861 research outputs found
Neutron-antineutron Oscillations in the Trapping Box
We have reexamined the problem of oscillations for ultra-cold
neutrons (UCN) confined within a trap. We have shown that the growth of the
component with time is to a decent accuracy given by where is the mixing parameter,
sec in the neutron propagation time between subsequent collisions
with the trap walls. Possible corrections to this law and open questions are
discussed.Comment: 11 pages, LaTeX2
The Semantic and Etymological Peculiarities of the Verbs of Blame
The article deals with the semantic analysis of the verbs of blame (brawl, castigate, condemn, curse, damn, lecture, rate, rebuke, reprehend, reprimand, reproach, reprobate, reprove, row, strafe, swear, trounce) in the perspective of semantics, as well as etymology. In accordance with the dominant cross-disciplinary approach to the linguistic research, the semantics of the verbs under study is analyzed in correlation with the relevant extra-linguistic data. It reveals the necessity of using some data of cognitive linguistics together with etymological methods of semantic analysis. The complex of cognitive and etymological methods helps to determine the functioning of the verbs in different kinds of discourse, and to find the closest equivalent in the Russian language
CASTOR: Centauro and Strange Object Research in nucleus-nucleus collisions at LHC
We describe the CASTOR detector designed to probe the very forward,
baryon-rich rapidity region in nucleus-nucleus collisions at the LHC. We
present a phenomenological model describing the formation of a QGP fireball in
a high baryochemical potential environment, and its subsequent decay into
baryons and strangelets. The model explains Centauros and the long-penetrating
component and makes predictions for the LHC.
Simulations of Centauro-type events were done. To study the response of the
apparatus to new effects different exotic species (DCC, Centauros, strangelets
etc.) were passed through the deep calorimeter. The energy deposition pattern
in the calorimeter appears to be a new clear signature of the QGP.Comment: Talk given by E. Gladysz-Dziadus for the CASTOR group, Intern.
Workshop on Nuclear Theory, 10-15 June, 2002, Bulgaria, Rila Mountains, 15
pages, 14 figure
e^+e^- Pair Production from A Reactions
We present a calculation of e^+e^- production in reactions at MAMI
and TJNAF energies within a semi-classical BUU transport model. Dilepton
invariant mass spectra for C, Ca and Pb are calculated
at 0.8, 1.5 and 2.2 GeV. We focus on observable effects of medium modifications
of the and mesons. The in-medium widths of these mesons are
taken into account in a dynamical, consistent way. We discuss the transport
theoretical treatment of broad resonances.Comment: 42 pages including 16 figure
Near-threshold production of omega mesons in the pn -> d omega reaction
The first measurement of the p n -> d omega total cross section has been
achieved at mean excess energies of Q = 28 and 57 MeV by using a deuterium
cluster-jet target. The momentum of the fast deuteron was measured in the ANKE
spectrometer at COSY-Juelich and that of the slow "spectator" proton p(sp) from
the p d -> p(sp) d omega reaction in a silicon telescope placed close to the
target. The cross sections lie above those measured for p p -> p p omega but
seem to be below theoretical predictions.Comment: 7 pages, 8 figures; second approach to describe the background has
been added; results changed insignificantly, EPJ in pres
Формування спеціальної працездатності майбутніх технологів харчової промисловості в процесі занять з фізичного виховання
Physical education in the higher education system should be based on new teaching technologies, which will ensure the physical and psychophysiological readiness of students to fulfill their professional responsibilities. In the current conditions of scientific and technological progress, profiling physical education of students in higher education institutions of Ukraine becomes important. Preserving and promoting the health of the student youth, forming in it the readiness for professional activity, national – patriotic and cultural – spiritual education, the need for physical perfection and a healthy lifestyle is one of the tasks of physical education. At the same time, noting the scientific and practical interest in the problem of physical training of students, it can be noted that this trend in the system of physical education requires further study and improvement. Therefore, finding ways to improve the effectiveness of physical education with students in higher education institutions in Ukraine is one of the priority areas of scientific research in the field of physical education.Фізичне виховання в системі вищої освіти повинно спиратися на нові технології викладання, що дозволить забезпечити фізичну та психофізіологічну готовність студентів до виконання своїх професійних обов’язків. У сучасних умовах розвитку науково-технічного прогресу важливого значення набуває профілююча фізична підготовка студентів у закладах вищої освіти України. Збереження та зміцнення здоров’я студентської молоді, формування в неї готовності до професійної діяльності, національно-патріотичної та культурно-духовної освіти, потреби у фізичному вдосконаленні та здоровому способі життя є одним із завдань фізичного виховання. Разом з тим, враховуючи науковий і практичний інтерес до проблеми фізичної підготовки студентів, зазначимо, що цей напрямок в системі фізичного виховання вимагає подальшого вивчення та вдосконалення. Тому пошук шляхів підвищення ефективності занять фізичною культурою зі студентами у закладах вищої освіти України є одним із приорітетних напрямків наукових досліджень в галузі фізичної культури
J/psi azimuthal anisotropy relative to the reaction plane in Pb-Pb collisions at 158 GeV per nucleon
The J/ azimuthal distribution relative to the reaction plane has been
measured by the NA50 experiment in Pb-Pb collisions at 158 GeV/nucleon. Various
physical mechanisms related to charmonium dissociation in the medium created in
the heavy ion collision are expected to introduce an anisotropy in the
azimuthal distribution of the observed J/ mesons at SPS energies. Hence,
the measurement of J/ elliptic anisotropy, quantified by the Fourier
coefficient v of the J/ azimuthal distribution relative to the
reaction plane, is an important tool to constrain theoretical models aimed at
explaining the anomalous J/ suppression observed in Pb-Pb collisions. We
present the measured J/ yields in different bins of azimuthal angle
relative to the reaction plane, as well as the resulting values of the Fourier
coefficient v as a function of the collision centrality and of the
J/ transverse momentum. The reaction plane has been estimated from the
azimuthal distribution of the neutral transverse energy detected in an
electromagnetic calorimeter. The analysis has been performed on a data sample
of about 100 000 events, distributed in five centrality or p
sub-samples. The extracted v values are significantly larger than zero
for non-central collisions and are seen to increase with p.Comment: proceedings of HP08 conference corrected a typo in one equatio
The semantic and etymological peculiarities of the verbs of blame
The article deals with the semantic analysis of the verbs of blame (brawl, castigate, condemn, curse, damn, lecture, rate, rebuke, reprehend, reprimand, reproach, reprobate, reprove, row, strafe, swear, trounce) in the perspective of semantics, as well as etymology. In accordance with the dominant cross-disciplinary approach to the linguistic research, the semantics of the verbs under study is analyzed in correlation with the relevant extra-linguistic data. It reveals the necessity of using some data of cognitive linguistics together with etymological methods of semantic analysi
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