نتایج جستجو برای: hadronic interaction
تعداد نتایج: 573854 فیلتر نتایج به سال:
Understanding hadronic multiparticle production is important for deriving the composition and energy spectrum of primary cosmic rays from air shower measurements at high energy. In this article, predictions of hadronic interaction models are discussed, emphasizing uncertainties and constraints due to model assumptions and accelerator measurements. The sensitivity of shower observables to model ...
Net charge fluctuations in a hadron gas are studied using an effective hadronic interaction. The emphasis of this work is to investigate the corrections of hadronic interactions to the charge fluctuations of a noninteracting resonance gas. Several methods such as loop, density, and virial expansions are employed. The calculations are also extended to SU(3), and some resummation schemes are cons...
The hadronic sector of the standard model at low energies is described by a non–decoupling effective field theory, chiral perturbation theory. An introduction is given to the construction of effective chiral Lagrangians, both in the purely mesonic sector and with inclusion of baryons. The connection between the relativistic formulation and the heavy baryon approach to chiral perturbation theory...
To study heavy ion collisions at energies available from the Relativistic Heavy Ion Collider ~RHIC!, we have developed a multiphase transport model that includes both initial partonic and final hadronic interactions. Specifically, the Zhang’s parton cascade ~ZPC! model, which uses as input the parton distribution from the heavy ion jet interaction generator ~HIJING! model, is extended to includ...
Ultrahigh energy cosmic ray air showers probe particle physics at energies beyond the reach of accelerators. Here we introduce a new method to test hadronic interaction models without relying on the absolute energy calibration, and apply it to events with primary energy 6-16 EeV (E_{CM}=110-170 TeV), whose longitudinal development and lateral distribution were simultaneously measured by the Pi...
In this paper we determine the weak-interaction corrections of order αs α to hadronic top-quark pair production. First we compute the one-loop weak corrections to tt̄ production due to gluon fusion and the order αs α corrections to tt̄ production due to (anti)quark gluon scattering in the Standard Model. With our previous result [20] this yields the complete corrections of order αs α to gg, qq̄, q...
The engineering array of the southern Pierre Auger Observatory (PAO) [3] in Argentina has recently started to take data. The interpretation of the measurements requires reliable numerical simulations of extensive air showers (EAS) in the extremely-high energy (EHE) range > 10 eV. A large uncertainty in such simulations arises from the models which describe the hadronic interactions. As one has ...
Experiments measuring cosmic rays above an energy of ∼ 10 eV deduce the energy and mass of the primary cosmic ray particles from air-shower simulations. We investigate the importance of hadronic interactions at low and high energies on the distributions of muons and electrons in showers on ground. In air shower simulation programs, hadronic interactions below an energy threshold in the range fr...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید