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

Preprint

4 February 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.nucl-th/0202009

Abstract

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.

Keywords

LORENTZ INTEGRAL TRANSFORM
AB INITIO CALCULATIONS
CROSS SECTIONS
ALGORITHM
LANCZOS

All Related Versions

Version 1, 2002-02-04, ArXiv
Published version: Few-Body Systems, 33 (4), 259.

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