Lorentz Integral Transform for Inclusive and Exclusive Cross Sections with the Lanczos Method

The Lorentz Integral Transform (LIT) method is reformulated via the Lanczos algorithm both for inclusive and exclusive reactions. The new technique is tested for the total photoabsorption cross section of 3H and 4He. Due to the rapid convergence of the algorithm one has a decrease in cpu time by two orders of magnitude, but at the same time an excellent agreement with the results of a conventional LIT calculation. The present work opens up the possibility of ab initio calculations for inclusive and exclusive processes for A greater equal 6 with inclusion of complete final state interactions.Comment: LaTeX, 13 pages, 3 ps figure

Physics of Electroweak Interactions with Nuclei

In this series of lectures it is illustrated how one can study the strong dynamics of nuclei by means of the electroweak probe. In particular, the most important steps to derive the cross sections in first order perturbation theory are reviewed. In the derivation the focus is put on the main ingredients entering the hadronic part (response functions), i.e. the initial and final states of the system and the operators relevant for the reaction. Emphasis is put on the electromagnetic interaction with few-nucleon systems. The Lorentz integral transform method to calculate the response functions ab initio is described. A few examples of the comparison between theoretical and experimental results are shown. The dependence of the response functions on the nuclear interaction and in particular on three-body forces is emphasized.Comment: Lectures given at the International Scientific Meeting on Nuclear Physics, La Rabida, Huelva (Spain), July 4-10, 200

Stochastic Maximum Principle for a PDEs with noise and control on the boundary

In this paper we prove necessary conditions for optimality of a stochastic control problem for a class of stochastic partial differential equations that is controlled through the boundary. This kind of problems can be interpreted as a stochastic control problem for an evolution system in an Hilbert space. The regularity of the solution of the adjoint equation, that is a backward stochastic equation in infinite dimension, plays a crucial role in the formulation of the maximum principle.Comment: 15pg

Measurement of Direct CP Violation by NA48

The NA48 experiment at the CERN SPS aims to search for direct CP violation in the $K^0$ system through the measurement of ${\rm Re}(\epsilon'/ \epsilon)$ with high accuracy. In 1999 the NA48 collaboration has published its first measuremen based on 1997 data. A new result, based on 1998 and 1999 data, is presented in this article. The result, combined with 1997 data, ${\rm Re}(\epsilon'/\epsilon) = (15.3 \pm 2.6)\times 10^{-4}$, contributes to the precise determination of the size of direct CP violation.Comment: 8 pages, 6 figures (in eps) talk given at XXXI International Symposium on Multiparticle Dynamics, Sep. 1-7, 2001, Datong China URL http://ismd31.ccnu.edu.cn

Copyright Exceptions as Users’ Rights? An Empirical Critique

Dr. Emily Hudson, the Career Development Fellow in Intellectual Property Law at the Oxford Intellectual Property Research Centre at the University of Oxford, questions the prevailing legal and academic perceptions of the CCH Canadian Ltd. v. Law Society of Upper Canada (2004 SCC 13) judgment

Copyright Exceptions as Users’ Rights? An Empirical Critique

Dr. Emily Hudson, the Career Development Fellow in Intellectual Property Law at the Oxford Intellectual Property Research Centre at the University of Oxford, questions the prevailing legal and academic perceptions of the CCH Canadian Ltd. v. Law Society of Upper Canada (2004 SCC 13) judgment