|Author||Ascoli, R. ♦ Bottino, A. ♦ Molinari, A.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||PHYSICS ♦ INTEGRALS ♦ MATHEMATICS ♦ MATRICES ♦ MOMENTUM ♦ PARTICLES ♦ SCATTERING|
|Abstract||The problem of finding which snalyticity properties of the production amplitudes are required to deduce, by mesns of the S-matrix unitarity relations, analyticity properties of scattering amplitudes as functions of the momentum transfer is solved. The fundamental feature of the results is that analyticity properties of the production amplitudes are required as functions of two and only two dynamical vsriables, whichever be the number of produced particles. The general method given does not require the actual calculation of any integral. In particular, for the production amplitudes a condition is given sufficient for the analyticity within an ellipse of the imaginary part of the scattering amplitude as function of the momentum transfer. (auth)|
|Learning Resource Type||Article|
|Publisher Department||Universita, Turin ♦ and Istituto Nazionale di Fisica Nucleare, Turin|
|Organization||Universita, Turin ♦ and Istituto Nazionale di Fisica Nucleare, Turin|
Ministry of Human Resource Development (MHRD) under its National Mission on Education through Information and Communication Technology (NMEICT) has initiated the National Digital Library of India (NDLI) project to develop a framework of virtual repository of learning resources with a single-window search facility. Filtered and federated searching is employed to facilitate focused searching so that learners can find out the right resource with least effort and in minimum time. NDLI is designed to hold content of any language and provides interface support for leading vernacular languages, (currently Hindi, Bengali and several other languages are available). It is designed to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is being developed to help students to prepare for entrance and competitive examinations, to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is being developed at Indian Institute of Technology Kharagpur.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Human Resource Development (MHRD), through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
For any issue or feedback, please write to email@example.com