225 research outputs found
Search for , and Decays
No full textWe report a search for the decays and . We also measure other charmless decay modes with and final states. The results are obtained from a data sample containing pairs collected with the Belle detector at the KEKB asymmetric-energy collider. We set upper limits on the branching fractions for B^0\to K^{*0} \kstarbar and of and , respectively, at the 90% confidence level
First observation of and search for exotic baryons in systems
No full textThe process γγ→pp¯K+K- and its intermediate processes are measured for the first time using a 980 fb-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The production of pp¯K+K- and a Λ(1520)0 (Λ¯(1520)0) signal in the pK- (p¯K+) invariant mass spectrum are clearly observed. However, no evidence for an exotic baryon near 1540 MeV/c2, denoted as Θ(1540)0 (Θ¯(1540)0) or Θ(1540)++ (Θ(1540)--), is seen in the pK- (p¯K+) or pK+ (p¯K-) invariant mass spectra. Cross sections for γγ→pp¯K+K-, Λ(1520)0p¯K++c.c. and the products σ(γγ→Θ(1540)0p¯K++c.c.)B(Θ(1540)0→pK-) and σ(γγ→Θ(1540)++p¯K-+c.c.)B(Θ(1540)++→pK+) are measured. We also determine upper limits on the products of the χc0 and χc2 two-photon decay widths and their branching fractions to pp¯K+K- at the 90% credibility level
Search for Violation and Measurement of the Branching Fraction in the Decay
No full textWe report a study of the decay using 921~fb of data collected at or near the and resonances with the Belle detector at the KEKB asymmetric-energy collider. The measured time-integrated CP asymmetry is and the branching fraction is = (1.32 0.02 0.04 0.04) 10, where the first uncertainty is statistical, the second is systematic, and the third is due to the normalization mode () used in the analysis. These results are significantly more precise than previous measurements for this mode. The measurement is consistent with the Standard Model expectation
Assessment of the Vibration Influence on Humans in Buildings in the Standards of Different Countries
No full textAbstractGround-born vibration produced by different sources can be annoying to nearby building occupants. Analysing the influence of vibration on humans residing in buildings a similar trend is noticeable. After 2003 there have been changes in standards in this area in many countries. There are some trends to connect the regulations for passive and active perception of vibration in standards approach. Seemingly similar regulations specified in standards can be interpreted differently in various countries. This study presents an analysis of such interpretation in the following standards: Polish PN-88/B-02171, British BS 6472-1, Japanese AIJ-GEH-2004, Australian AS 2670.1–2001, American ANSI S3.29-1983, German DIN 4150-2, and ISO international standards ISO 2631-1 and ISO 2631-2. There were analysed in particular parameters for assessing the influence of vibration on humans, the range of considered frequencies, duration of vibration, signal processing and general approach to the problem
Search for B^{0}→K^{*0}K[over ¯]^{*0}, B^{0}→K^{*0}K^{*0} and B^{0}→K^{+}π^{-}K^{∓}π^{±} decays
No full textWe report a search for the decays B-0 -> K*(0)(K) over bar*(0) and B-0 -> K*K-0*(0) . We also measure other charmless decay modes with K+ pi K--(-)pi(+) and K+pi K--(+)pi(-) final states. The results are obtained from a data sample containing 657 x 10(6) B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric- energy e(+)e(-) collider. We set upper limits on the branching fractions for B-0 -> K*(0)(K) over bar*(0) and B-0 -> K*K-0*(0) of 0: 81 x 10(-6) and 0.20 x 10(-6), respectively, at the 90% confidence level.LPH
Measurement of and branching fractions
No full textWe report a measurement of the and meson decays to the and final states, respectively, using pairs collected at the resonance with the Belle detector at the KEKB asymmetric-energy collider. Using the , {K}^{*}\left(892{\right)}^{0}{K}^{-} and decay modes for the reconstruction, we measure the following branching fractions: and . We find the ratio of the branching fraction of to that of the analogous Cabibbo-favored decay to be , which is consistent with the naive factorization model. We also observe a deviation of the invariant-mass distribution from the three-body phase-space model for both studied decays
Proper Names in Polish Proverbs
No full textU članku se određuju značenjske sastavnice u definiranju poslovica te se klasificiraju poslovice s algoremom vlastitih imena prema korpusu iz poljsko-ruskog rječnika poslovica što ga je sastavio Ryszard Stypula.
Prema značenjskom kriteriju poslovice s algoremom vlastitog imena podijeljene su u tri grupe: 1) antroponimne poslovice (imena i prezimena); 2) etnonimne poslovice (nazivi naroda i rasa); 3) toponimne poslovice (nazivi gradova). Svaka poslovica analizirana je s obzirom na njeno opće značenje i uspoređivana s hrvatskim ekvivalentima.
U zaključku se pokazuje da se poslovice mogu promatrati kao etnolingvističke jedinice govora. Poslovice s algoremom vlastitih imena pokazuju u doslovnom značenju poljski kulturni krug koji se vidi u poljskim imenima ljudi, naroda i gradova, a u prenesenom značenju ta vlastita imena označuju omnipersonalnost koja je u obliku "svak, svaki čovjek" prisutnija u hrvatskim ekvivalentima.The paper deals with the elements of meaning in defining proverbs, as well as with the classifica¬tion of proverbs containing a proper name. The author uses the proverbs from the Polish-Russian Dictionary of Proverbs compiled by Ryszard Stypula.
The proverbs containing a proper name are classified according to the criterium of meaning into three groups: (1) anthroponymic proverbs (first and family names); (2) ethnonymic proverbs (names of nations and races) and (3) toponymic proverbs (names of places). Each proverb has been analysed in accordance with its general meaning and in comparison with its Croatian counterpart.
The concluding part of the paper shows that proverbs can be observed as ethnolinguistic units of speech. The proverbs containing a proper name show — in their denotative meaning — Polish cul¬tural environment which can be observed through the Polish names of people, nations and places, and —in their connotative meaning—these proper names show the omnipersonality which is also present in their Croatian counterparts in the form "everyone; everybody"
Study of charmless decays () at Belle
No full textInternational audienceWe report a search for charmless hadronic decays of charged mesons to the final states and . The results are based on a data sample that contains pairs, and was collected at the resonance with the Belle detector at the KEKB asymmetric-energy collider. For decays, the measured branching fraction and direct asymmetry are and [] %, respectively. In the absence of a statistically significant signal for , we set the 90 % confidence-level upper limit on its branching fraction at
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