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| Main Author: | |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2402.14341 |
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Table of Contents:
- Advantages of the amplitude method for the vector-meson-production description in respect of the spin-density-matrix-element (SDME) method are discussed. It is shown that for any nonzero amplitudes the angular distribution of final particles is non-negative. The exact formula for $R = \frac{d σ_L}{d t}/\frac{d σ_T}{d t}$ in terms of the SDMEs for spinless targets and the new approximate formula for nucleons are presented.