The CDF Data Handling System

The Collider Detector at Fermilab (CDF) records proton-antiproton collisions at center of mass energy of 2.0 TeV at the Tevatron collider. A new collider run, Run II, of the Tevatron started in April 2001. Increased luminosity will result in about 1~PB of data recorded on tapes in the next two years. Currently the CDF experiment has about 260 TB of data stored on tapes. This amount includes raw and reconstructed data and their derivatives. The data storage and retrieval are managed by the CDF Data Handling (DH) system. This system has been designed to accommodate the increased demands of the Run II environment and has proven robust and reliable in providing reliable flow of data from the detector to the end user. This paper gives an overview of the CDF Run II Data Handling system which has evolved significantly over the course of this year. An outline of the future direction of the system is given.Comment: Talk from the 2003 Computing in High Energy and Nuclear Physics (CHEP03), La Jolla, Ca, USA, March 2003, 7 pages, LaTeX, 4 EPS figures, PSN THKT00

Pentaquark Searches at CDF

Recently there has been revival of interest in exotic baryon spectroscopy triggered by experimental evidence for pentaquarks containing u,d,s and c-quarks. We report results of the searches for pentaquark states in decays to p K0S, Xi- pi+,- and D*- p performed at CDF detector using 220 pb-1 sample of pp= interactions at sqrt(s) of 1.96 TeV. No evidence for narrow resonances were found in either mode.Comment: Presented at 6th International Conference on Hyperons, Charm and Beauty Hadrons (BEACH 2004), Chicago, Illinois, 27 Jun - 3 Jul 200

One-loop surface tensions of (supersymmetric) kink domain walls from dimensional regularization

We consider domain walls obtained by embedding the 1+1-dimensional $\phi^4$-kink in higher dimensions. We show that a suitably adapted dimensional regularization method avoids the intricacies found in other regularization schemes in both supersymmetric and non-supersymmetric theories. This method allows us to calculate the one-loop quantum mass of kinks and surface tensions of kink domain walls in a very simple manner, yielding a compact d-dimensional formula which reproduces many of the previous results in the literature. Among the new results is the nontrivial one-loop correction to the surface tension of a 2+1 dimensional N=1 supersymmetric kink domain wall with chiral domain-wall fermions.Comment: 23 pages, LATeX; v2: 25 pages, 2 references added, extended discussion of renormalization schemes which dispels apparent contradiction with previous result

The role of the "third place" in the practices of youth leisure: house party (home party) as a social event

The problem of youth leisure is a frequent object of study in modern sociology. However, Russian scientists are increasingly paying attention to club culture and various youth subcultures, often overlooking the social phenomenon of house parties. The article analyses the results of individual studies of house parties in the USA, Holland, Denmark, the UK (skins party), the former USSR (“kvartirnik”/home gig) and modern Russia (“vpiska” (inclusion)/ shubz and its various formats). For the methodological basis of the study two approaches are used. The approach of E. Hoffmann, that allows us to study a house party as a social event of an entertaining nature, and the theory by R. Oldenburg of the “third place”, that a house becomes during a party. The article touches upon the historical aspect of house parties, their golden age dating back to the 19th century in the UK. In the context of the sacredness of the event and institutional freedom, a house party is compared to a “crash pad” commune of the hippie subculture. The researchers note the possibility of forming a hangout (“tusovka”) as a series of house parties opp osing disciplinary culture and social hierarchy. Special attention is paid to the issue of alcohol consumption as a ritual of collective intoxication during house parties and drinking games. The concept of a home quasi-party is introduced, which main purpose is not entertainment, but education, political agitation or direct sales. The main idea of the article is to reflect not only the negative, but also the positive socio-cultural functions of a house party, that is considered by some researchers as an exclusively deviant and/or criminogenic form of leisure of the modern youth.</p