نتایج جستجو برای: on given cross sections

تعداد نتایج: 8839167  

1999
Y. Abe K. Okazaki Y. Aritomo T. Wada M. Ohta

Dynamical reaction theory is presented for synthesis of superheavy elements. Characteristic features of formation and surviving are discussed, which combinedly determine final residue cross sections of superheavy elements. Preliminary results on Z=114 are also given.

1977
R. Blankenbecler S. J. Brodsky J. F. Gunion

Consistent values for the fundamental dimensional coupling constants of hadrons to their valence quarks are determined from large momentum transfer elastic scattering, photoproduction, form factors, and momentum distributions. We then show that the constituent interchange model hard scattering subprocesses Mq-Mq and Bq-Bq (and their crossing variants) are of sufficient magnitude to account for ...

2008
N. Paar T. Marketin D. Vretenar

We present a novel approach to describe charged-current weak interaction rates in nuclei; the weak lepton-hadron interaction is given in the standard current-current form, the nuclear ground state is described in the relativistic Hartree-Bogoliubov model, and the relevant transitions to excited nuclear states are calculated in the relativistic proton-neutron quasiparticle random phase approxima...

1996
Nikolaos Kidonakis

of the Dissertation QCD resummation and heavy quark cross sections by Nikolaos Kidonakis Doctor of Philosophy in Physics State University of New York at Stony Brook 1996 In this dissertation a detailed analysis of heavy quark production is given with an emphasis on the resummation of soft gluon corrections. First we calculate the production cross sections for top quark production at the Fermila...

2005
Yuki Mori Shigeo Takahashi Takeo Igarashi Yuriko Takeshima Issei Fujishiro

Cross-sectioning is a popular method for visualizing the complicated inner structures of three-dimensional volume datasets. However, the process is usually manual, meaning that a user must manually specify the cross-section’s location using a repeated trial-and-error process. To find the best cross-sections, this method requires that a user is knowledgeable and experienced. This paper proposes ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده ادبیات و زبانهای خارجی 1392

abstract this study aimed at investigating the possible relationship between self-assessment in writing and self-regulation of iranian efl learners. the main purpose of the study was not only to report and inform about this relationship, but also to investigate and find practical outcomes of the incorporation of self-assessment in writing, such as improving writing skill. the research was carr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1393

abstract this quasi-experimental study was aimed at examining the impact of storyline complexity on the grammatical accuracy and complexity of advanced and intermediate efl learners. a total of 65 advanced and intermediate efl learners were selected from iran language institute (ili). an intact group including 35 intermediate participants and another intact group with 30 advanced participants ...

Journal: :Journal of The Sedimentological Society of Japan 2021

Although flood maps based on the deterministic approach play an important role in minimizing flood losses, there is considerable uncertainty in calculating the level of water inundation. Roughness is a key parameter in water surface elevation. Since roughness is not easily measurable and is estimated based on experimental and laboratory methods, it introduces a significant degree of uncertainty...

Although there is no experimental data available for antihydrogen formation following antiprotons impact on positroium atoms, as a charge transfer reaction, at incident energies which are suitable for antimatter high-precision spectroscopic studies, measurements were carried out for its charge-conjugate reaction i. e. hydrogen formation, by protons impact on positronium. In this study, a two-st...

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