large acceptance, particle
identification and calorimetry. A short pilot run in 2004 resulted in the
observation of a spin-exotic state with consistent with the
debated . In addition, Coulomb production at low momentum transfer
data provide a test of Chiral Perturbation Theory. During 2008 and 2009, a
world leading data set was collected with hadron beam which is currently being
analysed. The large statistics allows for a thorough decomposition of the data
into partial waves. The COMPASS hadron data span over a broad range of channels
and shed light on several different aspects of QCD.Comment: 4 pages, 5 figure
The Spin Structure Function of the Proton and a Test of the Bjorken Sum Rule
New results for the double spin asymmetry and the proton
longitudinal spin structure function are presented. They were
obtained by the COMPASS collaboration using polarised 200 GeV muons scattered
off a longitudinally polarised NH target. The data were collected in 2011
and complement those recorded in 2007 at 160\,GeV, in particular at lower
values of . They improve the statistical precision of by
about a factor of two in the region . A next-to-leading order
QCD fit to the world data is performed. It leads to a new determination
of the quark spin contribution to the nucleon spin, ranging
from 0.26 to 0.36, and to a re-evaluation of the first moment of .
The uncertainty of is mostly due to the large uncertainty in
the present determinations of the gluon helicity distribution. A new evaluation
of the Bjorken sum rule based on the COMPASS results for the non-singlet
structure function yields as ratio of the axial and
vector coupling constants , which validates the sum rule to an accuracy of about
9\%.Comment: 19 pages, 8 figures and table
Collins and Sivers asymmetries in muonproduction of pions and kaons off transversely polarised protons
Measurements of the Collins and Sivers asymmetries for charged pions and charged and neutral kaons produced in semi-inclusive deep-inelastic scattering of high energy muons off transversely polarised protons are presented. The results were obtained using all the available COMPASS proton data, which were taken in the years 2007 and 2010. The Collins asymmetries exhibit in the valence region a non-zero signal for pions and there are hints of non-zero signal also for kaons. The Sivers asymmetries are found to be positive for positive pions and kaons and compatible with zero otherwise. © 2015
Meson production in pd collisions
Meson production in proton-deuteron collisions has been studied using the WASA detector facility at the CELSIUS storage ring in Uppsala. Data were obtained at two different beam energies, 1360 MeV and 1450 MeV, slightly above threshold for η and ω mesons. The differential cross sections of pd → 3He ω constitute the first measurements of this reaction covering the whole angular range. The ω angular distributions are isotropic at 1360 MeV but have strong forward and backward enhancements at 1450 MeV. Theoretical calculations using a two-step model fail to reproduce the shapes of the angular distributions and underestimate the total cross sections. The tensor polarisation of the ω meson has been derived from the measured angular distributions of the ω decay products. The π+ π- π0 and the π0 γ decay channels gave consistent results, showing that the ω meson is produced unpolarised at both energies. This is in contrast to a recent MOMO measurement which showed that the Φ meson is produced almost completely polarised in the pd → 3HeΦ reaction. Different production dynamics of ω and Φ mesons close to threshold raises the question whether the Okubo-Zweig-Iizuka (OZI) rule is applicable in low-energy nucleon-nucleon reactions. The angular distributions of the η meson produced in the pd → 3He η reaction are strongly enhanced for forward going η mesons at both energies. The σ(pd → 3He π+ π- π0 )/σ(pd → 3He π0 π0 π0 ) ratio has been measured and discussed in terms of isospin amplitudes. A rough estimate of the pd → 3He π0 π0 π0 π0 cross sections has also been obtained and the pd → 3He η π0 reaction has been studied for the first time near threshold
Hyperon structure at BESIII
By dedicated off-resonance energy scans, the BESIII experiment pro-vides unique information on the time-like structure of strange and single -charm hyperons. In particular, exploiting polarised and entangled hyperon- antihyperon pairs, has enabled the first complete measurement of the time -like structure of a baryon at a single energy. From this, we gain new insights into the strong interaction forming visible matter
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