We present an unbiased determination of the charm content of the proton, in which the charm parton distribution function (PDF) is parametrized on the same footing as the light quarks and the gluon in a global PDF analysis. This determination relies on the NLO calculation of deep-inelastic structure functions in the FONLL scheme, generalized to account for massive charm-initiated contributions. ...

Chronic heart failure (HF) is a major cause of morbidity and mortality particularly in the elderly and a growing healthcare burden in Italy. The objective was to assess the cost-effectiveness of candesartan cilexetil, an angiotensin II type 1 receptor blocker (ARB) for the treatment of HF. A pre-specified economic evaluation was conducted on resource utilization (cardiovascular drug treatment, ...

Theory predicts that charm quarks are produced by initial gluon fusion during the very early stages of the matter produced in a relativistic heavyion collision. These gluon fusion reactions occur through high momentum transfer (Q) processes before the thermalization of the collision fireball [1]. Gluon fusion reactions scale with the number of binary (nucleon-nucleon) collisions, allowing us to...

Production of final states containing open charm (c) and beauty (b) quarks at HERA is reviewed. Photoproduction (PHP) of the charm meson resonances D∗, D and Ds, as well as D∗ production in the deep inelastic scattering (DIS) regime, are measured and compared to QCD predictions. The excited charm mesons D 1(2420), D ∗0 2 (2460) and D ± s1(2536) have been observed and the rates of charm quarks h...

We present a new network coordinate system, Charm, embedding round-trip time latencies into a Euclidean space. Charm is based on a particle system model with two spatial force interactions: attraction and repulsion. The update algorithm (Charming) that Charm uses is simple and lightweight: At each latency sample, the algorithm either “attracts” the communicating nodes to each other or “repels” ...

Inclusive charm meson production cross sections in the deep inelastic scattering and photoproduction regimes are compared with QCD leading and next-to-leading order (NLO) calculations. The NLO predictions are significantly below the data in some parts of the measured kinematic range. Angular distributions of dijet events with charm show clear evidence for the existence of charm originating from...

We present a summary of the experimental issues, detector design and plans from the Third Workshop on the Tau-Charm Factory, Marbella, 1–6 June 1993. Presented at the Third Workshop on the Tau-Charm Factory Marbella, Spain, 1–6 June 1993 EXPERIMENTAL ASPECTS OF THE TAU-CHARM FACTORY Jasper Kirkby CERN, Geneva, Switzerland Abstract We present a summary of the experimental issues, detector design...

The charm physics program accessible to a Tau-Charm Factory is summarized. Semileptonic, leptonic, hadronic, rare and forbidden charm decay modes are discussed, as well as D 0 − ¯ D 0 mixing and CP violation in the charm sector. The theoretical expectations in the Standard Model and beyond as well as the experimental capabilities of a Tau-Charm Factory are examined for each of the above process...

We present a study of the effect of charm quarks on the QCD equation of state using partiallyquenched p4 charm quarks on a dynamically generated 2+1 flavor background, at zero chemical potential. We show preliminary results for the charm quark contribution to the energy density and pressure in the high temperature region (Tc < T < 4Tc) and compare it to the free-field calculation. The charm qua...

Neutral orbitally excited P-wave charm mesons have been reconstructed in the D * ± π ∓ final state and the charm-strange meson D ± s1 (2536) was found in the D * ± K 0 s final state. A search for radially excited charm mesons in the D * ± π + π − final state has also been performed. A search for a charm pentaquark state near 3.1 GeV was made in the decay mode D * ± p ∓. Using more than 40,000 r...