نتایج جستجو برای: hadron current
تعداد نتایج: 793434 فیلتر نتایج به سال:
We compare recent lattice studies of QCD thermodynamics at non-zero quark chemical potential with the thermodynamics of a hadron resonance gas. We argue that for T ≤ Tc the equation of state derived from Monte–Carlo simulations of two flavour QCD at non-zero chemical potential can be well described by a hadron resonance gas when using the same set of approximations as used in current lattice ca...
We review current status of theoretical predictions of lifetimes of heavy hadrons in heavy-quark expansion. We present a calculation of subleading 1/m b corrections to spectator effects in the ratios of beauty hadron lifetimes. We find that these effects are sizable and should be taken into account in systematic analyses of heavy hadron lifetimes. In particular, the inclusion of 1/m b correctio...
A synopsis exemplifying the employment of Dyson-Schwinger equations in the calculation and explanation of hadron electromagnetic form factors and related phenomena. In particular the contribution: presents the pion form factor computed simultaneously at spacelike and timelike momenta; reports aspects of the evolution of the nucleon and ∆ masses with current-quark mass and the correlation of the...
This talk is a review of news in low x physics which, I think, would be useful for writing of the Monte Carlo codes. The following topics are discussed here: (i) the next-to-leading order BFKLPomeron; (ii) two indications for shadowing corrections (SC) in DIS from HERA data; (iii) matching of “soft” and “hard” photon proton interactions; and (iv) survival probability for large rapidity gap ( LR...
Detector R&D is advancing on many fronts of experimental particle physics, including efforts to produce massive, highly efficient, costeffective detectors for future neutrino experiments, for experiments requiring high bandwidth and high precision, such as hadron B factories, rare kaon decay experiments, and tau/charm factories, and for linear collider experiments. In recent years, the needs of...
Structure function data together with other measurements from fixed-target deep inelastic scattering and hadron-hadron collider experiments which contribute to our knowledge of the parton density functions are reviewed. The inclusive cross-section measurements of neutral and charged current interactions at HERA are presented and their impact on the parton density functions is discussed. Future ...
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