Density correlators in a self-similar cascade

Multivariate density moments (correlators) of arbitrary order are obtained for the multiplicative self-similar cascade. This result is based on the calculation by Greiner, Eggers and Lipa (reference [1]) where the correlators of the logarithms of the particle densities have been obtained. The density correlators, more suitable for comparison with multiparticle data, appear to have even simpler form than those obtained in [1].Comment: 9 pages, 3 figures, uses epsfig.st

The Archconfraternity of the Rosary in the Dominican Churches of Kraków. Piety and Patronage of the Arts

Članek obravnava umetnostni milje nadbratovščine sv. rožnega venca v dominikanski cerkvi sv. Trojice v Krakovu. Dominikanci so goreče pospeševali rožnovensko pobožnost; ustanovili so številne bratovščine sv. rožnega venca, ki so bile običajno povezane z njihovimi cerkvami. Skoraj gotovo je dominikanski pridigarski red spodbudil ustanovitev takšne bratovščine v Krakovu že v 15. stoletju. Posredni dokaz za to je ohranjen v samostanskem arhivu v Krakovu v dokumentih, ki sta jih izdala papež Inocenc VIII. leta 1484 in general reda Avguštin Recuperati leta 1539 in se nanašajo na dominikansko rožnovensko bratovščino. Leta 1600 je bratovščino s sedežem v Krakovu, ki je takrat obstajala že ab immemorabilis tempore, Abraham Bzowski reformiral; ob tej priložnosti je izdal obsežno knjigo Rožni venec Device Marije, sedaj na novo reformiran v Krakovu pri Sv. Trojici (Kraków 1600 in 1606). Že takrat se družba omenja kot nadbratovščina. Dejstvo, da je nadbratovščina dobila eno najzgodnejših in najpomembnejših poljskih kopij Marije Snežne, čudodelne podobe v rimski baziliki S. Maria Maggiore, ki je veljala za pribežališče večnega mesta, je imelo velik pomen za njen nadaljnji razvoj in izjemni vpliv. Razprava govori o češčenju poljske ikone, o njenem okrasu in novem arhitekturnem prostoru, ki ga je dobila leta 1688.The essay deals with the artistic milieu of the Archconfraternity of the Rosary at the Dominican Holy Trinity Church in Kraków. Dominicans were zealous promoters of the rosary, and numerous Rosary brotherhoods were established, typically affiliated with Dominican churches. Therefore, it seems almost certain that in Kraków, as early as the 15th century, the Dominican Order of Preachers encouraged the formation of such a confraternity. Indirect evidence of this is preserved in the Convent’s Archive in Kraków, in documents concerning the Dominican Confraternities of the Rosary, issued by Pope Innocent VIII in 1484 and by the General of the Order, Augustine Recuperati, in 1539. In any case, in 1600, the Kraków-based confraternity—at that time already existing “ab immemorabilis tempore”— was reformed by Fr. Abraham Bzowski, who elaborated and published an extensive book on this occasion: Rosary of the Virgin Mary, now reformed anew in Kraków at the Holy Trinity (Kraków 1600 and 1606). Already at that time, the confraternity was referred to as an archconfraternity. The fact that the archconfraternity was given one of the earliest and most important copies in the former Polish Republic of Our Lady of the Snows, a miracle-working image in the Roman basilica of S. Maria Maggiore that was considered a palladium of the Eternal City, was of great importance to its development and extraordinary influence. The essay discusses the Polish icon’s veneration, decoration, and the new architectural space it received in 1688

Possible probe of the QCD odderon singularity through the quasidiffractive eta_c production in gamma-gamma collisions

The reactions gamma-gamma to eta_c eta_c and gamma gamma to eta_c + X are discussed within the three gluon exchange model. We give predictions for the differential cross-sections and discuss feasibility of measuring these processes at LEP2 and TESLA. The total cross-sections were estimated to be approximately equal to 40 fb and 120 fb for gamma-gamma to eta_c eta_c and gamma-gamma to eta_c + X respectively assuming exchange of elementary gluons that corresponds to the odderon with intercept equal to unity. These values can be enhanced by a factor equal to 1.9 and 2.1 for LEP2 and TESLA energies if the odderon intercept is equal to 1.07. The estimate of cross-sections sigma(e^+ e^- to e^+ e^- eta_c eta_c) and sigma (e^+ e^- to e^+ e^- eta_c + X) for untagged e^+ and e^- is also given.Comment: 11 pages, Latex, epsf, 5 eps figures include

Large Self-affine fractality in \p^+p and K+^+p collisions at 250 GeV/cc

Taking into account the anisotropy of phase space in multiparticle production, a self-affine analysis of factorial moments was carried out on the NA22 data for \p^+\Pp and \PK^+\Pp collisions at 250 GeV/$c$. Within the transverse plane, the Hurst exponents measuring the anisotropy are consistent with unit value (i.e. no anisotropy). They are, however, only half that value when the longitudinal direction is compared to the transverse ones. Fractality, indeed, turns out to be self-affine rather than self-similar in multiparticle production. In three-dimensional phase space, power-law scaling is observed to be better realized in self-affine than in self-similar analysis.Comment: 10 pages and 4 figure