Results 11 to 20 of about 2,780 (23)
πe3 Form Factor f− Near the Mass Shell
The generalized Ward‐Takahashi identity (gWTI) in the pion sector for broken isotopic symmetry is derived and used for the model‐independent calculation of the longitudinal form factor f− of the πe3 vector vertex. The on‐shell f− is found to be proportional to the mass difference of the pions and the difference between the vector isospin T = 1 and ...
M. I. Krivoruchenko, Enrico Lunghi
wiley +1 more source
We investigate heavy haze episodes (with dense concentrations of atmospheric aerosols) occurring around Beijing in June, when serious air pollution was detected by both satellite and ground measurements. Aerosol retrieval is achieved by radiative transfer simulation in an Earth atmosphere model.
Sonoyo Mukai+3 more
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Advances in Study of Poincaré Inequalities and Related Operators
We will present an up‐to‐date account of the recent advances made in the study of Poincaré inequalities for differential forms and related operators.
Yuming Xing, Shusen Ding, Peilin Shi
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The Validity of Dimensional Regularization Method on Fractal Spacetime
Svozil developed a regularization method for quantum field theory on fractal spacetime (1987). Such a method can be applied to the low‐order perturbative renormalization of quantum electrodynamics but will depend on a conjectural integral formula on non‐integer‐dimensional topological spaces.
Yong Tao, Fernando Simões
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Optimal Investment with Multiple Risky Assets for an Insurer in an Incomplete Market
This paper studies the optimal investment problem for an insurer in an incomplete market. The insurer′s risk process is modeled by a Lévy process and the insurer is supposed to have the option of investing in multiple risky assets whose price processes are described by the standard Black‐Scholes model.
Hui Zhao+3 more
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More on Superconductors via Gauge/Gravity Duality with Nonlinear Maxwell Field
We have developed the recent investigations on the second‐order phase transition in the holographic superconductor using the probe limit for a nonlinear Maxwell field strength coupled to a massless scalar field. By analytical methods, based on the variational Sturm‐Liouville minimization technique, we study the effects of the spacetime dimension and ...
Davood Momeni+3 more
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An atom embedded inside photonic crystals can form a photon‐atom bound state if the emission frequency of the excited atom is lying inside the photonic‐band gap of photonic crystals. We studied the dynamics of the energy relaxation and decoherence of a QPAB, qubit made by a photon‐atom bound state in photonic crystals.
Jing-Nuo Wu+4 more
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Abstract A new, complete three‐moment bulk microphysics approach is proposed that includes the effects of all relevant microphysical processes on the evolution of ice particle size distribution (PSD) width. This extends the three‐moment approach that was originally implemented in the Predicted Particle Properties (P3) scheme that assumed sedimentation ...
Hugh Morrison+2 more
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Gauge and Lorentz Transformation Placed on the Same Foundation
We show that a “dynamical” interaction for arbitrary spin can be constructed in a straightforward way if gauge and Lorentz transformations are placed on the same foundation. As Lorentz transformations act on space‐time coordinates, gauge transformations are applied to the gauge field.
Rein Saar+4 more
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Adopt two types of damage variables, a and D, and make the bidirectional combined coordinate system and the bidirectional curves in the whole process, describing their damage evolutive behaviors on fatigue damage‐fracture to elastic‐plastic steels; communicate the cross‐referencing between their computing models and between describing curves at each ...
Yangui Yu+4 more
wiley +1 more source