Measurement of the ratio of inclusive cross sections sigma(p(p)over-bar -> Z plus b-quark jet)/sigma(p(p)over-bar -> Z plus jet) at root s=1.96 TeV

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

THRESHOLD EFFECTS ON HEAVY QUARK PRODUCTION IN GAMMA-GAMMA-INTERACTIONS

The exchange of gluons between heavy quarks produced in e+e- interactions results in an enhancement of their production near threshold. We study QCD threshold effects in gammagamma collisions. The results are relevant to heavy quark production by beamstrahlung and laser backscattering in future linear collider experiments. Detailed predictions for top-, bottom-, and charm-quark production are presented.

BROKEN SU(8) AND HADRONIC MASS RELATIONS IN HEAVY-QUARK EFFECTIVE THEORY

Mass relations for hadrons containing a single heavy quark (charm or beauty) are studied from the viewpoint of a quark model with broken SU(8) symmetry, developed by Hendry and Lichtenberg some time ago, in comparison to that of the heavy quark effective theory. The interplay of the two approaches is explored and spectroscopic consequences derived.

Precision measurements of the ∧c + and D0 lifetimes

A measurement technique of charm baryons lifetimes from hadro-production data was presented. The measurement verified the lifetime analysis procedure in a sample with higher statistical precision. Other effects studied include mass reflections; effects of the presence of a second charm particle; and mismeasurement of charm decays. Monte carlo simulations were used for the detailed study of systematic effects using the charm data.

Charmonium and D mesons in hadronic matter

We discuss two aspects of charmonium in medium. First, we present results of a recent study that compares the phenomenology of charmonium spectroscopy using smooth and sudden string breaking potentials. Next, we present results of a study that explores the possibility that J/ψ might be bound in a large nucleus through the excitation of a color singlet intermediate states of D and D* mesons with density masses. © 2010 American Institute of Physics.

Dos pés à cabeça: a reestruturação produtiva e a atuação das mulheres nas indústrias no município de Franca/SP

Pós-graduação em Serviço Social - FCHS

Production of charmed pseudoscalar mesons in antiproton-proton annihilation

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Criança, Infância e Teoria Histórico-Cultural: convite à reflexão

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Measurement of the muon charge asymmetry in inclusive pp -> W plus X production at root s=7 TeV and an improved determination of light parton distribution functions

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Tatiana Belinky: a presença de suas obras em sala de aula

The life and work of Tatiana Belinky are steeped in fantasy, his works speak of magic and charm of the stories. This research aimed to investigate the knowledge that teachers in the early years of Primary Education (Early Childhood and 1st year of elemen tary school education) have on the work of Tatiana Belinky. Therefore, a survey research theoretical framework in printed documents and digital media (websites and platforms indexed) was performed in order that he might collect data about the life and work of this writer. Concomitantly, the benchmark survey, a field study with teachers from preschool (4) 1st year of elementary school (2), a public school in the town of Jaú, in which a questionnaire semi - structured questions was used was performed . The survey and qualitative study, a case study allowed the lifting of the life and work of the author, approximately 104 considered early childhood education. As to knowledge of teachers studied in the research almost all said they knew the author, however there were few works cited by them

ψ(3770) resonance and its production in p¯p→DD¯

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Searches for heavy Higgs bosons in two-Higgs-doublet models and for t→ch decay using multilepton and diphoton final states in pp collisions at 8 TeV

Searches are presented for heavy scalar (H) and pseudoscalar (A) Higgs bosons posited in the two doublet model (2HDM) extensions of the standard model (SM). These searches are based on a data sample of pp collisions collected with the CMS experiment at the LHC at a center-of-mass energy of root s = 8 TeV and corresponding to an integrated luminosity of 19.5 fb(-1). The decays H -> hh and A -> Zh, where h denotes an SM-like Higgs boson, lead to events with three or more isolated charged leptons or with a photon pair accompanied by one or more isolated leptons. The search results are presented in terms of the H and A production cross sections times branching fractions and are further interpreted in terms of 2HDM parameters. We place 95% C.L. cross section upper limits of approximately 7 pb on sigma B for H -> hh and 2 pb for A -> Zh. Also presented are the results of a search for the rare decay of the top quark that results in a charm quark and an SM Higgs boson, t -> ch, the existence of which would indicate a nonzero flavor-changing Yukawa coupling of the top quark to the Higgs boson. We place a 95% C.L. upper limit of 0.56% on B(t -> ch).

Search for anomalous production of events with three or more leptons in pp collisions at root s=8 TeV

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

A simple relativistic model of p(p)over-bar-]K+K-

We compare a model calculation with some available experimental data (LEAP 92) on KK̄ production. We believe the simplicity of the model makes it a useful tool for studying charm and beauty baryon production, for which also experimental data will soon be profuse.

Inesgotável fonte de magia: o poder encantatório da palavra em um conjuro anglo-saxônico

This work aims to analyze the Wið Færstice, a charm from the anglo-saxon literature, translated as Charm for a sudden Stich. Inside of the imaginarium in this context, the refered pain is assigned to a dart shooted by an elf, witch or pagan god. This charm is included in the anglo-saxon medicine manuscripts andwas wrtitten in form of poetry, presenting characteristics of the poetic work, presenting aspects of the poetic do that once considered historical, cultural and artistic issues concerning the people and the Anglo-Saxon culture, indicate a close relationship between poetry as a form of thought and knowledge and magic as a way of interpreting the world. At this respect we call here, for methodological purposes, incantatory power of the word. From the analysis of this referred enchantment, as well as of the elements in the text, is intended to demonstrate how articulates this incantatory power of words and how to give, within the Anglo-Saxon conception of the Sacred, the transformation of reality through the pronouncement of words