Experimental Particle Physics Group
نویسنده
چکیده
Energy flow distributions from tagged γγ events generated with HERWIG are presented for Ebeam = 45.6 GeV (LEP1) and Ebeam = 175 GeV (top-quark threshold at a future e+e− Linear Collider). They have very similar shapes regardless of the beam energy. Using the present knowledge of the LEP F γ 2 analyses, it is forseen that the understanding of the hadronic response of the forward region of the LC detector is vital to the development of the final state models in γγ Monte Carlos. Such models are relied upon to extract F γ 2 from the data, and hence understanding the forward region well may be crucial in the determination of whether or not a low-x rise exists in the photon structure function.
منابع مشابه
Preparation and Characterization of Manganese Ferrite Nanoparticles via Co-precipitation Method for Hyperthermia
In this work, Mn ferrite nanopowders were prepared by co-precipitation method and were characterized. Phase identification of the nanopowders was performed by X-ray diffraction method and the mean particle size of the nanopowders was calculated by Scherrer's formula, using necessary corrections. Magnetic parameters of the prepared nanopowders were measured by a vibrating sample magnetome...
متن کاملRoadmap ( S ) for Particle Physics ∗
For many decades, experimental particle physics has been characterised by projects realised in international cooperation. With very ambitious scientific programmes and particle beams reaching higher and higher energies and intensities, accelerators are becoming even more sophisticated and very expensive. It further enhances the importance of international collaborations not only for performing ...
متن کاملExperimental Particle Physics Group Jets and Prompt Photons in Photoproduction at Zeus
In the ZEUS experiment at HERA, photoproduction processes have been studied for photon-proton centre-of-mass energies in the range 100 < Wp < 300 GeV and jet transverse energies extending to E jet T 70 GeV. The data contribute to our understanding of QCD dynamics, and also provide new constraints on the photon's parton density.
متن کاملکاربرد پوسته برنج بهعنوان یک منبع فیبر نامحلول در جیره جوجههای گوشتی
The experiment was carried out using 200 Ross 308 broiler chickens in a completely randomized design with 5 treatment and 4 replicates. The experimental diets were consisted of a control free hulls diet and four diets containing 0.75 or 1.5 percent rice hulls with particle sizes of less than 1 mm or between 1-2 mm. The performance traits were determined through 42 d experimental period and car...
متن کاملCalculation of the rotational bands for the 20Ne isotope
The phenomenon of clustering in light nuclei is one of the interesting topics while its study is difficult. In this article, a simple model (the two-particle model which includes a core and a cluster) is presented for the investigation of the positive and the negative parity of rotational bands of 20Ne isotope. The Deng-Fan and the Hellman potentials are considered as the core and the cluster p...
متن کاملCovering Groups of the Gauge Group for the Standard Elementary Particle Model
We determine all Lie groups compatible with the gauge structure of the Standard Elementary Particle Model (SM) and their representations. The groups are specified by congruence equations of quantum numbers. By comparison with the experimental results, we single out one Lie group GSM and show that this choice implies certain old and new correlations between the quantum numbers of the SM quantum ...
متن کامل